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Directory >> /home/n170823s/public_html/nvqlevel3.co.uk/wp-includesaf4538/js/dist/

File / Folder	Size	Action
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development	--	ren
script-modules	--	ren
vendor	--	ren
.htaccess	0.231KB	edt ren
a11y.js	5.453KB	edt ren
a11y.min.js	2.41KB	edt ren
annotations.js	15.13KB	edt ren
annotations.min.js	5.584KB	edt ren
api-fetch.js	17.456KB	edt ren
api-fetch.min.js	6.286KB	edt ren
autop.js	9.729KB	edt ren
autop.min.js	5.471KB	edt ren
base-styles.js	0.047KB	edt ren
base-styles.min.js	0.039KB	edt ren
blob.js	2.3KB	edt ren
blob.min.js	1.126KB	edt ren
block-directory.js	55.67KB	edt ren
block-directory.min.js	21.921KB	edt ren
block-editor.js	2.7MB	edt ren
block-editor.min.js	1.01MB	edt ren
block-library.js	2.57MB	edt ren
block-library.min.js	1.09MB	edt ren
block-serialization-def...	6.538KB	edt ren
block-serialization-def...	2.359KB	edt ren
block-serialization-spe...	50.481KB	edt ren
block-serialization-spe...	10.342KB	edt ren
blocks.js	381.061KB	edt ren
blocks.min.js	180.583KB	edt ren
commands.js	151.705KB	edt ren
commands.min.js	63.104KB	edt ren
components.js	3.83MB	edt ren
components.min.js	786.243KB	edt ren
compose.js	80.842KB	edt ren
compose.min.js	28.212KB	edt ren
core-commands.js	28.679KB	edt ren
core-commands.min.js	11.834KB	edt ren
core-data.js	612.029KB	edt ren
core-data.min.js	210.431KB	edt ren
customize-widgets.js	91.572KB	edt ren
customize-widgets.min.js	36.581KB	edt ren
data-controls.js	4.131KB	edt ren
data-controls.min.js	1.737KB	edt ren
data.js	82.784KB	edt ren
data.min.js	25.884KB	edt ren
date.js	176.344KB	edt ren
date.min.js	141.185KB	edt ren
deprecated.js	3.04KB	edt ren
deprecated.min.js	1.25KB	edt ren
dom-ready.js	1.473KB	edt ren
dom-ready.min.js	0.765KB	edt ren
dom.js	34.614KB	edt ren
dom.min.js	12.616KB	edt ren
edit-post.js	117.396KB	edt ren
edit-post.min.js	49.071KB	edt ren
edit-site.js	1.69MB	edt ren
edit-site.min.js	684.419KB	edt ren
edit-widgets.js	160.248KB	edt ren
edit-widgets.min.js	61.825KB	edt ren
editor.js	2.5MB	edt ren
editor.min.js	1021.223KB	edt ren
element.js	27.932KB	edt ren
element.min.js	12.132KB	edt ren
escape-html.js	2.291KB	edt ren
escape-html.min.js	1.031KB	edt ren
format-library.js	73.339KB	edt ren
format-library.min.js	28.848KB	edt ren
hooks.js	11.955KB	edt ren
hooks.min.js	4.897KB	edt ren
html-entities.js	1.646KB	edt ren
html-entities.min.js	0.824KB	edt ren
i18n.js	15.303KB	edt ren
i18n.min.js	5.563KB	edt ren
is-shallow-equal.js	2.693KB	edt ren
is-shallow-equal.min.js	1.062KB	edt ren
keyboard-shortcuts.js	9.681KB	edt ren
keyboard-shortcuts.min.js	3.41KB	edt ren
keycodes.js	8.302KB	edt ren
keycodes.min.js	2.871KB	edt ren
list-reusable-blocks.js	13.061KB	edt ren
list-reusable-blocks.mi...	5.207KB	edt ren
media-utils.js	637.146KB	edt ren
media-utils.min.js	237.605KB	edt ren
notices.js	10.113KB	edt ren
notices.min.js	4.35KB	edt ren
nux.js	10.324KB	edt ren
nux.min.js	3.919KB	edt ren
patterns.js	58.246KB	edt ren
patterns.min.js	21.599KB	edt ren
plugins.js	11.671KB	edt ren
plugins.min.js	4.722KB	edt ren
preferences-persistence.js	17.216KB	edt ren
preferences-persistence...	5.456KB	edt ren
preferences.js	21.068KB	edt ren
preferences.min.js	7.68KB	edt ren
primitives.js	5.081KB	edt ren
primitives.min.js	1.944KB	edt ren
priority-queue.js	10.024KB	edt ren
priority-queue.min.js	3.317KB	edt ren
private-apis.js	4.094KB	edt ren
private-apis.min.js	2.625KB	edt ren
react-i18n.js	3.905KB	edt ren
react-i18n.min.js	1.491KB	edt ren
redux-routine.js	24.683KB	edt ren
redux-routine.min.js	9.615KB	edt ren
reusable-blocks.js	20.512KB	edt ren
reusable-blocks.min.js	7.188KB	edt ren
rich-text.js	97.037KB	edt ren
rich-text.min.js	39.855KB	edt ren
router.js	36.12KB	edt ren
router.min.js	14.097KB	edt ren
server-side-render.js	10.968KB	edt ren
server-side-render.min.js	3.906KB	edt ren
shortcode.js	7.959KB	edt ren
shortcode.min.js	3.248KB	edt ren
style-engine.js	17.617KB	edt ren
style-engine.min.js	6.381KB	edt ren
sync.js	359.401KB	edt ren
sync.min.js	118.113KB	edt ren
theme.js	127.647KB	edt ren
theme.min.js	56.084KB	edt ren
token-list.js	6.115KB	edt ren
token-list.min.js	1.585KB	edt ren
undo-manager.js	5.295KB	edt ren
undo-manager.min.js	1.664KB	edt ren
upload-media.js	55.666KB	edt ren
upload-media.min.js	23.019KB	edt ren
url.js	23.39KB	edt ren
url.min.js	10.093KB	edt ren
viewport.js	6.606KB	edt ren
viewport.min.js	2.209KB	edt ren
warning.js	1.522KB	edt ren
warning.min.js	0.703KB	edt ren
widgets.js	50.08KB	edt ren
widgets.min.js	20.793KB	edt ren
wordcount.js	6.935KB	edt ren
wordcount.min.js	2.412KB	edt ren

"use strict";
var wp;
(wp ||= {}).sync = (() => {
  var __create = Object.create;
  var __defProp = Object.defineProperty;
  var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
  var __getOwnPropNames = Object.getOwnPropertyNames;
  var __getProtoOf = Object.getPrototypeOf;
  var __hasOwnProp = Object.prototype.hasOwnProperty;
  var __commonJS = (cb, mod) => function __require() {
    return mod || (0, cb[__getOwnPropNames(cb)[0]])((mod = { exports: {} }).exports, mod), mod.exports;
  };
  var __export = (target, all2) => {
    for (var name in all2)
      __defProp(target, name, { get: all2[name], enumerable: true });
  };
  var __copyProps = (to, from2, except, desc) => {
    if (from2 && typeof from2 === "object" || typeof from2 === "function") {
      for (let key of __getOwnPropNames(from2))
        if (!__hasOwnProp.call(to, key) && key !== except)
          __defProp(to, key, { get: () => from2[key], enumerable: !(desc = __getOwnPropDesc(from2, key)) || desc.enumerable });
    }
    return to;
  };
  var __toESM = (mod, isNodeMode, target) => (target = mod != null ? __create(__getProtoOf(mod)) : {}, __copyProps(
    // If the importer is in node compatibility mode or this is not an ESM
    // file that has been converted to a CommonJS file using a Babel-
    // compatible transform (i.e. "__esModule" has not been set), then set
    // "default" to the CommonJS "module.exports" for node compatibility.
    isNodeMode || !mod || !mod.__esModule ? __defProp(target, "default", { value: mod, enumerable: true }) : target,
    mod
  ));
  var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);

// package-external:@wordpress/private-apis
  var require_private_apis = __commonJS({
    "package-external:@wordpress/private-apis"(exports, module) {
      module.exports = window.wp.privateApis;
    }
  });

// package-external:@wordpress/hooks
  var require_hooks = __commonJS({
    "package-external:@wordpress/hooks"(exports, module) {
      module.exports = window.wp.hooks;
    }
  });

// package-external:@wordpress/api-fetch
  var require_api_fetch = __commonJS({
    "package-external:@wordpress/api-fetch"(exports, module) {
      module.exports = window.wp.apiFetch;
    }
  });

// node_modules/fast-deep-equal/es6/index.js
  var require_es6 = __commonJS({
    "node_modules/fast-deep-equal/es6/index.js"(exports, module) {
      "use strict";
      module.exports = function equal(a, b) {
        if (a === b) return true;
        if (a && b && typeof a == "object" && typeof b == "object") {
          if (a.constructor !== b.constructor) return false;
          var length3, i, keys2;
          if (Array.isArray(a)) {
            length3 = a.length;
            if (length3 != b.length) return false;
            for (i = length3; i-- !== 0; )
              if (!equal(a[i], b[i])) return false;
            return true;
          }
          if (a instanceof Map && b instanceof Map) {
            if (a.size !== b.size) return false;
            for (i of a.entries())
              if (!b.has(i[0])) return false;
            for (i of a.entries())
              if (!equal(i[1], b.get(i[0]))) return false;
            return true;
          }
          if (a instanceof Set && b instanceof Set) {
            if (a.size !== b.size) return false;
            for (i of a.entries())
              if (!b.has(i[0])) return false;
            return true;
          }
          if (ArrayBuffer.isView(a) && ArrayBuffer.isView(b)) {
            length3 = a.length;
            if (length3 != b.length) return false;
            for (i = length3; i-- !== 0; )
              if (a[i] !== b[i]) return false;
            return true;
          }
          if (a.constructor === RegExp) return a.source === b.source && a.flags === b.flags;
          if (a.valueOf !== Object.prototype.valueOf) return a.valueOf() === b.valueOf();
          if (a.toString !== Object.prototype.toString) return a.toString() === b.toString();
          keys2 = Object.keys(a);
          length3 = keys2.length;
          if (length3 !== Object.keys(b).length) return false;
          for (i = length3; i-- !== 0; )
            if (!Object.prototype.hasOwnProperty.call(b, keys2[i])) return false;
          for (i = length3; i-- !== 0; ) {
            var key = keys2[i];
            if (!equal(a[key], b[key])) return false;
          }
          return true;
        }
        return a !== a && b !== b;
      };
    }
  });

// packages/sync/build-module/index.mjs
  var index_exports = {};
  __export(index_exports, {
    Awareness: () => Awareness,
    Y: () => yjs_exports,
    YJS_VERSION: () => YJS_VERSION,
    privateApis: () => privateApis
  });

// node_modules/yjs/dist/yjs.mjs
  var yjs_exports = {};
  __export(yjs_exports, {
    AbsolutePosition: () => AbsolutePosition,
    AbstractConnector: () => AbstractConnector,
    AbstractStruct: () => AbstractStruct,
    AbstractType: () => AbstractType,
    Array: () => YArray,
    ContentAny: () => ContentAny,
    ContentBinary: () => ContentBinary,
    ContentDeleted: () => ContentDeleted,
    ContentDoc: () => ContentDoc,
    ContentEmbed: () => ContentEmbed,
    ContentFormat: () => ContentFormat,
    ContentJSON: () => ContentJSON,
    ContentString: () => ContentString,
    ContentType: () => ContentType,
    Doc: () => Doc,
    GC: () => GC,
    ID: () => ID,
    Item: () => Item,
    Map: () => YMap,
    PermanentUserData: () => PermanentUserData,
    RelativePosition: () => RelativePosition,
    Skip: () => Skip,
    Snapshot: () => Snapshot,
    Text: () => YText,
    Transaction: () => Transaction,
    UndoManager: () => UndoManager,
    UpdateDecoderV1: () => UpdateDecoderV1,
    UpdateDecoderV2: () => UpdateDecoderV2,
    UpdateEncoderV1: () => UpdateEncoderV1,
    UpdateEncoderV2: () => UpdateEncoderV2,
    XmlElement: () => YXmlElement,
    XmlFragment: () => YXmlFragment,
    XmlHook: () => YXmlHook,
    XmlText: () => YXmlText,
    YArrayEvent: () => YArrayEvent,
    YEvent: () => YEvent,
    YMapEvent: () => YMapEvent,
    YTextEvent: () => YTextEvent,
    YXmlEvent: () => YXmlEvent,
    applyUpdate: () => applyUpdate,
    applyUpdateV2: () => applyUpdateV2,
    cleanupYTextFormatting: () => cleanupYTextFormatting,
    compareIDs: () => compareIDs,
    compareRelativePositions: () => compareRelativePositions,
    convertUpdateFormatV1ToV2: () => convertUpdateFormatV1ToV2,
    convertUpdateFormatV2ToV1: () => convertUpdateFormatV2ToV1,
    createAbsolutePositionFromRelativePosition: () => createAbsolutePositionFromRelativePosition,
    createDeleteSet: () => createDeleteSet,
    createDeleteSetFromStructStore: () => createDeleteSetFromStructStore,
    createDocFromSnapshot: () => createDocFromSnapshot,
    createID: () => createID,
    createRelativePositionFromJSON: () => createRelativePositionFromJSON,
    createRelativePositionFromTypeIndex: () => createRelativePositionFromTypeIndex,
    createSnapshot: () => createSnapshot,
    decodeRelativePosition: () => decodeRelativePosition,
    decodeSnapshot: () => decodeSnapshot,
    decodeSnapshotV2: () => decodeSnapshotV2,
    decodeStateVector: () => decodeStateVector,
    decodeUpdate: () => decodeUpdate,
    decodeUpdateV2: () => decodeUpdateV2,
    diffUpdate: () => diffUpdate,
    diffUpdateV2: () => diffUpdateV2,
    emptySnapshot: () => emptySnapshot,
    encodeRelativePosition: () => encodeRelativePosition,
    encodeSnapshot: () => encodeSnapshot,
    encodeSnapshotV2: () => encodeSnapshotV2,
    encodeStateAsUpdate: () => encodeStateAsUpdate,
    encodeStateAsUpdateV2: () => encodeStateAsUpdateV2,
    encodeStateVector: () => encodeStateVector,
    encodeStateVectorFromUpdate: () => encodeStateVectorFromUpdate,
    encodeStateVectorFromUpdateV2: () => encodeStateVectorFromUpdateV2,
    equalDeleteSets: () => equalDeleteSets,
    equalSnapshots: () => equalSnapshots,
    findIndexSS: () => findIndexSS,
    findRootTypeKey: () => findRootTypeKey,
    getItem: () => getItem,
    getItemCleanEnd: () => getItemCleanEnd,
    getItemCleanStart: () => getItemCleanStart,
    getState: () => getState,
    getTypeChildren: () => getTypeChildren,
    isDeleted: () => isDeleted,
    isParentOf: () => isParentOf,
    iterateDeletedStructs: () => iterateDeletedStructs,
    logType: () => logType,
    logUpdate: () => logUpdate,
    logUpdateV2: () => logUpdateV2,
    mergeDeleteSets: () => mergeDeleteSets,
    mergeUpdates: () => mergeUpdates,
    mergeUpdatesV2: () => mergeUpdatesV2,
    obfuscateUpdate: () => obfuscateUpdate,
    obfuscateUpdateV2: () => obfuscateUpdateV2,
    parseUpdateMeta: () => parseUpdateMeta,
    parseUpdateMetaV2: () => parseUpdateMetaV2,
    readUpdate: () => readUpdate,
    readUpdateV2: () => readUpdateV2,
    relativePositionToJSON: () => relativePositionToJSON,
    snapshot: () => snapshot,
    snapshotContainsUpdate: () => snapshotContainsUpdate,
    transact: () => transact,
    tryGc: () => tryGc,
    typeListToArraySnapshot: () => typeListToArraySnapshot,
    typeMapGetAllSnapshot: () => typeMapGetAllSnapshot,
    typeMapGetSnapshot: () => typeMapGetSnapshot
  });

// node_modules/lib0/map.js
  var create = () => /* @__PURE__ */ new Map();
  var copy = (m) => {
    const r = create();
    m.forEach((v, k) => {
      r.set(k, v);
    });
    return r;
  };
  var setIfUndefined = (map2, key, createT) => {
    let set = map2.get(key);
    if (set === void 0) {
      map2.set(key, set = createT());
    }
    return set;
  };
  var map = (m, f) => {
    const res = [];
    for (const [key, value] of m) {
      res.push(f(value, key));
    }
    return res;
  };
  var any = (m, f) => {
    for (const [key, value] of m) {
      if (f(value, key)) {
        return true;
      }
    }
    return false;
  };

// node_modules/lib0/set.js
  var create2 = () => /* @__PURE__ */ new Set();

// node_modules/lib0/array.js
  var last = (arr) => arr[arr.length - 1];
  var appendTo = (dest, src) => {
    for (let i = 0; i < src.length; i++) {
      dest.push(src[i]);
    }
  };
  var from = Array.from;
  var some = (arr, f) => {
    for (let i = 0; i < arr.length; i++) {
      if (f(arr[i], i, arr)) {
        return true;
      }
    }
    return false;
  };
  var unfold = (len, f) => {
    const array = new Array(len);
    for (let i = 0; i < len; i++) {
      array[i] = f(i, array);
    }
    return array;
  };
  var isArray = Array.isArray;

// node_modules/lib0/observable.js
  var ObservableV2 = class {
    constructor() {
      this._observers = create();
    }
    /**
     * @template {keyof EVENTS & string} NAME
     * @param {NAME} name
     * @param {EVENTS[NAME]} f
     */
    on(name, f) {
      setIfUndefined(
        this._observers,
        /** @type {string} */
        name,
        create2
      ).add(f);
      return f;
    }
    /**
     * @template {keyof EVENTS & string} NAME
     * @param {NAME} name
     * @param {EVENTS[NAME]} f
     */
    once(name, f) {
      const _f = (...args2) => {
        this.off(
          name,
          /** @type {any} */
          _f
        );
        f(...args2);
      };
      this.on(
        name,
        /** @type {any} */
        _f
      );
    }
    /**
     * @template {keyof EVENTS & string} NAME
     * @param {NAME} name
     * @param {EVENTS[NAME]} f
     */
    off(name, f) {
      const observers = this._observers.get(name);
      if (observers !== void 0) {
        observers.delete(f);
        if (observers.size === 0) {
          this._observers.delete(name);
        }
      }
    }
    /**
     * Emit a named event. All registered event listeners that listen to the
     * specified name will receive the event.
     *
     * @todo This should catch exceptions
     *
     * @template {keyof EVENTS & string} NAME
     * @param {NAME} name The event name.
     * @param {Parameters<EVENTS[NAME]>} args The arguments that are applied to the event listener.
     */
    emit(name, args2) {
      return from((this._observers.get(name) || create()).values()).forEach((f) => f(...args2));
    }
    destroy() {
      this._observers = create();
    }
  };
  var Observable = class {
    constructor() {
      this._observers = create();
    }
    /**
     * @param {N} name
     * @param {function} f
     */
    on(name, f) {
      setIfUndefined(this._observers, name, create2).add(f);
    }
    /**
     * @param {N} name
     * @param {function} f
     */
    once(name, f) {
      const _f = (...args2) => {
        this.off(name, _f);
        f(...args2);
      };
      this.on(name, _f);
    }
    /**
     * @param {N} name
     * @param {function} f
     */
    off(name, f) {
      const observers = this._observers.get(name);
      if (observers !== void 0) {
        observers.delete(f);
        if (observers.size === 0) {
          this._observers.delete(name);
        }
      }
    }
    /**
     * Emit a named event. All registered event listeners that listen to the
     * specified name will receive the event.
     *
     * @todo This should catch exceptions
     *
     * @param {N} name The event name.
     * @param {Array<any>} args The arguments that are applied to the event listener.
     */
    emit(name, args2) {
      return from((this._observers.get(name) || create()).values()).forEach((f) => f(...args2));
    }
    destroy() {
      this._observers = create();
    }
  };

// node_modules/lib0/math.js
  var floor = Math.floor;
  var abs = Math.abs;
  var min = (a, b) => a < b ? a : b;
  var max = (a, b) => a > b ? a : b;
  var isNaN2 = Number.isNaN;
  var isNegativeZero = (n) => n !== 0 ? n < 0 : 1 / n < 0;

// node_modules/lib0/binary.js
  var BIT1 = 1;
  var BIT2 = 2;
  var BIT3 = 4;
  var BIT4 = 8;
  var BIT6 = 32;
  var BIT7 = 64;
  var BIT8 = 128;
  var BIT18 = 1 << 17;
  var BIT19 = 1 << 18;
  var BIT20 = 1 << 19;
  var BIT21 = 1 << 20;
  var BIT22 = 1 << 21;
  var BIT23 = 1 << 22;
  var BIT24 = 1 << 23;
  var BIT25 = 1 << 24;
  var BIT26 = 1 << 25;
  var BIT27 = 1 << 26;
  var BIT28 = 1 << 27;
  var BIT29 = 1 << 28;
  var BIT30 = 1 << 29;
  var BIT31 = 1 << 30;
  var BIT32 = 1 << 31;
  var BITS5 = 31;
  var BITS6 = 63;
  var BITS7 = 127;
  var BITS17 = BIT18 - 1;
  var BITS18 = BIT19 - 1;
  var BITS19 = BIT20 - 1;
  var BITS20 = BIT21 - 1;
  var BITS21 = BIT22 - 1;
  var BITS22 = BIT23 - 1;
  var BITS23 = BIT24 - 1;
  var BITS24 = BIT25 - 1;
  var BITS25 = BIT26 - 1;
  var BITS26 = BIT27 - 1;
  var BITS27 = BIT28 - 1;
  var BITS28 = BIT29 - 1;
  var BITS29 = BIT30 - 1;
  var BITS30 = BIT31 - 1;
  var BITS31 = 2147483647;

// node_modules/lib0/number.js
  var MAX_SAFE_INTEGER = Number.MAX_SAFE_INTEGER;
  var MIN_SAFE_INTEGER = Number.MIN_SAFE_INTEGER;
  var LOWEST_INT32 = 1 << 31;
  var isInteger = Number.isInteger || ((num) => typeof num === "number" && isFinite(num) && floor(num) === num);
  var isNaN3 = Number.isNaN;
  var parseInt2 = Number.parseInt;

// node_modules/lib0/string.js
  var fromCharCode = String.fromCharCode;
  var fromCodePoint = String.fromCodePoint;
  var MAX_UTF16_CHARACTER = fromCharCode(65535);
  var toLowerCase = (s) => s.toLowerCase();
  var trimLeftRegex = /^\s*/g;
  var trimLeft = (s) => s.replace(trimLeftRegex, "");
  var fromCamelCaseRegex = /([A-Z])/g;
  var fromCamelCase = (s, separator) => trimLeft(s.replace(fromCamelCaseRegex, (match) => `${separator}${toLowerCase(match)}`));
  var _encodeUtf8Polyfill = (str) => {
    const encodedString = unescape(encodeURIComponent(str));
    const len = encodedString.length;
    const buf = new Uint8Array(len);
    for (let i = 0; i < len; i++) {
      buf[i] = /** @type {number} */
      encodedString.codePointAt(i);
    }
    return buf;
  };
  var utf8TextEncoder = (
    /** @type {TextEncoder} */
    typeof TextEncoder !== "undefined" ? new TextEncoder() : null
  );
  var _encodeUtf8Native = (str) => utf8TextEncoder.encode(str);
  var encodeUtf8 = utf8TextEncoder ? _encodeUtf8Native : _encodeUtf8Polyfill;
  var utf8TextDecoder = typeof TextDecoder === "undefined" ? null : new TextDecoder("utf-8", { fatal: true, ignoreBOM: true });
  if (utf8TextDecoder && utf8TextDecoder.decode(new Uint8Array()).length === 1) {
    utf8TextDecoder = null;
  }
  var repeat = (source, n) => unfold(n, () => source).join("");

// node_modules/lib0/encoding.js
  var Encoder = class {
    constructor() {
      this.cpos = 0;
      this.cbuf = new Uint8Array(100);
      this.bufs = [];
    }
  };
  var createEncoder = () => new Encoder();
  var length = (encoder) => {
    let len = encoder.cpos;
    for (let i = 0; i < encoder.bufs.length; i++) {
      len += encoder.bufs[i].length;
    }
    return len;
  };
  var toUint8Array = (encoder) => {
    const uint8arr = new Uint8Array(length(encoder));
    let curPos = 0;
    for (let i = 0; i < encoder.bufs.length; i++) {
      const d = encoder.bufs[i];
      uint8arr.set(d, curPos);
      curPos += d.length;
    }
    uint8arr.set(new Uint8Array(encoder.cbuf.buffer, 0, encoder.cpos), curPos);
    return uint8arr;
  };
  var verifyLen = (encoder, len) => {
    const bufferLen = encoder.cbuf.length;
    if (bufferLen - encoder.cpos < len) {
      encoder.bufs.push(new Uint8Array(encoder.cbuf.buffer, 0, encoder.cpos));
      encoder.cbuf = new Uint8Array(max(bufferLen, len) * 2);
      encoder.cpos = 0;
    }
  };
  var write = (encoder, num) => {
    const bufferLen = encoder.cbuf.length;
    if (encoder.cpos === bufferLen) {
      encoder.bufs.push(encoder.cbuf);
      encoder.cbuf = new Uint8Array(bufferLen * 2);
      encoder.cpos = 0;
    }
    encoder.cbuf[encoder.cpos++] = num;
  };
  var writeUint8 = write;
  var writeVarUint = (encoder, num) => {
    while (num > BITS7) {
      write(encoder, BIT8 | BITS7 & num);
      num = floor(num / 128);
    }
    write(encoder, BITS7 & num);
  };
  var writeVarInt = (encoder, num) => {
    const isNegative = isNegativeZero(num);
    if (isNegative) {
      num = -num;
    }
    write(encoder, (num > BITS6 ? BIT8 : 0) | (isNegative ? BIT7 : 0) | BITS6 & num);
    num = floor(num / 64);
    while (num > 0) {
      write(encoder, (num > BITS7 ? BIT8 : 0) | BITS7 & num);
      num = floor(num / 128);
    }
  };
  var _strBuffer = new Uint8Array(3e4);
  var _maxStrBSize = _strBuffer.length / 3;
  var _writeVarStringNative = (encoder, str) => {
    if (str.length < _maxStrBSize) {
      const written = utf8TextEncoder.encodeInto(str, _strBuffer).written || 0;
      writeVarUint(encoder, written);
      for (let i = 0; i < written; i++) {
        write(encoder, _strBuffer[i]);
      }
    } else {
      writeVarUint8Array(encoder, encodeUtf8(str));
    }
  };
  var _writeVarStringPolyfill = (encoder, str) => {
    const encodedString = unescape(encodeURIComponent(str));
    const len = encodedString.length;
    writeVarUint(encoder, len);
    for (let i = 0; i < len; i++) {
      write(
        encoder,
        /** @type {number} */
        encodedString.codePointAt(i)
      );
    }
  };
  var writeVarString = utf8TextEncoder && /** @type {any} */
  utf8TextEncoder.encodeInto ? _writeVarStringNative : _writeVarStringPolyfill;
  var writeBinaryEncoder = (encoder, append2) => writeUint8Array(encoder, toUint8Array(append2));
  var writeUint8Array = (encoder, uint8Array) => {
    const bufferLen = encoder.cbuf.length;
    const cpos = encoder.cpos;
    const leftCopyLen = min(bufferLen - cpos, uint8Array.length);
    const rightCopyLen = uint8Array.length - leftCopyLen;
    encoder.cbuf.set(uint8Array.subarray(0, leftCopyLen), cpos);
    encoder.cpos += leftCopyLen;
    if (rightCopyLen > 0) {
      encoder.bufs.push(encoder.cbuf);
      encoder.cbuf = new Uint8Array(max(bufferLen * 2, rightCopyLen));
      encoder.cbuf.set(uint8Array.subarray(leftCopyLen));
      encoder.cpos = rightCopyLen;
    }
  };
  var writeVarUint8Array = (encoder, uint8Array) => {
    writeVarUint(encoder, uint8Array.byteLength);
    writeUint8Array(encoder, uint8Array);
  };
  var writeOnDataView = (encoder, len) => {
    verifyLen(encoder, len);
    const dview = new DataView(encoder.cbuf.buffer, encoder.cpos, len);
    encoder.cpos += len;
    return dview;
  };
  var writeFloat32 = (encoder, num) => writeOnDataView(encoder, 4).setFloat32(0, num, false);
  var writeFloat64 = (encoder, num) => writeOnDataView(encoder, 8).setFloat64(0, num, false);
  var writeBigInt64 = (encoder, num) => (
    /** @type {any} */
    writeOnDataView(encoder, 8).setBigInt64(0, num, false)
  );
  var floatTestBed = new DataView(new ArrayBuffer(4));
  var isFloat32 = (num) => {
    floatTestBed.setFloat32(0, num);
    return floatTestBed.getFloat32(0) === num;
  };
  var writeAny = (encoder, data) => {
    switch (typeof data) {
      case "string":
        write(encoder, 119);
        writeVarString(encoder, data);
        break;
      case "number":
        if (isInteger(data) && abs(data) <= BITS31) {
          write(encoder, 125);
          writeVarInt(encoder, data);
        } else if (isFloat32(data)) {
          write(encoder, 124);
          writeFloat32(encoder, data);
        } else {
          write(encoder, 123);
          writeFloat64(encoder, data);
        }
        break;
      case "bigint":
        write(encoder, 122);
        writeBigInt64(encoder, data);
        break;
      case "object":
        if (data === null) {
          write(encoder, 126);
        } else if (isArray(data)) {
          write(encoder, 117);
          writeVarUint(encoder, data.length);
          for (let i = 0; i < data.length; i++) {
            writeAny(encoder, data[i]);
          }
        } else if (data instanceof Uint8Array) {
          write(encoder, 116);
          writeVarUint8Array(encoder, data);
        } else {
          write(encoder, 118);
          const keys2 = Object.keys(data);
          writeVarUint(encoder, keys2.length);
          for (let i = 0; i < keys2.length; i++) {
            const key = keys2[i];
            writeVarString(encoder, key);
            writeAny(encoder, data[key]);
          }
        }
        break;
      case "boolean":
        write(encoder, data ? 120 : 121);
        break;
      default:
        write(encoder, 127);
    }
  };
  var RleEncoder = class extends Encoder {
    /**
     * @param {function(Encoder, T):void} writer
     */
    constructor(writer) {
      super();
      this.w = writer;
      this.s = null;
      this.count = 0;
    }
    /**
     * @param {T} v
     */
    write(v) {
      if (this.s === v) {
        this.count++;
      } else {
        if (this.count > 0) {
          writeVarUint(this, this.count - 1);
        }
        this.count = 1;
        this.w(this, v);
        this.s = v;
      }
    }
  };
  var flushUintOptRleEncoder = (encoder) => {
    if (encoder.count > 0) {
      writeVarInt(encoder.encoder, encoder.count === 1 ? encoder.s : -encoder.s);
      if (encoder.count > 1) {
        writeVarUint(encoder.encoder, encoder.count - 2);
      }
    }
  };
  var UintOptRleEncoder = class {
    constructor() {
      this.encoder = new Encoder();
      this.s = 0;
      this.count = 0;
    }
    /**
     * @param {number} v
     */
    write(v) {
      if (this.s === v) {
        this.count++;
      } else {
        flushUintOptRleEncoder(this);
        this.count = 1;
        this.s = v;
      }
    }
    /**
     * Flush the encoded state and transform this to a Uint8Array.
     *
     * Note that this should only be called once.
     */
    toUint8Array() {
      flushUintOptRleEncoder(this);
      return toUint8Array(this.encoder);
    }
  };
  var flushIntDiffOptRleEncoder = (encoder) => {
    if (encoder.count > 0) {
      const encodedDiff = encoder.diff * 2 + (encoder.count === 1 ? 0 : 1);
      writeVarInt(encoder.encoder, encodedDiff);
      if (encoder.count > 1) {
        writeVarUint(encoder.encoder, encoder.count - 2);
      }
    }
  };
  var IntDiffOptRleEncoder = class {
    constructor() {
      this.encoder = new Encoder();
      this.s = 0;
      this.count = 0;
      this.diff = 0;
    }
    /**
     * @param {number} v
     */
    write(v) {
      if (this.diff === v - this.s) {
        this.s = v;
        this.count++;
      } else {
        flushIntDiffOptRleEncoder(this);
        this.count = 1;
        this.diff = v - this.s;
        this.s = v;
      }
    }
    /**
     * Flush the encoded state and transform this to a Uint8Array.
     *
     * Note that this should only be called once.
     */
    toUint8Array() {
      flushIntDiffOptRleEncoder(this);
      return toUint8Array(this.encoder);
    }
  };
  var StringEncoder = class {
    constructor() {
      this.sarr = [];
      this.s = "";
      this.lensE = new UintOptRleEncoder();
    }
    /**
     * @param {string} string
     */
    write(string) {
      this.s += string;
      if (this.s.length > 19) {
        this.sarr.push(this.s);
        this.s = "";
      }
      this.lensE.write(string.length);
    }
    toUint8Array() {
      const encoder = new Encoder();
      this.sarr.push(this.s);
      this.s = "";
      writeVarString(encoder, this.sarr.join(""));
      writeUint8Array(encoder, this.lensE.toUint8Array());
      return toUint8Array(encoder);
    }
  };

// node_modules/lib0/error.js
  var create3 = (s) => new Error(s);
  var methodUnimplemented = () => {
    throw create3("Method unimplemented");
  };
  var unexpectedCase = () => {
    throw create3("Unexpected case");
  };

// node_modules/lib0/decoding.js
  var errorUnexpectedEndOfArray = create3("Unexpected end of array");
  var errorIntegerOutOfRange = create3("Integer out of Range");
  var Decoder = class {
    /**
     * @param {Uint8Array} uint8Array Binary data to decode
     */
    constructor(uint8Array) {
      this.arr = uint8Array;
      this.pos = 0;
    }
  };
  var createDecoder = (uint8Array) => new Decoder(uint8Array);
  var hasContent = (decoder) => decoder.pos !== decoder.arr.length;
  var readUint8Array = (decoder, len) => {
    const view = new Uint8Array(decoder.arr.buffer, decoder.pos + decoder.arr.byteOffset, len);
    decoder.pos += len;
    return view;
  };
  var readVarUint8Array = (decoder) => readUint8Array(decoder, readVarUint(decoder));
  var readUint8 = (decoder) => decoder.arr[decoder.pos++];
  var readVarUint = (decoder) => {
    let num = 0;
    let mult = 1;
    const len = decoder.arr.length;
    while (decoder.pos < len) {
      const r = decoder.arr[decoder.pos++];
      num = num + (r & BITS7) * mult;
      mult *= 128;
      if (r < BIT8) {
        return num;
      }
      if (num > MAX_SAFE_INTEGER) {
        throw errorIntegerOutOfRange;
      }
    }
    throw errorUnexpectedEndOfArray;
  };
  var readVarInt = (decoder) => {
    let r = decoder.arr[decoder.pos++];
    let num = r & BITS6;
    let mult = 64;
    const sign = (r & BIT7) > 0 ? -1 : 1;
    if ((r & BIT8) === 0) {
      return sign * num;
    }
    const len = decoder.arr.length;
    while (decoder.pos < len) {
      r = decoder.arr[decoder.pos++];
      num = num + (r & BITS7) * mult;
      mult *= 128;
      if (r < BIT8) {
        return sign * num;
      }
      if (num > MAX_SAFE_INTEGER) {
        throw errorIntegerOutOfRange;
      }
    }
    throw errorUnexpectedEndOfArray;
  };
  var _readVarStringPolyfill = (decoder) => {
    let remainingLen = readVarUint(decoder);
    if (remainingLen === 0) {
      return "";
    } else {
      let encodedString = String.fromCodePoint(readUint8(decoder));
      if (--remainingLen < 100) {
        while (remainingLen--) {
          encodedString += String.fromCodePoint(readUint8(decoder));
        }
      } else {
        while (remainingLen > 0) {
          const nextLen = remainingLen < 1e4 ? remainingLen : 1e4;
          const bytes = decoder.arr.subarray(decoder.pos, decoder.pos + nextLen);
          decoder.pos += nextLen;
          encodedString += String.fromCodePoint.apply(
            null,
            /** @type {any} */
            bytes
          );
          remainingLen -= nextLen;
        }
      }
      return decodeURIComponent(escape(encodedString));
    }
  };
  var _readVarStringNative = (decoder) => (
    /** @type any */
    utf8TextDecoder.decode(readVarUint8Array(decoder))
  );
  var readVarString = utf8TextDecoder ? _readVarStringNative : _readVarStringPolyfill;
  var readFromDataView = (decoder, len) => {
    const dv = new DataView(decoder.arr.buffer, decoder.arr.byteOffset + decoder.pos, len);
    decoder.pos += len;
    return dv;
  };
  var readFloat32 = (decoder) => readFromDataView(decoder, 4).getFloat32(0, false);
  var readFloat64 = (decoder) => readFromDataView(decoder, 8).getFloat64(0, false);
  var readBigInt64 = (decoder) => (
    /** @type {any} */
    readFromDataView(decoder, 8).getBigInt64(0, false)
  );
  var readAnyLookupTable = [
    (decoder) => void 0,
    // CASE 127: undefined
    (decoder) => null,
    // CASE 126: null
    readVarInt,
    // CASE 125: integer
    readFloat32,
    // CASE 124: float32
    readFloat64,
    // CASE 123: float64
    readBigInt64,
    // CASE 122: bigint
    (decoder) => false,
    // CASE 121: boolean (false)
    (decoder) => true,
    // CASE 120: boolean (true)
    readVarString,
    // CASE 119: string
    (decoder) => {
      const len = readVarUint(decoder);
      const obj = {};
      for (let i = 0; i < len; i++) {
        const key = readVarString(decoder);
        obj[key] = readAny(decoder);
      }
      return obj;
    },
    (decoder) => {
      const len = readVarUint(decoder);
      const arr = [];
      for (let i = 0; i < len; i++) {
        arr.push(readAny(decoder));
      }
      return arr;
    },
    readVarUint8Array
    // CASE 116: Uint8Array
  ];
  var readAny = (decoder) => readAnyLookupTable[127 - readUint8(decoder)](decoder);
  var RleDecoder = class extends Decoder {
    /**
     * @param {Uint8Array} uint8Array
     * @param {function(Decoder):T} reader
     */
    constructor(uint8Array, reader) {
      super(uint8Array);
      this.reader = reader;
      this.s = null;
      this.count = 0;
    }
    read() {
      if (this.count === 0) {
        this.s = this.reader(this);
        if (hasContent(this)) {
          this.count = readVarUint(this) + 1;
        } else {
          this.count = -1;
        }
      }
      this.count--;
      return (
        /** @type {T} */
        this.s
      );
    }
  };
  var UintOptRleDecoder = class extends Decoder {
    /**
     * @param {Uint8Array} uint8Array
     */
    constructor(uint8Array) {
      super(uint8Array);
      this.s = 0;
      this.count = 0;
    }
    read() {
      if (this.count === 0) {
        this.s = readVarInt(this);
        const isNegative = isNegativeZero(this.s);
        this.count = 1;
        if (isNegative) {
          this.s = -this.s;
          this.count = readVarUint(this) + 2;
        }
      }
      this.count--;
      return (
        /** @type {number} */
        this.s
      );
    }
  };
  var IntDiffOptRleDecoder = class extends Decoder {
    /**
     * @param {Uint8Array} uint8Array
     */
    constructor(uint8Array) {
      super(uint8Array);
      this.s = 0;
      this.count = 0;
      this.diff = 0;
    }
    /**
     * @return {number}
     */
    read() {
      if (this.count === 0) {
        const diff = readVarInt(this);
        const hasCount = diff & 1;
        this.diff = floor(diff / 2);
        this.count = 1;
        if (hasCount) {
          this.count = readVarUint(this) + 2;
        }
      }
      this.s += this.diff;
      this.count--;
      return this.s;
    }
  };
  var StringDecoder = class {
    /**
     * @param {Uint8Array} uint8Array
     */
    constructor(uint8Array) {
      this.decoder = new UintOptRleDecoder(uint8Array);
      this.str = readVarString(this.decoder);
      this.spos = 0;
    }
    /**
     * @return {string}
     */
    read() {
      const end = this.spos + this.decoder.read();
      const res = this.str.slice(this.spos, end);
      this.spos = end;
      return res;
    }
  };

// node_modules/lib0/webcrypto.js
  var subtle = crypto.subtle;
  var getRandomValues = crypto.getRandomValues.bind(crypto);

// node_modules/lib0/random.js
  var uint32 = () => getRandomValues(new Uint32Array(1))[0];
  var uuidv4Template = "10000000-1000-4000-8000" + -1e11;
  var uuidv4 = () => uuidv4Template.replace(
    /[018]/g,
    /** @param {number} c */
    (c) => (c ^ uint32() & 15 >> c / 4).toString(16)
  );

// node_modules/lib0/time.js
  var getUnixTime = Date.now;

// node_modules/lib0/promise.js
  var create4 = (f) => (
    /** @type {Promise<T>} */
    new Promise(f)
  );
  var all = Promise.all.bind(Promise);

// node_modules/lib0/conditions.js
  var undefinedToNull = (v) => v === void 0 ? null : v;

// node_modules/lib0/storage.js
  var VarStoragePolyfill = class {
    constructor() {
      this.map = /* @__PURE__ */ new Map();
    }
    /**
     * @param {string} key
     * @param {any} newValue
     */
    setItem(key, newValue) {
      this.map.set(key, newValue);
    }
    /**
     * @param {string} key
     */
    getItem(key) {
      return this.map.get(key);
    }
  };
  var _localStorage = new VarStoragePolyfill();
  var usePolyfill = true;
  try {
    if (typeof localStorage !== "undefined" && localStorage) {
      _localStorage = localStorage;
      usePolyfill = false;
    }
  } catch (e) {
  }
  var varStorage = _localStorage;

// node_modules/lib0/object.js
  var assign = Object.assign;
  var keys = Object.keys;
  var forEach = (obj, f) => {
    for (const key in obj) {
      f(obj[key], key);
    }
  };
  var length2 = (obj) => keys(obj).length;
  var size = (obj) => keys(obj).length;
  var isEmpty = (obj) => {
    for (const _k in obj) {
      return false;
    }
    return true;
  };
  var every = (obj, f) => {
    for (const key in obj) {
      if (!f(obj[key], key)) {
        return false;
      }
    }
    return true;
  };
  var hasProperty = (obj, key) => Object.prototype.hasOwnProperty.call(obj, key);
  var equalFlat = (a, b) => a === b || size(a) === size(b) && every(a, (val, key) => (val !== void 0 || hasProperty(b, key)) && b[key] === val);
  var freeze = Object.freeze;
  var deepFreeze = (o) => {
    for (const key in o) {
      const c = o[key];
      if (typeof c === "object" || typeof c === "function") {
        deepFreeze(o[key]);
      }
    }
    return freeze(o);
  };

// node_modules/lib0/function.js
  var callAll = (fs, args2, i = 0) => {
    try {
      for (; i < fs.length; i++) {
        fs[i](...args2);
      }
    } finally {
      if (i < fs.length) {
        callAll(fs, args2, i + 1);
      }
    }
  };
  var id = (a) => a;
  var equalityStrict = (a, b) => a === b;
  var equalityDeep = (a, b) => {
    if (a == null || b == null) {
      return equalityStrict(a, b);
    }
    if (a.constructor !== b.constructor) {
      return false;
    }
    if (a === b) {
      return true;
    }
    switch (a.constructor) {
      case ArrayBuffer:
        a = new Uint8Array(a);
        b = new Uint8Array(b);
      // eslint-disable-next-line no-fallthrough
      case Uint8Array: {
        if (a.byteLength !== b.byteLength) {
          return false;
        }
        for (let i = 0; i < a.length; i++) {
          if (a[i] !== b[i]) {
            return false;
          }
        }
        break;
      }
      case Set: {
        if (a.size !== b.size) {
          return false;
        }
        for (const value of a) {
          if (!b.has(value)) {
            return false;
          }
        }
        break;
      }
      case Map: {
        if (a.size !== b.size) {
          return false;
        }
        for (const key of a.keys()) {
          if (!b.has(key) || !equalityDeep(a.get(key), b.get(key))) {
            return false;
          }
        }
        break;
      }
      case Object:
        if (length2(a) !== length2(b)) {
          return false;
        }
        for (const key in a) {
          if (!hasProperty(a, key) || !equalityDeep(a[key], b[key])) {
            return false;
          }
        }
        break;
      case Array:
        if (a.length !== b.length) {
          return false;
        }
        for (let i = 0; i < a.length; i++) {
          if (!equalityDeep(a[i], b[i])) {
            return false;
          }
        }
        break;
      default:
        return false;
    }
    return true;
  };
  var isOneOf = (value, options) => options.includes(value);

// node_modules/lib0/environment.js
  var isNode = typeof process !== "undefined" && process.release && /node|io\.js/.test(process.release.name) && Object.prototype.toString.call(typeof process !== "undefined" ? process : 0) === "[object process]";
  var isBrowser = typeof window !== "undefined" && typeof document !== "undefined" && !isNode;
  var isMac = typeof navigator !== "undefined" ? /Mac/.test(navigator.platform) : false;
  var params;
  var args = [];
  var computeParams = () => {
    if (params === void 0) {
      if (isNode) {
        params = create();
        const pargs = process.argv;
        let currParamName = null;
        for (let i = 0; i < pargs.length; i++) {
          const parg = pargs[i];
          if (parg[0] === "-") {
            if (currParamName !== null) {
              params.set(currParamName, "");
            }
            currParamName = parg;
          } else {
            if (currParamName !== null) {
              params.set(currParamName, parg);
              currParamName = null;
            } else {
              args.push(parg);
            }
          }
        }
        if (currParamName !== null) {
          params.set(currParamName, "");
        }
      } else if (typeof location === "object") {
        params = create();
        (location.search || "?").slice(1).split("&").forEach((kv) => {
          if (kv.length !== 0) {
            const [key, value] = kv.split("=");
            params.set(`--${fromCamelCase(key, "-")}`, value);
            params.set(`-${fromCamelCase(key, "-")}`, value);
          }
        });
      } else {
        params = create();
      }
    }
    return params;
  };
  var hasParam = (name) => computeParams().has(name);
  var getVariable = (name) => isNode ? undefinedToNull(process.env[name.toUpperCase().replaceAll("-", "_")]) : undefinedToNull(varStorage.getItem(name));
  var hasConf = (name) => hasParam("--" + name) || getVariable(name) !== null;
  var production = hasConf("production");
  var forceColor = isNode && isOneOf(process.env.FORCE_COLOR, ["true", "1", "2"]);
  var supportsColor = forceColor || !hasParam("--no-colors") && // @todo deprecate --no-colors
  !hasConf("no-color") && (!isNode || process.stdout.isTTY) && (!isNode || hasParam("--color") || getVariable("COLORTERM") !== null || (getVariable("TERM") || "").includes("color"));

// node_modules/lib0/buffer.js
  var createUint8ArrayFromLen = (len) => new Uint8Array(len);
  var createUint8ArrayViewFromArrayBuffer = (buffer, byteOffset, length3) => new Uint8Array(buffer, byteOffset, length3);
  var toBase64Browser = (bytes) => {
    let s = "";
    for (let i = 0; i < bytes.byteLength; i++) {
      s += fromCharCode(bytes[i]);
    }
    return btoa(s);
  };
  var toBase64Node = (bytes) => Buffer.from(bytes.buffer, bytes.byteOffset, bytes.byteLength).toString("base64");
  var fromBase64Browser = (s) => {
    const a = atob(s);
    const bytes = createUint8ArrayFromLen(a.length);
    for (let i = 0; i < a.length; i++) {
      bytes[i] = a.charCodeAt(i);
    }
    return bytes;
  };
  var fromBase64Node = (s) => {
    const buf = Buffer.from(s, "base64");
    return createUint8ArrayViewFromArrayBuffer(buf.buffer, buf.byteOffset, buf.byteLength);
  };
  var toBase64 = isBrowser ? toBase64Browser : toBase64Node;
  var fromBase64 = isBrowser ? fromBase64Browser : fromBase64Node;
  var copyUint8Array = (uint8Array) => {
    const newBuf = createUint8ArrayFromLen(uint8Array.byteLength);
    newBuf.set(uint8Array);
    return newBuf;
  };

// node_modules/lib0/pair.js
  var Pair = class {
    /**
     * @param {L} left
     * @param {R} right
     */
    constructor(left, right) {
      this.left = left;
      this.right = right;
    }
  };
  var create5 = (left, right) => new Pair(left, right);

// node_modules/lib0/dom.js
  var doc = (
    /** @type {Document} */
    typeof document !== "undefined" ? document : {}
  );
  var domParser = (
    /** @type {DOMParser} */
    typeof DOMParser !== "undefined" ? new DOMParser() : null
  );
  var mapToStyleString = (m) => map(m, (value, key) => `${key}:${value};`).join("");
  var ELEMENT_NODE = doc.ELEMENT_NODE;
  var TEXT_NODE = doc.TEXT_NODE;
  var CDATA_SECTION_NODE = doc.CDATA_SECTION_NODE;
  var COMMENT_NODE = doc.COMMENT_NODE;
  var DOCUMENT_NODE = doc.DOCUMENT_NODE;
  var DOCUMENT_TYPE_NODE = doc.DOCUMENT_TYPE_NODE;
  var DOCUMENT_FRAGMENT_NODE = doc.DOCUMENT_FRAGMENT_NODE;

// node_modules/lib0/symbol.js
  var create6 = Symbol;

// node_modules/lib0/logging.common.js
  var BOLD = create6();
  var UNBOLD = create6();
  var BLUE = create6();
  var GREY = create6();
  var GREEN = create6();
  var RED = create6();
  var PURPLE = create6();
  var ORANGE = create6();
  var UNCOLOR = create6();
  var computeNoColorLoggingArgs = (args2) => {
    if (args2.length === 1 && args2[0]?.constructor === Function) {
      args2 = /** @type {Array<string|Symbol|Object|number>} */
      /** @type {[function]} */
      args2[0]();
    }
    const strBuilder = [];
    const logArgs = [];
    let i = 0;
    for (; i < args2.length; i++) {
      const arg = args2[i];
      if (arg === void 0) {
        break;
      } else if (arg.constructor === String || arg.constructor === Number) {
        strBuilder.push(arg);
      } else if (arg.constructor === Object) {
        break;
      }
    }
    if (i > 0) {
      logArgs.push(strBuilder.join(""));
    }
    for (; i < args2.length; i++) {
      const arg = args2[i];
      if (!(arg instanceof Symbol)) {
        logArgs.push(arg);
      }
    }
    return logArgs;
  };
  var lastLoggingTime = getUnixTime();

// node_modules/lib0/logging.js
  var _browserStyleMap = {
    [BOLD]: create5("font-weight", "bold"),
    [UNBOLD]: create5("font-weight", "normal"),
    [BLUE]: create5("color", "blue"),
    [GREEN]: create5("color", "green"),
    [GREY]: create5("color", "grey"),
    [RED]: create5("color", "red"),
    [PURPLE]: create5("color", "purple"),
    [ORANGE]: create5("color", "orange"),
    // not well supported in chrome when debugging node with inspector - TODO: deprecate
    [UNCOLOR]: create5("color", "black")
  };
  var computeBrowserLoggingArgs = (args2) => {
    if (args2.length === 1 && args2[0]?.constructor === Function) {
      args2 = /** @type {Array<string|Symbol|Object|number>} */
      /** @type {[function]} */
      args2[0]();
    }
    const strBuilder = [];
    const styles = [];
    const currentStyle = create();
    let logArgs = [];
    let i = 0;
    for (; i < args2.length; i++) {
      const arg = args2[i];
      const style = _browserStyleMap[arg];
      if (style !== void 0) {
        currentStyle.set(style.left, style.right);
      } else {
        if (arg === void 0) {
          break;
        }
        if (arg.constructor === String || arg.constructor === Number) {
          const style2 = mapToStyleString(currentStyle);
          if (i > 0 || style2.length > 0) {
            strBuilder.push("%c" + arg);
            styles.push(style2);
          } else {
            strBuilder.push(arg);
          }
        } else {
          break;
        }
      }
    }
    if (i > 0) {
      logArgs = styles;
      logArgs.unshift(strBuilder.join(""));
    }
    for (; i < args2.length; i++) {
      const arg = args2[i];
      if (!(arg instanceof Symbol)) {
        logArgs.push(arg);
      }
    }
    return logArgs;
  };
  var computeLoggingArgs = supportsColor ? computeBrowserLoggingArgs : computeNoColorLoggingArgs;
  var print = (...args2) => {
    console.log(...computeLoggingArgs(args2));
    vconsoles.forEach((vc) => vc.print(args2));
  };
  var warn = (...args2) => {
    console.warn(...computeLoggingArgs(args2));
    args2.unshift(ORANGE);
    vconsoles.forEach((vc) => vc.print(args2));
  };
  var vconsoles = create2();

// node_modules/lib0/iterator.js
  var createIterator = (next) => ({
    /**
     * @return {IterableIterator<T>}
     */
    [Symbol.iterator]() {
      return this;
    },
    // @ts-ignore
    next
  });
  var iteratorFilter = (iterator, filter) => createIterator(() => {
    let res;
    do {
      res = iterator.next();
    } while (!res.done && !filter(res.value));
    return res;
  });
  var iteratorMap = (iterator, fmap) => createIterator(() => {
    const { done, value } = iterator.next();
    return { done, value: done ? void 0 : fmap(value) };
  });

// node_modules/yjs/dist/yjs.mjs
  var AbstractConnector = class extends ObservableV2 {
    /**
     * @param {Doc} ydoc
     * @param {any} awareness
     */
    constructor(ydoc, awareness) {
      super();
      this.doc = ydoc;
      this.awareness = awareness;
    }
  };
  var DeleteItem = class {
    /**
     * @param {number} clock
     * @param {number} len
     */
    constructor(clock, len) {
      this.clock = clock;
      this.len = len;
    }
  };
  var DeleteSet = class {
    constructor() {
      this.clients = /* @__PURE__ */ new Map();
    }
  };
  var iterateDeletedStructs = (transaction, ds, f) => ds.clients.forEach((deletes, clientid) => {
    const structs = (
      /** @type {Array<GC|Item>} */
      transaction.doc.store.clients.get(clientid)
    );
    if (structs != null) {
      const lastStruct = structs[structs.length - 1];
      const clockState = lastStruct.id.clock + lastStruct.length;
      for (let i = 0, del = deletes[i]; i < deletes.length && del.clock < clockState; del = deletes[++i]) {
        iterateStructs(transaction, structs, del.clock, del.len, f);
      }
    }
  });
  var findIndexDS = (dis, clock) => {
    let left = 0;
    let right = dis.length - 1;
    while (left <= right) {
      const midindex = floor((left + right) / 2);
      const mid = dis[midindex];
      const midclock = mid.clock;
      if (midclock <= clock) {
        if (clock < midclock + mid.len) {
          return midindex;
        }
        left = midindex + 1;
      } else {
        right = midindex - 1;
      }
    }
    return null;
  };
  var isDeleted = (ds, id2) => {
    const dis = ds.clients.get(id2.client);
    return dis !== void 0 && findIndexDS(dis, id2.clock) !== null;
  };
  var sortAndMergeDeleteSet = (ds) => {
    ds.clients.forEach((dels) => {
      dels.sort((a, b) => a.clock - b.clock);
      let i, j;
      for (i = 1, j = 1; i < dels.length; i++) {
        const left = dels[j - 1];
        const right = dels[i];
        if (left.clock + left.len >= right.clock) {
          left.len = max(left.len, right.clock + right.len - left.clock);
        } else {
          if (j < i) {
            dels[j] = right;
          }
          j++;
        }
      }
      dels.length = j;
    });
  };
  var mergeDeleteSets = (dss) => {
    const merged = new DeleteSet();
    for (let dssI = 0; dssI < dss.length; dssI++) {
      dss[dssI].clients.forEach((delsLeft, client) => {
        if (!merged.clients.has(client)) {
          const dels = delsLeft.slice();
          for (let i = dssI + 1; i < dss.length; i++) {
            appendTo(dels, dss[i].clients.get(client) || []);
          }
          merged.clients.set(client, dels);
        }
      });
    }
    sortAndMergeDeleteSet(merged);
    return merged;
  };
  var addToDeleteSet = (ds, client, clock, length3) => {
    setIfUndefined(ds.clients, client, () => (
      /** @type {Array<DeleteItem>} */
      []
    )).push(new DeleteItem(clock, length3));
  };
  var createDeleteSet = () => new DeleteSet();
  var createDeleteSetFromStructStore = (ss) => {
    const ds = createDeleteSet();
    ss.clients.forEach((structs, client) => {
      const dsitems = [];
      for (let i = 0; i < structs.length; i++) {
        const struct = structs[i];
        if (struct.deleted) {
          const clock = struct.id.clock;
          let len = struct.length;
          if (i + 1 < structs.length) {
            for (let next = structs[i + 1]; i + 1 < structs.length && next.deleted; next = structs[++i + 1]) {
              len += next.length;
            }
          }
          dsitems.push(new DeleteItem(clock, len));
        }
      }
      if (dsitems.length > 0) {
        ds.clients.set(client, dsitems);
      }
    });
    return ds;
  };
  var writeDeleteSet = (encoder, ds) => {
    writeVarUint(encoder.restEncoder, ds.clients.size);
    from(ds.clients.entries()).sort((a, b) => b[0] - a[0]).forEach(([client, dsitems]) => {
      encoder.resetDsCurVal();
      writeVarUint(encoder.restEncoder, client);
      const len = dsitems.length;
      writeVarUint(encoder.restEncoder, len);
      for (let i = 0; i < len; i++) {
        const item = dsitems[i];
        encoder.writeDsClock(item.clock);
        encoder.writeDsLen(item.len);
      }
    });
  };
  var readDeleteSet = (decoder) => {
    const ds = new DeleteSet();
    const numClients = readVarUint(decoder.restDecoder);
    for (let i = 0; i < numClients; i++) {
      decoder.resetDsCurVal();
      const client = readVarUint(decoder.restDecoder);
      const numberOfDeletes = readVarUint(decoder.restDecoder);
      if (numberOfDeletes > 0) {
        const dsField = setIfUndefined(ds.clients, client, () => (
          /** @type {Array<DeleteItem>} */
          []
        ));
        for (let i2 = 0; i2 < numberOfDeletes; i2++) {
          dsField.push(new DeleteItem(decoder.readDsClock(), decoder.readDsLen()));
        }
      }
    }
    return ds;
  };
  var readAndApplyDeleteSet = (decoder, transaction, store) => {
    const unappliedDS = new DeleteSet();
    const numClients = readVarUint(decoder.restDecoder);
    for (let i = 0; i < numClients; i++) {
      decoder.resetDsCurVal();
      const client = readVarUint(decoder.restDecoder);
      const numberOfDeletes = readVarUint(decoder.restDecoder);
      const structs = store.clients.get(client) || [];
      const state = getState(store, client);
      for (let i2 = 0; i2 < numberOfDeletes; i2++) {
        const clock = decoder.readDsClock();
        const clockEnd = clock + decoder.readDsLen();
        if (clock < state) {
          if (state < clockEnd) {
            addToDeleteSet(unappliedDS, client, state, clockEnd - state);
          }
          let index = findIndexSS(structs, clock);
          let struct = structs[index];
          if (!struct.deleted && struct.id.clock < clock) {
            structs.splice(index + 1, 0, splitItem(transaction, struct, clock - struct.id.clock));
            index++;
          }
          while (index < structs.length) {
            struct = structs[index++];
            if (struct.id.clock < clockEnd) {
              if (!struct.deleted) {
                if (clockEnd < struct.id.clock + struct.length) {
                  structs.splice(index, 0, splitItem(transaction, struct, clockEnd - struct.id.clock));
                }
                struct.delete(transaction);
              }
            } else {
              break;
            }
          }
        } else {
          addToDeleteSet(unappliedDS, client, clock, clockEnd - clock);
        }
      }
    }
    if (unappliedDS.clients.size > 0) {
      const ds = new UpdateEncoderV2();
      writeVarUint(ds.restEncoder, 0);
      writeDeleteSet(ds, unappliedDS);
      return ds.toUint8Array();
    }
    return null;
  };
  var equalDeleteSets = (ds1, ds2) => {
    if (ds1.clients.size !== ds2.clients.size) return false;
    for (const [client, deleteItems1] of ds1.clients.entries()) {
      const deleteItems2 = (
        /** @type {Array<import('../internals.js').DeleteItem>} */
        ds2.clients.get(client)
      );
      if (deleteItems2 === void 0 || deleteItems1.length !== deleteItems2.length) return false;
      for (let i = 0; i < deleteItems1.length; i++) {
        const di1 = deleteItems1[i];
        const di2 = deleteItems2[i];
        if (di1.clock !== di2.clock || di1.len !== di2.len) {
          return false;
        }
      }
    }
    return true;
  };
  var generateNewClientId = uint32;
  var Doc = class _Doc extends ObservableV2 {
    /**
     * @param {DocOpts} opts configuration
     */
    constructor({ guid = uuidv4(), collectionid = null, gc = true, gcFilter = () => true, meta = null, autoLoad = false, shouldLoad = true } = {}) {
      super();
      this.gc = gc;
      this.gcFilter = gcFilter;
      this.clientID = generateNewClientId();
      this.guid = guid;
      this.collectionid = collectionid;
      this.share = /* @__PURE__ */ new Map();
      this.store = new StructStore();
      this._transaction = null;
      this._transactionCleanups = [];
      this.subdocs = /* @__PURE__ */ new Set();
      this._item = null;
      this.shouldLoad = shouldLoad;
      this.autoLoad = autoLoad;
      this.meta = meta;
      this.isLoaded = false;
      this.isSynced = false;
      this.isDestroyed = false;
      this.whenLoaded = create4((resolve) => {
        this.on("load", () => {
          this.isLoaded = true;
          resolve(this);
        });
      });
      const provideSyncedPromise = () => create4((resolve) => {
        const eventHandler = (isSynced) => {
          if (isSynced === void 0 || isSynced === true) {
            this.off("sync", eventHandler);
            resolve();
          }
        };
        this.on("sync", eventHandler);
      });
      this.on("sync", (isSynced) => {
        if (isSynced === false && this.isSynced) {
          this.whenSynced = provideSyncedPromise();
        }
        this.isSynced = isSynced === void 0 || isSynced === true;
        if (this.isSynced && !this.isLoaded) {
          this.emit("load", [this]);
        }
      });
      this.whenSynced = provideSyncedPromise();
    }
    /**
     * Notify the parent document that you request to load data into this subdocument (if it is a subdocument).
     *
     * `load()` might be used in the future to request any provider to load the most current data.
     *
     * It is safe to call `load()` multiple times.
     */
    load() {
      const item = this._item;
      if (item !== null && !this.shouldLoad) {
        transact(
          /** @type {any} */
          item.parent.doc,
          (transaction) => {
            transaction.subdocsLoaded.add(this);
          },
          null,
          true
        );
      }
      this.shouldLoad = true;
    }
    getSubdocs() {
      return this.subdocs;
    }
    getSubdocGuids() {
      return new Set(from(this.subdocs).map((doc2) => doc2.guid));
    }
    /**
     * Changes that happen inside of a transaction are bundled. This means that
     * the observer fires _after_ the transaction is finished and that all changes
     * that happened inside of the transaction are sent as one message to the
     * other peers.
     *
     * @template T
     * @param {function(Transaction):T} f The function that should be executed as a transaction
     * @param {any} [origin] Origin of who started the transaction. Will be stored on transaction.origin
     * @return T
     *
     * @public
     */
    transact(f, origin2 = null) {
      return transact(this, f, origin2);
    }
    /**
     * Define a shared data type.
     *
     * Multiple calls of `ydoc.get(name, TypeConstructor)` yield the same result
     * and do not overwrite each other. I.e.
     * `ydoc.get(name, Y.Array) === ydoc.get(name, Y.Array)`
     *
     * After this method is called, the type is also available on `ydoc.share.get(name)`.
     *
     * *Best Practices:*
     * Define all types right after the Y.Doc instance is created and store them in a separate object.
     * Also use the typed methods `getText(name)`, `getArray(name)`, ..
     *
     * @template {typeof AbstractType<any>} Type
     * @example
     *   const ydoc = new Y.Doc(..)
     *   const appState = {
     *     document: ydoc.getText('document')
     *     comments: ydoc.getArray('comments')
     *   }
     *
     * @param {string} name
     * @param {Type} TypeConstructor The constructor of the type definition. E.g. Y.Text, Y.Array, Y.Map, ...
     * @return {InstanceType<Type>} The created type. Constructed with TypeConstructor
     *
     * @public
     */
    get(name, TypeConstructor = (
      /** @type {any} */
      AbstractType
    )) {
      const type = setIfUndefined(this.share, name, () => {
        const t = new TypeConstructor();
        t._integrate(this, null);
        return t;
      });
      const Constr = type.constructor;
      if (TypeConstructor !== AbstractType && Constr !== TypeConstructor) {
        if (Constr === AbstractType) {
          const t = new TypeConstructor();
          t._map = type._map;
          type._map.forEach(
            /** @param {Item?} n */
            (n) => {
              for (; n !== null; n = n.left) {
                n.parent = t;
              }
            }
          );
          t._start = type._start;
          for (let n = t._start; n !== null; n = n.right) {
            n.parent = t;
          }
          t._length = type._length;
          this.share.set(name, t);
          t._integrate(this, null);
          return (
            /** @type {InstanceType<Type>} */
            t
          );
        } else {
          throw new Error(`Type with the name ${name} has already been defined with a different constructor`);
        }
      }
      return (
        /** @type {InstanceType<Type>} */
        type
      );
    }
    /**
     * @template T
     * @param {string} [name]
     * @return {YArray<T>}
     *
     * @public
     */
    getArray(name = "") {
      return (
        /** @type {YArray<T>} */
        this.get(name, YArray)
      );
    }
    /**
     * @param {string} [name]
     * @return {YText}
     *
     * @public
     */
    getText(name = "") {
      return this.get(name, YText);
    }
    /**
     * @template T
     * @param {string} [name]
     * @return {YMap<T>}
     *
     * @public
     */
    getMap(name = "") {
      return (
        /** @type {YMap<T>} */
        this.get(name, YMap)
      );
    }
    /**
     * @param {string} [name]
     * @return {YXmlElement}
     *
     * @public
     */
    getXmlElement(name = "") {
      return (
        /** @type {YXmlElement<{[key:string]:string}>} */
        this.get(name, YXmlElement)
      );
    }
    /**
     * @param {string} [name]
     * @return {YXmlFragment}
     *
     * @public
     */
    getXmlFragment(name = "") {
      return this.get(name, YXmlFragment);
    }
    /**
     * Converts the entire document into a js object, recursively traversing each yjs type
     * Doesn't log types that have not been defined (using ydoc.getType(..)).
     *
     * @deprecated Do not use this method and rather call toJSON directly on the shared types.
     *
     * @return {Object<string, any>}
     */
    toJSON() {
      const doc2 = {};
      this.share.forEach((value, key) => {
        doc2[key] = value.toJSON();
      });
      return doc2;
    }
    /**
     * Emit `destroy` event and unregister all event handlers.
     */
    destroy() {
      this.isDestroyed = true;
      from(this.subdocs).forEach((subdoc) => subdoc.destroy());
      const item = this._item;
      if (item !== null) {
        this._item = null;
        const content = (
          /** @type {ContentDoc} */
          item.content
        );
        content.doc = new _Doc({ guid: this.guid, ...content.opts, shouldLoad: false });
        content.doc._item = item;
        transact(
          /** @type {any} */
          item.parent.doc,
          (transaction) => {
            const doc2 = content.doc;
            if (!item.deleted) {
              transaction.subdocsAdded.add(doc2);
            }
            transaction.subdocsRemoved.add(this);
          },
          null,
          true
        );
      }
      this.emit("destroyed", [true]);
      this.emit("destroy", [this]);
      super.destroy();
    }
  };
  var DSDecoderV1 = class {
    /**
     * @param {decoding.Decoder} decoder
     */
    constructor(decoder) {
      this.restDecoder = decoder;
    }
    resetDsCurVal() {
    }
    /**
     * @return {number}
     */
    readDsClock() {
      return readVarUint(this.restDecoder);
    }
    /**
     * @return {number}
     */
    readDsLen() {
      return readVarUint(this.restDecoder);
    }
  };
  var UpdateDecoderV1 = class extends DSDecoderV1 {
    /**
     * @return {ID}
     */
    readLeftID() {
      return createID(readVarUint(this.restDecoder), readVarUint(this.restDecoder));
    }
    /**
     * @return {ID}
     */
    readRightID() {
      return createID(readVarUint(this.restDecoder), readVarUint(this.restDecoder));
    }
    /**
     * Read the next client id.
     * Use this in favor of readID whenever possible to reduce the number of objects created.
     */
    readClient() {
      return readVarUint(this.restDecoder);
    }
    /**
     * @return {number} info An unsigned 8-bit integer
     */
    readInfo() {
      return readUint8(this.restDecoder);
    }
    /**
     * @return {string}
     */
    readString() {
      return readVarString(this.restDecoder);
    }
    /**
     * @return {boolean} isKey
     */
    readParentInfo() {
      return readVarUint(this.restDecoder) === 1;
    }
    /**
     * @return {number} info An unsigned 8-bit integer
     */
    readTypeRef() {
      return readVarUint(this.restDecoder);
    }
    /**
     * Write len of a struct - well suited for Opt RLE encoder.
     *
     * @return {number} len
     */
    readLen() {
      return readVarUint(this.restDecoder);
    }
    /**
     * @return {any}
     */
    readAny() {
      return readAny(this.restDecoder);
    }
    /**
     * @return {Uint8Array}
     */
    readBuf() {
      return copyUint8Array(readVarUint8Array(this.restDecoder));
    }
    /**
     * Legacy implementation uses JSON parse. We use any-decoding in v2.
     *
     * @return {any}
     */
    readJSON() {
      return JSON.parse(readVarString(this.restDecoder));
    }
    /**
     * @return {string}
     */
    readKey() {
      return readVarString(this.restDecoder);
    }
  };
  var DSDecoderV2 = class {
    /**
     * @param {decoding.Decoder} decoder
     */
    constructor(decoder) {
      this.dsCurrVal = 0;
      this.restDecoder = decoder;
    }
    resetDsCurVal() {
      this.dsCurrVal = 0;
    }
    /**
     * @return {number}
     */
    readDsClock() {
      this.dsCurrVal += readVarUint(this.restDecoder);
      return this.dsCurrVal;
    }
    /**
     * @return {number}
     */
    readDsLen() {
      const diff = readVarUint(this.restDecoder) + 1;
      this.dsCurrVal += diff;
      return diff;
    }
  };
  var UpdateDecoderV2 = class extends DSDecoderV2 {
    /**
     * @param {decoding.Decoder} decoder
     */
    constructor(decoder) {
      super(decoder);
      this.keys = [];
      readVarUint(decoder);
      this.keyClockDecoder = new IntDiffOptRleDecoder(readVarUint8Array(decoder));
      this.clientDecoder = new UintOptRleDecoder(readVarUint8Array(decoder));
      this.leftClockDecoder = new IntDiffOptRleDecoder(readVarUint8Array(decoder));
      this.rightClockDecoder = new IntDiffOptRleDecoder(readVarUint8Array(decoder));
      this.infoDecoder = new RleDecoder(readVarUint8Array(decoder), readUint8);
      this.stringDecoder = new StringDecoder(readVarUint8Array(decoder));
      this.parentInfoDecoder = new RleDecoder(readVarUint8Array(decoder), readUint8);
      this.typeRefDecoder = new UintOptRleDecoder(readVarUint8Array(decoder));
      this.lenDecoder = new UintOptRleDecoder(readVarUint8Array(decoder));
    }
    /**
     * @return {ID}
     */
    readLeftID() {
      return new ID(this.clientDecoder.read(), this.leftClockDecoder.read());
    }
    /**
     * @return {ID}
     */
    readRightID() {
      return new ID(this.clientDecoder.read(), this.rightClockDecoder.read());
    }
    /**
     * Read the next client id.
     * Use this in favor of readID whenever possible to reduce the number of objects created.
     */
    readClient() {
      return this.clientDecoder.read();
    }
    /**
     * @return {number} info An unsigned 8-bit integer
     */
    readInfo() {
      return (
        /** @type {number} */
        this.infoDecoder.read()
      );
    }
    /**
     * @return {string}
     */
    readString() {
      return this.stringDecoder.read();
    }
    /**
     * @return {boolean}
     */
    readParentInfo() {
      return this.parentInfoDecoder.read() === 1;
    }
    /**
     * @return {number} An unsigned 8-bit integer
     */
    readTypeRef() {
      return this.typeRefDecoder.read();
    }
    /**
     * Write len of a struct - well suited for Opt RLE encoder.
     *
     * @return {number}
     */
    readLen() {
      return this.lenDecoder.read();
    }
    /**
     * @return {any}
     */
    readAny() {
      return readAny(this.restDecoder);
    }
    /**
     * @return {Uint8Array}
     */
    readBuf() {
      return readVarUint8Array(this.restDecoder);
    }
    /**
     * This is mainly here for legacy purposes.
     *
     * Initial we incoded objects using JSON. Now we use the much faster lib0/any-encoder. This method mainly exists for legacy purposes for the v1 encoder.
     *
     * @return {any}
     */
    readJSON() {
      return readAny(this.restDecoder);
    }
    /**
     * @return {string}
     */
    readKey() {
      const keyClock = this.keyClockDecoder.read();
      if (keyClock < this.keys.length) {
        return this.keys[keyClock];
      } else {
        const key = this.stringDecoder.read();
        this.keys.push(key);
        return key;
      }
    }
  };
  var DSEncoderV1 = class {
    constructor() {
      this.restEncoder = createEncoder();
    }
    toUint8Array() {
      return toUint8Array(this.restEncoder);
    }
    resetDsCurVal() {
    }
    /**
     * @param {number} clock
     */
    writeDsClock(clock) {
      writeVarUint(this.restEncoder, clock);
    }
    /**
     * @param {number} len
     */
    writeDsLen(len) {
      writeVarUint(this.restEncoder, len);
    }
  };
  var UpdateEncoderV1 = class extends DSEncoderV1 {
    /**
     * @param {ID} id
     */
    writeLeftID(id2) {
      writeVarUint(this.restEncoder, id2.client);
      writeVarUint(this.restEncoder, id2.clock);
    }
    /**
     * @param {ID} id
     */
    writeRightID(id2) {
      writeVarUint(this.restEncoder, id2.client);
      writeVarUint(this.restEncoder, id2.clock);
    }
    /**
     * Use writeClient and writeClock instead of writeID if possible.
     * @param {number} client
     */
    writeClient(client) {
      writeVarUint(this.restEncoder, client);
    }
    /**
     * @param {number} info An unsigned 8-bit integer
     */
    writeInfo(info) {
      writeUint8(this.restEncoder, info);
    }
    /**
     * @param {string} s
     */
    writeString(s) {
      writeVarString(this.restEncoder, s);
    }
    /**
     * @param {boolean} isYKey
     */
    writeParentInfo(isYKey) {
      writeVarUint(this.restEncoder, isYKey ? 1 : 0);
    }
    /**
     * @param {number} info An unsigned 8-bit integer
     */
    writeTypeRef(info) {
      writeVarUint(this.restEncoder, info);
    }
    /**
     * Write len of a struct - well suited for Opt RLE encoder.
     *
     * @param {number} len
     */
    writeLen(len) {
      writeVarUint(this.restEncoder, len);
    }
    /**
     * @param {any} any
     */
    writeAny(any2) {
      writeAny(this.restEncoder, any2);
    }
    /**
     * @param {Uint8Array} buf
     */
    writeBuf(buf) {
      writeVarUint8Array(this.restEncoder, buf);
    }
    /**
     * @param {any} embed
     */
    writeJSON(embed) {
      writeVarString(this.restEncoder, JSON.stringify(embed));
    }
    /**
     * @param {string} key
     */
    writeKey(key) {
      writeVarString(this.restEncoder, key);
    }
  };
  var DSEncoderV2 = class {
    constructor() {
      this.restEncoder = createEncoder();
      this.dsCurrVal = 0;
    }
    toUint8Array() {
      return toUint8Array(this.restEncoder);
    }
    resetDsCurVal() {
      this.dsCurrVal = 0;
    }
    /**
     * @param {number} clock
     */
    writeDsClock(clock) {
      const diff = clock - this.dsCurrVal;
      this.dsCurrVal = clock;
      writeVarUint(this.restEncoder, diff);
    }
    /**
     * @param {number} len
     */
    writeDsLen(len) {
      if (len === 0) {
        unexpectedCase();
      }
      writeVarUint(this.restEncoder, len - 1);
      this.dsCurrVal += len;
    }
  };
  var UpdateEncoderV2 = class extends DSEncoderV2 {
    constructor() {
      super();
      this.keyMap = /* @__PURE__ */ new Map();
      this.keyClock = 0;
      this.keyClockEncoder = new IntDiffOptRleEncoder();
      this.clientEncoder = new UintOptRleEncoder();
      this.leftClockEncoder = new IntDiffOptRleEncoder();
      this.rightClockEncoder = new IntDiffOptRleEncoder();
      this.infoEncoder = new RleEncoder(writeUint8);
      this.stringEncoder = new StringEncoder();
      this.parentInfoEncoder = new RleEncoder(writeUint8);
      this.typeRefEncoder = new UintOptRleEncoder();
      this.lenEncoder = new UintOptRleEncoder();
    }
    toUint8Array() {
      const encoder = createEncoder();
      writeVarUint(encoder, 0);
      writeVarUint8Array(encoder, this.keyClockEncoder.toUint8Array());
      writeVarUint8Array(encoder, this.clientEncoder.toUint8Array());
      writeVarUint8Array(encoder, this.leftClockEncoder.toUint8Array());
      writeVarUint8Array(encoder, this.rightClockEncoder.toUint8Array());
      writeVarUint8Array(encoder, toUint8Array(this.infoEncoder));
      writeVarUint8Array(encoder, this.stringEncoder.toUint8Array());
      writeVarUint8Array(encoder, toUint8Array(this.parentInfoEncoder));
      writeVarUint8Array(encoder, this.typeRefEncoder.toUint8Array());
      writeVarUint8Array(encoder, this.lenEncoder.toUint8Array());
      writeUint8Array(encoder, toUint8Array(this.restEncoder));
      return toUint8Array(encoder);
    }
    /**
     * @param {ID} id
     */
    writeLeftID(id2) {
      this.clientEncoder.write(id2.client);
      this.leftClockEncoder.write(id2.clock);
    }
    /**
     * @param {ID} id
     */
    writeRightID(id2) {
      this.clientEncoder.write(id2.client);
      this.rightClockEncoder.write(id2.clock);
    }
    /**
     * @param {number} client
     */
    writeClient(client) {
      this.clientEncoder.write(client);
    }
    /**
     * @param {number} info An unsigned 8-bit integer
     */
    writeInfo(info) {
      this.infoEncoder.write(info);
    }
    /**
     * @param {string} s
     */
    writeString(s) {
      this.stringEncoder.write(s);
    }
    /**
     * @param {boolean} isYKey
     */
    writeParentInfo(isYKey) {
      this.parentInfoEncoder.write(isYKey ? 1 : 0);
    }
    /**
     * @param {number} info An unsigned 8-bit integer
     */
    writeTypeRef(info) {
      this.typeRefEncoder.write(info);
    }
    /**
     * Write len of a struct - well suited for Opt RLE encoder.
     *
     * @param {number} len
     */
    writeLen(len) {
      this.lenEncoder.write(len);
    }
    /**
     * @param {any} any
     */
    writeAny(any2) {
      writeAny(this.restEncoder, any2);
    }
    /**
     * @param {Uint8Array} buf
     */
    writeBuf(buf) {
      writeVarUint8Array(this.restEncoder, buf);
    }
    /**
     * This is mainly here for legacy purposes.
     *
     * Initial we incoded objects using JSON. Now we use the much faster lib0/any-encoder. This method mainly exists for legacy purposes for the v1 encoder.
     *
     * @param {any} embed
     */
    writeJSON(embed) {
      writeAny(this.restEncoder, embed);
    }
    /**
     * Property keys are often reused. For example, in y-prosemirror the key `bold` might
     * occur very often. For a 3d application, the key `position` might occur very often.
     *
     * We cache these keys in a Map and refer to them via a unique number.
     *
     * @param {string} key
     */
    writeKey(key) {
      const clock = this.keyMap.get(key);
      if (clock === void 0) {
        this.keyClockEncoder.write(this.keyClock++);
        this.stringEncoder.write(key);
      } else {
        this.keyClockEncoder.write(clock);
      }
    }
  };
  var writeStructs = (encoder, structs, client, clock) => {
    clock = max(clock, structs[0].id.clock);
    const startNewStructs = findIndexSS(structs, clock);
    writeVarUint(encoder.restEncoder, structs.length - startNewStructs);
    encoder.writeClient(client);
    writeVarUint(encoder.restEncoder, clock);
    const firstStruct = structs[startNewStructs];
    firstStruct.write(encoder, clock - firstStruct.id.clock);
    for (let i = startNewStructs + 1; i < structs.length; i++) {
      structs[i].write(encoder, 0);
    }
  };
  var writeClientsStructs = (encoder, store, _sm) => {
    const sm = /* @__PURE__ */ new Map();
    _sm.forEach((clock, client) => {
      if (getState(store, client) > clock) {
        sm.set(client, clock);
      }
    });
    getStateVector(store).forEach((_clock, client) => {
      if (!_sm.has(client)) {
        sm.set(client, 0);
      }
    });
    writeVarUint(encoder.restEncoder, sm.size);
    from(sm.entries()).sort((a, b) => b[0] - a[0]).forEach(([client, clock]) => {
      writeStructs(
        encoder,
        /** @type {Array<GC|Item>} */
        store.clients.get(client),
        client,
        clock
      );
    });
  };
  var readClientsStructRefs = (decoder, doc2) => {
    const clientRefs = create();
    const numOfStateUpdates = readVarUint(decoder.restDecoder);
    for (let i = 0; i < numOfStateUpdates; i++) {
      const numberOfStructs = readVarUint(decoder.restDecoder);
      const refs = new Array(numberOfStructs);
      const client = decoder.readClient();
      let clock = readVarUint(decoder.restDecoder);
      clientRefs.set(client, { i: 0, refs });
      for (let i2 = 0; i2 < numberOfStructs; i2++) {
        const info = decoder.readInfo();
        switch (BITS5 & info) {
          case 0: {
            const len = decoder.readLen();
            refs[i2] = new GC(createID(client, clock), len);
            clock += len;
            break;
          }
          case 10: {
            const len = readVarUint(decoder.restDecoder);
            refs[i2] = new Skip(createID(client, clock), len);
            clock += len;
            break;
          }
          default: {
            const cantCopyParentInfo = (info & (BIT7 | BIT8)) === 0;
            const struct = new Item(
              createID(client, clock),
              null,
              // left
              (info & BIT8) === BIT8 ? decoder.readLeftID() : null,
              // origin
              null,
              // right
              (info & BIT7) === BIT7 ? decoder.readRightID() : null,
              // right origin
              cantCopyParentInfo ? decoder.readParentInfo() ? doc2.get(decoder.readString()) : decoder.readLeftID() : null,
              // parent
              cantCopyParentInfo && (info & BIT6) === BIT6 ? decoder.readString() : null,
              // parentSub
              readItemContent(decoder, info)
              // item content
            );
            refs[i2] = struct;
            clock += struct.length;
          }
        }
      }
    }
    return clientRefs;
  };
  var integrateStructs = (transaction, store, clientsStructRefs) => {
    const stack = [];
    let clientsStructRefsIds = from(clientsStructRefs.keys()).sort((a, b) => a - b);
    if (clientsStructRefsIds.length === 0) {
      return null;
    }
    const getNextStructTarget = () => {
      if (clientsStructRefsIds.length === 0) {
        return null;
      }
      let nextStructsTarget = (
        /** @type {{i:number,refs:Array<GC|Item>}} */
        clientsStructRefs.get(clientsStructRefsIds[clientsStructRefsIds.length - 1])
      );
      while (nextStructsTarget.refs.length === nextStructsTarget.i) {
        clientsStructRefsIds.pop();
        if (clientsStructRefsIds.length > 0) {
          nextStructsTarget = /** @type {{i:number,refs:Array<GC|Item>}} */
          clientsStructRefs.get(clientsStructRefsIds[clientsStructRefsIds.length - 1]);
        } else {
          return null;
        }
      }
      return nextStructsTarget;
    };
    let curStructsTarget = getNextStructTarget();
    if (curStructsTarget === null) {
      return null;
    }
    const restStructs = new StructStore();
    const missingSV = /* @__PURE__ */ new Map();
    const updateMissingSv = (client, clock) => {
      const mclock = missingSV.get(client);
      if (mclock == null || mclock > clock) {
        missingSV.set(client, clock);
      }
    };
    let stackHead = (
      /** @type {any} */
      curStructsTarget.refs[
        /** @type {any} */
        curStructsTarget.i++
      ]
    );
    const state = /* @__PURE__ */ new Map();
    const addStackToRestSS = () => {
      for (const item of stack) {
        const client = item.id.client;
        const inapplicableItems = clientsStructRefs.get(client);
        if (inapplicableItems) {
          inapplicableItems.i--;
          restStructs.clients.set(client, inapplicableItems.refs.slice(inapplicableItems.i));
          clientsStructRefs.delete(client);
          inapplicableItems.i = 0;
          inapplicableItems.refs = [];
        } else {
          restStructs.clients.set(client, [item]);
        }
        clientsStructRefsIds = clientsStructRefsIds.filter((c) => c !== client);
      }
      stack.length = 0;
    };
    while (true) {
      if (stackHead.constructor !== Skip) {
        const localClock = setIfUndefined(state, stackHead.id.client, () => getState(store, stackHead.id.client));
        const offset = localClock - stackHead.id.clock;
        if (offset < 0) {
          stack.push(stackHead);
          updateMissingSv(stackHead.id.client, stackHead.id.clock - 1);
          addStackToRestSS();
        } else {
          const missing = stackHead.getMissing(transaction, store);
          if (missing !== null) {
            stack.push(stackHead);
            const structRefs = clientsStructRefs.get(
              /** @type {number} */
              missing
            ) || { refs: [], i: 0 };
            if (structRefs.refs.length === structRefs.i) {
              updateMissingSv(
                /** @type {number} */
                missing,
                getState(store, missing)
              );
              addStackToRestSS();
            } else {
              stackHead = structRefs.refs[structRefs.i++];
              continue;
            }
          } else if (offset === 0 || offset < stackHead.length) {
            stackHead.integrate(transaction, offset);
            state.set(stackHead.id.client, stackHead.id.clock + stackHead.length);
          }
        }
      }
      if (stack.length > 0) {
        stackHead = /** @type {GC|Item} */
        stack.pop();
      } else if (curStructsTarget !== null && curStructsTarget.i < curStructsTarget.refs.length) {
        stackHead = /** @type {GC|Item} */
        curStructsTarget.refs[curStructsTarget.i++];
      } else {
        curStructsTarget = getNextStructTarget();
        if (curStructsTarget === null) {
          break;
        } else {
          stackHead = /** @type {GC|Item} */
          curStructsTarget.refs[curStructsTarget.i++];
        }
      }
    }
    if (restStructs.clients.size > 0) {
      const encoder = new UpdateEncoderV2();
      writeClientsStructs(encoder, restStructs, /* @__PURE__ */ new Map());
      writeVarUint(encoder.restEncoder, 0);
      return { missing: missingSV, update: encoder.toUint8Array() };
    }
    return null;
  };
  var writeStructsFromTransaction = (encoder, transaction) => writeClientsStructs(encoder, transaction.doc.store, transaction.beforeState);
  var readUpdateV2 = (decoder, ydoc, transactionOrigin, structDecoder = new UpdateDecoderV2(decoder)) => transact(ydoc, (transaction) => {
    transaction.local = false;
    let retry = false;
    const doc2 = transaction.doc;
    const store = doc2.store;
    const ss = readClientsStructRefs(structDecoder, doc2);
    const restStructs = integrateStructs(transaction, store, ss);
    const pending = store.pendingStructs;
    if (pending) {
      for (const [client, clock] of pending.missing) {
        if (clock < getState(store, client)) {
          retry = true;
          break;
        }
      }
      if (restStructs) {
        for (const [client, clock] of restStructs.missing) {
          const mclock = pending.missing.get(client);
          if (mclock == null || mclock > clock) {
            pending.missing.set(client, clock);
          }
        }
        pending.update = mergeUpdatesV2([pending.update, restStructs.update]);
      }
    } else {
      store.pendingStructs = restStructs;
    }
    const dsRest = readAndApplyDeleteSet(structDecoder, transaction, store);
    if (store.pendingDs) {
      const pendingDSUpdate = new UpdateDecoderV2(createDecoder(store.pendingDs));
      readVarUint(pendingDSUpdate.restDecoder);
      const dsRest2 = readAndApplyDeleteSet(pendingDSUpdate, transaction, store);
      if (dsRest && dsRest2) {
        store.pendingDs = mergeUpdatesV2([dsRest, dsRest2]);
      } else {
        store.pendingDs = dsRest || dsRest2;
      }
    } else {
      store.pendingDs = dsRest;
    }
    if (retry) {
      const update = (
        /** @type {{update: Uint8Array}} */
        store.pendingStructs.update
      );
      store.pendingStructs = null;
      applyUpdateV2(transaction.doc, update);
    }
  }, transactionOrigin, false);
  var readUpdate = (decoder, ydoc, transactionOrigin) => readUpdateV2(decoder, ydoc, transactionOrigin, new UpdateDecoderV1(decoder));
  var applyUpdateV2 = (ydoc, update, transactionOrigin, YDecoder = UpdateDecoderV2) => {
    const decoder = createDecoder(update);
    readUpdateV2(decoder, ydoc, transactionOrigin, new YDecoder(decoder));
  };
  var applyUpdate = (ydoc, update, transactionOrigin) => applyUpdateV2(ydoc, update, transactionOrigin, UpdateDecoderV1);
  var writeStateAsUpdate = (encoder, doc2, targetStateVector = /* @__PURE__ */ new Map()) => {
    writeClientsStructs(encoder, doc2.store, targetStateVector);
    writeDeleteSet(encoder, createDeleteSetFromStructStore(doc2.store));
  };
  var encodeStateAsUpdateV2 = (doc2, encodedTargetStateVector = new Uint8Array([0]), encoder = new UpdateEncoderV2()) => {
    const targetStateVector = decodeStateVector(encodedTargetStateVector);
    writeStateAsUpdate(encoder, doc2, targetStateVector);
    const updates = [encoder.toUint8Array()];
    if (doc2.store.pendingDs) {
      updates.push(doc2.store.pendingDs);
    }
    if (doc2.store.pendingStructs) {
      updates.push(diffUpdateV2(doc2.store.pendingStructs.update, encodedTargetStateVector));
    }
    if (updates.length > 1) {
      if (encoder.constructor === UpdateEncoderV1) {
        return mergeUpdates(updates.map((update, i) => i === 0 ? update : convertUpdateFormatV2ToV1(update)));
      } else if (encoder.constructor === UpdateEncoderV2) {
        return mergeUpdatesV2(updates);
      }
    }
    return updates[0];
  };
  var encodeStateAsUpdate = (doc2, encodedTargetStateVector) => encodeStateAsUpdateV2(doc2, encodedTargetStateVector, new UpdateEncoderV1());
  var readStateVector = (decoder) => {
    const ss = /* @__PURE__ */ new Map();
    const ssLength = readVarUint(decoder.restDecoder);
    for (let i = 0; i < ssLength; i++) {
      const client = readVarUint(decoder.restDecoder);
      const clock = readVarUint(decoder.restDecoder);
      ss.set(client, clock);
    }
    return ss;
  };
  var decodeStateVector = (decodedState) => readStateVector(new DSDecoderV1(createDecoder(decodedState)));
  var writeStateVector = (encoder, sv) => {
    writeVarUint(encoder.restEncoder, sv.size);
    from(sv.entries()).sort((a, b) => b[0] - a[0]).forEach(([client, clock]) => {
      writeVarUint(encoder.restEncoder, client);
      writeVarUint(encoder.restEncoder, clock);
    });
    return encoder;
  };
  var writeDocumentStateVector = (encoder, doc2) => writeStateVector(encoder, getStateVector(doc2.store));
  var encodeStateVectorV2 = (doc2, encoder = new DSEncoderV2()) => {
    if (doc2 instanceof Map) {
      writeStateVector(encoder, doc2);
    } else {
      writeDocumentStateVector(encoder, doc2);
    }
    return encoder.toUint8Array();
  };
  var encodeStateVector = (doc2) => encodeStateVectorV2(doc2, new DSEncoderV1());
  var EventHandler = class {
    constructor() {
      this.l = [];
    }
  };
  var createEventHandler = () => new EventHandler();
  var addEventHandlerListener = (eventHandler, f) => eventHandler.l.push(f);
  var removeEventHandlerListener = (eventHandler, f) => {
    const l = eventHandler.l;
    const len = l.length;
    eventHandler.l = l.filter((g) => f !== g);
    if (len === eventHandler.l.length) {
      console.error("[yjs] Tried to remove event handler that doesn't exist.");
    }
  };
  var callEventHandlerListeners = (eventHandler, arg0, arg1) => callAll(eventHandler.l, [arg0, arg1]);
  var ID = class {
    /**
     * @param {number} client client id
     * @param {number} clock unique per client id, continuous number
     */
    constructor(client, clock) {
      this.client = client;
      this.clock = clock;
    }
  };
  var compareIDs = (a, b) => a === b || a !== null && b !== null && a.client === b.client && a.clock === b.clock;
  var createID = (client, clock) => new ID(client, clock);
  var writeID = (encoder, id2) => {
    writeVarUint(encoder, id2.client);
    writeVarUint(encoder, id2.clock);
  };
  var readID = (decoder) => createID(readVarUint(decoder), readVarUint(decoder));
  var findRootTypeKey = (type) => {
    for (const [key, value] of type.doc.share.entries()) {
      if (value === type) {
        return key;
      }
    }
    throw unexpectedCase();
  };
  var isParentOf = (parent, child) => {
    while (child !== null) {
      if (child.parent === parent) {
        return true;
      }
      child = /** @type {AbstractType<any>} */
      child.parent._item;
    }
    return false;
  };
  var logType = (type) => {
    const res = [];
    let n = type._start;
    while (n) {
      res.push(n);
      n = n.right;
    }
    console.log("Children: ", res);
    console.log("Children content: ", res.filter((m) => !m.deleted).map((m) => m.content));
  };
  var PermanentUserData = class {
    /**
     * @param {Doc} doc
     * @param {YMap<any>} [storeType]
     */
    constructor(doc2, storeType = doc2.getMap("users")) {
      const dss = /* @__PURE__ */ new Map();
      this.yusers = storeType;
      this.doc = doc2;
      this.clients = /* @__PURE__ */ new Map();
      this.dss = dss;
      const initUser = (user, userDescription) => {
        const ds = user.get("ds");
        const ids = user.get("ids");
        const addClientId = (
          /** @param {number} clientid */
          (clientid) => this.clients.set(clientid, userDescription)
        );
        ds.observe(
          /** @param {YArrayEvent<any>} event */
          (event) => {
            event.changes.added.forEach((item) => {
              item.content.getContent().forEach((encodedDs) => {
                if (encodedDs instanceof Uint8Array) {
                  this.dss.set(userDescription, mergeDeleteSets([this.dss.get(userDescription) || createDeleteSet(), readDeleteSet(new DSDecoderV1(createDecoder(encodedDs)))]));
                }
              });
            });
          }
        );
        this.dss.set(userDescription, mergeDeleteSets(ds.map((encodedDs) => readDeleteSet(new DSDecoderV1(createDecoder(encodedDs))))));
        ids.observe(
          /** @param {YArrayEvent<any>} event */
          (event) => event.changes.added.forEach((item) => item.content.getContent().forEach(addClientId))
        );
        ids.forEach(addClientId);
      };
      storeType.observe((event) => {
        event.keysChanged.forEach(
          (userDescription) => initUser(storeType.get(userDescription), userDescription)
        );
      });
      storeType.forEach(initUser);
    }
    /**
     * @param {Doc} doc
     * @param {number} clientid
     * @param {string} userDescription
     * @param {Object} conf
     * @param {function(Transaction, DeleteSet):boolean} [conf.filter]
     */
    setUserMapping(doc2, clientid, userDescription, { filter = () => true } = {}) {
      const users = this.yusers;
      let user = users.get(userDescription);
      if (!user) {
        user = new YMap();
        user.set("ids", new YArray());
        user.set("ds", new YArray());
        users.set(userDescription, user);
      }
      user.get("ids").push([clientid]);
      users.observe((_event) => {
        setTimeout(() => {
          const userOverwrite = users.get(userDescription);
          if (userOverwrite !== user) {
            user = userOverwrite;
            this.clients.forEach((_userDescription, clientid2) => {
              if (userDescription === _userDescription) {
                user.get("ids").push([clientid2]);
              }
            });
            const encoder = new DSEncoderV1();
            const ds = this.dss.get(userDescription);
            if (ds) {
              writeDeleteSet(encoder, ds);
              user.get("ds").push([encoder.toUint8Array()]);
            }
          }
        }, 0);
      });
      doc2.on(
        "afterTransaction",
        /** @param {Transaction} transaction */
        (transaction) => {
          setTimeout(() => {
            const yds = user.get("ds");
            const ds = transaction.deleteSet;
            if (transaction.local && ds.clients.size > 0 && filter(transaction, ds)) {
              const encoder = new DSEncoderV1();
              writeDeleteSet(encoder, ds);
              yds.push([encoder.toUint8Array()]);
            }
          });
        }
      );
    }
    /**
     * @param {number} clientid
     * @return {any}
     */
    getUserByClientId(clientid) {
      return this.clients.get(clientid) || null;
    }
    /**
     * @param {ID} id
     * @return {string | null}
     */
    getUserByDeletedId(id2) {
      for (const [userDescription, ds] of this.dss.entries()) {
        if (isDeleted(ds, id2)) {
          return userDescription;
        }
      }
      return null;
    }
  };
  var RelativePosition = class {
    /**
     * @param {ID|null} type
     * @param {string|null} tname
     * @param {ID|null} item
     * @param {number} assoc
     */
    constructor(type, tname, item, assoc = 0) {
      this.type = type;
      this.tname = tname;
      this.item = item;
      this.assoc = assoc;
    }
  };
  var relativePositionToJSON = (rpos) => {
    const json = {};
    if (rpos.type) {
      json.type = rpos.type;
    }
    if (rpos.tname) {
      json.tname = rpos.tname;
    }
    if (rpos.item) {
      json.item = rpos.item;
    }
    if (rpos.assoc != null) {
      json.assoc = rpos.assoc;
    }
    return json;
  };
  var createRelativePositionFromJSON = (json) => new RelativePosition(json.type == null ? null : createID(json.type.client, json.type.clock), json.tname ?? null, json.item == null ? null : createID(json.item.client, json.item.clock), json.assoc == null ? 0 : json.assoc);
  var AbsolutePosition = class {
    /**
     * @param {AbstractType<any>} type
     * @param {number} index
     * @param {number} [assoc]
     */
    constructor(type, index, assoc = 0) {
      this.type = type;
      this.index = index;
      this.assoc = assoc;
    }
  };
  var createAbsolutePosition = (type, index, assoc = 0) => new AbsolutePosition(type, index, assoc);
  var createRelativePosition = (type, item, assoc) => {
    let typeid = null;
    let tname = null;
    if (type._item === null) {
      tname = findRootTypeKey(type);
    } else {
      typeid = createID(type._item.id.client, type._item.id.clock);
    }
    return new RelativePosition(typeid, tname, item, assoc);
  };
  var createRelativePositionFromTypeIndex = (type, index, assoc = 0) => {
    let t = type._start;
    if (assoc < 0) {
      if (index === 0) {
        return createRelativePosition(type, null, assoc);
      }
      index--;
    }
    while (t !== null) {
      if (!t.deleted && t.countable) {
        if (t.length > index) {
          return createRelativePosition(type, createID(t.id.client, t.id.clock + index), assoc);
        }
        index -= t.length;
      }
      if (t.right === null && assoc < 0) {
        return createRelativePosition(type, t.lastId, assoc);
      }
      t = t.right;
    }
    return createRelativePosition(type, null, assoc);
  };
  var writeRelativePosition = (encoder, rpos) => {
    const { type, tname, item, assoc } = rpos;
    if (item !== null) {
      writeVarUint(encoder, 0);
      writeID(encoder, item);
    } else if (tname !== null) {
      writeUint8(encoder, 1);
      writeVarString(encoder, tname);
    } else if (type !== null) {
      writeUint8(encoder, 2);
      writeID(encoder, type);
    } else {
      throw unexpectedCase();
    }
    writeVarInt(encoder, assoc);
    return encoder;
  };
  var encodeRelativePosition = (rpos) => {
    const encoder = createEncoder();
    writeRelativePosition(encoder, rpos);
    return toUint8Array(encoder);
  };
  var readRelativePosition = (decoder) => {
    let type = null;
    let tname = null;
    let itemID = null;
    switch (readVarUint(decoder)) {
      case 0:
        itemID = readID(decoder);
        break;
      case 1:
        tname = readVarString(decoder);
        break;
      case 2: {
        type = readID(decoder);
      }
    }
    const assoc = hasContent(decoder) ? readVarInt(decoder) : 0;
    return new RelativePosition(type, tname, itemID, assoc);
  };
  var decodeRelativePosition = (uint8Array) => readRelativePosition(createDecoder(uint8Array));
  var getItemWithOffset = (store, id2) => {
    const item = getItem(store, id2);
    const diff = id2.clock - item.id.clock;
    return {
      item,
      diff
    };
  };
  var createAbsolutePositionFromRelativePosition = (rpos, doc2, followUndoneDeletions = true) => {
    const store = doc2.store;
    const rightID = rpos.item;
    const typeID = rpos.type;
    const tname = rpos.tname;
    const assoc = rpos.assoc;
    let type = null;
    let index = 0;
    if (rightID !== null) {
      if (getState(store, rightID.client) <= rightID.clock) {
        return null;
      }
      const res = followUndoneDeletions ? followRedone(store, rightID) : getItemWithOffset(store, rightID);
      const right = res.item;
      if (!(right instanceof Item)) {
        return null;
      }
      type = /** @type {AbstractType<any>} */
      right.parent;
      if (type._item === null || !type._item.deleted) {
        index = right.deleted || !right.countable ? 0 : res.diff + (assoc >= 0 ? 0 : 1);
        let n = right.left;
        while (n !== null) {
          if (!n.deleted && n.countable) {
            index += n.length;
          }
          n = n.left;
        }
      }
    } else {
      if (tname !== null) {
        type = doc2.get(tname);
      } else if (typeID !== null) {
        if (getState(store, typeID.client) <= typeID.clock) {
          return null;
        }
        const { item } = followUndoneDeletions ? followRedone(store, typeID) : { item: getItem(store, typeID) };
        if (item instanceof Item && item.content instanceof ContentType) {
          type = item.content.type;
        } else {
          return null;
        }
      } else {
        throw unexpectedCase();
      }
      if (assoc >= 0) {
        index = type._length;
      } else {
        index = 0;
      }
    }
    return createAbsolutePosition(type, index, rpos.assoc);
  };
  var compareRelativePositions = (a, b) => a === b || a !== null && b !== null && a.tname === b.tname && compareIDs(a.item, b.item) && compareIDs(a.type, b.type) && a.assoc === b.assoc;
  var Snapshot = class {
    /**
     * @param {DeleteSet} ds
     * @param {Map<number,number>} sv state map
     */
    constructor(ds, sv) {
      this.ds = ds;
      this.sv = sv;
    }
  };
  var equalSnapshots = (snap1, snap2) => {
    const ds1 = snap1.ds.clients;
    const ds2 = snap2.ds.clients;
    const sv1 = snap1.sv;
    const sv2 = snap2.sv;
    if (sv1.size !== sv2.size || ds1.size !== ds2.size) {
      return false;
    }
    for (const [key, value] of sv1.entries()) {
      if (sv2.get(key) !== value) {
        return false;
      }
    }
    for (const [client, dsitems1] of ds1.entries()) {
      const dsitems2 = ds2.get(client) || [];
      if (dsitems1.length !== dsitems2.length) {
        return false;
      }
      for (let i = 0; i < dsitems1.length; i++) {
        const dsitem1 = dsitems1[i];
        const dsitem2 = dsitems2[i];
        if (dsitem1.clock !== dsitem2.clock || dsitem1.len !== dsitem2.len) {
          return false;
        }
      }
    }
    return true;
  };
  var encodeSnapshotV2 = (snapshot2, encoder = new DSEncoderV2()) => {
    writeDeleteSet(encoder, snapshot2.ds);
    writeStateVector(encoder, snapshot2.sv);
    return encoder.toUint8Array();
  };
  var encodeSnapshot = (snapshot2) => encodeSnapshotV2(snapshot2, new DSEncoderV1());
  var decodeSnapshotV2 = (buf, decoder = new DSDecoderV2(createDecoder(buf))) => {
    return new Snapshot(readDeleteSet(decoder), readStateVector(decoder));
  };
  var decodeSnapshot = (buf) => decodeSnapshotV2(buf, new DSDecoderV1(createDecoder(buf)));
  var createSnapshot = (ds, sm) => new Snapshot(ds, sm);
  var emptySnapshot = createSnapshot(createDeleteSet(), /* @__PURE__ */ new Map());
  var snapshot = (doc2) => createSnapshot(createDeleteSetFromStructStore(doc2.store), getStateVector(doc2.store));
  var isVisible = (item, snapshot2) => snapshot2 === void 0 ? !item.deleted : snapshot2.sv.has(item.id.client) && (snapshot2.sv.get(item.id.client) || 0) > item.id.clock && !isDeleted(snapshot2.ds, item.id);
  var splitSnapshotAffectedStructs = (transaction, snapshot2) => {
    const meta = setIfUndefined(transaction.meta, splitSnapshotAffectedStructs, create2);
    const store = transaction.doc.store;
    if (!meta.has(snapshot2)) {
      snapshot2.sv.forEach((clock, client) => {
        if (clock < getState(store, client)) {
          getItemCleanStart(transaction, createID(client, clock));
        }
      });
      iterateDeletedStructs(transaction, snapshot2.ds, (_item) => {
      });
      meta.add(snapshot2);
    }
  };
  var createDocFromSnapshot = (originDoc, snapshot2, newDoc = new Doc()) => {
    if (originDoc.gc) {
      throw new Error("Garbage-collection must be disabled in `originDoc`!");
    }
    const { sv, ds } = snapshot2;
    const encoder = new UpdateEncoderV2();
    originDoc.transact((transaction) => {
      let size2 = 0;
      sv.forEach((clock) => {
        if (clock > 0) {
          size2++;
        }
      });
      writeVarUint(encoder.restEncoder, size2);
      for (const [client, clock] of sv) {
        if (clock === 0) {
          continue;
        }
        if (clock < getState(originDoc.store, client)) {
          getItemCleanStart(transaction, createID(client, clock));
        }
        const structs = originDoc.store.clients.get(client) || [];
        const lastStructIndex = findIndexSS(structs, clock - 1);
        writeVarUint(encoder.restEncoder, lastStructIndex + 1);
        encoder.writeClient(client);
        writeVarUint(encoder.restEncoder, 0);
        for (let i = 0; i <= lastStructIndex; i++) {
          structs[i].write(encoder, 0);
        }
      }
      writeDeleteSet(encoder, ds);
    });
    applyUpdateV2(newDoc, encoder.toUint8Array(), "snapshot");
    return newDoc;
  };
  var snapshotContainsUpdateV2 = (snapshot2, update, YDecoder = UpdateDecoderV2) => {
    const updateDecoder = new YDecoder(createDecoder(update));
    const lazyDecoder = new LazyStructReader(updateDecoder, false);
    for (let curr = lazyDecoder.curr; curr !== null; curr = lazyDecoder.next()) {
      if ((snapshot2.sv.get(curr.id.client) || 0) < curr.id.clock + curr.length) {
        return false;
      }
    }
    const mergedDS = mergeDeleteSets([snapshot2.ds, readDeleteSet(updateDecoder)]);
    return equalDeleteSets(snapshot2.ds, mergedDS);
  };
  var snapshotContainsUpdate = (snapshot2, update) => snapshotContainsUpdateV2(snapshot2, update, UpdateDecoderV1);
  var StructStore = class {
    constructor() {
      this.clients = /* @__PURE__ */ new Map();
      this.pendingStructs = null;
      this.pendingDs = null;
    }
  };
  var getStateVector = (store) => {
    const sm = /* @__PURE__ */ new Map();
    store.clients.forEach((structs, client) => {
      const struct = structs[structs.length - 1];
      sm.set(client, struct.id.clock + struct.length);
    });
    return sm;
  };
  var getState = (store, client) => {
    const structs = store.clients.get(client);
    if (structs === void 0) {
      return 0;
    }
    const lastStruct = structs[structs.length - 1];
    return lastStruct.id.clock + lastStruct.length;
  };
  var addStruct = (store, struct) => {
    let structs = store.clients.get(struct.id.client);
    if (structs === void 0) {
      structs = [];
      store.clients.set(struct.id.client, structs);
    } else {
      const lastStruct = structs[structs.length - 1];
      if (lastStruct.id.clock + lastStruct.length !== struct.id.clock) {
        throw unexpectedCase();
      }
    }
    structs.push(struct);
  };
  var findIndexSS = (structs, clock) => {
    let left = 0;
    let right = structs.length - 1;
    let mid = structs[right];
    let midclock = mid.id.clock;
    if (midclock === clock) {
      return right;
    }
    let midindex = floor(clock / (midclock + mid.length - 1) * right);
    while (left <= right) {
      mid = structs[midindex];
      midclock = mid.id.clock;
      if (midclock <= clock) {
        if (clock < midclock + mid.length) {
          return midindex;
        }
        left = midindex + 1;
      } else {
        right = midindex - 1;
      }
      midindex = floor((left + right) / 2);
    }
    throw unexpectedCase();
  };
  var find = (store, id2) => {
    const structs = store.clients.get(id2.client);
    return structs[findIndexSS(structs, id2.clock)];
  };
  var getItem = (
    /** @type {function(StructStore,ID):Item} */
    find
  );
  var findIndexCleanStart = (transaction, structs, clock) => {
    const index = findIndexSS(structs, clock);
    const struct = structs[index];
    if (struct.id.clock < clock && struct instanceof Item) {
      structs.splice(index + 1, 0, splitItem(transaction, struct, clock - struct.id.clock));
      return index + 1;
    }
    return index;
  };
  var getItemCleanStart = (transaction, id2) => {
    const structs = (
      /** @type {Array<Item>} */
      transaction.doc.store.clients.get(id2.client)
    );
    return structs[findIndexCleanStart(transaction, structs, id2.clock)];
  };
  var getItemCleanEnd = (transaction, store, id2) => {
    const structs = store.clients.get(id2.client);
    const index = findIndexSS(structs, id2.clock);
    const struct = structs[index];
    if (id2.clock !== struct.id.clock + struct.length - 1 && struct.constructor !== GC) {
      structs.splice(index + 1, 0, splitItem(transaction, struct, id2.clock - struct.id.clock + 1));
    }
    return struct;
  };
  var replaceStruct = (store, struct, newStruct) => {
    const structs = (
      /** @type {Array<GC|Item>} */
      store.clients.get(struct.id.client)
    );
    structs[findIndexSS(structs, struct.id.clock)] = newStruct;
  };
  var iterateStructs = (transaction, structs, clockStart, len, f) => {
    if (len === 0) {
      return;
    }
    const clockEnd = clockStart + len;
    let index = findIndexCleanStart(transaction, structs, clockStart);
    let struct;
    do {
      struct = structs[index++];
      if (clockEnd < struct.id.clock + struct.length) {
        findIndexCleanStart(transaction, structs, clockEnd);
      }
      f(struct);
    } while (index < structs.length && structs[index].id.clock < clockEnd);
  };
  var Transaction = class {
    /**
     * @param {Doc} doc
     * @param {any} origin
     * @param {boolean} local
     */
    constructor(doc2, origin2, local) {
      this.doc = doc2;
      this.deleteSet = new DeleteSet();
      this.beforeState = getStateVector(doc2.store);
      this.afterState = /* @__PURE__ */ new Map();
      this.changed = /* @__PURE__ */ new Map();
      this.changedParentTypes = /* @__PURE__ */ new Map();
      this._mergeStructs = [];
      this.origin = origin2;
      this.meta = /* @__PURE__ */ new Map();
      this.local = local;
      this.subdocsAdded = /* @__PURE__ */ new Set();
      this.subdocsRemoved = /* @__PURE__ */ new Set();
      this.subdocsLoaded = /* @__PURE__ */ new Set();
      this._needFormattingCleanup = false;
    }
  };
  var writeUpdateMessageFromTransaction = (encoder, transaction) => {
    if (transaction.deleteSet.clients.size === 0 && !any(transaction.afterState, (clock, client) => transaction.beforeState.get(client) !== clock)) {
      return false;
    }
    sortAndMergeDeleteSet(transaction.deleteSet);
    writeStructsFromTransaction(encoder, transaction);
    writeDeleteSet(encoder, transaction.deleteSet);
    return true;
  };
  var addChangedTypeToTransaction = (transaction, type, parentSub) => {
    const item = type._item;
    if (item === null || item.id.clock < (transaction.beforeState.get(item.id.client) || 0) && !item.deleted) {
      setIfUndefined(transaction.changed, type, create2).add(parentSub);
    }
  };
  var tryToMergeWithLefts = (structs, pos) => {
    let right = structs[pos];
    let left = structs[pos - 1];
    let i = pos;
    for (; i > 0; right = left, left = structs[--i - 1]) {
      if (left.deleted === right.deleted && left.constructor === right.constructor) {
        if (left.mergeWith(right)) {
          if (right instanceof Item && right.parentSub !== null && /** @type {AbstractType<any>} */
          right.parent._map.get(right.parentSub) === right) {
            right.parent._map.set(
              right.parentSub,
              /** @type {Item} */
              left
            );
          }
          continue;
        }
      }
      break;
    }
    const merged = pos - i;
    if (merged) {
      structs.splice(pos + 1 - merged, merged);
    }
    return merged;
  };
  var tryGcDeleteSet = (ds, store, gcFilter) => {
    for (const [client, deleteItems] of ds.clients.entries()) {
      const structs = (
        /** @type {Array<GC|Item>} */
        store.clients.get(client)
      );
      for (let di = deleteItems.length - 1; di >= 0; di--) {
        const deleteItem = deleteItems[di];
        const endDeleteItemClock = deleteItem.clock + deleteItem.len;
        for (let si = findIndexSS(structs, deleteItem.clock), struct = structs[si]; si < structs.length && struct.id.clock < endDeleteItemClock; struct = structs[++si]) {
          const struct2 = structs[si];
          if (deleteItem.clock + deleteItem.len <= struct2.id.clock) {
            break;
          }
          if (struct2 instanceof Item && struct2.deleted && !struct2.keep && gcFilter(struct2)) {
            struct2.gc(store, false);
          }
        }
      }
    }
  };
  var tryMergeDeleteSet = (ds, store) => {
    ds.clients.forEach((deleteItems, client) => {
      const structs = (
        /** @type {Array<GC|Item>} */
        store.clients.get(client)
      );
      for (let di = deleteItems.length - 1; di >= 0; di--) {
        const deleteItem = deleteItems[di];
        const mostRightIndexToCheck = min(structs.length - 1, 1 + findIndexSS(structs, deleteItem.clock + deleteItem.len - 1));
        for (let si = mostRightIndexToCheck, struct = structs[si]; si > 0 && struct.id.clock >= deleteItem.clock; struct = structs[si]) {
          si -= 1 + tryToMergeWithLefts(structs, si);
        }
      }
    });
  };
  var tryGc = (ds, store, gcFilter) => {
    tryGcDeleteSet(ds, store, gcFilter);
    tryMergeDeleteSet(ds, store);
  };
  var cleanupTransactions = (transactionCleanups, i) => {
    if (i < transactionCleanups.length) {
      const transaction = transactionCleanups[i];
      const doc2 = transaction.doc;
      const store = doc2.store;
      const ds = transaction.deleteSet;
      const mergeStructs = transaction._mergeStructs;
      try {
        sortAndMergeDeleteSet(ds);
        transaction.afterState = getStateVector(transaction.doc.store);
        doc2.emit("beforeObserverCalls", [transaction, doc2]);
        const fs = [];
        transaction.changed.forEach(
          (subs, itemtype) => fs.push(() => {
            if (itemtype._item === null || !itemtype._item.deleted) {
              itemtype._callObserver(transaction, subs);
            }
          })
        );
        fs.push(() => {
          transaction.changedParentTypes.forEach((events, type) => {
            if (type._dEH.l.length > 0 && (type._item === null || !type._item.deleted)) {
              events = events.filter(
                (event) => event.target._item === null || !event.target._item.deleted
              );
              events.forEach((event) => {
                event.currentTarget = type;
                event._path = null;
              });
              events.sort((event1, event2) => event1.path.length - event2.path.length);
              fs.push(() => {
                callEventHandlerListeners(type._dEH, events, transaction);
              });
            }
          });
          fs.push(() => doc2.emit("afterTransaction", [transaction, doc2]));
          fs.push(() => {
            if (transaction._needFormattingCleanup) {
              cleanupYTextAfterTransaction(transaction);
            }
          });
        });
        callAll(fs, []);
      } finally {
        if (doc2.gc) {
          tryGcDeleteSet(ds, store, doc2.gcFilter);
        }
        tryMergeDeleteSet(ds, store);
        transaction.afterState.forEach((clock, client) => {
          const beforeClock = transaction.beforeState.get(client) || 0;
          if (beforeClock !== clock) {
            const structs = (
              /** @type {Array<GC|Item>} */
              store.clients.get(client)
            );
            const firstChangePos = max(findIndexSS(structs, beforeClock), 1);
            for (let i2 = structs.length - 1; i2 >= firstChangePos; ) {
              i2 -= 1 + tryToMergeWithLefts(structs, i2);
            }
          }
        });
        for (let i2 = mergeStructs.length - 1; i2 >= 0; i2--) {
          const { client, clock } = mergeStructs[i2].id;
          const structs = (
            /** @type {Array<GC|Item>} */
            store.clients.get(client)
          );
          const replacedStructPos = findIndexSS(structs, clock);
          if (replacedStructPos + 1 < structs.length) {
            if (tryToMergeWithLefts(structs, replacedStructPos + 1) > 1) {
              continue;
            }
          }
          if (replacedStructPos > 0) {
            tryToMergeWithLefts(structs, replacedStructPos);
          }
        }
        if (!transaction.local && transaction.afterState.get(doc2.clientID) !== transaction.beforeState.get(doc2.clientID)) {
          print(ORANGE, BOLD, "[yjs] ", UNBOLD, RED, "Changed the client-id because another client seems to be using it.");
          doc2.clientID = generateNewClientId();
        }
        doc2.emit("afterTransactionCleanup", [transaction, doc2]);
        if (doc2._observers.has("update")) {
          const encoder = new UpdateEncoderV1();
          const hasContent2 = writeUpdateMessageFromTransaction(encoder, transaction);
          if (hasContent2) {
            doc2.emit("update", [encoder.toUint8Array(), transaction.origin, doc2, transaction]);
          }
        }
        if (doc2._observers.has("updateV2")) {
          const encoder = new UpdateEncoderV2();
          const hasContent2 = writeUpdateMessageFromTransaction(encoder, transaction);
          if (hasContent2) {
            doc2.emit("updateV2", [encoder.toUint8Array(), transaction.origin, doc2, transaction]);
          }
        }
        const { subdocsAdded, subdocsLoaded, subdocsRemoved } = transaction;
        if (subdocsAdded.size > 0 || subdocsRemoved.size > 0 || subdocsLoaded.size > 0) {
          subdocsAdded.forEach((subdoc) => {
            subdoc.clientID = doc2.clientID;
            if (subdoc.collectionid == null) {
              subdoc.collectionid = doc2.collectionid;
            }
            doc2.subdocs.add(subdoc);
          });
          subdocsRemoved.forEach((subdoc) => doc2.subdocs.delete(subdoc));
          doc2.emit("subdocs", [{ loaded: subdocsLoaded, added: subdocsAdded, removed: subdocsRemoved }, doc2, transaction]);
          subdocsRemoved.forEach((subdoc) => subdoc.destroy());
        }
        if (transactionCleanups.length <= i + 1) {
          doc2._transactionCleanups = [];
          doc2.emit("afterAllTransactions", [doc2, transactionCleanups]);
        } else {
          cleanupTransactions(transactionCleanups, i + 1);
        }
      }
    }
  };
  var transact = (doc2, f, origin2 = null, local = true) => {
    const transactionCleanups = doc2._transactionCleanups;
    let initialCall = false;
    let result = null;
    if (doc2._transaction === null) {
      initialCall = true;
      doc2._transaction = new Transaction(doc2, origin2, local);
      transactionCleanups.push(doc2._transaction);
      if (transactionCleanups.length === 1) {
        doc2.emit("beforeAllTransactions", [doc2]);
      }
      doc2.emit("beforeTransaction", [doc2._transaction, doc2]);
    }
    try {
      result = f(doc2._transaction);
    } finally {
      if (initialCall) {
        const finishCleanup = doc2._transaction === transactionCleanups[0];
        doc2._transaction = null;
        if (finishCleanup) {
          cleanupTransactions(transactionCleanups, 0);
        }
      }
    }
    return result;
  };
  var StackItem = class {
    /**
     * @param {DeleteSet} deletions
     * @param {DeleteSet} insertions
     */
    constructor(deletions, insertions) {
      this.insertions = insertions;
      this.deletions = deletions;
      this.meta = /* @__PURE__ */ new Map();
    }
  };
  var clearUndoManagerStackItem = (tr, um, stackItem) => {
    iterateDeletedStructs(tr, stackItem.deletions, (item) => {
      if (item instanceof Item && um.scope.some((type) => type === tr.doc || isParentOf(
        /** @type {AbstractType<any>} */
        type,
        item
      ))) {
        keepItem(item, false);
      }
    });
  };
  var popStackItem = (undoManager, stack, eventType) => {
    let _tr = null;
    const doc2 = undoManager.doc;
    const scope = undoManager.scope;
    transact(doc2, (transaction) => {
      while (stack.length > 0 && undoManager.currStackItem === null) {
        const store = doc2.store;
        const stackItem = (
          /** @type {StackItem} */
          stack.pop()
        );
        const itemsToRedo = /* @__PURE__ */ new Set();
        const itemsToDelete = [];
        let performedChange = false;
        iterateDeletedStructs(transaction, stackItem.insertions, (struct) => {
          if (struct instanceof Item) {
            if (struct.redone !== null) {
              let { item, diff } = followRedone(store, struct.id);
              if (diff > 0) {
                item = getItemCleanStart(transaction, createID(item.id.client, item.id.clock + diff));
              }
              struct = item;
            }
            if (!struct.deleted && scope.some((type) => type === transaction.doc || isParentOf(
              /** @type {AbstractType<any>} */
              type,
              /** @type {Item} */
              struct
            ))) {
              itemsToDelete.push(struct);
            }
          }
        });
        iterateDeletedStructs(transaction, stackItem.deletions, (struct) => {
          if (struct instanceof Item && scope.some((type) => type === transaction.doc || isParentOf(
            /** @type {AbstractType<any>} */
            type,
            struct
          )) && // Never redo structs in stackItem.insertions because they were created and deleted in the same capture interval.
          !isDeleted(stackItem.insertions, struct.id)) {
            itemsToRedo.add(struct);
          }
        });
        itemsToRedo.forEach((struct) => {
          performedChange = redoItem(transaction, struct, itemsToRedo, stackItem.insertions, undoManager.ignoreRemoteMapChanges, undoManager) !== null || performedChange;
        });
        for (let i = itemsToDelete.length - 1; i >= 0; i--) {
          const item = itemsToDelete[i];
          if (undoManager.deleteFilter(item)) {
            item.delete(transaction);
            performedChange = true;
          }
        }
        undoManager.currStackItem = performedChange ? stackItem : null;
      }
      transaction.changed.forEach((subProps, type) => {
        if (subProps.has(null) && type._searchMarker) {
          type._searchMarker.length = 0;
        }
      });
      _tr = transaction;
    }, undoManager);
    const res = undoManager.currStackItem;
    if (res != null) {
      const changedParentTypes = _tr.changedParentTypes;
      undoManager.emit("stack-item-popped", [{ stackItem: res, type: eventType, changedParentTypes, origin: undoManager }, undoManager]);
      undoManager.currStackItem = null;
    }
    return res;
  };
  var UndoManager = class extends ObservableV2 {
    /**
     * @param {Doc|AbstractType<any>|Array<AbstractType<any>>} typeScope Limits the scope of the UndoManager. If this is set to a ydoc instance, all changes on that ydoc will be undone. If set to a specific type, only changes on that type or its children will be undone. Also accepts an array of types.
     * @param {UndoManagerOptions} options
     */
    constructor(typeScope, {
      captureTimeout = 500,
      captureTransaction = (_tr) => true,
      deleteFilter = () => true,
      trackedOrigins = /* @__PURE__ */ new Set([null]),
      ignoreRemoteMapChanges = false,
      doc: doc2 = (
        /** @type {Doc} */
        isArray(typeScope) ? typeScope[0].doc : typeScope instanceof Doc ? typeScope : typeScope.doc
      )
    } = {}) {
      super();
      this.scope = [];
      this.doc = doc2;
      this.addToScope(typeScope);
      this.deleteFilter = deleteFilter;
      trackedOrigins.add(this);
      this.trackedOrigins = trackedOrigins;
      this.captureTransaction = captureTransaction;
      this.undoStack = [];
      this.redoStack = [];
      this.undoing = false;
      this.redoing = false;
      this.currStackItem = null;
      this.lastChange = 0;
      this.ignoreRemoteMapChanges = ignoreRemoteMapChanges;
      this.captureTimeout = captureTimeout;
      this.afterTransactionHandler = (transaction) => {
        if (!this.captureTransaction(transaction) || !this.scope.some((type) => transaction.changedParentTypes.has(
          /** @type {AbstractType<any>} */
          type
        ) || type === this.doc) || !this.trackedOrigins.has(transaction.origin) && (!transaction.origin || !this.trackedOrigins.has(transaction.origin.constructor))) {
          return;
        }
        const undoing = this.undoing;
        const redoing = this.redoing;
        const stack = undoing ? this.redoStack : this.undoStack;
        if (undoing) {
          this.stopCapturing();
        } else if (!redoing) {
          this.clear(false, true);
        }
        const insertions = new DeleteSet();
        transaction.afterState.forEach((endClock, client) => {
          const startClock = transaction.beforeState.get(client) || 0;
          const len = endClock - startClock;
          if (len > 0) {
            addToDeleteSet(insertions, client, startClock, len);
          }
        });
        const now = getUnixTime();
        let didAdd = false;
        if (this.lastChange > 0 && now - this.lastChange < this.captureTimeout && stack.length > 0 && !undoing && !redoing) {
          const lastOp = stack[stack.length - 1];
          lastOp.deletions = mergeDeleteSets([lastOp.deletions, transaction.deleteSet]);
          lastOp.insertions = mergeDeleteSets([lastOp.insertions, insertions]);
        } else {
          stack.push(new StackItem(transaction.deleteSet, insertions));
          didAdd = true;
        }
        if (!undoing && !redoing) {
          this.lastChange = now;
        }
        iterateDeletedStructs(
          transaction,
          transaction.deleteSet,
          /** @param {Item|GC} item */
          (item) => {
            if (item instanceof Item && this.scope.some((type) => type === transaction.doc || isParentOf(
              /** @type {AbstractType<any>} */
              type,
              item
            ))) {
              keepItem(item, true);
            }
          }
        );
        const changeEvent = [{ stackItem: stack[stack.length - 1], origin: transaction.origin, type: undoing ? "redo" : "undo", changedParentTypes: transaction.changedParentTypes }, this];
        if (didAdd) {
          this.emit("stack-item-added", changeEvent);
        } else {
          this.emit("stack-item-updated", changeEvent);
        }
      };
      this.doc.on("afterTransaction", this.afterTransactionHandler);
      this.doc.on("destroy", () => {
        this.destroy();
      });
    }
    /**
     * Extend the scope.
     *
     * @param {Array<AbstractType<any> | Doc> | AbstractType<any> | Doc} ytypes
     */
    addToScope(ytypes) {
      const tmpSet = new Set(this.scope);
      ytypes = isArray(ytypes) ? ytypes : [ytypes];
      ytypes.forEach((ytype) => {
        if (!tmpSet.has(ytype)) {
          tmpSet.add(ytype);
          if (ytype instanceof AbstractType ? ytype.doc !== this.doc : ytype !== this.doc) warn("[yjs#509] Not same Y.Doc");
          this.scope.push(ytype);
        }
      });
    }
    /**
     * @param {any} origin
     */
    addTrackedOrigin(origin2) {
      this.trackedOrigins.add(origin2);
    }
    /**
     * @param {any} origin
     */
    removeTrackedOrigin(origin2) {
      this.trackedOrigins.delete(origin2);
    }
    clear(clearUndoStack = true, clearRedoStack = true) {
      if (clearUndoStack && this.canUndo() || clearRedoStack && this.canRedo()) {
        this.doc.transact((tr) => {
          if (clearUndoStack) {
            this.undoStack.forEach((item) => clearUndoManagerStackItem(tr, this, item));
            this.undoStack = [];
          }
          if (clearRedoStack) {
            this.redoStack.forEach((item) => clearUndoManagerStackItem(tr, this, item));
            this.redoStack = [];
          }
          this.emit("stack-cleared", [{ undoStackCleared: clearUndoStack, redoStackCleared: clearRedoStack }]);
        });
      }
    }
    /**
     * UndoManager merges Undo-StackItem if they are created within time-gap
     * smaller than `options.captureTimeout`. Call `um.stopCapturing()` so that the next
     * StackItem won't be merged.
     *
     *
     * @example
     *     // without stopCapturing
     *     ytext.insert(0, 'a')
     *     ytext.insert(1, 'b')
     *     um.undo()
     *     ytext.toString() // => '' (note that 'ab' was removed)
     *     // with stopCapturing
     *     ytext.insert(0, 'a')
     *     um.stopCapturing()
     *     ytext.insert(0, 'b')
     *     um.undo()
     *     ytext.toString() // => 'a' (note that only 'b' was removed)
     *
     */
    stopCapturing() {
      this.lastChange = 0;
    }
    /**
     * Undo last changes on type.
     *
     * @return {StackItem?} Returns StackItem if a change was applied
     */
    undo() {
      this.undoing = true;
      let res;
      try {
        res = popStackItem(this, this.undoStack, "undo");
      } finally {
        this.undoing = false;
      }
      return res;
    }
    /**
     * Redo last undo operation.
     *
     * @return {StackItem?} Returns StackItem if a change was applied
     */
    redo() {
      this.redoing = true;
      let res;
      try {
        res = popStackItem(this, this.redoStack, "redo");
      } finally {
        this.redoing = false;
      }
      return res;
    }
    /**
     * Are undo steps available?
     *
     * @return {boolean} `true` if undo is possible
     */
    canUndo() {
      return this.undoStack.length > 0;
    }
    /**
     * Are redo steps available?
     *
     * @return {boolean} `true` if redo is possible
     */
    canRedo() {
      return this.redoStack.length > 0;
    }
    destroy() {
      this.trackedOrigins.delete(this);
      this.doc.off("afterTransaction", this.afterTransactionHandler);
      super.destroy();
    }
  };
  function* lazyStructReaderGenerator(decoder) {
    const numOfStateUpdates = readVarUint(decoder.restDecoder);
    for (let i = 0; i < numOfStateUpdates; i++) {
      const numberOfStructs = readVarUint(decoder.restDecoder);
      const client = decoder.readClient();
      let clock = readVarUint(decoder.restDecoder);
      for (let i2 = 0; i2 < numberOfStructs; i2++) {
        const info = decoder.readInfo();
        if (info === 10) {
          const len = readVarUint(decoder.restDecoder);
          yield new Skip(createID(client, clock), len);
          clock += len;
        } else if ((BITS5 & info) !== 0) {
          const cantCopyParentInfo = (info & (BIT7 | BIT8)) === 0;
          const struct = new Item(
            createID(client, clock),
            null,
            // left
            (info & BIT8) === BIT8 ? decoder.readLeftID() : null,
            // origin
            null,
            // right
            (info & BIT7) === BIT7 ? decoder.readRightID() : null,
            // right origin
            // @ts-ignore Force writing a string here.
            cantCopyParentInfo ? decoder.readParentInfo() ? decoder.readString() : decoder.readLeftID() : null,
            // parent
            cantCopyParentInfo && (info & BIT6) === BIT6 ? decoder.readString() : null,
            // parentSub
            readItemContent(decoder, info)
            // item content
          );
          yield struct;
          clock += struct.length;
        } else {
          const len = decoder.readLen();
          yield new GC(createID(client, clock), len);
          clock += len;
        }
      }
    }
  }
  var LazyStructReader = class {
    /**
     * @param {UpdateDecoderV1 | UpdateDecoderV2} decoder
     * @param {boolean} filterSkips
     */
    constructor(decoder, filterSkips) {
      this.gen = lazyStructReaderGenerator(decoder);
      this.curr = null;
      this.done = false;
      this.filterSkips = filterSkips;
      this.next();
    }
    /**
     * @return {Item | GC | Skip |null}
     */
    next() {
      do {
        this.curr = this.gen.next().value || null;
      } while (this.filterSkips && this.curr !== null && this.curr.constructor === Skip);
      return this.curr;
    }
  };
  var logUpdate = (update) => logUpdateV2(update, UpdateDecoderV1);
  var logUpdateV2 = (update, YDecoder = UpdateDecoderV2) => {
    const structs = [];
    const updateDecoder = new YDecoder(createDecoder(update));
    const lazyDecoder = new LazyStructReader(updateDecoder, false);
    for (let curr = lazyDecoder.curr; curr !== null; curr = lazyDecoder.next()) {
      structs.push(curr);
    }
    print("Structs: ", structs);
    const ds = readDeleteSet(updateDecoder);
    print("DeleteSet: ", ds);
  };
  var decodeUpdate = (update) => decodeUpdateV2(update, UpdateDecoderV1);
  var decodeUpdateV2 = (update, YDecoder = UpdateDecoderV2) => {
    const structs = [];
    const updateDecoder = new YDecoder(createDecoder(update));
    const lazyDecoder = new LazyStructReader(updateDecoder, false);
    for (let curr = lazyDecoder.curr; curr !== null; curr = lazyDecoder.next()) {
      structs.push(curr);
    }
    return {
      structs,
      ds: readDeleteSet(updateDecoder)
    };
  };
  var LazyStructWriter = class {
    /**
     * @param {UpdateEncoderV1 | UpdateEncoderV2} encoder
     */
    constructor(encoder) {
      this.currClient = 0;
      this.startClock = 0;
      this.written = 0;
      this.encoder = encoder;
      this.clientStructs = [];
    }
  };
  var mergeUpdates = (updates) => mergeUpdatesV2(updates, UpdateDecoderV1, UpdateEncoderV1);
  var encodeStateVectorFromUpdateV2 = (update, YEncoder = DSEncoderV2, YDecoder = UpdateDecoderV2) => {
    const encoder = new YEncoder();
    const updateDecoder = new LazyStructReader(new YDecoder(createDecoder(update)), false);
    let curr = updateDecoder.curr;
    if (curr !== null) {
      let size2 = 0;
      let currClient = curr.id.client;
      let stopCounting = curr.id.clock !== 0;
      let currClock = stopCounting ? 0 : curr.id.clock + curr.length;
      for (; curr !== null; curr = updateDecoder.next()) {
        if (currClient !== curr.id.client) {
          if (currClock !== 0) {
            size2++;
            writeVarUint(encoder.restEncoder, currClient);
            writeVarUint(encoder.restEncoder, currClock);
          }
          currClient = curr.id.client;
          currClock = 0;
          stopCounting = curr.id.clock !== 0;
        }
        if (curr.constructor === Skip) {
          stopCounting = true;
        }
        if (!stopCounting) {
          currClock = curr.id.clock + curr.length;
        }
      }
      if (currClock !== 0) {
        size2++;
        writeVarUint(encoder.restEncoder, currClient);
        writeVarUint(encoder.restEncoder, currClock);
      }
      const enc = createEncoder();
      writeVarUint(enc, size2);
      writeBinaryEncoder(enc, encoder.restEncoder);
      encoder.restEncoder = enc;
      return encoder.toUint8Array();
    } else {
      writeVarUint(encoder.restEncoder, 0);
      return encoder.toUint8Array();
    }
  };
  var encodeStateVectorFromUpdate = (update) => encodeStateVectorFromUpdateV2(update, DSEncoderV1, UpdateDecoderV1);
  var parseUpdateMetaV2 = (update, YDecoder = UpdateDecoderV2) => {
    const from2 = /* @__PURE__ */ new Map();
    const to = /* @__PURE__ */ new Map();
    const updateDecoder = new LazyStructReader(new YDecoder(createDecoder(update)), false);
    let curr = updateDecoder.curr;
    if (curr !== null) {
      let currClient = curr.id.client;
      let currClock = curr.id.clock;
      from2.set(currClient, currClock);
      for (; curr !== null; curr = updateDecoder.next()) {
        if (currClient !== curr.id.client) {
          to.set(currClient, currClock);
          from2.set(curr.id.client, curr.id.clock);
          currClient = curr.id.client;
        }
        currClock = curr.id.clock + curr.length;
      }
      to.set(currClient, currClock);
    }
    return { from: from2, to };
  };
  var parseUpdateMeta = (update) => parseUpdateMetaV2(update, UpdateDecoderV1);
  var sliceStruct = (left, diff) => {
    if (left.constructor === GC) {
      const { client, clock } = left.id;
      return new GC(createID(client, clock + diff), left.length - diff);
    } else if (left.constructor === Skip) {
      const { client, clock } = left.id;
      return new Skip(createID(client, clock + diff), left.length - diff);
    } else {
      const leftItem = (
        /** @type {Item} */
        left
      );
      const { client, clock } = leftItem.id;
      return new Item(
        createID(client, clock + diff),
        null,
        createID(client, clock + diff - 1),
        null,
        leftItem.rightOrigin,
        leftItem.parent,
        leftItem.parentSub,
        leftItem.content.splice(diff)
      );
    }
  };
  var mergeUpdatesV2 = (updates, YDecoder = UpdateDecoderV2, YEncoder = UpdateEncoderV2) => {
    if (updates.length === 1) {
      return updates[0];
    }
    const updateDecoders = updates.map((update) => new YDecoder(createDecoder(update)));
    let lazyStructDecoders = updateDecoders.map((decoder) => new LazyStructReader(decoder, true));
    let currWrite = null;
    const updateEncoder = new YEncoder();
    const lazyStructEncoder = new LazyStructWriter(updateEncoder);
    while (true) {
      lazyStructDecoders = lazyStructDecoders.filter((dec) => dec.curr !== null);
      lazyStructDecoders.sort(
        /** @type {function(any,any):number} */
        (dec1, dec2) => {
          if (dec1.curr.id.client === dec2.curr.id.client) {
            const clockDiff = dec1.curr.id.clock - dec2.curr.id.clock;
            if (clockDiff === 0) {
              return dec1.curr.constructor === dec2.curr.constructor ? 0 : dec1.curr.constructor === Skip ? 1 : -1;
            } else {
              return clockDiff;
            }
          } else {
            return dec2.curr.id.client - dec1.curr.id.client;
          }
        }
      );
      if (lazyStructDecoders.length === 0) {
        break;
      }
      const currDecoder = lazyStructDecoders[0];
      const firstClient = (
        /** @type {Item | GC} */
        currDecoder.curr.id.client
      );
      if (currWrite !== null) {
        let curr = (
          /** @type {Item | GC | null} */
          currDecoder.curr
        );
        let iterated = false;
        while (curr !== null && curr.id.clock + curr.length <= currWrite.struct.id.clock + currWrite.struct.length && curr.id.client >= currWrite.struct.id.client) {
          curr = currDecoder.next();
          iterated = true;
        }
        if (curr === null || // current decoder is empty
        curr.id.client !== firstClient || // check whether there is another decoder that has has updates from `firstClient`
        iterated && curr.id.clock > currWrite.struct.id.clock + currWrite.struct.length) {
          continue;
        }
        if (firstClient !== currWrite.struct.id.client) {
          writeStructToLazyStructWriter(lazyStructEncoder, currWrite.struct, currWrite.offset);
          currWrite = { struct: curr, offset: 0 };
          currDecoder.next();
        } else {
          if (currWrite.struct.id.clock + currWrite.struct.length < curr.id.clock) {
            if (currWrite.struct.constructor === Skip) {
              currWrite.struct.length = curr.id.clock + curr.length - currWrite.struct.id.clock;
            } else {
              writeStructToLazyStructWriter(lazyStructEncoder, currWrite.struct, currWrite.offset);
              const diff = curr.id.clock - currWrite.struct.id.clock - currWrite.struct.length;
              const struct = new Skip(createID(firstClient, currWrite.struct.id.clock + currWrite.struct.length), diff);
              currWrite = { struct, offset: 0 };
            }
          } else {
            const diff = currWrite.struct.id.clock + currWrite.struct.length - curr.id.clock;
            if (diff > 0) {
              if (currWrite.struct.constructor === Skip) {
                currWrite.struct.length -= diff;
              } else {
                curr = sliceStruct(curr, diff);
              }
            }
            if (!currWrite.struct.mergeWith(
              /** @type {any} */
              curr
            )) {
              writeStructToLazyStructWriter(lazyStructEncoder, currWrite.struct, currWrite.offset);
              currWrite = { struct: curr, offset: 0 };
              currDecoder.next();
            }
          }
        }
      } else {
        currWrite = { struct: (
          /** @type {Item | GC} */
          currDecoder.curr
        ), offset: 0 };
        currDecoder.next();
      }
      for (let next = currDecoder.curr; next !== null && next.id.client === firstClient && next.id.clock === currWrite.struct.id.clock + currWrite.struct.length && next.constructor !== Skip; next = currDecoder.next()) {
        writeStructToLazyStructWriter(lazyStructEncoder, currWrite.struct, currWrite.offset);
        currWrite = { struct: next, offset: 0 };
      }
    }
    if (currWrite !== null) {
      writeStructToLazyStructWriter(lazyStructEncoder, currWrite.struct, currWrite.offset);
      currWrite = null;
    }
    finishLazyStructWriting(lazyStructEncoder);
    const dss = updateDecoders.map((decoder) => readDeleteSet(decoder));
    const ds = mergeDeleteSets(dss);
    writeDeleteSet(updateEncoder, ds);
    return updateEncoder.toUint8Array();
  };
  var diffUpdateV2 = (update, sv, YDecoder = UpdateDecoderV2, YEncoder = UpdateEncoderV2) => {
    const state = decodeStateVector(sv);
    const encoder = new YEncoder();
    const lazyStructWriter = new LazyStructWriter(encoder);
    const decoder = new YDecoder(createDecoder(update));
    const reader = new LazyStructReader(decoder, false);
    while (reader.curr) {
      const curr = reader.curr;
      const currClient = curr.id.client;
      const svClock = state.get(currClient) || 0;
      if (reader.curr.constructor === Skip) {
        reader.next();
        continue;
      }
      if (curr.id.clock + curr.length > svClock) {
        writeStructToLazyStructWriter(lazyStructWriter, curr, max(svClock - curr.id.clock, 0));
        reader.next();
        while (reader.curr && reader.curr.id.client === currClient) {
          writeStructToLazyStructWriter(lazyStructWriter, reader.curr, 0);
          reader.next();
        }
      } else {
        while (reader.curr && reader.curr.id.client === currClient && reader.curr.id.clock + reader.curr.length <= svClock) {
          reader.next();
        }
      }
    }
    finishLazyStructWriting(lazyStructWriter);
    const ds = readDeleteSet(decoder);
    writeDeleteSet(encoder, ds);
    return encoder.toUint8Array();
  };
  var diffUpdate = (update, sv) => diffUpdateV2(update, sv, UpdateDecoderV1, UpdateEncoderV1);
  var flushLazyStructWriter = (lazyWriter) => {
    if (lazyWriter.written > 0) {
      lazyWriter.clientStructs.push({ written: lazyWriter.written, restEncoder: toUint8Array(lazyWriter.encoder.restEncoder) });
      lazyWriter.encoder.restEncoder = createEncoder();
      lazyWriter.written = 0;
    }
  };
  var writeStructToLazyStructWriter = (lazyWriter, struct, offset) => {
    if (lazyWriter.written > 0 && lazyWriter.currClient !== struct.id.client) {
      flushLazyStructWriter(lazyWriter);
    }
    if (lazyWriter.written === 0) {
      lazyWriter.currClient = struct.id.client;
      lazyWriter.encoder.writeClient(struct.id.client);
      writeVarUint(lazyWriter.encoder.restEncoder, struct.id.clock + offset);
    }
    struct.write(lazyWriter.encoder, offset);
    lazyWriter.written++;
  };
  var finishLazyStructWriting = (lazyWriter) => {
    flushLazyStructWriter(lazyWriter);
    const restEncoder = lazyWriter.encoder.restEncoder;
    writeVarUint(restEncoder, lazyWriter.clientStructs.length);
    for (let i = 0; i < lazyWriter.clientStructs.length; i++) {
      const partStructs = lazyWriter.clientStructs[i];
      writeVarUint(restEncoder, partStructs.written);
      writeUint8Array(restEncoder, partStructs.restEncoder);
    }
  };
  var convertUpdateFormat = (update, blockTransformer, YDecoder, YEncoder) => {
    const updateDecoder = new YDecoder(createDecoder(update));
    const lazyDecoder = new LazyStructReader(updateDecoder, false);
    const updateEncoder = new YEncoder();
    const lazyWriter = new LazyStructWriter(updateEncoder);
    for (let curr = lazyDecoder.curr; curr !== null; curr = lazyDecoder.next()) {
      writeStructToLazyStructWriter(lazyWriter, blockTransformer(curr), 0);
    }
    finishLazyStructWriting(lazyWriter);
    const ds = readDeleteSet(updateDecoder);
    writeDeleteSet(updateEncoder, ds);
    return updateEncoder.toUint8Array();
  };
  var createObfuscator = ({ formatting = true, subdocs = true, yxml = true } = {}) => {
    let i = 0;
    const mapKeyCache = create();
    const nodeNameCache = create();
    const formattingKeyCache = create();
    const formattingValueCache = create();
    formattingValueCache.set(null, null);
    return (block) => {
      switch (block.constructor) {
        case GC:
        case Skip:
          return block;
        case Item: {
          const item = (
            /** @type {Item} */
            block
          );
          const content = item.content;
          switch (content.constructor) {
            case ContentDeleted:
              break;
            case ContentType: {
              if (yxml) {
                const type = (
                  /** @type {ContentType} */
                  content.type
                );
                if (type instanceof YXmlElement) {
                  type.nodeName = setIfUndefined(nodeNameCache, type.nodeName, () => "node-" + i);
                }
                if (type instanceof YXmlHook) {
                  type.hookName = setIfUndefined(nodeNameCache, type.hookName, () => "hook-" + i);
                }
              }
              break;
            }
            case ContentAny: {
              const c = (
                /** @type {ContentAny} */
                content
              );
              c.arr = c.arr.map(() => i);
              break;
            }
            case ContentBinary: {
              const c = (
                /** @type {ContentBinary} */
                content
              );
              c.content = new Uint8Array([i]);
              break;
            }
            case ContentDoc: {
              const c = (
                /** @type {ContentDoc} */
                content
              );
              if (subdocs) {
                c.opts = {};
                c.doc.guid = i + "";
              }
              break;
            }
            case ContentEmbed: {
              const c = (
                /** @type {ContentEmbed} */
                content
              );
              c.embed = {};
              break;
            }
            case ContentFormat: {
              const c = (
                /** @type {ContentFormat} */
                content
              );
              if (formatting) {
                c.key = setIfUndefined(formattingKeyCache, c.key, () => i + "");
                c.value = setIfUndefined(formattingValueCache, c.value, () => ({ i }));
              }
              break;
            }
            case ContentJSON: {
              const c = (
                /** @type {ContentJSON} */
                content
              );
              c.arr = c.arr.map(() => i);
              break;
            }
            case ContentString: {
              const c = (
                /** @type {ContentString} */
                content
              );
              c.str = repeat(i % 10 + "", c.str.length);
              break;
            }
            default:
              unexpectedCase();
          }
          if (item.parentSub) {
            item.parentSub = setIfUndefined(mapKeyCache, item.parentSub, () => i + "");
          }
          i++;
          return block;
        }
        default:
          unexpectedCase();
      }
    };
  };
  var obfuscateUpdate = (update, opts) => convertUpdateFormat(update, createObfuscator(opts), UpdateDecoderV1, UpdateEncoderV1);
  var obfuscateUpdateV2 = (update, opts) => convertUpdateFormat(update, createObfuscator(opts), UpdateDecoderV2, UpdateEncoderV2);
  var convertUpdateFormatV1ToV2 = (update) => convertUpdateFormat(update, id, UpdateDecoderV1, UpdateEncoderV2);
  var convertUpdateFormatV2ToV1 = (update) => convertUpdateFormat(update, id, UpdateDecoderV2, UpdateEncoderV1);
  var errorComputeChanges = "You must not compute changes after the event-handler fired.";
  var YEvent = class {
    /**
     * @param {T} target The changed type.
     * @param {Transaction} transaction
     */
    constructor(target, transaction) {
      this.target = target;
      this.currentTarget = target;
      this.transaction = transaction;
      this._changes = null;
      this._keys = null;
      this._delta = null;
      this._path = null;
    }
    /**
     * Computes the path from `y` to the changed type.
     *
     * @todo v14 should standardize on path: Array<{parent, index}> because that is easier to work with.
     *
     * The following property holds:
     * @example
     *   let type = y
     *   event.path.forEach(dir => {
     *     type = type.get(dir)
     *   })
     *   type === event.target // => true
     */
    get path() {
      return this._path || (this._path = getPathTo(this.currentTarget, this.target));
    }
    /**
     * Check if a struct is deleted by this event.
     *
     * In contrast to change.deleted, this method also returns true if the struct was added and then deleted.
     *
     * @param {AbstractStruct} struct
     * @return {boolean}
     */
    deletes(struct) {
      return isDeleted(this.transaction.deleteSet, struct.id);
    }
    /**
     * @type {Map<string, { action: 'add' | 'update' | 'delete', oldValue: any }>}
     */
    get keys() {
      if (this._keys === null) {
        if (this.transaction.doc._transactionCleanups.length === 0) {
          throw create3(errorComputeChanges);
        }
        const keys2 = /* @__PURE__ */ new Map();
        const target = this.target;
        const changed = (
          /** @type Set<string|null> */
          this.transaction.changed.get(target)
        );
        changed.forEach((key) => {
          if (key !== null) {
            const item = (
              /** @type {Item} */
              target._map.get(key)
            );
            let action;
            let oldValue;
            if (this.adds(item)) {
              let prev = item.left;
              while (prev !== null && this.adds(prev)) {
                prev = prev.left;
              }
              if (this.deletes(item)) {
                if (prev !== null && this.deletes(prev)) {
                  action = "delete";
                  oldValue = last(prev.content.getContent());
                } else {
                  return;
                }
              } else {
                if (prev !== null && this.deletes(prev)) {
                  action = "update";
                  oldValue = last(prev.content.getContent());
                } else {
                  action = "add";
                  oldValue = void 0;
                }
              }
            } else {
              if (this.deletes(item)) {
                action = "delete";
                oldValue = last(
                  /** @type {Item} */
                  item.content.getContent()
                );
              } else {
                return;
              }
            }
            keys2.set(key, { action, oldValue });
          }
        });
        this._keys = keys2;
      }
      return this._keys;
    }
    /**
     * This is a computed property. Note that this can only be safely computed during the
     * event call. Computing this property after other changes happened might result in
     * unexpected behavior (incorrect computation of deltas). A safe way to collect changes
     * is to store the `changes` or the `delta` object. Avoid storing the `transaction` object.
     *
     * @type {Array<{insert?: string | Array<any> | object | AbstractType<any>, retain?: number, delete?: number, attributes?: Object<string, any>}>}
     */
    get delta() {
      return this.changes.delta;
    }
    /**
     * Check if a struct is added by this event.
     *
     * In contrast to change.deleted, this method also returns true if the struct was added and then deleted.
     *
     * @param {AbstractStruct} struct
     * @return {boolean}
     */
    adds(struct) {
      return struct.id.clock >= (this.transaction.beforeState.get(struct.id.client) || 0);
    }
    /**
     * This is a computed property. Note that this can only be safely computed during the
     * event call. Computing this property after other changes happened might result in
     * unexpected behavior (incorrect computation of deltas). A safe way to collect changes
     * is to store the `changes` or the `delta` object. Avoid storing the `transaction` object.
     *
     * @type {{added:Set<Item>,deleted:Set<Item>,keys:Map<string,{action:'add'|'update'|'delete',oldValue:any}>,delta:Array<{insert?:Array<any>|string, delete?:number, retain?:number}>}}
     */
    get changes() {
      let changes = this._changes;
      if (changes === null) {
        if (this.transaction.doc._transactionCleanups.length === 0) {
          throw create3(errorComputeChanges);
        }
        const target = this.target;
        const added = create2();
        const deleted = create2();
        const delta = [];
        changes = {
          added,
          deleted,
          delta,
          keys: this.keys
        };
        const changed = (
          /** @type Set<string|null> */
          this.transaction.changed.get(target)
        );
        if (changed.has(null)) {
          let lastOp = null;
          const packOp = () => {
            if (lastOp) {
              delta.push(lastOp);
            }
          };
          for (let item = target._start; item !== null; item = item.right) {
            if (item.deleted) {
              if (this.deletes(item) && !this.adds(item)) {
                if (lastOp === null || lastOp.delete === void 0) {
                  packOp();
                  lastOp = { delete: 0 };
                }
                lastOp.delete += item.length;
                deleted.add(item);
              }
            } else {
              if (this.adds(item)) {
                if (lastOp === null || lastOp.insert === void 0) {
                  packOp();
                  lastOp = { insert: [] };
                }
                lastOp.insert = lastOp.insert.concat(item.content.getContent());
                added.add(item);
              } else {
                if (lastOp === null || lastOp.retain === void 0) {
                  packOp();
                  lastOp = { retain: 0 };
                }
                lastOp.retain += item.length;
              }
            }
          }
          if (lastOp !== null && lastOp.retain === void 0) {
            packOp();
          }
        }
        this._changes = changes;
      }
      return (
        /** @type {any} */
        changes
      );
    }
  };
  var getPathTo = (parent, child) => {
    const path = [];
    while (child._item !== null && child !== parent) {
      if (child._item.parentSub !== null) {
        path.unshift(child._item.parentSub);
      } else {
        let i = 0;
        let c = (
          /** @type {AbstractType<any>} */
          child._item.parent._start
        );
        while (c !== child._item && c !== null) {
          if (!c.deleted && c.countable) {
            i += c.length;
          }
          c = c.right;
        }
        path.unshift(i);
      }
      child = /** @type {AbstractType<any>} */
      child._item.parent;
    }
    return path;
  };
  var warnPrematureAccess = () => {
    warn("Invalid access: Add Yjs type to a document before reading data.");
  };
  var maxSearchMarker = 80;
  var globalSearchMarkerTimestamp = 0;
  var ArraySearchMarker = class {
    /**
     * @param {Item} p
     * @param {number} index
     */
    constructor(p, index) {
      p.marker = true;
      this.p = p;
      this.index = index;
      this.timestamp = globalSearchMarkerTimestamp++;
    }
  };
  var refreshMarkerTimestamp = (marker) => {
    marker.timestamp = globalSearchMarkerTimestamp++;
  };
  var overwriteMarker = (marker, p, index) => {
    marker.p.marker = false;
    marker.p = p;
    p.marker = true;
    marker.index = index;
    marker.timestamp = globalSearchMarkerTimestamp++;
  };
  var markPosition = (searchMarker, p, index) => {
    if (searchMarker.length >= maxSearchMarker) {
      const marker = searchMarker.reduce((a, b) => a.timestamp < b.timestamp ? a : b);
      overwriteMarker(marker, p, index);
      return marker;
    } else {
      const pm = new ArraySearchMarker(p, index);
      searchMarker.push(pm);
      return pm;
    }
  };
  var findMarker = (yarray, index) => {
    if (yarray._start === null || index === 0 || yarray._searchMarker === null) {
      return null;
    }
    const marker = yarray._searchMarker.length === 0 ? null : yarray._searchMarker.reduce((a, b) => abs(index - a.index) < abs(index - b.index) ? a : b);
    let p = yarray._start;
    let pindex = 0;
    if (marker !== null) {
      p = marker.p;
      pindex = marker.index;
      refreshMarkerTimestamp(marker);
    }
    while (p.right !== null && pindex < index) {
      if (!p.deleted && p.countable) {
        if (index < pindex + p.length) {
          break;
        }
        pindex += p.length;
      }
      p = p.right;
    }
    while (p.left !== null && pindex > index) {
      p = p.left;
      if (!p.deleted && p.countable) {
        pindex -= p.length;
      }
    }
    while (p.left !== null && p.left.id.client === p.id.client && p.left.id.clock + p.left.length === p.id.clock) {
      p = p.left;
      if (!p.deleted && p.countable) {
        pindex -= p.length;
      }
    }
    if (marker !== null && abs(marker.index - pindex) < /** @type {YText|YArray<any>} */
    p.parent.length / maxSearchMarker) {
      overwriteMarker(marker, p, pindex);
      return marker;
    } else {
      return markPosition(yarray._searchMarker, p, pindex);
    }
  };
  var updateMarkerChanges = (searchMarker, index, len) => {
    for (let i = searchMarker.length - 1; i >= 0; i--) {
      const m = searchMarker[i];
      if (len > 0) {
        let p = m.p;
        p.marker = false;
        while (p && (p.deleted || !p.countable)) {
          p = p.left;
          if (p && !p.deleted && p.countable) {
            m.index -= p.length;
          }
        }
        if (p === null || p.marker === true) {
          searchMarker.splice(i, 1);
          continue;
        }
        m.p = p;
        p.marker = true;
      }
      if (index < m.index || len > 0 && index === m.index) {
        m.index = max(index, m.index + len);
      }
    }
  };
  var getTypeChildren = (t) => {
    t.doc ?? warnPrematureAccess();
    let s = t._start;
    const arr = [];
    while (s) {
      arr.push(s);
      s = s.right;
    }
    return arr;
  };
  var callTypeObservers = (type, transaction, event) => {
    const changedType = type;
    const changedParentTypes = transaction.changedParentTypes;
    while (true) {
      setIfUndefined(changedParentTypes, type, () => []).push(event);
      if (type._item === null) {
        break;
      }
      type = /** @type {AbstractType<any>} */
      type._item.parent;
    }
    callEventHandlerListeners(changedType._eH, event, transaction);
  };
  var AbstractType = class {
    constructor() {
      this._item = null;
      this._map = /* @__PURE__ */ new Map();
      this._start = null;
      this.doc = null;
      this._length = 0;
      this._eH = createEventHandler();
      this._dEH = createEventHandler();
      this._searchMarker = null;
    }
    /**
     * @return {AbstractType<any>|null}
     */
    get parent() {
      return this._item ? (
        /** @type {AbstractType<any>} */
        this._item.parent
      ) : null;
    }
    /**
     * Integrate this type into the Yjs instance.
     *
     * * Save this struct in the os
     * * This type is sent to other client
     * * Observer functions are fired
     *
     * @param {Doc} y The Yjs instance
     * @param {Item|null} item
     */
    _integrate(y, item) {
      this.doc = y;
      this._item = item;
    }
    /**
     * @return {AbstractType<EventType>}
     */
    _copy() {
      throw methodUnimplemented();
    }
    /**
     * Makes a copy of this data type that can be included somewhere else.
     *
     * Note that the content is only readable _after_ it has been included somewhere in the Ydoc.
     *
     * @return {AbstractType<EventType>}
     */
    clone() {
      throw methodUnimplemented();
    }
    /**
     * @param {UpdateEncoderV1 | UpdateEncoderV2} _encoder
     */
    _write(_encoder) {
    }
    /**
     * The first non-deleted item
     */
    get _first() {
      let n = this._start;
      while (n !== null && n.deleted) {
        n = n.right;
      }
      return n;
    }
    /**
     * Creates YEvent and calls all type observers.
     * Must be implemented by each type.
     *
     * @param {Transaction} transaction
     * @param {Set<null|string>} _parentSubs Keys changed on this type. `null` if list was modified.
     */
    _callObserver(transaction, _parentSubs) {
      if (!transaction.local && this._searchMarker) {
        this._searchMarker.length = 0;
      }
    }
    /**
     * Observe all events that are created on this type.
     *
     * @param {function(EventType, Transaction):void} f Observer function
     */
    observe(f) {
      addEventHandlerListener(this._eH, f);
    }
    /**
     * Observe all events that are created by this type and its children.
     *
     * @param {function(Array<YEvent<any>>,Transaction):void} f Observer function
     */
    observeDeep(f) {
      addEventHandlerListener(this._dEH, f);
    }
    /**
     * Unregister an observer function.
     *
     * @param {function(EventType,Transaction):void} f Observer function
     */
    unobserve(f) {
      removeEventHandlerListener(this._eH, f);
    }
    /**
     * Unregister an observer function.
     *
     * @param {function(Array<YEvent<any>>,Transaction):void} f Observer function
     */
    unobserveDeep(f) {
      removeEventHandlerListener(this._dEH, f);
    }
    /**
     * @abstract
     * @return {any}
     */
    toJSON() {
    }
  };
  var typeListSlice = (type, start, end) => {
    type.doc ?? warnPrematureAccess();
    if (start < 0) {
      start = type._length + start;
    }
    if (end < 0) {
      end = type._length + end;
    }
    let len = end - start;
    const cs = [];
    let n = type._start;
    while (n !== null && len > 0) {
      if (n.countable && !n.deleted) {
        const c = n.content.getContent();
        if (c.length <= start) {
          start -= c.length;
        } else {
          for (let i = start; i < c.length && len > 0; i++) {
            cs.push(c[i]);
            len--;
          }
          start = 0;
        }
      }
      n = n.right;
    }
    return cs;
  };
  var typeListToArray = (type) => {
    type.doc ?? warnPrematureAccess();
    const cs = [];
    let n = type._start;
    while (n !== null) {
      if (n.countable && !n.deleted) {
        const c = n.content.getContent();
        for (let i = 0; i < c.length; i++) {
          cs.push(c[i]);
        }
      }
      n = n.right;
    }
    return cs;
  };
  var typeListToArraySnapshot = (type, snapshot2) => {
    const cs = [];
    let n = type._start;
    while (n !== null) {
      if (n.countable && isVisible(n, snapshot2)) {
        const c = n.content.getContent();
        for (let i = 0; i < c.length; i++) {
          cs.push(c[i]);
        }
      }
      n = n.right;
    }
    return cs;
  };
  var typeListForEach = (type, f) => {
    let index = 0;
    let n = type._start;
    type.doc ?? warnPrematureAccess();
    while (n !== null) {
      if (n.countable && !n.deleted) {
        const c = n.content.getContent();
        for (let i = 0; i < c.length; i++) {
          f(c[i], index++, type);
        }
      }
      n = n.right;
    }
  };
  var typeListMap = (type, f) => {
    const result = [];
    typeListForEach(type, (c, i) => {
      result.push(f(c, i, type));
    });
    return result;
  };
  var typeListCreateIterator = (type) => {
    let n = type._start;
    let currentContent = null;
    let currentContentIndex = 0;
    return {
      [Symbol.iterator]() {
        return this;
      },
      next: () => {
        if (currentContent === null) {
          while (n !== null && n.deleted) {
            n = n.right;
          }
          if (n === null) {
            return {
              done: true,
              value: void 0
            };
          }
          currentContent = n.content.getContent();
          currentContentIndex = 0;
          n = n.right;
        }
        const value = currentContent[currentContentIndex++];
        if (currentContent.length <= currentContentIndex) {
          currentContent = null;
        }
        return {
          done: false,
          value
        };
      }
    };
  };
  var typeListGet = (type, index) => {
    type.doc ?? warnPrematureAccess();
    const marker = findMarker(type, index);
    let n = type._start;
    if (marker !== null) {
      n = marker.p;
      index -= marker.index;
    }
    for (; n !== null; n = n.right) {
      if (!n.deleted && n.countable) {
        if (index < n.length) {
          return n.content.getContent()[index];
        }
        index -= n.length;
      }
    }
  };
  var typeListInsertGenericsAfter = (transaction, parent, referenceItem, content) => {
    let left = referenceItem;
    const doc2 = transaction.doc;
    const ownClientId = doc2.clientID;
    const store = doc2.store;
    const right = referenceItem === null ? parent._start : referenceItem.right;
    let jsonContent = [];
    const packJsonContent = () => {
      if (jsonContent.length > 0) {
        left = new Item(createID(ownClientId, getState(store, ownClientId)), left, left && left.lastId, right, right && right.id, parent, null, new ContentAny(jsonContent));
        left.integrate(transaction, 0);
        jsonContent = [];
      }
    };
    content.forEach((c) => {
      if (c === null) {
        jsonContent.push(c);
      } else {
        switch (c.constructor) {
          case Number:
          case Object:
          case Boolean:
          case Array:
          case String:
            jsonContent.push(c);
            break;
          default:
            packJsonContent();
            switch (c.constructor) {
              case Uint8Array:
              case ArrayBuffer:
                left = new Item(createID(ownClientId, getState(store, ownClientId)), left, left && left.lastId, right, right && right.id, parent, null, new ContentBinary(new Uint8Array(
                  /** @type {Uint8Array} */
                  c
                )));
                left.integrate(transaction, 0);
                break;
              case Doc:
                left = new Item(createID(ownClientId, getState(store, ownClientId)), left, left && left.lastId, right, right && right.id, parent, null, new ContentDoc(
                  /** @type {Doc} */
                  c
                ));
                left.integrate(transaction, 0);
                break;
              default:
                if (c instanceof AbstractType) {
                  left = new Item(createID(ownClientId, getState(store, ownClientId)), left, left && left.lastId, right, right && right.id, parent, null, new ContentType(c));
                  left.integrate(transaction, 0);
                } else {
                  throw new Error("Unexpected content type in insert operation");
                }
            }
        }
      }
    });
    packJsonContent();
  };
  var lengthExceeded = () => create3("Length exceeded!");
  var typeListInsertGenerics = (transaction, parent, index, content) => {
    if (index > parent._length) {
      throw lengthExceeded();
    }
    if (index === 0) {
      if (parent._searchMarker) {
        updateMarkerChanges(parent._searchMarker, index, content.length);
      }
      return typeListInsertGenericsAfter(transaction, parent, null, content);
    }
    const startIndex = index;
    const marker = findMarker(parent, index);
    let n = parent._start;
    if (marker !== null) {
      n = marker.p;
      index -= marker.index;
      if (index === 0) {
        n = n.prev;
        index += n && n.countable && !n.deleted ? n.length : 0;
      }
    }
    for (; n !== null; n = n.right) {
      if (!n.deleted && n.countable) {
        if (index <= n.length) {
          if (index < n.length) {
            getItemCleanStart(transaction, createID(n.id.client, n.id.clock + index));
          }
          break;
        }
        index -= n.length;
      }
    }
    if (parent._searchMarker) {
      updateMarkerChanges(parent._searchMarker, startIndex, content.length);
    }
    return typeListInsertGenericsAfter(transaction, parent, n, content);
  };
  var typeListPushGenerics = (transaction, parent, content) => {
    const marker = (parent._searchMarker || []).reduce((maxMarker, currMarker) => currMarker.index > maxMarker.index ? currMarker : maxMarker, { index: 0, p: parent._start });
    let n = marker.p;
    if (n) {
      while (n.right) {
        n = n.right;
      }
    }
    return typeListInsertGenericsAfter(transaction, parent, n, content);
  };
  var typeListDelete = (transaction, parent, index, length3) => {
    if (length3 === 0) {
      return;
    }
    const startIndex = index;
    const startLength = length3;
    const marker = findMarker(parent, index);
    let n = parent._start;
    if (marker !== null) {
      n = marker.p;
      index -= marker.index;
    }
    for (; n !== null && index > 0; n = n.right) {
      if (!n.deleted && n.countable) {
        if (index < n.length) {
          getItemCleanStart(transaction, createID(n.id.client, n.id.clock + index));
        }
        index -= n.length;
      }
    }
    while (length3 > 0 && n !== null) {
      if (!n.deleted) {
        if (length3 < n.length) {
          getItemCleanStart(transaction, createID(n.id.client, n.id.clock + length3));
        }
        n.delete(transaction);
        length3 -= n.length;
      }
      n = n.right;
    }
    if (length3 > 0) {
      throw lengthExceeded();
    }
    if (parent._searchMarker) {
      updateMarkerChanges(
        parent._searchMarker,
        startIndex,
        -startLength + length3
        /* in case we remove the above exception */
      );
    }
  };
  var typeMapDelete = (transaction, parent, key) => {
    const c = parent._map.get(key);
    if (c !== void 0) {
      c.delete(transaction);
    }
  };
  var typeMapSet = (transaction, parent, key, value) => {
    const left = parent._map.get(key) || null;
    const doc2 = transaction.doc;
    const ownClientId = doc2.clientID;
    let content;
    if (value == null) {
      content = new ContentAny([value]);
    } else {
      switch (value.constructor) {
        case Number:
        case Object:
        case Boolean:
        case Array:
        case String:
        case Date:
        case BigInt:
          content = new ContentAny([value]);
          break;
        case Uint8Array:
          content = new ContentBinary(
            /** @type {Uint8Array} */
            value
          );
          break;
        case Doc:
          content = new ContentDoc(
            /** @type {Doc} */
            value
          );
          break;
        default:
          if (value instanceof AbstractType) {
            content = new ContentType(value);
          } else {
            throw new Error("Unexpected content type");
          }
      }
    }
    new Item(createID(ownClientId, getState(doc2.store, ownClientId)), left, left && left.lastId, null, null, parent, key, content).integrate(transaction, 0);
  };
  var typeMapGet = (parent, key) => {
    parent.doc ?? warnPrematureAccess();
    const val = parent._map.get(key);
    return val !== void 0 && !val.deleted ? val.content.getContent()[val.length - 1] : void 0;
  };
  var typeMapGetAll = (parent) => {
    const res = {};
    parent.doc ?? warnPrematureAccess();
    parent._map.forEach((value, key) => {
      if (!value.deleted) {
        res[key] = value.content.getContent()[value.length - 1];
      }
    });
    return res;
  };
  var typeMapHas = (parent, key) => {
    parent.doc ?? warnPrematureAccess();
    const val = parent._map.get(key);
    return val !== void 0 && !val.deleted;
  };
  var typeMapGetSnapshot = (parent, key, snapshot2) => {
    let v = parent._map.get(key) || null;
    while (v !== null && (!snapshot2.sv.has(v.id.client) || v.id.clock >= (snapshot2.sv.get(v.id.client) || 0))) {
      v = v.left;
    }
    return v !== null && isVisible(v, snapshot2) ? v.content.getContent()[v.length - 1] : void 0;
  };
  var typeMapGetAllSnapshot = (parent, snapshot2) => {
    const res = {};
    parent._map.forEach((value, key) => {
      let v = value;
      while (v !== null && (!snapshot2.sv.has(v.id.client) || v.id.clock >= (snapshot2.sv.get(v.id.client) || 0))) {
        v = v.left;
      }
      if (v !== null && isVisible(v, snapshot2)) {
        res[key] = v.content.getContent()[v.length - 1];
      }
    });
    return res;
  };
  var createMapIterator = (type) => {
    type.doc ?? warnPrematureAccess();
    return iteratorFilter(
      type._map.entries(),
      /** @param {any} entry */
      (entry) => !entry[1].deleted
    );
  };
  var YArrayEvent = class extends YEvent {
  };
  var YArray = class _YArray extends AbstractType {
    constructor() {
      super();
      this._prelimContent = [];
      this._searchMarker = [];
    }
    /**
     * Construct a new YArray containing the specified items.
     * @template {Object<string,any>|Array<any>|number|null|string|Uint8Array} T
     * @param {Array<T>} items
     * @return {YArray<T>}
     */
    static from(items) {
      const a = new _YArray();
      a.push(items);
      return a;
    }
    /**
     * Integrate this type into the Yjs instance.
     *
     * * Save this struct in the os
     * * This type is sent to other client
     * * Observer functions are fired
     *
     * @param {Doc} y The Yjs instance
     * @param {Item} item
     */
    _integrate(y, item) {
      super._integrate(y, item);
      this.insert(
        0,
        /** @type {Array<any>} */
        this._prelimContent
      );
      this._prelimContent = null;
    }
    /**
     * @return {YArray<T>}
     */
    _copy() {
      return new _YArray();
    }
    /**
     * Makes a copy of this data type that can be included somewhere else.
     *
     * Note that the content is only readable _after_ it has been included somewhere in the Ydoc.
     *
     * @return {YArray<T>}
     */
    clone() {
      const arr = new _YArray();
      arr.insert(0, this.toArray().map(
        (el) => el instanceof AbstractType ? (
          /** @type {typeof el} */
          el.clone()
        ) : el
      ));
      return arr;
    }
    get length() {
      this.doc ?? warnPrematureAccess();
      return this._length;
    }
    /**
     * Creates YArrayEvent and calls observers.
     *
     * @param {Transaction} transaction
     * @param {Set<null|string>} parentSubs Keys changed on this type. `null` if list was modified.
     */
    _callObserver(transaction, parentSubs) {
      super._callObserver(transaction, parentSubs);
      callTypeObservers(this, transaction, new YArrayEvent(this, transaction));
    }
    /**
     * Inserts new content at an index.
     *
     * Important: This function expects an array of content. Not just a content
     * object. The reason for this "weirdness" is that inserting several elements
     * is very efficient when it is done as a single operation.
     *
     * @example
     *  // Insert character 'a' at position 0
     *  yarray.insert(0, ['a'])
     *  // Insert numbers 1, 2 at position 1
     *  yarray.insert(1, [1, 2])
     *
     * @param {number} index The index to insert content at.
     * @param {Array<T>} content The array of content
     */
    insert(index, content) {
      if (this.doc !== null) {
        transact(this.doc, (transaction) => {
          typeListInsertGenerics(
            transaction,
            this,
            index,
            /** @type {any} */
            content
          );
        });
      } else {
        this._prelimContent.splice(index, 0, ...content);
      }
    }
    /**
     * Appends content to this YArray.
     *
     * @param {Array<T>} content Array of content to append.
     *
     * @todo Use the following implementation in all types.
     */
    push(content) {
      if (this.doc !== null) {
        transact(this.doc, (transaction) => {
          typeListPushGenerics(
            transaction,
            this,
            /** @type {any} */
            content
          );
        });
      } else {
        this._prelimContent.push(...content);
      }
    }
    /**
     * Prepends content to this YArray.
     *
     * @param {Array<T>} content Array of content to prepend.
     */
    unshift(content) {
      this.insert(0, content);
    }
    /**
     * Deletes elements starting from an index.
     *
     * @param {number} index Index at which to start deleting elements
     * @param {number} length The number of elements to remove. Defaults to 1.
     */
    delete(index, length3 = 1) {
      if (this.doc !== null) {
        transact(this.doc, (transaction) => {
          typeListDelete(transaction, this, index, length3);
        });
      } else {
        this._prelimContent.splice(index, length3);
      }
    }
    /**
     * Returns the i-th element from a YArray.
     *
     * @param {number} index The index of the element to return from the YArray
     * @return {T}
     */
    get(index) {
      return typeListGet(this, index);
    }
    /**
     * Transforms this YArray to a JavaScript Array.
     *
     * @return {Array<T>}
     */
    toArray() {
      return typeListToArray(this);
    }
    /**
     * Returns a portion of this YArray into a JavaScript Array selected
     * from start to end (end not included).
     *
     * @param {number} [start]
     * @param {number} [end]
     * @return {Array<T>}
     */
    slice(start = 0, end = this.length) {
      return typeListSlice(this, start, end);
    }
    /**
     * Transforms this Shared Type to a JSON object.
     *
     * @return {Array<any>}
     */
    toJSON() {
      return this.map((c) => c instanceof AbstractType ? c.toJSON() : c);
    }
    /**
     * Returns an Array with the result of calling a provided function on every
     * element of this YArray.
     *
     * @template M
     * @param {function(T,number,YArray<T>):M} f Function that produces an element of the new Array
     * @return {Array<M>} A new array with each element being the result of the
     *                 callback function
     */
    map(f) {
      return typeListMap(
        this,
        /** @type {any} */
        f
      );
    }
    /**
     * Executes a provided function once on every element of this YArray.
     *
     * @param {function(T,number,YArray<T>):void} f A function to execute on every element of this YArray.
     */
    forEach(f) {
      typeListForEach(this, f);
    }
    /**
     * @return {IterableIterator<T>}
     */
    [Symbol.iterator]() {
      return typeListCreateIterator(this);
    }
    /**
     * @param {UpdateEncoderV1 | UpdateEncoderV2} encoder
     */
    _write(encoder) {
      encoder.writeTypeRef(YArrayRefID);
    }
  };
  var readYArray = (_decoder) => new YArray();
  var YMapEvent = class extends YEvent {
    /**
     * @param {YMap<T>} ymap The YArray that changed.
     * @param {Transaction} transaction
     * @param {Set<any>} subs The keys that changed.
     */
    constructor(ymap, transaction, subs) {
      super(ymap, transaction);
      this.keysChanged = subs;
    }
  };
  var YMap = class _YMap extends AbstractType {
    /**
     *
     * @param {Iterable<readonly [string, any]>=} entries - an optional iterable to initialize the YMap
     */
    constructor(entries) {
      super();
      this._prelimContent = null;
      if (entries === void 0) {
        this._prelimContent = /* @__PURE__ */ new Map();
      } else {
        this._prelimContent = new Map(entries);
      }
    }
    /**
     * Integrate this type into the Yjs instance.
     *
     * * Save this struct in the os
     * * This type is sent to other client
     * * Observer functions are fired
     *
     * @param {Doc} y The Yjs instance
     * @param {Item} item
     */
    _integrate(y, item) {
      super._integrate(y, item);
      this._prelimContent.forEach((value, key) => {
        this.set(key, value);
      });
      this._prelimContent = null;
    }
    /**
     * @return {YMap<MapType>}
     */
    _copy() {
      return new _YMap();
    }
    /**
     * Makes a copy of this data type that can be included somewhere else.
     *
     * Note that the content is only readable _after_ it has been included somewhere in the Ydoc.
     *
     * @return {YMap<MapType>}
     */
    clone() {
      const map2 = new _YMap();
      this.forEach((value, key) => {
        map2.set(key, value instanceof AbstractType ? (
          /** @type {typeof value} */
          value.clone()
        ) : value);
      });
      return map2;
    }
    /**
     * Creates YMapEvent and calls observers.
     *
     * @param {Transaction} transaction
     * @param {Set<null|string>} parentSubs Keys changed on this type. `null` if list was modified.
     */
    _callObserver(transaction, parentSubs) {
      callTypeObservers(this, transaction, new YMapEvent(this, transaction, parentSubs));
    }
    /**
     * Transforms this Shared Type to a JSON object.
     *
     * @return {Object<string,any>}
     */
    toJSON() {
      this.doc ?? warnPrematureAccess();
      const map2 = {};
      this._map.forEach((item, key) => {
        if (!item.deleted) {
          const v = item.content.getContent()[item.length - 1];
          map2[key] = v instanceof AbstractType ? v.toJSON() : v;
        }
      });
      return map2;
    }
    /**
     * Returns the size of the YMap (count of key/value pairs)
     *
     * @return {number}
     */
    get size() {
      return [...createMapIterator(this)].length;
    }
    /**
     * Returns the keys for each element in the YMap Type.
     *
     * @return {IterableIterator<string>}
     */
    keys() {
      return iteratorMap(
        createMapIterator(this),
        /** @param {any} v */
        (v) => v[0]
      );
    }
    /**
     * Returns the values for each element in the YMap Type.
     *
     * @return {IterableIterator<MapType>}
     */
    values() {
      return iteratorMap(
        createMapIterator(this),
        /** @param {any} v */
        (v) => v[1].content.getContent()[v[1].length - 1]
      );
    }
    /**
     * Returns an Iterator of [key, value] pairs
     *
     * @return {IterableIterator<[string, MapType]>}
     */
    entries() {
      return iteratorMap(
        createMapIterator(this),
        /** @param {any} v */
        (v) => (
          /** @type {any} */
          [v[0], v[1].content.getContent()[v[1].length - 1]]
        )
      );
    }
    /**
     * Executes a provided function on once on every key-value pair.
     *
     * @param {function(MapType,string,YMap<MapType>):void} f A function to execute on every element of this YArray.
     */
    forEach(f) {
      this.doc ?? warnPrematureAccess();
      this._map.forEach((item, key) => {
        if (!item.deleted) {
          f(item.content.getContent()[item.length - 1], key, this);
        }
      });
    }
    /**
     * Returns an Iterator of [key, value] pairs
     *
     * @return {IterableIterator<[string, MapType]>}
     */
    [Symbol.iterator]() {
      return this.entries();
    }
    /**
     * Remove a specified element from this YMap.
     *
     * @param {string} key The key of the element to remove.
     */
    delete(key) {
      if (this.doc !== null) {
        transact(this.doc, (transaction) => {
          typeMapDelete(transaction, this, key);
        });
      } else {
        this._prelimContent.delete(key);
      }
    }
    /**
     * Adds or updates an element with a specified key and value.
     * @template {MapType} VAL
     *
     * @param {string} key The key of the element to add to this YMap
     * @param {VAL} value The value of the element to add
     * @return {VAL}
     */
    set(key, value) {
      if (this.doc !== null) {
        transact(this.doc, (transaction) => {
          typeMapSet(
            transaction,
            this,
            key,
            /** @type {any} */
            value
          );
        });
      } else {
        this._prelimContent.set(key, value);
      }
      return value;
    }
    /**
     * Returns a specified element from this YMap.
     *
     * @param {string} key
     * @return {MapType|undefined}
     */
    get(key) {
      return (
        /** @type {any} */
        typeMapGet(this, key)
      );
    }
    /**
     * Returns a boolean indicating whether the specified key exists or not.
     *
     * @param {string} key The key to test.
     * @return {boolean}
     */
    has(key) {
      return typeMapHas(this, key);
    }
    /**
     * Removes all elements from this YMap.
     */
    clear() {
      if (this.doc !== null) {
        transact(this.doc, (transaction) => {
          this.forEach(function(_value, key, map2) {
            typeMapDelete(transaction, map2, key);
          });
        });
      } else {
        this._prelimContent.clear();
      }
    }
    /**
     * @param {UpdateEncoderV1 | UpdateEncoderV2} encoder
     */
    _write(encoder) {
      encoder.writeTypeRef(YMapRefID);
    }
  };
  var readYMap = (_decoder) => new YMap();
  var equalAttrs = (a, b) => a === b || typeof a === "object" && typeof b === "object" && a && b && equalFlat(a, b);
  var ItemTextListPosition = class {
    /**
     * @param {Item|null} left
     * @param {Item|null} right
     * @param {number} index
     * @param {Map<string,any>} currentAttributes
     */
    constructor(left, right, index, currentAttributes) {
      this.left = left;
      this.right = right;
      this.index = index;
      this.currentAttributes = currentAttributes;
    }
    /**
     * Only call this if you know that this.right is defined
     */
    forward() {
      if (this.right === null) {
        unexpectedCase();
      }
      switch (this.right.content.constructor) {
        case ContentFormat:
          if (!this.right.deleted) {
            updateCurrentAttributes(
              this.currentAttributes,
              /** @type {ContentFormat} */
              this.right.content
            );
          }
          break;
        default:
          if (!this.right.deleted) {
            this.index += this.right.length;
          }
          break;
      }
      this.left = this.right;
      this.right = this.right.right;
    }
  };
  var findNextPosition = (transaction, pos, count) => {
    while (pos.right !== null && count > 0) {
      switch (pos.right.content.constructor) {
        case ContentFormat:
          if (!pos.right.deleted) {
            updateCurrentAttributes(
              pos.currentAttributes,
              /** @type {ContentFormat} */
              pos.right.content
            );
          }
          break;
        default:
          if (!pos.right.deleted) {
            if (count < pos.right.length) {
              getItemCleanStart(transaction, createID(pos.right.id.client, pos.right.id.clock + count));
            }
            pos.index += pos.right.length;
            count -= pos.right.length;
          }
          break;
      }
      pos.left = pos.right;
      pos.right = pos.right.right;
    }
    return pos;
  };
  var findPosition = (transaction, parent, index, useSearchMarker) => {
    const currentAttributes = /* @__PURE__ */ new Map();
    const marker = useSearchMarker ? findMarker(parent, index) : null;
    if (marker) {
      const pos = new ItemTextListPosition(marker.p.left, marker.p, marker.index, currentAttributes);
      return findNextPosition(transaction, pos, index - marker.index);
    } else {
      const pos = new ItemTextListPosition(null, parent._start, 0, currentAttributes);
      return findNextPosition(transaction, pos, index);
    }
  };
  var insertNegatedAttributes = (transaction, parent, currPos, negatedAttributes) => {
    while (currPos.right !== null && (currPos.right.deleted === true || currPos.right.content.constructor === ContentFormat && equalAttrs(
      negatedAttributes.get(
        /** @type {ContentFormat} */
        currPos.right.content.key
      ),
      /** @type {ContentFormat} */
      currPos.right.content.value
    ))) {
      if (!currPos.right.deleted) {
        negatedAttributes.delete(
          /** @type {ContentFormat} */
          currPos.right.content.key
        );
      }
      currPos.forward();
    }
    const doc2 = transaction.doc;
    const ownClientId = doc2.clientID;
    negatedAttributes.forEach((val, key) => {
      const left = currPos.left;
      const right = currPos.right;
      const nextFormat = new Item(createID(ownClientId, getState(doc2.store, ownClientId)), left, left && left.lastId, right, right && right.id, parent, null, new ContentFormat(key, val));
      nextFormat.integrate(transaction, 0);
      currPos.right = nextFormat;
      currPos.forward();
    });
  };
  var updateCurrentAttributes = (currentAttributes, format) => {
    const { key, value } = format;
    if (value === null) {
      currentAttributes.delete(key);
    } else {
      currentAttributes.set(key, value);
    }
  };
  var minimizeAttributeChanges = (currPos, attributes) => {
    while (true) {
      if (currPos.right === null) {
        break;
      } else if (currPos.right.deleted || currPos.right.content.constructor === ContentFormat && equalAttrs(
        attributes[
          /** @type {ContentFormat} */
          currPos.right.content.key
        ] ?? null,
        /** @type {ContentFormat} */
        currPos.right.content.value
      )) ;
      else {
        break;
      }
      currPos.forward();
    }
  };
  var insertAttributes = (transaction, parent, currPos, attributes) => {
    const doc2 = transaction.doc;
    const ownClientId = doc2.clientID;
    const negatedAttributes = /* @__PURE__ */ new Map();
    for (const key in attributes) {
      const val = attributes[key];
      const currentVal = currPos.currentAttributes.get(key) ?? null;
      if (!equalAttrs(currentVal, val)) {
        negatedAttributes.set(key, currentVal);
        const { left, right } = currPos;
        currPos.right = new Item(createID(ownClientId, getState(doc2.store, ownClientId)), left, left && left.lastId, right, right && right.id, parent, null, new ContentFormat(key, val));
        currPos.right.integrate(transaction, 0);
        currPos.forward();
      }
    }
    return negatedAttributes;
  };
  var insertText = (transaction, parent, currPos, text2, attributes) => {
    currPos.currentAttributes.forEach((_val, key) => {
      if (attributes[key] === void 0) {
        attributes[key] = null;
      }
    });
    const doc2 = transaction.doc;
    const ownClientId = doc2.clientID;
    minimizeAttributeChanges(currPos, attributes);
    const negatedAttributes = insertAttributes(transaction, parent, currPos, attributes);
    const content = text2.constructor === String ? new ContentString(
      /** @type {string} */
      text2
    ) : text2 instanceof AbstractType ? new ContentType(text2) : new ContentEmbed(text2);
    let { left, right, index } = currPos;
    if (parent._searchMarker) {
      updateMarkerChanges(parent._searchMarker, currPos.index, content.getLength());
    }
    right = new Item(createID(ownClientId, getState(doc2.store, ownClientId)), left, left && left.lastId, right, right && right.id, parent, null, content);
    right.integrate(transaction, 0);
    currPos.right = right;
    currPos.index = index;
    currPos.forward();
    insertNegatedAttributes(transaction, parent, currPos, negatedAttributes);
  };
  var formatText = (transaction, parent, currPos, length3, attributes) => {
    const doc2 = transaction.doc;
    const ownClientId = doc2.clientID;
    minimizeAttributeChanges(currPos, attributes);
    const negatedAttributes = insertAttributes(transaction, parent, currPos, attributes);
    iterationLoop: while (currPos.right !== null && (length3 > 0 || negatedAttributes.size > 0 && (currPos.right.deleted || currPos.right.content.constructor === ContentFormat))) {
      if (!currPos.right.deleted) {
        switch (currPos.right.content.constructor) {
          case ContentFormat: {
            const { key, value } = (
              /** @type {ContentFormat} */
              currPos.right.content
            );
            const attr = attributes[key];
            if (attr !== void 0) {
              if (equalAttrs(attr, value)) {
                negatedAttributes.delete(key);
              } else {
                if (length3 === 0) {
                  break iterationLoop;
                }
                negatedAttributes.set(key, value);
              }
              currPos.right.delete(transaction);
            } else {
              currPos.currentAttributes.set(key, value);
            }
            break;
          }
          default:
            if (length3 < currPos.right.length) {
              getItemCleanStart(transaction, createID(currPos.right.id.client, currPos.right.id.clock + length3));
            }
            length3 -= currPos.right.length;
            break;
        }
      }
      currPos.forward();
    }
    if (length3 > 0) {
      let newlines = "";
      for (; length3 > 0; length3--) {
        newlines += "\n";
      }
      currPos.right = new Item(createID(ownClientId, getState(doc2.store, ownClientId)), currPos.left, currPos.left && currPos.left.lastId, currPos.right, currPos.right && currPos.right.id, parent, null, new ContentString(newlines));
      currPos.right.integrate(transaction, 0);
      currPos.forward();
    }
    insertNegatedAttributes(transaction, parent, currPos, negatedAttributes);
  };
  var cleanupFormattingGap = (transaction, start, curr, startAttributes, currAttributes) => {
    let end = start;
    const endFormats = create();
    while (end && (!end.countable || end.deleted)) {
      if (!end.deleted && end.content.constructor === ContentFormat) {
        const cf = (
          /** @type {ContentFormat} */
          end.content
        );
        endFormats.set(cf.key, cf);
      }
      end = end.right;
    }
    let cleanups = 0;
    let reachedCurr = false;
    while (start !== end) {
      if (curr === start) {
        reachedCurr = true;
      }
      if (!start.deleted) {
        const content = start.content;
        switch (content.constructor) {
          case ContentFormat: {
            const { key, value } = (
              /** @type {ContentFormat} */
              content
            );
            const startAttrValue = startAttributes.get(key) ?? null;
            if (endFormats.get(key) !== content || startAttrValue === value) {
              start.delete(transaction);
              cleanups++;
              if (!reachedCurr && (currAttributes.get(key) ?? null) === value && startAttrValue !== value) {
                if (startAttrValue === null) {
                  currAttributes.delete(key);
                } else {
                  currAttributes.set(key, startAttrValue);
                }
              }
            }
            if (!reachedCurr && !start.deleted) {
              updateCurrentAttributes(
                currAttributes,
                /** @type {ContentFormat} */
                content
              );
            }
            break;
          }
        }
      }
      start = /** @type {Item} */
      start.right;
    }
    return cleanups;
  };
  var cleanupContextlessFormattingGap = (transaction, item) => {
    while (item && item.right && (item.right.deleted || !item.right.countable)) {
      item = item.right;
    }
    const attrs = /* @__PURE__ */ new Set();
    while (item && (item.deleted || !item.countable)) {
      if (!item.deleted && item.content.constructor === ContentFormat) {
        const key = (
          /** @type {ContentFormat} */
          item.content.key
        );
        if (attrs.has(key)) {
          item.delete(transaction);
        } else {
          attrs.add(key);
        }
      }
      item = item.left;
    }
  };
  var cleanupYTextFormatting = (type) => {
    let res = 0;
    transact(
      /** @type {Doc} */
      type.doc,
      (transaction) => {
        let start = (
          /** @type {Item} */
          type._start
        );
        let end = type._start;
        let startAttributes = create();
        const currentAttributes = copy(startAttributes);
        while (end) {
          if (end.deleted === false) {
            switch (end.content.constructor) {
              case ContentFormat:
                updateCurrentAttributes(
                  currentAttributes,
                  /** @type {ContentFormat} */
                  end.content
                );
                break;
              default:
                res += cleanupFormattingGap(transaction, start, end, startAttributes, currentAttributes);
                startAttributes = copy(currentAttributes);
                start = end;
                break;
            }
          }
          end = end.right;
        }
      }
    );
    return res;
  };
  var cleanupYTextAfterTransaction = (transaction) => {
    const needFullCleanup = /* @__PURE__ */ new Set();
    const doc2 = transaction.doc;
    for (const [client, afterClock] of transaction.afterState.entries()) {
      const clock = transaction.beforeState.get(client) || 0;
      if (afterClock === clock) {
        continue;
      }
      iterateStructs(
        transaction,
        /** @type {Array<Item|GC>} */
        doc2.store.clients.get(client),
        clock,
        afterClock,
        (item) => {
          if (!item.deleted && /** @type {Item} */
          item.content.constructor === ContentFormat && item.constructor !== GC) {
            needFullCleanup.add(
              /** @type {any} */
              item.parent
            );
          }
        }
      );
    }
    transact(doc2, (t) => {
      iterateDeletedStructs(transaction, transaction.deleteSet, (item) => {
        if (item instanceof GC || !/** @type {YText} */
        item.parent._hasFormatting || needFullCleanup.has(
          /** @type {YText} */
          item.parent
        )) {
          return;
        }
        const parent = (
          /** @type {YText} */
          item.parent
        );
        if (item.content.constructor === ContentFormat) {
          needFullCleanup.add(parent);
        } else {
          cleanupContextlessFormattingGap(t, item);
        }
      });
      for (const yText of needFullCleanup) {
        cleanupYTextFormatting(yText);
      }
    });
  };
  var deleteText = (transaction, currPos, length3) => {
    const startLength = length3;
    const startAttrs = copy(currPos.currentAttributes);
    const start = currPos.right;
    while (length3 > 0 && currPos.right !== null) {
      if (currPos.right.deleted === false) {
        switch (currPos.right.content.constructor) {
          case ContentType:
          case ContentEmbed:
          case ContentString:
            if (length3 < currPos.right.length) {
              getItemCleanStart(transaction, createID(currPos.right.id.client, currPos.right.id.clock + length3));
            }
            length3 -= currPos.right.length;
            currPos.right.delete(transaction);
            break;
        }
      }
      currPos.forward();
    }
    if (start) {
      cleanupFormattingGap(transaction, start, currPos.right, startAttrs, currPos.currentAttributes);
    }
    const parent = (
      /** @type {AbstractType<any>} */
      /** @type {Item} */
      (currPos.left || currPos.right).parent
    );
    if (parent._searchMarker) {
      updateMarkerChanges(parent._searchMarker, currPos.index, -startLength + length3);
    }
    return currPos;
  };
  var YTextEvent = class extends YEvent {
    /**
     * @param {YText} ytext
     * @param {Transaction} transaction
     * @param {Set<any>} subs The keys that changed
     */
    constructor(ytext, transaction, subs) {
      super(ytext, transaction);
      this.childListChanged = false;
      this.keysChanged = /* @__PURE__ */ new Set();
      subs.forEach((sub) => {
        if (sub === null) {
          this.childListChanged = true;
        } else {
          this.keysChanged.add(sub);
        }
      });
    }
    /**
     * @type {{added:Set<Item>,deleted:Set<Item>,keys:Map<string,{action:'add'|'update'|'delete',oldValue:any}>,delta:Array<{insert?:Array<any>|string, delete?:number, retain?:number}>}}
     */
    get changes() {
      if (this._changes === null) {
        const changes = {
          keys: this.keys,
          delta: this.delta,
          added: /* @__PURE__ */ new Set(),
          deleted: /* @__PURE__ */ new Set()
        };
        this._changes = changes;
      }
      return (
        /** @type {any} */
        this._changes
      );
    }
    /**
     * Compute the changes in the delta format.
     * A {@link https://quilljs.com/docs/delta/|Quill Delta}) that represents the changes on the document.
     *
     * @type {Array<{insert?:string|object|AbstractType<any>, delete?:number, retain?:number, attributes?: Object<string,any>}>}
     *
     * @public
     */
    get delta() {
      if (this._delta === null) {
        const y = (
          /** @type {Doc} */
          this.target.doc
        );
        const delta = [];
        transact(y, (transaction) => {
          const currentAttributes = /* @__PURE__ */ new Map();
          const oldAttributes = /* @__PURE__ */ new Map();
          let item = this.target._start;
          let action = null;
          const attributes = {};
          let insert = "";
          let retain = 0;
          let deleteLen = 0;
          const addOp = () => {
            if (action !== null) {
              let op = null;
              switch (action) {
                case "delete":
                  if (deleteLen > 0) {
                    op = { delete: deleteLen };
                  }
                  deleteLen = 0;
                  break;
                case "insert":
                  if (typeof insert === "object" || insert.length > 0) {
                    op = { insert };
                    if (currentAttributes.size > 0) {
                      op.attributes = {};
                      currentAttributes.forEach((value, key) => {
                        if (value !== null) {
                          op.attributes[key] = value;
                        }
                      });
                    }
                  }
                  insert = "";
                  break;
                case "retain":
                  if (retain > 0) {
                    op = { retain };
                    if (!isEmpty(attributes)) {
                      op.attributes = assign({}, attributes);
                    }
                  }
                  retain = 0;
                  break;
              }
              if (op) delta.push(op);
              action = null;
            }
          };
          while (item !== null) {
            switch (item.content.constructor) {
              case ContentType:
              case ContentEmbed:
                if (this.adds(item)) {
                  if (!this.deletes(item)) {
                    addOp();
                    action = "insert";
                    insert = item.content.getContent()[0];
                    addOp();
                  }
                } else if (this.deletes(item)) {
                  if (action !== "delete") {
                    addOp();
                    action = "delete";
                  }
                  deleteLen += 1;
                } else if (!item.deleted) {
                  if (action !== "retain") {
                    addOp();
                    action = "retain";
                  }
                  retain += 1;
                }
                break;
              case ContentString:
                if (this.adds(item)) {
                  if (!this.deletes(item)) {
                    if (action !== "insert") {
                      addOp();
                      action = "insert";
                    }
                    insert += /** @type {ContentString} */
                    item.content.str;
                  }
                } else if (this.deletes(item)) {
                  if (action !== "delete") {
                    addOp();
                    action = "delete";
                  }
                  deleteLen += item.length;
                } else if (!item.deleted) {
                  if (action !== "retain") {
                    addOp();
                    action = "retain";
                  }
                  retain += item.length;
                }
                break;
              case ContentFormat: {
                const { key, value } = (
                  /** @type {ContentFormat} */
                  item.content
                );
                if (this.adds(item)) {
                  if (!this.deletes(item)) {
                    const curVal = currentAttributes.get(key) ?? null;
                    if (!equalAttrs(curVal, value)) {
                      if (action === "retain") {
                        addOp();
                      }
                      if (equalAttrs(value, oldAttributes.get(key) ?? null)) {
                        delete attributes[key];
                      } else {
                        attributes[key] = value;
                      }
                    } else if (value !== null) {
                      item.delete(transaction);
                    }
                  }
                } else if (this.deletes(item)) {
                  oldAttributes.set(key, value);
                  const curVal = currentAttributes.get(key) ?? null;
                  if (!equalAttrs(curVal, value)) {
                    if (action === "retain") {
                      addOp();
                    }
                    attributes[key] = curVal;
                  }
                } else if (!item.deleted) {
                  oldAttributes.set(key, value);
                  const attr = attributes[key];
                  if (attr !== void 0) {
                    if (!equalAttrs(attr, value)) {
                      if (action === "retain") {
                        addOp();
                      }
                      if (value === null) {
                        delete attributes[key];
                      } else {
                        attributes[key] = value;
                      }
                    } else if (attr !== null) {
                      item.delete(transaction);
                    }
                  }
                }
                if (!item.deleted) {
                  if (action === "insert") {
                    addOp();
                  }
                  updateCurrentAttributes(
                    currentAttributes,
                    /** @type {ContentFormat} */
                    item.content
                  );
                }
                break;
              }
            }
            item = item.right;
          }
          addOp();
          while (delta.length > 0) {
            const lastOp = delta[delta.length - 1];
            if (lastOp.retain !== void 0 && lastOp.attributes === void 0) {
              delta.pop();
            } else {
              break;
            }
          }
        });
        this._delta = delta;
      }
      return (
        /** @type {any} */
        this._delta
      );
    }
  };
  var YText = class _YText extends AbstractType {
    /**
     * @param {String} [string] The initial value of the YText.
     */
    constructor(string) {
      super();
      this._pending = string !== void 0 ? [() => this.insert(0, string)] : [];
      this._searchMarker = [];
      this._hasFormatting = false;
    }
    /**
     * Number of characters of this text type.
     *
     * @type {number}
     */
    get length() {
      this.doc ?? warnPrematureAccess();
      return this._length;
    }
    /**
     * @param {Doc} y
     * @param {Item} item
     */
    _integrate(y, item) {
      super._integrate(y, item);
      try {
        this._pending.forEach((f) => f());
      } catch (e) {
        console.error(e);
      }
      this._pending = null;
    }
    _copy() {
      return new _YText();
    }
    /**
     * Makes a copy of this data type that can be included somewhere else.
     *
     * Note that the content is only readable _after_ it has been included somewhere in the Ydoc.
     *
     * @return {YText}
     */
    clone() {
      const text2 = new _YText();
      text2.applyDelta(this.toDelta());
      return text2;
    }
    /**
     * Creates YTextEvent and calls observers.
     *
     * @param {Transaction} transaction
     * @param {Set<null|string>} parentSubs Keys changed on this type. `null` if list was modified.
     */
    _callObserver(transaction, parentSubs) {
      super._callObserver(transaction, parentSubs);
      const event = new YTextEvent(this, transaction, parentSubs);
      callTypeObservers(this, transaction, event);
      if (!transaction.local && this._hasFormatting) {
        transaction._needFormattingCleanup = true;
      }
    }
    /**
     * Returns the unformatted string representation of this YText type.
     *
     * @public
     */
    toString() {
      this.doc ?? warnPrematureAccess();
      let str = "";
      let n = this._start;
      while (n !== null) {
        if (!n.deleted && n.countable && n.content.constructor === ContentString) {
          str += /** @type {ContentString} */
          n.content.str;
        }
        n = n.right;
      }
      return str;
    }
    /**
     * Returns the unformatted string representation of this YText type.
     *
     * @return {string}
     * @public
     */
    toJSON() {
      return this.toString();
    }
    /**
     * Apply a {@link Delta} on this shared YText type.
     *
     * @param {Array<any>} delta The changes to apply on this element.
     * @param {object}  opts
     * @param {boolean} [opts.sanitize] Sanitize input delta. Removes ending newlines if set to true.
     *
     *
     * @public
     */
    applyDelta(delta, { sanitize = true } = {}) {
      if (this.doc !== null) {
        transact(this.doc, (transaction) => {
          const currPos = new ItemTextListPosition(null, this._start, 0, /* @__PURE__ */ new Map());
          for (let i = 0; i < delta.length; i++) {
            const op = delta[i];
            if (op.insert !== void 0) {
              const ins = !sanitize && typeof op.insert === "string" && i === delta.length - 1 && currPos.right === null && op.insert.slice(-1) === "\n" ? op.insert.slice(0, -1) : op.insert;
              if (typeof ins !== "string" || ins.length > 0) {
                insertText(transaction, this, currPos, ins, op.attributes || {});
              }
            } else if (op.retain !== void 0) {
              formatText(transaction, this, currPos, op.retain, op.attributes || {});
            } else if (op.delete !== void 0) {
              deleteText(transaction, currPos, op.delete);
            }
          }
        });
      } else {
        this._pending.push(() => this.applyDelta(delta));
      }
    }
    /**
     * Returns the Delta representation of this YText type.
     *
     * @param {Snapshot} [snapshot]
     * @param {Snapshot} [prevSnapshot]
     * @param {function('removed' | 'added', ID):any} [computeYChange]
     * @return {any} The Delta representation of this type.
     *
     * @public
     */
    toDelta(snapshot2, prevSnapshot, computeYChange) {
      this.doc ?? warnPrematureAccess();
      const ops = [];
      const currentAttributes = /* @__PURE__ */ new Map();
      const doc2 = (
        /** @type {Doc} */
        this.doc
      );
      let str = "";
      let n = this._start;
      function packStr() {
        if (str.length > 0) {
          const attributes = {};
          let addAttributes = false;
          currentAttributes.forEach((value, key) => {
            addAttributes = true;
            attributes[key] = value;
          });
          const op = { insert: str };
          if (addAttributes) {
            op.attributes = attributes;
          }
          ops.push(op);
          str = "";
        }
      }
      const computeDelta = () => {
        while (n !== null) {
          if (isVisible(n, snapshot2) || prevSnapshot !== void 0 && isVisible(n, prevSnapshot)) {
            switch (n.content.constructor) {
              case ContentString: {
                const cur = currentAttributes.get("ychange");
                if (snapshot2 !== void 0 && !isVisible(n, snapshot2)) {
                  if (cur === void 0 || cur.user !== n.id.client || cur.type !== "removed") {
                    packStr();
                    currentAttributes.set("ychange", computeYChange ? computeYChange("removed", n.id) : { type: "removed" });
                  }
                } else if (prevSnapshot !== void 0 && !isVisible(n, prevSnapshot)) {
                  if (cur === void 0 || cur.user !== n.id.client || cur.type !== "added") {
                    packStr();
                    currentAttributes.set("ychange", computeYChange ? computeYChange("added", n.id) : { type: "added" });
                  }
                } else if (cur !== void 0) {
                  packStr();
                  currentAttributes.delete("ychange");
                }
                str += /** @type {ContentString} */
                n.content.str;
                break;
              }
              case ContentType:
              case ContentEmbed: {
                packStr();
                const op = {
                  insert: n.content.getContent()[0]
                };
                if (currentAttributes.size > 0) {
                  const attrs = (
                    /** @type {Object<string,any>} */
                    {}
                  );
                  op.attributes = attrs;
                  currentAttributes.forEach((value, key) => {
                    attrs[key] = value;
                  });
                }
                ops.push(op);
                break;
              }
              case ContentFormat:
                if (isVisible(n, snapshot2)) {
                  packStr();
                  updateCurrentAttributes(
                    currentAttributes,
                    /** @type {ContentFormat} */
                    n.content
                  );
                }
                break;
            }
          }
          n = n.right;
        }
        packStr();
      };
      if (snapshot2 || prevSnapshot) {
        transact(doc2, (transaction) => {
          if (snapshot2) {
            splitSnapshotAffectedStructs(transaction, snapshot2);
          }
          if (prevSnapshot) {
            splitSnapshotAffectedStructs(transaction, prevSnapshot);
          }
          computeDelta();
        }, "cleanup");
      } else {
        computeDelta();
      }
      return ops;
    }
    /**
     * Insert text at a given index.
     *
     * @param {number} index The index at which to start inserting.
     * @param {String} text The text to insert at the specified position.
     * @param {TextAttributes} [attributes] Optionally define some formatting
     *                                    information to apply on the inserted
     *                                    Text.
     * @public
     */
    insert(index, text2, attributes) {
      if (text2.length <= 0) {
        return;
      }
      const y = this.doc;
      if (y !== null) {
        transact(y, (transaction) => {
          const pos = findPosition(transaction, this, index, !attributes);
          if (!attributes) {
            attributes = {};
            pos.currentAttributes.forEach((v, k) => {
              attributes[k] = v;
            });
          }
          insertText(transaction, this, pos, text2, attributes);
        });
      } else {
        this._pending.push(() => this.insert(index, text2, attributes));
      }
    }
    /**
     * Inserts an embed at a index.
     *
     * @param {number} index The index to insert the embed at.
     * @param {Object | AbstractType<any>} embed The Object that represents the embed.
     * @param {TextAttributes} [attributes] Attribute information to apply on the
     *                                    embed
     *
     * @public
     */
    insertEmbed(index, embed, attributes) {
      const y = this.doc;
      if (y !== null) {
        transact(y, (transaction) => {
          const pos = findPosition(transaction, this, index, !attributes);
          insertText(transaction, this, pos, embed, attributes || {});
        });
      } else {
        this._pending.push(() => this.insertEmbed(index, embed, attributes || {}));
      }
    }
    /**
     * Deletes text starting from an index.
     *
     * @param {number} index Index at which to start deleting.
     * @param {number} length The number of characters to remove. Defaults to 1.
     *
     * @public
     */
    delete(index, length3) {
      if (length3 === 0) {
        return;
      }
      const y = this.doc;
      if (y !== null) {
        transact(y, (transaction) => {
          deleteText(transaction, findPosition(transaction, this, index, true), length3);
        });
      } else {
        this._pending.push(() => this.delete(index, length3));
      }
    }
    /**
     * Assigns properties to a range of text.
     *
     * @param {number} index The position where to start formatting.
     * @param {number} length The amount of characters to assign properties to.
     * @param {TextAttributes} attributes Attribute information to apply on the
     *                                    text.
     *
     * @public
     */
    format(index, length3, attributes) {
      if (length3 === 0) {
        return;
      }
      const y = this.doc;
      if (y !== null) {
        transact(y, (transaction) => {
          const pos = findPosition(transaction, this, index, false);
          if (pos.right === null) {
            return;
          }
          formatText(transaction, this, pos, length3, attributes);
        });
      } else {
        this._pending.push(() => this.format(index, length3, attributes));
      }
    }
    /**
     * Removes an attribute.
     *
     * @note Xml-Text nodes don't have attributes. You can use this feature to assign properties to complete text-blocks.
     *
     * @param {String} attributeName The attribute name that is to be removed.
     *
     * @public
     */
    removeAttribute(attributeName) {
      if (this.doc !== null) {
        transact(this.doc, (transaction) => {
          typeMapDelete(transaction, this, attributeName);
        });
      } else {
        this._pending.push(() => this.removeAttribute(attributeName));
      }
    }
    /**
     * Sets or updates an attribute.
     *
     * @note Xml-Text nodes don't have attributes. You can use this feature to assign properties to complete text-blocks.
     *
     * @param {String} attributeName The attribute name that is to be set.
     * @param {any} attributeValue The attribute value that is to be set.
     *
     * @public
     */
    setAttribute(attributeName, attributeValue) {
      if (this.doc !== null) {
        transact(this.doc, (transaction) => {
          typeMapSet(transaction, this, attributeName, attributeValue);
        });
      } else {
        this._pending.push(() => this.setAttribute(attributeName, attributeValue));
      }
    }
    /**
     * Returns an attribute value that belongs to the attribute name.
     *
     * @note Xml-Text nodes don't have attributes. You can use this feature to assign properties to complete text-blocks.
     *
     * @param {String} attributeName The attribute name that identifies the
     *                               queried value.
     * @return {any} The queried attribute value.
     *
     * @public
     */
    getAttribute(attributeName) {
      return (
        /** @type {any} */
        typeMapGet(this, attributeName)
      );
    }
    /**
     * Returns all attribute name/value pairs in a JSON Object.
     *
     * @note Xml-Text nodes don't have attributes. You can use this feature to assign properties to complete text-blocks.
     *
     * @return {Object<string, any>} A JSON Object that describes the attributes.
     *
     * @public
     */
    getAttributes() {
      return typeMapGetAll(this);
    }
    /**
     * @param {UpdateEncoderV1 | UpdateEncoderV2} encoder
     */
    _write(encoder) {
      encoder.writeTypeRef(YTextRefID);
    }
  };
  var readYText = (_decoder) => new YText();
  var YXmlTreeWalker = class {
    /**
     * @param {YXmlFragment | YXmlElement} root
     * @param {function(AbstractType<any>):boolean} [f]
     */
    constructor(root, f = () => true) {
      this._filter = f;
      this._root = root;
      this._currentNode = /** @type {Item} */
      root._start;
      this._firstCall = true;
      root.doc ?? warnPrematureAccess();
    }
    [Symbol.iterator]() {
      return this;
    }
    /**
     * Get the next node.
     *
     * @return {IteratorResult<YXmlElement|YXmlText|YXmlHook>} The next node.
     *
     * @public
     */
    next() {
      let n = this._currentNode;
      let type = n && n.content && /** @type {any} */
      n.content.type;
      if (n !== null && (!this._firstCall || n.deleted || !this._filter(type))) {
        do {
          type = /** @type {any} */
          n.content.type;
          if (!n.deleted && (type.constructor === YXmlElement || type.constructor === YXmlFragment) && type._start !== null) {
            n = type._start;
          } else {
            while (n !== null) {
              const nxt = n.next;
              if (nxt !== null) {
                n = nxt;
                break;
              } else if (n.parent === this._root) {
                n = null;
              } else {
                n = /** @type {AbstractType<any>} */
                n.parent._item;
              }
            }
          }
        } while (n !== null && (n.deleted || !this._filter(
          /** @type {ContentType} */
          n.content.type
        )));
      }
      this._firstCall = false;
      if (n === null) {
        return { value: void 0, done: true };
      }
      this._currentNode = n;
      return { value: (
        /** @type {any} */
        n.content.type
      ), done: false };
    }
  };
  var YXmlFragment = class _YXmlFragment extends AbstractType {
    constructor() {
      super();
      this._prelimContent = [];
    }
    /**
     * @type {YXmlElement|YXmlText|null}
     */
    get firstChild() {
      const first = this._first;
      return first ? first.content.getContent()[0] : null;
    }
    /**
     * Integrate this type into the Yjs instance.
     *
     * * Save this struct in the os
     * * This type is sent to other client
     * * Observer functions are fired
     *
     * @param {Doc} y The Yjs instance
     * @param {Item} item
     */
    _integrate(y, item) {
      super._integrate(y, item);
      this.insert(
        0,
        /** @type {Array<any>} */
        this._prelimContent
      );
      this._prelimContent = null;
    }
    _copy() {
      return new _YXmlFragment();
    }
    /**
     * Makes a copy of this data type that can be included somewhere else.
     *
     * Note that the content is only readable _after_ it has been included somewhere in the Ydoc.
     *
     * @return {YXmlFragment}
     */
    clone() {
      const el = new _YXmlFragment();
      el.insert(0, this.toArray().map((item) => item instanceof AbstractType ? item.clone() : item));
      return el;
    }
    get length() {
      this.doc ?? warnPrematureAccess();
      return this._prelimContent === null ? this._length : this._prelimContent.length;
    }
    /**
     * Create a subtree of childNodes.
     *
     * @example
     * const walker = elem.createTreeWalker(dom => dom.nodeName === 'div')
     * for (let node in walker) {
     *   // `node` is a div node
     *   nop(node)
     * }
     *
     * @param {function(AbstractType<any>):boolean} filter Function that is called on each child element and
     *                          returns a Boolean indicating whether the child
     *                          is to be included in the subtree.
     * @return {YXmlTreeWalker} A subtree and a position within it.
     *
     * @public
     */
    createTreeWalker(filter) {
      return new YXmlTreeWalker(this, filter);
    }
    /**
     * Returns the first YXmlElement that matches the query.
     * Similar to DOM's {@link querySelector}.
     *
     * Query support:
     *   - tagname
     * TODO:
     *   - id
     *   - attribute
     *
     * @param {CSS_Selector} query The query on the children.
     * @return {YXmlElement|YXmlText|YXmlHook|null} The first element that matches the query or null.
     *
     * @public
     */
    querySelector(query) {
      query = query.toUpperCase();
      const iterator = new YXmlTreeWalker(this, (element2) => element2.nodeName && element2.nodeName.toUpperCase() === query);
      const next = iterator.next();
      if (next.done) {
        return null;
      } else {
        return next.value;
      }
    }
    /**
     * Returns all YXmlElements that match the query.
     * Similar to Dom's {@link querySelectorAll}.
     *
     * @todo Does not yet support all queries. Currently only query by tagName.
     *
     * @param {CSS_Selector} query The query on the children
     * @return {Array<YXmlElement|YXmlText|YXmlHook|null>} The elements that match this query.
     *
     * @public
     */
    querySelectorAll(query) {
      query = query.toUpperCase();
      return from(new YXmlTreeWalker(this, (element2) => element2.nodeName && element2.nodeName.toUpperCase() === query));
    }
    /**
     * Creates YXmlEvent and calls observers.
     *
     * @param {Transaction} transaction
     * @param {Set<null|string>} parentSubs Keys changed on this type. `null` if list was modified.
     */
    _callObserver(transaction, parentSubs) {
      callTypeObservers(this, transaction, new YXmlEvent(this, parentSubs, transaction));
    }
    /**
     * Get the string representation of all the children of this YXmlFragment.
     *
     * @return {string} The string representation of all children.
     */
    toString() {
      return typeListMap(this, (xml) => xml.toString()).join("");
    }
    /**
     * @return {string}
     */
    toJSON() {
      return this.toString();
    }
    /**
     * Creates a Dom Element that mirrors this YXmlElement.
     *
     * @param {Document} [_document=document] The document object (you must define
     *                                        this when calling this method in
     *                                        nodejs)
     * @param {Object<string, any>} [hooks={}] Optional property to customize how hooks
     *                                             are presented in the DOM
     * @param {any} [binding] You should not set this property. This is
     *                               used if DomBinding wants to create a
     *                               association to the created DOM type.
     * @return {Node} The {@link https://developer.mozilla.org/en-US/docs/Web/API/Element|Dom Element}
     *
     * @public
     */
    toDOM(_document = document, hooks = {}, binding) {
      const fragment = _document.createDocumentFragment();
      if (binding !== void 0) {
        binding._createAssociation(fragment, this);
      }
      typeListForEach(this, (xmlType) => {
        fragment.insertBefore(xmlType.toDOM(_document, hooks, binding), null);
      });
      return fragment;
    }
    /**
     * Inserts new content at an index.
     *
     * @example
     *  // Insert character 'a' at position 0
     *  xml.insert(0, [new Y.XmlText('text')])
     *
     * @param {number} index The index to insert content at
     * @param {Array<YXmlElement|YXmlText>} content The array of content
     */
    insert(index, content) {
      if (this.doc !== null) {
        transact(this.doc, (transaction) => {
          typeListInsertGenerics(transaction, this, index, content);
        });
      } else {
        this._prelimContent.splice(index, 0, ...content);
      }
    }
    /**
     * Inserts new content at an index.
     *
     * @example
     *  // Insert character 'a' at position 0
     *  xml.insert(0, [new Y.XmlText('text')])
     *
     * @param {null|Item|YXmlElement|YXmlText} ref The index to insert content at
     * @param {Array<YXmlElement|YXmlText>} content The array of content
     */
    insertAfter(ref, content) {
      if (this.doc !== null) {
        transact(this.doc, (transaction) => {
          const refItem = ref && ref instanceof AbstractType ? ref._item : ref;
          typeListInsertGenericsAfter(transaction, this, refItem, content);
        });
      } else {
        const pc = (
          /** @type {Array<any>} */
          this._prelimContent
        );
        const index = ref === null ? 0 : pc.findIndex((el) => el === ref) + 1;
        if (index === 0 && ref !== null) {
          throw create3("Reference item not found");
        }
        pc.splice(index, 0, ...content);
      }
    }
    /**
     * Deletes elements starting from an index.
     *
     * @param {number} index Index at which to start deleting elements
     * @param {number} [length=1] The number of elements to remove. Defaults to 1.
     */
    delete(index, length3 = 1) {
      if (this.doc !== null) {
        transact(this.doc, (transaction) => {
          typeListDelete(transaction, this, index, length3);
        });
      } else {
        this._prelimContent.splice(index, length3);
      }
    }
    /**
     * Transforms this YArray to a JavaScript Array.
     *
     * @return {Array<YXmlElement|YXmlText|YXmlHook>}
     */
    toArray() {
      return typeListToArray(this);
    }
    /**
     * Appends content to this YArray.
     *
     * @param {Array<YXmlElement|YXmlText>} content Array of content to append.
     */
    push(content) {
      this.insert(this.length, content);
    }
    /**
     * Prepends content to this YArray.
     *
     * @param {Array<YXmlElement|YXmlText>} content Array of content to prepend.
     */
    unshift(content) {
      this.insert(0, content);
    }
    /**
     * Returns the i-th element from a YArray.
     *
     * @param {number} index The index of the element to return from the YArray
     * @return {YXmlElement|YXmlText}
     */
    get(index) {
      return typeListGet(this, index);
    }
    /**
     * Returns a portion of this YXmlFragment into a JavaScript Array selected
     * from start to end (end not included).
     *
     * @param {number} [start]
     * @param {number} [end]
     * @return {Array<YXmlElement|YXmlText>}
     */
    slice(start = 0, end = this.length) {
      return typeListSlice(this, start, end);
    }
    /**
     * Executes a provided function on once on every child element.
     *
     * @param {function(YXmlElement|YXmlText,number, typeof self):void} f A function to execute on every element of this YArray.
     */
    forEach(f) {
      typeListForEach(this, f);
    }
    /**
     * Transform the properties of this type to binary and write it to an
     * BinaryEncoder.
     *
     * This is called when this Item is sent to a remote peer.
     *
     * @param {UpdateEncoderV1 | UpdateEncoderV2} encoder The encoder to write data to.
     */
    _write(encoder) {
      encoder.writeTypeRef(YXmlFragmentRefID);
    }
  };
  var readYXmlFragment = (_decoder) => new YXmlFragment();
  var YXmlElement = class _YXmlElement extends YXmlFragment {
    constructor(nodeName = "UNDEFINED") {
      super();
      this.nodeName = nodeName;
      this._prelimAttrs = /* @__PURE__ */ new Map();
    }
    /**
     * @type {YXmlElement|YXmlText|null}
     */
    get nextSibling() {
      const n = this._item ? this._item.next : null;
      return n ? (
        /** @type {YXmlElement|YXmlText} */
        /** @type {ContentType} */
        n.content.type
      ) : null;
    }
    /**
     * @type {YXmlElement|YXmlText|null}
     */
    get prevSibling() {
      const n = this._item ? this._item.prev : null;
      return n ? (
        /** @type {YXmlElement|YXmlText} */
        /** @type {ContentType} */
        n.content.type
      ) : null;
    }
    /**
     * Integrate this type into the Yjs instance.
     *
     * * Save this struct in the os
     * * This type is sent to other client
     * * Observer functions are fired
     *
     * @param {Doc} y The Yjs instance
     * @param {Item} item
     */
    _integrate(y, item) {
      super._integrate(y, item);
      /** @type {Map<string, any>} */
      this._prelimAttrs.forEach((value, key) => {
        this.setAttribute(key, value);
      });
      this._prelimAttrs = null;
    }
    /**
     * Creates an Item with the same effect as this Item (without position effect)
     *
     * @return {YXmlElement}
     */
    _copy() {
      return new _YXmlElement(this.nodeName);
    }
    /**
     * Makes a copy of this data type that can be included somewhere else.
     *
     * Note that the content is only readable _after_ it has been included somewhere in the Ydoc.
     *
     * @return {YXmlElement<KV>}
     */
    clone() {
      const el = new _YXmlElement(this.nodeName);
      const attrs = this.getAttributes();
      forEach(attrs, (value, key) => {
        el.setAttribute(
          key,
          /** @type {any} */
          value
        );
      });
      el.insert(0, this.toArray().map((v) => v instanceof AbstractType ? v.clone() : v));
      return el;
    }
    /**
     * Returns the XML serialization of this YXmlElement.
     * The attributes are ordered by attribute-name, so you can easily use this
     * method to compare YXmlElements
     *
     * @return {string} The string representation of this type.
     *
     * @public
     */
    toString() {
      const attrs = this.getAttributes();
      const stringBuilder = [];
      const keys2 = [];
      for (const key in attrs) {
        keys2.push(key);
      }
      keys2.sort();
      const keysLen = keys2.length;
      for (let i = 0; i < keysLen; i++) {
        const key = keys2[i];
        stringBuilder.push(key + '="' + attrs[key] + '"');
      }
      const nodeName = this.nodeName.toLocaleLowerCase();
      const attrsString = stringBuilder.length > 0 ? " " + stringBuilder.join(" ") : "";
      return `<${nodeName}${attrsString}>${super.toString()}</${nodeName}>`;
    }
    /**
     * Removes an attribute from this YXmlElement.
     *
     * @param {string} attributeName The attribute name that is to be removed.
     *
     * @public
     */
    removeAttribute(attributeName) {
      if (this.doc !== null) {
        transact(this.doc, (transaction) => {
          typeMapDelete(transaction, this, attributeName);
        });
      } else {
        this._prelimAttrs.delete(attributeName);
      }
    }
    /**
     * Sets or updates an attribute.
     *
     * @template {keyof KV & string} KEY
     *
     * @param {KEY} attributeName The attribute name that is to be set.
     * @param {KV[KEY]} attributeValue The attribute value that is to be set.
     *
     * @public
     */
    setAttribute(attributeName, attributeValue) {
      if (this.doc !== null) {
        transact(this.doc, (transaction) => {
          typeMapSet(transaction, this, attributeName, attributeValue);
        });
      } else {
        this._prelimAttrs.set(attributeName, attributeValue);
      }
    }
    /**
     * Returns an attribute value that belongs to the attribute name.
     *
     * @template {keyof KV & string} KEY
     *
     * @param {KEY} attributeName The attribute name that identifies the
     *                               queried value.
     * @return {KV[KEY]|undefined} The queried attribute value.
     *
     * @public
     */
    getAttribute(attributeName) {
      return (
        /** @type {any} */
        typeMapGet(this, attributeName)
      );
    }
    /**
     * Returns whether an attribute exists
     *
     * @param {string} attributeName The attribute name to check for existence.
     * @return {boolean} whether the attribute exists.
     *
     * @public
     */
    hasAttribute(attributeName) {
      return (
        /** @type {any} */
        typeMapHas(this, attributeName)
      );
    }
    /**
     * Returns all attribute name/value pairs in a JSON Object.
     *
     * @param {Snapshot} [snapshot]
     * @return {{ [Key in Extract<keyof KV,string>]?: KV[Key]}} A JSON Object that describes the attributes.
     *
     * @public
     */
    getAttributes(snapshot2) {
      return (
        /** @type {any} */
        snapshot2 ? typeMapGetAllSnapshot(this, snapshot2) : typeMapGetAll(this)
      );
    }
    /**
     * Creates a Dom Element that mirrors this YXmlElement.
     *
     * @param {Document} [_document=document] The document object (you must define
     *                                        this when calling this method in
     *                                        nodejs)
     * @param {Object<string, any>} [hooks={}] Optional property to customize how hooks
     *                                             are presented in the DOM
     * @param {any} [binding] You should not set this property. This is
     *                               used if DomBinding wants to create a
     *                               association to the created DOM type.
     * @return {Node} The {@link https://developer.mozilla.org/en-US/docs/Web/API/Element|Dom Element}
     *
     * @public
     */
    toDOM(_document = document, hooks = {}, binding) {
      const dom = _document.createElement(this.nodeName);
      const attrs = this.getAttributes();
      for (const key in attrs) {
        const value = attrs[key];
        if (typeof value === "string") {
          dom.setAttribute(key, value);
        }
      }
      typeListForEach(this, (yxml) => {
        dom.appendChild(yxml.toDOM(_document, hooks, binding));
      });
      if (binding !== void 0) {
        binding._createAssociation(dom, this);
      }
      return dom;
    }
    /**
     * Transform the properties of this type to binary and write it to an
     * BinaryEncoder.
     *
     * This is called when this Item is sent to a remote peer.
     *
     * @param {UpdateEncoderV1 | UpdateEncoderV2} encoder The encoder to write data to.
     */
    _write(encoder) {
      encoder.writeTypeRef(YXmlElementRefID);
      encoder.writeKey(this.nodeName);
    }
  };
  var readYXmlElement = (decoder) => new YXmlElement(decoder.readKey());
  var YXmlEvent = class extends YEvent {
    /**
     * @param {YXmlElement|YXmlText|YXmlFragment} target The target on which the event is created.
     * @param {Set<string|null>} subs The set of changed attributes. `null` is included if the
     *                   child list changed.
     * @param {Transaction} transaction The transaction instance with which the
     *                                  change was created.
     */
    constructor(target, subs, transaction) {
      super(target, transaction);
      this.childListChanged = false;
      this.attributesChanged = /* @__PURE__ */ new Set();
      subs.forEach((sub) => {
        if (sub === null) {
          this.childListChanged = true;
        } else {
          this.attributesChanged.add(sub);
        }
      });
    }
  };
  var YXmlHook = class _YXmlHook extends YMap {
    /**
     * @param {string} hookName nodeName of the Dom Node.
     */
    constructor(hookName) {
      super();
      this.hookName = hookName;
    }
    /**
     * Creates an Item with the same effect as this Item (without position effect)
     */
    _copy() {
      return new _YXmlHook(this.hookName);
    }
    /**
     * Makes a copy of this data type that can be included somewhere else.
     *
     * Note that the content is only readable _after_ it has been included somewhere in the Ydoc.
     *
     * @return {YXmlHook}
     */
    clone() {
      const el = new _YXmlHook(this.hookName);
      this.forEach((value, key) => {
        el.set(key, value);
      });
      return el;
    }
    /**
     * Creates a Dom Element that mirrors this YXmlElement.
     *
     * @param {Document} [_document=document] The document object (you must define
     *                                        this when calling this method in
     *                                        nodejs)
     * @param {Object.<string, any>} [hooks] Optional property to customize how hooks
     *                                             are presented in the DOM
     * @param {any} [binding] You should not set this property. This is
     *                               used if DomBinding wants to create a
     *                               association to the created DOM type
     * @return {Element} The {@link https://developer.mozilla.org/en-US/docs/Web/API/Element|Dom Element}
     *
     * @public
     */
    toDOM(_document = document, hooks = {}, binding) {
      const hook = hooks[this.hookName];
      let dom;
      if (hook !== void 0) {
        dom = hook.createDom(this);
      } else {
        dom = document.createElement(this.hookName);
      }
      dom.setAttribute("data-yjs-hook", this.hookName);
      if (binding !== void 0) {
        binding._createAssociation(dom, this);
      }
      return dom;
    }
    /**
     * Transform the properties of this type to binary and write it to an
     * BinaryEncoder.
     *
     * This is called when this Item is sent to a remote peer.
     *
     * @param {UpdateEncoderV1 | UpdateEncoderV2} encoder The encoder to write data to.
     */
    _write(encoder) {
      encoder.writeTypeRef(YXmlHookRefID);
      encoder.writeKey(this.hookName);
    }
  };
  var readYXmlHook = (decoder) => new YXmlHook(decoder.readKey());
  var YXmlText = class _YXmlText extends YText {
    /**
     * @type {YXmlElement|YXmlText|null}
     */
    get nextSibling() {
      const n = this._item ? this._item.next : null;
      return n ? (
        /** @type {YXmlElement|YXmlText} */
        /** @type {ContentType} */
        n.content.type
      ) : null;
    }
    /**
     * @type {YXmlElement|YXmlText|null}
     */
    get prevSibling() {
      const n = this._item ? this._item.prev : null;
      return n ? (
        /** @type {YXmlElement|YXmlText} */
        /** @type {ContentType} */
        n.content.type
      ) : null;
    }
    _copy() {
      return new _YXmlText();
    }
    /**
     * Makes a copy of this data type that can be included somewhere else.
     *
     * Note that the content is only readable _after_ it has been included somewhere in the Ydoc.
     *
     * @return {YXmlText}
     */
    clone() {
      const text2 = new _YXmlText();
      text2.applyDelta(this.toDelta());
      return text2;
    }
    /**
     * Creates a Dom Element that mirrors this YXmlText.
     *
     * @param {Document} [_document=document] The document object (you must define
     *                                        this when calling this method in
     *                                        nodejs)
     * @param {Object<string, any>} [hooks] Optional property to customize how hooks
     *                                             are presented in the DOM
     * @param {any} [binding] You should not set this property. This is
     *                               used if DomBinding wants to create a
     *                               association to the created DOM type.
     * @return {Text} The {@link https://developer.mozilla.org/en-US/docs/Web/API/Element|Dom Element}
     *
     * @public
     */
    toDOM(_document = document, hooks, binding) {
      const dom = _document.createTextNode(this.toString());
      if (binding !== void 0) {
        binding._createAssociation(dom, this);
      }
      return dom;
    }
    toString() {
      return this.toDelta().map((delta) => {
        const nestedNodes = [];
        for (const nodeName in delta.attributes) {
          const attrs = [];
          for (const key in delta.attributes[nodeName]) {
            attrs.push({ key, value: delta.attributes[nodeName][key] });
          }
          attrs.sort((a, b) => a.key < b.key ? -1 : 1);
          nestedNodes.push({ nodeName, attrs });
        }
        nestedNodes.sort((a, b) => a.nodeName < b.nodeName ? -1 : 1);
        let str = "";
        for (let i = 0; i < nestedNodes.length; i++) {
          const node = nestedNodes[i];
          str += `<${node.nodeName}`;
          for (let j = 0; j < node.attrs.length; j++) {
            const attr = node.attrs[j];
            str += ` ${attr.key}="${attr.value}"`;
          }
          str += ">";
        }
        str += delta.insert;
        for (let i = nestedNodes.length - 1; i >= 0; i--) {
          str += `</${nestedNodes[i].nodeName}>`;
        }
        return str;
      }).join("");
    }
    /**
     * @return {string}
     */
    toJSON() {
      return this.toString();
    }
    /**
     * @param {UpdateEncoderV1 | UpdateEncoderV2} encoder
     */
    _write(encoder) {
      encoder.writeTypeRef(YXmlTextRefID);
    }
  };
  var readYXmlText = (decoder) => new YXmlText();
  var AbstractStruct = class {
    /**
     * @param {ID} id
     * @param {number} length
     */
    constructor(id2, length3) {
      this.id = id2;
      this.length = length3;
    }
    /**
     * @type {boolean}
     */
    get deleted() {
      throw methodUnimplemented();
    }
    /**
     * Merge this struct with the item to the right.
     * This method is already assuming that `this.id.clock + this.length === this.id.clock`.
     * Also this method does *not* remove right from StructStore!
     * @param {AbstractStruct} right
     * @return {boolean} whether this merged with right
     */
    mergeWith(right) {
      return false;
    }
    /**
     * @param {UpdateEncoderV1 | UpdateEncoderV2} encoder The encoder to write data to.
     * @param {number} offset
     * @param {number} encodingRef
     */
    write(encoder, offset, encodingRef) {
      throw methodUnimplemented();
    }
    /**
     * @param {Transaction} transaction
     * @param {number} offset
     */
    integrate(transaction, offset) {
      throw methodUnimplemented();
    }
  };
  var structGCRefNumber = 0;
  var GC = class extends AbstractStruct {
    get deleted() {
      return true;
    }
    delete() {
    }
    /**
     * @param {GC} right
     * @return {boolean}
     */
    mergeWith(right) {
      if (this.constructor !== right.constructor) {
        return false;
      }
      this.length += right.length;
      return true;
    }
    /**
     * @param {Transaction} transaction
     * @param {number} offset
     */
    integrate(transaction, offset) {
      if (offset > 0) {
        this.id.clock += offset;
        this.length -= offset;
      }
      addStruct(transaction.doc.store, this);
    }
    /**
     * @param {UpdateEncoderV1 | UpdateEncoderV2} encoder
     * @param {number} offset
     */
    write(encoder, offset) {
      encoder.writeInfo(structGCRefNumber);
      encoder.writeLen(this.length - offset);
    }
    /**
     * @param {Transaction} transaction
     * @param {StructStore} store
     * @return {null | number}
     */
    getMissing(transaction, store) {
      return null;
    }
  };
  var ContentBinary = class _ContentBinary {
    /**
     * @param {Uint8Array} content
     */
    constructor(content) {
      this.content = content;
    }
    /**
     * @return {number}
     */
    getLength() {
      return 1;
    }
    /**
     * @return {Array<any>}
     */
    getContent() {
      return [this.content];
    }
    /**
     * @return {boolean}
     */
    isCountable() {
      return true;
    }
    /**
     * @return {ContentBinary}
     */
    copy() {
      return new _ContentBinary(this.content);
    }
    /**
     * @param {number} offset
     * @return {ContentBinary}
     */
    splice(offset) {
      throw methodUnimplemented();
    }
    /**
     * @param {ContentBinary} right
     * @return {boolean}
     */
    mergeWith(right) {
      return false;
    }
    /**
     * @param {Transaction} transaction
     * @param {Item} item
     */
    integrate(transaction, item) {
    }
    /**
     * @param {Transaction} transaction
     */
    delete(transaction) {
    }
    /**
     * @param {StructStore} store
     */
    gc(store) {
    }
    /**
     * @param {UpdateEncoderV1 | UpdateEncoderV2} encoder
     * @param {number} offset
     */
    write(encoder, offset) {
      encoder.writeBuf(this.content);
    }
    /**
     * @return {number}
     */
    getRef() {
      return 3;
    }
  };
  var readContentBinary = (decoder) => new ContentBinary(decoder.readBuf());
  var ContentDeleted = class _ContentDeleted {
    /**
     * @param {number} len
     */
    constructor(len) {
      this.len = len;
    }
    /**
     * @return {number}
     */
    getLength() {
      return this.len;
    }
    /**
     * @return {Array<any>}
     */
    getContent() {
      return [];
    }
    /**
     * @return {boolean}
     */
    isCountable() {
      return false;
    }
    /**
     * @return {ContentDeleted}
     */
    copy() {
      return new _ContentDeleted(this.len);
    }
    /**
     * @param {number} offset
     * @return {ContentDeleted}
     */
    splice(offset) {
      const right = new _ContentDeleted(this.len - offset);
      this.len = offset;
      return right;
    }
    /**
     * @param {ContentDeleted} right
     * @return {boolean}
     */
    mergeWith(right) {
      this.len += right.len;
      return true;
    }
    /**
     * @param {Transaction} transaction
     * @param {Item} item
     */
    integrate(transaction, item) {
      addToDeleteSet(transaction.deleteSet, item.id.client, item.id.clock, this.len);
      item.markDeleted();
    }
    /**
     * @param {Transaction} transaction
     */
    delete(transaction) {
    }
    /**
     * @param {StructStore} store
     */
    gc(store) {
    }
    /**
     * @param {UpdateEncoderV1 | UpdateEncoderV2} encoder
     * @param {number} offset
     */
    write(encoder, offset) {
      encoder.writeLen(this.len - offset);
    }
    /**
     * @return {number}
     */
    getRef() {
      return 1;
    }
  };
  var readContentDeleted = (decoder) => new ContentDeleted(decoder.readLen());
  var createDocFromOpts = (guid, opts) => new Doc({ guid, ...opts, shouldLoad: opts.shouldLoad || opts.autoLoad || false });
  var ContentDoc = class _ContentDoc {
    /**
     * @param {Doc} doc
     */
    constructor(doc2) {
      if (doc2._item) {
        console.error("This document was already integrated as a sub-document. You should create a second instance instead with the same guid.");
      }
      this.doc = doc2;
      const opts = {};
      this.opts = opts;
      if (!doc2.gc) {
        opts.gc = false;
      }
      if (doc2.autoLoad) {
        opts.autoLoad = true;
      }
      if (doc2.meta !== null) {
        opts.meta = doc2.meta;
      }
    }
    /**
     * @return {number}
     */
    getLength() {
      return 1;
    }
    /**
     * @return {Array<any>}
     */
    getContent() {
      return [this.doc];
    }
    /**
     * @return {boolean}
     */
    isCountable() {
      return true;
    }
    /**
     * @return {ContentDoc}
     */
    copy() {
      return new _ContentDoc(createDocFromOpts(this.doc.guid, this.opts));
    }
    /**
     * @param {number} offset
     * @return {ContentDoc}
     */
    splice(offset) {
      throw methodUnimplemented();
    }
    /**
     * @param {ContentDoc} right
     * @return {boolean}
     */
    mergeWith(right) {
      return false;
    }
    /**
     * @param {Transaction} transaction
     * @param {Item} item
     */
    integrate(transaction, item) {
      this.doc._item = item;
      transaction.subdocsAdded.add(this.doc);
      if (this.doc.shouldLoad) {
        transaction.subdocsLoaded.add(this.doc);
      }
    }
    /**
     * @param {Transaction} transaction
     */
    delete(transaction) {
      if (transaction.subdocsAdded.has(this.doc)) {
        transaction.subdocsAdded.delete(this.doc);
      } else {
        transaction.subdocsRemoved.add(this.doc);
      }
    }
    /**
     * @param {StructStore} store
     */
    gc(store) {
    }
    /**
     * @param {UpdateEncoderV1 | UpdateEncoderV2} encoder
     * @param {number} offset
     */
    write(encoder, offset) {
      encoder.writeString(this.doc.guid);
      encoder.writeAny(this.opts);
    }
    /**
     * @return {number}
     */
    getRef() {
      return 9;
    }
  };
  var readContentDoc = (decoder) => new ContentDoc(createDocFromOpts(decoder.readString(), decoder.readAny()));
  var ContentEmbed = class _ContentEmbed {
    /**
     * @param {Object} embed
     */
    constructor(embed) {
      this.embed = embed;
    }
    /**
     * @return {number}
     */
    getLength() {
      return 1;
    }
    /**
     * @return {Array<any>}
     */
    getContent() {
      return [this.embed];
    }
    /**
     * @return {boolean}
     */
    isCountable() {
      return true;
    }
    /**
     * @return {ContentEmbed}
     */
    copy() {
      return new _ContentEmbed(this.embed);
    }
    /**
     * @param {number} offset
     * @return {ContentEmbed}
     */
    splice(offset) {
      throw methodUnimplemented();
    }
    /**
     * @param {ContentEmbed} right
     * @return {boolean}
     */
    mergeWith(right) {
      return false;
    }
    /**
     * @param {Transaction} transaction
     * @param {Item} item
     */
    integrate(transaction, item) {
    }
    /**
     * @param {Transaction} transaction
     */
    delete(transaction) {
    }
    /**
     * @param {StructStore} store
     */
    gc(store) {
    }
    /**
     * @param {UpdateEncoderV1 | UpdateEncoderV2} encoder
     * @param {number} offset
     */
    write(encoder, offset) {
      encoder.writeJSON(this.embed);
    }
    /**
     * @return {number}
     */
    getRef() {
      return 5;
    }
  };
  var readContentEmbed = (decoder) => new ContentEmbed(decoder.readJSON());
  var ContentFormat = class _ContentFormat {
    /**
     * @param {string} key
     * @param {Object} value
     */
    constructor(key, value) {
      this.key = key;
      this.value = value;
    }
    /**
     * @return {number}
     */
    getLength() {
      return 1;
    }
    /**
     * @return {Array<any>}
     */
    getContent() {
      return [];
    }
    /**
     * @return {boolean}
     */
    isCountable() {
      return false;
    }
    /**
     * @return {ContentFormat}
     */
    copy() {
      return new _ContentFormat(this.key, this.value);
    }
    /**
     * @param {number} _offset
     * @return {ContentFormat}
     */
    splice(_offset) {
      throw methodUnimplemented();
    }
    /**
     * @param {ContentFormat} _right
     * @return {boolean}
     */
    mergeWith(_right) {
      return false;
    }
    /**
     * @param {Transaction} _transaction
     * @param {Item} item
     */
    integrate(_transaction, item) {
      const p = (
        /** @type {YText} */
        item.parent
      );
      p._searchMarker = null;
      p._hasFormatting = true;
    }
    /**
     * @param {Transaction} transaction
     */
    delete(transaction) {
    }
    /**
     * @param {StructStore} store
     */
    gc(store) {
    }
    /**
     * @param {UpdateEncoderV1 | UpdateEncoderV2} encoder
     * @param {number} offset
     */
    write(encoder, offset) {
      encoder.writeKey(this.key);
      encoder.writeJSON(this.value);
    }
    /**
     * @return {number}
     */
    getRef() {
      return 6;
    }
  };
  var readContentFormat = (decoder) => new ContentFormat(decoder.readKey(), decoder.readJSON());
  var ContentJSON = class _ContentJSON {
    /**
     * @param {Array<any>} arr
     */
    constructor(arr) {
      this.arr = arr;
    }
    /**
     * @return {number}
     */
    getLength() {
      return this.arr.length;
    }
    /**
     * @return {Array<any>}
     */
    getContent() {
      return this.arr;
    }
    /**
     * @return {boolean}
     */
    isCountable() {
      return true;
    }
    /**
     * @return {ContentJSON}
     */
    copy() {
      return new _ContentJSON(this.arr);
    }
    /**
     * @param {number} offset
     * @return {ContentJSON}
     */
    splice(offset) {
      const right = new _ContentJSON(this.arr.slice(offset));
      this.arr = this.arr.slice(0, offset);
      return right;
    }
    /**
     * @param {ContentJSON} right
     * @return {boolean}
     */
    mergeWith(right) {
      this.arr = this.arr.concat(right.arr);
      return true;
    }
    /**
     * @param {Transaction} transaction
     * @param {Item} item
     */
    integrate(transaction, item) {
    }
    /**
     * @param {Transaction} transaction
     */
    delete(transaction) {
    }
    /**
     * @param {StructStore} store
     */
    gc(store) {
    }
    /**
     * @param {UpdateEncoderV1 | UpdateEncoderV2} encoder
     * @param {number} offset
     */
    write(encoder, offset) {
      const len = this.arr.length;
      encoder.writeLen(len - offset);
      for (let i = offset; i < len; i++) {
        const c = this.arr[i];
        encoder.writeString(c === void 0 ? "undefined" : JSON.stringify(c));
      }
    }
    /**
     * @return {number}
     */
    getRef() {
      return 2;
    }
  };
  var readContentJSON = (decoder) => {
    const len = decoder.readLen();
    const cs = [];
    for (let i = 0; i < len; i++) {
      const c = decoder.readString();
      if (c === "undefined") {
        cs.push(void 0);
      } else {
        cs.push(JSON.parse(c));
      }
    }
    return new ContentJSON(cs);
  };
  var isDevMode = getVariable("node_env") === "development";
  var ContentAny = class _ContentAny {
    /**
     * @param {Array<any>} arr
     */
    constructor(arr) {
      this.arr = arr;
      isDevMode && deepFreeze(arr);
    }
    /**
     * @return {number}
     */
    getLength() {
      return this.arr.length;
    }
    /**
     * @return {Array<any>}
     */
    getContent() {
      return this.arr;
    }
    /**
     * @return {boolean}
     */
    isCountable() {
      return true;
    }
    /**
     * @return {ContentAny}
     */
    copy() {
      return new _ContentAny(this.arr);
    }
    /**
     * @param {number} offset
     * @return {ContentAny}
     */
    splice(offset) {
      const right = new _ContentAny(this.arr.slice(offset));
      this.arr = this.arr.slice(0, offset);
      return right;
    }
    /**
     * @param {ContentAny} right
     * @return {boolean}
     */
    mergeWith(right) {
      this.arr = this.arr.concat(right.arr);
      return true;
    }
    /**
     * @param {Transaction} transaction
     * @param {Item} item
     */
    integrate(transaction, item) {
    }
    /**
     * @param {Transaction} transaction
     */
    delete(transaction) {
    }
    /**
     * @param {StructStore} store
     */
    gc(store) {
    }
    /**
     * @param {UpdateEncoderV1 | UpdateEncoderV2} encoder
     * @param {number} offset
     */
    write(encoder, offset) {
      const len = this.arr.length;
      encoder.writeLen(len - offset);
      for (let i = offset; i < len; i++) {
        const c = this.arr[i];
        encoder.writeAny(c);
      }
    }
    /**
     * @return {number}
     */
    getRef() {
      return 8;
    }
  };
  var readContentAny = (decoder) => {
    const len = decoder.readLen();
    const cs = [];
    for (let i = 0; i < len; i++) {
      cs.push(decoder.readAny());
    }
    return new ContentAny(cs);
  };
  var ContentString = class _ContentString {
    /**
     * @param {string} str
     */
    constructor(str) {
      this.str = str;
    }
    /**
     * @return {number}
     */
    getLength() {
      return this.str.length;
    }
    /**
     * @return {Array<any>}
     */
    getContent() {
      return this.str.split("");
    }
    /**
     * @return {boolean}
     */
    isCountable() {
      return true;
    }
    /**
     * @return {ContentString}
     */
    copy() {
      return new _ContentString(this.str);
    }
    /**
     * @param {number} offset
     * @return {ContentString}
     */
    splice(offset) {
      const right = new _ContentString(this.str.slice(offset));
      this.str = this.str.slice(0, offset);
      const firstCharCode = this.str.charCodeAt(offset - 1);
      if (firstCharCode >= 55296 && firstCharCode <= 56319) {
        this.str = this.str.slice(0, offset - 1) + "\uFFFD";
        right.str = "\uFFFD" + right.str.slice(1);
      }
      return right;
    }
    /**
     * @param {ContentString} right
     * @return {boolean}
     */
    mergeWith(right) {
      this.str += right.str;
      return true;
    }
    /**
     * @param {Transaction} transaction
     * @param {Item} item
     */
    integrate(transaction, item) {
    }
    /**
     * @param {Transaction} transaction
     */
    delete(transaction) {
    }
    /**
     * @param {StructStore} store
     */
    gc(store) {
    }
    /**
     * @param {UpdateEncoderV1 | UpdateEncoderV2} encoder
     * @param {number} offset
     */
    write(encoder, offset) {
      encoder.writeString(offset === 0 ? this.str : this.str.slice(offset));
    }
    /**
     * @return {number}
     */
    getRef() {
      return 4;
    }
  };
  var readContentString = (decoder) => new ContentString(decoder.readString());
  var typeRefs = [
    readYArray,
    readYMap,
    readYText,
    readYXmlElement,
    readYXmlFragment,
    readYXmlHook,
    readYXmlText
  ];
  var YArrayRefID = 0;
  var YMapRefID = 1;
  var YTextRefID = 2;
  var YXmlElementRefID = 3;
  var YXmlFragmentRefID = 4;
  var YXmlHookRefID = 5;
  var YXmlTextRefID = 6;
  var ContentType = class _ContentType {
    /**
     * @param {AbstractType<any>} type
     */
    constructor(type) {
      this.type = type;
    }
    /**
     * @return {number}
     */
    getLength() {
      return 1;
    }
    /**
     * @return {Array<any>}
     */
    getContent() {
      return [this.type];
    }
    /**
     * @return {boolean}
     */
    isCountable() {
      return true;
    }
    /**
     * @return {ContentType}
     */
    copy() {
      return new _ContentType(this.type._copy());
    }
    /**
     * @param {number} offset
     * @return {ContentType}
     */
    splice(offset) {
      throw methodUnimplemented();
    }
    /**
     * @param {ContentType} right
     * @return {boolean}
     */
    mergeWith(right) {
      return false;
    }
    /**
     * @param {Transaction} transaction
     * @param {Item} item
     */
    integrate(transaction, item) {
      this.type._integrate(transaction.doc, item);
    }
    /**
     * @param {Transaction} transaction
     */
    delete(transaction) {
      let item = this.type._start;
      while (item !== null) {
        if (!item.deleted) {
          item.delete(transaction);
        } else if (item.id.clock < (transaction.beforeState.get(item.id.client) || 0)) {
          transaction._mergeStructs.push(item);
        }
        item = item.right;
      }
      this.type._map.forEach((item2) => {
        if (!item2.deleted) {
          item2.delete(transaction);
        } else if (item2.id.clock < (transaction.beforeState.get(item2.id.client) || 0)) {
          transaction._mergeStructs.push(item2);
        }
      });
      transaction.changed.delete(this.type);
    }
    /**
     * @param {StructStore} store
     */
    gc(store) {
      let item = this.type._start;
      while (item !== null) {
        item.gc(store, true);
        item = item.right;
      }
      this.type._start = null;
      this.type._map.forEach(
        /** @param {Item | null} item */
        (item2) => {
          while (item2 !== null) {
            item2.gc(store, true);
            item2 = item2.left;
          }
        }
      );
      this.type._map = /* @__PURE__ */ new Map();
    }
    /**
     * @param {UpdateEncoderV1 | UpdateEncoderV2} encoder
     * @param {number} offset
     */
    write(encoder, offset) {
      this.type._write(encoder);
    }
    /**
     * @return {number}
     */
    getRef() {
      return 7;
    }
  };
  var readContentType = (decoder) => new ContentType(typeRefs[decoder.readTypeRef()](decoder));
  var followRedone = (store, id2) => {
    let nextID = id2;
    let diff = 0;
    let item;
    do {
      if (diff > 0) {
        nextID = createID(nextID.client, nextID.clock + diff);
      }
      item = getItem(store, nextID);
      diff = nextID.clock - item.id.clock;
      nextID = item.redone;
    } while (nextID !== null && item instanceof Item);
    return {
      item,
      diff
    };
  };
  var keepItem = (item, keep) => {
    while (item !== null && item.keep !== keep) {
      item.keep = keep;
      item = /** @type {AbstractType<any>} */
      item.parent._item;
    }
  };
  var splitItem = (transaction, leftItem, diff) => {
    const { client, clock } = leftItem.id;
    const rightItem = new Item(
      createID(client, clock + diff),
      leftItem,
      createID(client, clock + diff - 1),
      leftItem.right,
      leftItem.rightOrigin,
      leftItem.parent,
      leftItem.parentSub,
      leftItem.content.splice(diff)
    );
    if (leftItem.deleted) {
      rightItem.markDeleted();
    }
    if (leftItem.keep) {
      rightItem.keep = true;
    }
    if (leftItem.redone !== null) {
      rightItem.redone = createID(leftItem.redone.client, leftItem.redone.clock + diff);
    }
    leftItem.right = rightItem;
    if (rightItem.right !== null) {
      rightItem.right.left = rightItem;
    }
    transaction._mergeStructs.push(rightItem);
    if (rightItem.parentSub !== null && rightItem.right === null) {
      rightItem.parent._map.set(rightItem.parentSub, rightItem);
    }
    leftItem.length = diff;
    return rightItem;
  };
  var isDeletedByUndoStack = (stack, id2) => some(
    stack,
    /** @param {StackItem} s */
    (s) => isDeleted(s.deletions, id2)
  );
  var redoItem = (transaction, item, redoitems, itemsToDelete, ignoreRemoteMapChanges, um) => {
    const doc2 = transaction.doc;
    const store = doc2.store;
    const ownClientID = doc2.clientID;
    const redone = item.redone;
    if (redone !== null) {
      return getItemCleanStart(transaction, redone);
    }
    let parentItem = (
      /** @type {AbstractType<any>} */
      item.parent._item
    );
    let left = null;
    let right;
    if (parentItem !== null && parentItem.deleted === true) {
      if (parentItem.redone === null && (!redoitems.has(parentItem) || redoItem(transaction, parentItem, redoitems, itemsToDelete, ignoreRemoteMapChanges, um) === null)) {
        return null;
      }
      while (parentItem.redone !== null) {
        parentItem = getItemCleanStart(transaction, parentItem.redone);
      }
    }
    const parentType = parentItem === null ? (
      /** @type {AbstractType<any>} */
      item.parent
    ) : (
      /** @type {ContentType} */
      parentItem.content.type
    );
    if (item.parentSub === null) {
      left = item.left;
      right = item;
      while (left !== null) {
        let leftTrace = left;
        while (leftTrace !== null && /** @type {AbstractType<any>} */
        leftTrace.parent._item !== parentItem) {
          leftTrace = leftTrace.redone === null ? null : getItemCleanStart(transaction, leftTrace.redone);
        }
        if (leftTrace !== null && /** @type {AbstractType<any>} */
        leftTrace.parent._item === parentItem) {
          left = leftTrace;
          break;
        }
        left = left.left;
      }
      while (right !== null) {
        let rightTrace = right;
        while (rightTrace !== null && /** @type {AbstractType<any>} */
        rightTrace.parent._item !== parentItem) {
          rightTrace = rightTrace.redone === null ? null : getItemCleanStart(transaction, rightTrace.redone);
        }
        if (rightTrace !== null && /** @type {AbstractType<any>} */
        rightTrace.parent._item === parentItem) {
          right = rightTrace;
          break;
        }
        right = right.right;
      }
    } else {
      right = null;
      if (item.right && !ignoreRemoteMapChanges) {
        left = item;
        while (left !== null && left.right !== null && (left.right.redone || isDeleted(itemsToDelete, left.right.id) || isDeletedByUndoStack(um.undoStack, left.right.id) || isDeletedByUndoStack(um.redoStack, left.right.id))) {
          left = left.right;
          while (left.redone) left = getItemCleanStart(transaction, left.redone);
        }
        if (left && left.right !== null) {
          return null;
        }
      } else {
        left = parentType._map.get(item.parentSub) || null;
      }
    }
    const nextClock = getState(store, ownClientID);
    const nextId = createID(ownClientID, nextClock);
    const redoneItem = new Item(
      nextId,
      left,
      left && left.lastId,
      right,
      right && right.id,
      parentType,
      item.parentSub,
      item.content.copy()
    );
    item.redone = nextId;
    keepItem(redoneItem, true);
    redoneItem.integrate(transaction, 0);
    return redoneItem;
  };
  var Item = class _Item extends AbstractStruct {
    /**
     * @param {ID} id
     * @param {Item | null} left
     * @param {ID | null} origin
     * @param {Item | null} right
     * @param {ID | null} rightOrigin
     * @param {AbstractType<any>|ID|null} parent Is a type if integrated, is null if it is possible to copy parent from left or right, is ID before integration to search for it.
     * @param {string | null} parentSub
     * @param {AbstractContent} content
     */
    constructor(id2, left, origin2, right, rightOrigin, parent, parentSub, content) {
      super(id2, content.getLength());
      this.origin = origin2;
      this.left = left;
      this.right = right;
      this.rightOrigin = rightOrigin;
      this.parent = parent;
      this.parentSub = parentSub;
      this.redone = null;
      this.content = content;
      this.info = this.content.isCountable() ? BIT2 : 0;
    }
    /**
     * This is used to mark the item as an indexed fast-search marker
     *
     * @type {boolean}
     */
    set marker(isMarked) {
      if ((this.info & BIT4) > 0 !== isMarked) {
        this.info ^= BIT4;
      }
    }
    get marker() {
      return (this.info & BIT4) > 0;
    }
    /**
     * If true, do not garbage collect this Item.
     */
    get keep() {
      return (this.info & BIT1) > 0;
    }
    set keep(doKeep) {
      if (this.keep !== doKeep) {
        this.info ^= BIT1;
      }
    }
    get countable() {
      return (this.info & BIT2) > 0;
    }
    /**
     * Whether this item was deleted or not.
     * @type {Boolean}
     */
    get deleted() {
      return (this.info & BIT3) > 0;
    }
    set deleted(doDelete) {
      if (this.deleted !== doDelete) {
        this.info ^= BIT3;
      }
    }
    markDeleted() {
      this.info |= BIT3;
    }
    /**
     * Return the creator clientID of the missing op or define missing items and return null.
     *
     * @param {Transaction} transaction
     * @param {StructStore} store
     * @return {null | number}
     */
    getMissing(transaction, store) {
      if (this.origin && this.origin.client !== this.id.client && this.origin.clock >= getState(store, this.origin.client)) {
        return this.origin.client;
      }
      if (this.rightOrigin && this.rightOrigin.client !== this.id.client && this.rightOrigin.clock >= getState(store, this.rightOrigin.client)) {
        return this.rightOrigin.client;
      }
      if (this.parent && this.parent.constructor === ID && this.id.client !== this.parent.client && this.parent.clock >= getState(store, this.parent.client)) {
        return this.parent.client;
      }
      if (this.origin) {
        this.left = getItemCleanEnd(transaction, store, this.origin);
        this.origin = this.left.lastId;
      }
      if (this.rightOrigin) {
        this.right = getItemCleanStart(transaction, this.rightOrigin);
        this.rightOrigin = this.right.id;
      }
      if (this.left && this.left.constructor === GC || this.right && this.right.constructor === GC) {
        this.parent = null;
      } else if (!this.parent) {
        if (this.left && this.left.constructor === _Item) {
          this.parent = this.left.parent;
          this.parentSub = this.left.parentSub;
        } else if (this.right && this.right.constructor === _Item) {
          this.parent = this.right.parent;
          this.parentSub = this.right.parentSub;
        }
      } else if (this.parent.constructor === ID) {
        const parentItem = getItem(store, this.parent);
        if (parentItem.constructor === GC) {
          this.parent = null;
        } else {
          this.parent = /** @type {ContentType} */
          parentItem.content.type;
        }
      }
      return null;
    }
    /**
     * @param {Transaction} transaction
     * @param {number} offset
     */
    integrate(transaction, offset) {
      if (offset > 0) {
        this.id.clock += offset;
        this.left = getItemCleanEnd(transaction, transaction.doc.store, createID(this.id.client, this.id.clock - 1));
        this.origin = this.left.lastId;
        this.content = this.content.splice(offset);
        this.length -= offset;
      }
      if (this.parent) {
        if (!this.left && (!this.right || this.right.left !== null) || this.left && this.left.right !== this.right) {
          let left = this.left;
          let o;
          if (left !== null) {
            o = left.right;
          } else if (this.parentSub !== null) {
            o = /** @type {AbstractType<any>} */
            this.parent._map.get(this.parentSub) || null;
            while (o !== null && o.left !== null) {
              o = o.left;
            }
          } else {
            o = /** @type {AbstractType<any>} */
            this.parent._start;
          }
          const conflictingItems = /* @__PURE__ */ new Set();
          const itemsBeforeOrigin = /* @__PURE__ */ new Set();
          while (o !== null && o !== this.right) {
            itemsBeforeOrigin.add(o);
            conflictingItems.add(o);
            if (compareIDs(this.origin, o.origin)) {
              if (o.id.client < this.id.client) {
                left = o;
                conflictingItems.clear();
              } else if (compareIDs(this.rightOrigin, o.rightOrigin)) {
                break;
              }
            } else if (o.origin !== null && itemsBeforeOrigin.has(getItem(transaction.doc.store, o.origin))) {
              if (!conflictingItems.has(getItem(transaction.doc.store, o.origin))) {
                left = o;
                conflictingItems.clear();
              }
            } else {
              break;
            }
            o = o.right;
          }
          this.left = left;
        }
        if (this.left !== null) {
          const right = this.left.right;
          this.right = right;
          this.left.right = this;
        } else {
          let r;
          if (this.parentSub !== null) {
            r = /** @type {AbstractType<any>} */
            this.parent._map.get(this.parentSub) || null;
            while (r !== null && r.left !== null) {
              r = r.left;
            }
          } else {
            r = /** @type {AbstractType<any>} */
            this.parent._start;
            this.parent._start = this;
          }
          this.right = r;
        }
        if (this.right !== null) {
          this.right.left = this;
        } else if (this.parentSub !== null) {
          this.parent._map.set(this.parentSub, this);
          if (this.left !== null) {
            this.left.delete(transaction);
          }
        }
        if (this.parentSub === null && this.countable && !this.deleted) {
          this.parent._length += this.length;
        }
        addStruct(transaction.doc.store, this);
        this.content.integrate(transaction, this);
        addChangedTypeToTransaction(
          transaction,
          /** @type {AbstractType<any>} */
          this.parent,
          this.parentSub
        );
        if (
          /** @type {AbstractType<any>} */
          this.parent._item !== null && /** @type {AbstractType<any>} */
          this.parent._item.deleted || this.parentSub !== null && this.right !== null
        ) {
          this.delete(transaction);
        }
      } else {
        new GC(this.id, this.length).integrate(transaction, 0);
      }
    }
    /**
     * Returns the next non-deleted item
     */
    get next() {
      let n = this.right;
      while (n !== null && n.deleted) {
        n = n.right;
      }
      return n;
    }
    /**
     * Returns the previous non-deleted item
     */
    get prev() {
      let n = this.left;
      while (n !== null && n.deleted) {
        n = n.left;
      }
      return n;
    }
    /**
     * Computes the last content address of this Item.
     */
    get lastId() {
      return this.length === 1 ? this.id : createID(this.id.client, this.id.clock + this.length - 1);
    }
    /**
     * Try to merge two items
     *
     * @param {Item} right
     * @return {boolean}
     */
    mergeWith(right) {
      if (this.constructor === right.constructor && compareIDs(right.origin, this.lastId) && this.right === right && compareIDs(this.rightOrigin, right.rightOrigin) && this.id.client === right.id.client && this.id.clock + this.length === right.id.clock && this.deleted === right.deleted && this.redone === null && right.redone === null && this.content.constructor === right.content.constructor && this.content.mergeWith(right.content)) {
        const searchMarker = (
          /** @type {AbstractType<any>} */
          this.parent._searchMarker
        );
        if (searchMarker) {
          searchMarker.forEach((marker) => {
            if (marker.p === right) {
              marker.p = this;
              if (!this.deleted && this.countable) {
                marker.index -= this.length;
              }
            }
          });
        }
        if (right.keep) {
          this.keep = true;
        }
        this.right = right.right;
        if (this.right !== null) {
          this.right.left = this;
        }
        this.length += right.length;
        return true;
      }
      return false;
    }
    /**
     * Mark this Item as deleted.
     *
     * @param {Transaction} transaction
     */
    delete(transaction) {
      if (!this.deleted) {
        const parent = (
          /** @type {AbstractType<any>} */
          this.parent
        );
        if (this.countable && this.parentSub === null) {
          parent._length -= this.length;
        }
        this.markDeleted();
        addToDeleteSet(transaction.deleteSet, this.id.client, this.id.clock, this.length);
        addChangedTypeToTransaction(transaction, parent, this.parentSub);
        this.content.delete(transaction);
      }
    }
    /**
     * @param {StructStore} store
     * @param {boolean} parentGCd
     */
    gc(store, parentGCd) {
      if (!this.deleted) {
        throw unexpectedCase();
      }
      this.content.gc(store);
      if (parentGCd) {
        replaceStruct(store, this, new GC(this.id, this.length));
      } else {
        this.content = new ContentDeleted(this.length);
      }
    }
    /**
     * Transform the properties of this type to binary and write it to an
     * BinaryEncoder.
     *
     * This is called when this Item is sent to a remote peer.
     *
     * @param {UpdateEncoderV1 | UpdateEncoderV2} encoder The encoder to write data to.
     * @param {number} offset
     */
    write(encoder, offset) {
      const origin2 = offset > 0 ? createID(this.id.client, this.id.clock + offset - 1) : this.origin;
      const rightOrigin = this.rightOrigin;
      const parentSub = this.parentSub;
      const info = this.content.getRef() & BITS5 | (origin2 === null ? 0 : BIT8) | // origin is defined
      (rightOrigin === null ? 0 : BIT7) | // right origin is defined
      (parentSub === null ? 0 : BIT6);
      encoder.writeInfo(info);
      if (origin2 !== null) {
        encoder.writeLeftID(origin2);
      }
      if (rightOrigin !== null) {
        encoder.writeRightID(rightOrigin);
      }
      if (origin2 === null && rightOrigin === null) {
        const parent = (
          /** @type {AbstractType<any>} */
          this.parent
        );
        if (parent._item !== void 0) {
          const parentItem = parent._item;
          if (parentItem === null) {
            const ykey = findRootTypeKey(parent);
            encoder.writeParentInfo(true);
            encoder.writeString(ykey);
          } else {
            encoder.writeParentInfo(false);
            encoder.writeLeftID(parentItem.id);
          }
        } else if (parent.constructor === String) {
          encoder.writeParentInfo(true);
          encoder.writeString(parent);
        } else if (parent.constructor === ID) {
          encoder.writeParentInfo(false);
          encoder.writeLeftID(parent);
        } else {
          unexpectedCase();
        }
        if (parentSub !== null) {
          encoder.writeString(parentSub);
        }
      }
      this.content.write(encoder, offset);
    }
  };
  var readItemContent = (decoder, info) => contentRefs[info & BITS5](decoder);
  var contentRefs = [
    () => {
      unexpectedCase();
    },
    // GC is not ItemContent
    readContentDeleted,
    // 1
    readContentJSON,
    // 2
    readContentBinary,
    // 3
    readContentString,
    // 4
    readContentEmbed,
    // 5
    readContentFormat,
    // 6
    readContentType,
    // 7
    readContentAny,
    // 8
    readContentDoc,
    // 9
    () => {
      unexpectedCase();
    }
    // 10 - Skip is not ItemContent
  ];
  var structSkipRefNumber = 10;
  var Skip = class extends AbstractStruct {
    get deleted() {
      return true;
    }
    delete() {
    }
    /**
     * @param {Skip} right
     * @return {boolean}
     */
    mergeWith(right) {
      if (this.constructor !== right.constructor) {
        return false;
      }
      this.length += right.length;
      return true;
    }
    /**
     * @param {Transaction} transaction
     * @param {number} offset
     */
    integrate(transaction, offset) {
      unexpectedCase();
    }
    /**
     * @param {UpdateEncoderV1 | UpdateEncoderV2} encoder
     * @param {number} offset
     */
    write(encoder, offset) {
      encoder.writeInfo(structSkipRefNumber);
      writeVarUint(encoder.restEncoder, this.length - offset);
    }
    /**
     * @param {Transaction} transaction
     * @param {StructStore} store
     * @return {null | number}
     */
    getMissing(transaction, store) {
      return null;
    }
  };
  var glo = (
    /** @type {any} */
    typeof globalThis !== "undefined" ? globalThis : typeof window !== "undefined" ? window : typeof global !== "undefined" ? global : {}
  );
  var importIdentifier = "__ $YJS$ __";
  if (glo[importIdentifier] === true) {
    console.error("Yjs was already imported. This breaks constructor checks and will lead to issues! - https://github.com/yjs/yjs/issues/438");
  }
  glo[importIdentifier] = true;

// packages/sync/node_modules/y-protocols/awareness.js
  var outdatedTimeout = 3e4;
  var Awareness = class extends Observable {
    /**
     * @param {Y.Doc} doc
     */
    constructor(doc2) {
      super();
      this.doc = doc2;
      this.clientID = doc2.clientID;
      this.states = /* @__PURE__ */ new Map();
      this.meta = /* @__PURE__ */ new Map();
      this._checkInterval = /** @type {any} */
      setInterval(() => {
        const now = getUnixTime();
        if (this.getLocalState() !== null && outdatedTimeout / 2 <= now - /** @type {{lastUpdated:number}} */
        this.meta.get(this.clientID).lastUpdated) {
          this.setLocalState(this.getLocalState());
        }
        const remove = [];
        this.meta.forEach((meta, clientid) => {
          if (clientid !== this.clientID && outdatedTimeout <= now - meta.lastUpdated && this.states.has(clientid)) {
            remove.push(clientid);
          }
        });
        if (remove.length > 0) {
          removeAwarenessStates(this, remove, "timeout");
        }
      }, floor(outdatedTimeout / 10));
      doc2.on("destroy", () => {
        this.destroy();
      });
      this.setLocalState({});
    }
    destroy() {
      this.emit("destroy", [this]);
      this.setLocalState(null);
      super.destroy();
      clearInterval(this._checkInterval);
    }
    /**
     * @return {Object<string,any>|null}
     */
    getLocalState() {
      return this.states.get(this.clientID) || null;
    }
    /**
     * @param {Object<string,any>|null} state
     */
    setLocalState(state) {
      const clientID = this.clientID;
      const currLocalMeta = this.meta.get(clientID);
      const clock = currLocalMeta === void 0 ? 0 : currLocalMeta.clock + 1;
      const prevState = this.states.get(clientID);
      if (state === null) {
        this.states.delete(clientID);
      } else {
        this.states.set(clientID, state);
      }
      this.meta.set(clientID, {
        clock,
        lastUpdated: getUnixTime()
      });
      const added = [];
      const updated = [];
      const filteredUpdated = [];
      const removed = [];
      if (state === null) {
        removed.push(clientID);
      } else if (prevState == null) {
        if (state != null) {
          added.push(clientID);
        }
      } else {
        updated.push(clientID);
        if (!equalityDeep(prevState, state)) {
          filteredUpdated.push(clientID);
        }
      }
      if (added.length > 0 || filteredUpdated.length > 0 || removed.length > 0) {
        this.emit("change", [{ added, updated: filteredUpdated, removed }, "local"]);
      }
      this.emit("update", [{ added, updated, removed }, "local"]);
    }
    /**
     * @param {string} field
     * @param {any} value
     */
    setLocalStateField(field, value) {
      const state = this.getLocalState();
      if (state !== null) {
        this.setLocalState({
          ...state,
          [field]: value
        });
      }
    }
    /**
     * @return {Map<number,Object<string,any>>}
     */
    getStates() {
      return this.states;
    }
  };
  var removeAwarenessStates = (awareness, clients, origin2) => {
    const removed = [];
    for (let i = 0; i < clients.length; i++) {
      const clientID = clients[i];
      if (awareness.states.has(clientID)) {
        awareness.states.delete(clientID);
        if (clientID === awareness.clientID) {
          const curMeta = (
            /** @type {MetaClientState} */
            awareness.meta.get(clientID)
          );
          awareness.meta.set(clientID, {
            clock: curMeta.clock + 1,
            lastUpdated: getUnixTime()
          });
        }
        removed.push(clientID);
      }
    }
    if (removed.length > 0) {
      awareness.emit("change", [{ added: [], updated: [], removed }, origin2]);
      awareness.emit("update", [{ added: [], updated: [], removed }, origin2]);
    }
  };

// packages/sync/build-module/config.mjs
  var CRDT_DOC_VERSION = 1;
  var CRDT_DOC_META_PERSISTENCE_KEY = "fromPersistence";
  var CRDT_RECORD_MAP_KEY = "document";
  var CRDT_STATE_MAP_KEY = "state";
  var CRDT_STATE_MAP_SAVED_AT_KEY = "savedAt";
  var CRDT_STATE_MAP_SAVED_BY_KEY = "savedBy";
  var CRDT_STATE_MAP_VERSION_KEY = "version";
  var LOCAL_EDITOR_ORIGIN = "gutenberg";
  var LOCAL_SYNC_MANAGER_ORIGIN = "syncManager";
  var LOCAL_UNDO_IGNORED_ORIGIN = "gutenberg-undo-ignored";

// packages/sync/build-module/errors.mjs
  var ConnectionErrorCode = /* @__PURE__ */ ((ConnectionErrorCode2) => {
    ConnectionErrorCode2["AUTHENTICATION_FAILED"] = "authentication-failed";
    ConnectionErrorCode2["CONNECTION_EXPIRED"] = "connection-expired";
    ConnectionErrorCode2["CONNECTION_LIMIT_EXCEEDED"] = "connection-limit-exceeded";
    ConnectionErrorCode2["DOCUMENT_SIZE_LIMIT_EXCEEDED"] = "document-size-limit-exceeded";
    ConnectionErrorCode2["UNKNOWN_ERROR"] = "unknown-error";
    return ConnectionErrorCode2;
  })(ConnectionErrorCode || {});
  var ConnectionError = class extends Error {
    constructor(code = "unknown-error", message) {
      super(message);
      this.code = code;
      this.name = "ConnectionError";
    }
  };

// packages/sync/build-module/lock-unlock.mjs
  var import_private_apis = __toESM(require_private_apis(), 1);
  var { lock, unlock } = (0, import_private_apis.__dangerousOptInToUnstableAPIsOnlyForCoreModules)(
    "I acknowledge private features are not for use in themes or plugins and doing so will break in the next version of WordPress.",
    "@wordpress/sync"
  );

// packages/sync/build-module/performance.mjs
  function logPerformanceTiming(fn) {
    return function(...args2) {
      const start = performance.now();
      const result = fn.apply(this, args2);
      const end = performance.now();
      console.log(
        `[SyncManager][performance]: ${fn.name} took ${(end - start).toFixed(2)} ms`
      );
      return result;
    };
  }
  function passThru(fn) {
    return ((...args2) => fn(...args2));
  }
  function yieldToEventLoop(fn) {
    return function(...args2) {
      setTimeout(() => {
        fn.apply(this, args2);
      }, 0);
    };
  }

// packages/sync/build-module/providers/index.mjs
  var import_hooks3 = __toESM(require_hooks(), 1);

// packages/sync/build-module/providers/http-polling/polling-manager.mjs
  var import_hooks2 = __toESM(require_hooks(), 1);

// packages/sync/node_modules/y-protocols/sync.js
  var messageYjsSyncStep1 = 0;
  var messageYjsSyncStep2 = 1;
  var messageYjsUpdate = 2;
  var writeSyncStep1 = (encoder, doc2) => {
    writeVarUint(encoder, messageYjsSyncStep1);
    const sv = encodeStateVector(doc2);
    writeVarUint8Array(encoder, sv);
  };
  var writeSyncStep2 = (encoder, doc2, encodedStateVector) => {
    writeVarUint(encoder, messageYjsSyncStep2);
    writeVarUint8Array(encoder, encodeStateAsUpdate(doc2, encodedStateVector));
  };
  var readSyncStep1 = (decoder, encoder, doc2) => writeSyncStep2(encoder, doc2, readVarUint8Array(decoder));
  var readSyncStep2 = (decoder, doc2, transactionOrigin, errorHandler) => {
    try {
      applyUpdate(doc2, readVarUint8Array(decoder), transactionOrigin);
    } catch (error) {
      if (errorHandler != null) errorHandler(
        /** @type {Error} */
        error
      );
      console.error("Caught error while handling a Yjs update", error);
    }
  };
  var readUpdate2 = readSyncStep2;
  var readSyncMessage = (decoder, encoder, doc2, transactionOrigin, errorHandler) => {
    const messageType = readVarUint(decoder);
    switch (messageType) {
      case messageYjsSyncStep1:
        readSyncStep1(decoder, encoder, doc2);
        break;
      case messageYjsSyncStep2:
        readSyncStep2(decoder, doc2, transactionOrigin, errorHandler);
        break;
      case messageYjsUpdate:
        readUpdate2(decoder, doc2, transactionOrigin, errorHandler);
        break;
      default:
        throw new Error("Unknown message type");
    }
    return messageType;
  };

// packages/sync/build-module/providers/http-polling/config.mjs
  var import_hooks = __toESM(require_hooks(), 1);
  var DEFAULT_CLIENT_LIMIT_PER_ROOM = 3;
  var MAX_ERROR_BACKOFF_IN_MS = 30 * 1e3;
  var MAX_UPDATE_SIZE_IN_BYTES = 1 * 1024 * 1024;
  var POLLING_INTERVAL_IN_MS = (0, import_hooks.applyFilters)(
    "sync.pollingManager.pollingInterval",
    4e3
    // 4 seconds
  );
  var POLLING_INTERVAL_WITH_COLLABORATORS_IN_MS = (0, import_hooks.applyFilters)(
    "sync.pollingManager.pollingIntervalWithCollaborators",
    1e3
    // 1 second
  );
  var POLLING_INTERVAL_BACKGROUND_TAB_IN_MS = 25 * 1e3;

// packages/sync/build-module/providers/http-polling/types.mjs
  var SyncUpdateType = /* @__PURE__ */ ((SyncUpdateType2) => {
    SyncUpdateType2["COMPACTION"] = "compaction";
    SyncUpdateType2["SYNC_STEP_1"] = "sync_step1";
    SyncUpdateType2["SYNC_STEP_2"] = "sync_step2";
    SyncUpdateType2["UPDATE"] = "update";
    return SyncUpdateType2;
  })(SyncUpdateType || {});

// packages/sync/build-module/providers/http-polling/utils.mjs
  var import_api_fetch = __toESM(require_api_fetch(), 1);
  var SYNC_API_PATH = "/wp-sync/v1/updates";
  function uint8ArrayToBase64(data) {
    let binary = "";
    const len = data.byteLength;
    for (let i = 0; i < len; i++) {
      binary += String.fromCharCode(data[i]);
    }
    return globalThis.btoa(binary);
  }
  function base64ToUint8Array(base64) {
    const binaryString = globalThis.atob(base64);
    const len = binaryString.length;
    const bytes = new Uint8Array(len);
    for (let i = 0; i < len; i++) {
      bytes[i] = binaryString.charCodeAt(i);
    }
    return bytes;
  }
  function createSyncUpdate(data, type) {
    return {
      data: uint8ArrayToBase64(data),
      type
    };
  }
  function createUpdateQueue(initial = [], paused = true) {
    let isPaused = paused;
    const updates = [...initial];
    return {
      add(update) {
        updates.push(update);
      },
      addBulk(bulkUpdates) {
        if (0 === bulkUpdates.length) {
          return;
        }
        updates.push(...bulkUpdates);
      },
      clear() {
        updates.splice(0, updates.length);
      },
      get() {
        if (isPaused) {
          return [];
        }
        return updates.splice(0, updates.length);
      },
      pause() {
        isPaused = true;
      },
      restore(restoredUpdates) {
        const filtered = restoredUpdates.filter(
          (u) => u.type !== SyncUpdateType.COMPACTION
        );
        if (0 === filtered.length) {
          return;
        }
        updates.unshift(...filtered);
      },
      resume() {
        isPaused = false;
      },
      size() {
        return updates.length;
      }
    };
  }
  async function postSyncUpdate(payload) {
    const response = await (0, import_api_fetch.default)({
      body: JSON.stringify(payload),
      headers: {
        "Content-Type": "application/json"
      },
      method: "POST",
      parse: false,
      path: SYNC_API_PATH
    });
    if (!response.ok) {
      throw new Error(
        `Sync update failed with status ${response.status}`
      );
    }
    return await response.json();
  }
  function postSyncUpdateNonBlocking(payload) {
    if (payload.rooms.length === 0) {
      return;
    }
    (0, import_api_fetch.default)({
      body: JSON.stringify(payload),
      headers: { "Content-Type": "application/json" },
      keepalive: true,
      method: "POST",
      parse: false,
      path: SYNC_API_PATH
    }).catch(() => {
    });
  }
  function intValueOrDefault(value, defaultValue) {
    const intValue = parseInt(String(value), 10);
    return isNaN(intValue) ? defaultValue : intValue;
  }

// packages/sync/build-module/providers/http-polling/polling-manager.mjs
  var POLLING_MANAGER_ORIGIN = "polling-manager";
  var roomStates = /* @__PURE__ */ new Map();
  function createDeprecatedCompactionUpdate(updates) {
    const mergeable = updates.filter(
      (u) => [SyncUpdateType.COMPACTION, SyncUpdateType.UPDATE].includes(
        u.type
      )
    ).map((u) => base64ToUint8Array(u.data));
    return createSyncUpdate(
      mergeUpdatesV2(mergeable),
      SyncUpdateType.COMPACTION
    );
  }
  function createSyncStep1Update(doc2) {
    const encoder = createEncoder();
    writeSyncStep1(encoder, doc2);
    return createSyncUpdate(
      toUint8Array(encoder),
      SyncUpdateType.SYNC_STEP_1
    );
  }
  function createSyncStep2Update(doc2, step1) {
    const decoder = createDecoder(step1);
    const encoder = createEncoder();
    readSyncMessage(
      decoder,
      encoder,
      doc2,
      POLLING_MANAGER_ORIGIN
    );
    return createSyncUpdate(
      toUint8Array(encoder),
      SyncUpdateType.SYNC_STEP_2
    );
  }
  function processAwarenessUpdate(state, awareness) {
    const currentStates = awareness.getStates();
    const added = /* @__PURE__ */ new Set();
    const updated = /* @__PURE__ */ new Set();
    const removed = new Set(
      Array.from(currentStates.keys()).filter(
        (clientId) => !state[clientId]
      )
    );
    Object.entries(state).forEach(([clientIdString, awarenessState]) => {
      const clientId = Number(clientIdString);
      if (clientId === awareness.clientID) {
        return;
      }
      if (null === awarenessState) {
        currentStates.delete(clientId);
        removed.add(clientId);
        return;
      }
      if (!currentStates.has(clientId)) {
        currentStates.set(clientId, awarenessState);
        added.add(clientId);
        return;
      }
      const currentState = currentStates.get(clientId);
      if (JSON.stringify(currentState) !== JSON.stringify(awarenessState)) {
        currentStates.set(clientId, awarenessState);
        updated.add(clientId);
      }
    });
    if (added.size + updated.size > 0) {
      awareness.emit("change", [
        {
          added: Array.from(added),
          updated: Array.from(updated),
          // Left blank on purpose, as the removal of clients is handled in the if condition below.
          removed: []
        }
      ]);
    }
    if (removed.size > 0) {
      removeAwarenessStates(
        awareness,
        Array.from(removed),
        POLLING_MANAGER_ORIGIN
      );
    }
  }
  function processDocUpdate(update, doc2, onSync) {
    const data = base64ToUint8Array(update.data);
    switch (update.type) {
      case SyncUpdateType.SYNC_STEP_1: {
        return createSyncStep2Update(doc2, data);
      }
      case SyncUpdateType.SYNC_STEP_2: {
        const decoder = createDecoder(data);
        const encoder = createEncoder();
        readSyncMessage(
          decoder,
          encoder,
          doc2,
          POLLING_MANAGER_ORIGIN
        );
        onSync();
        return;
      }
      case SyncUpdateType.COMPACTION:
      case SyncUpdateType.UPDATE: {
        applyUpdateV2(doc2, data, POLLING_MANAGER_ORIGIN);
      }
    }
  }
  function checkConnectionLimit(awareness, roomState) {
    if (!roomState.isPrimaryRoom || hasCheckedConnectionLimit) {
      return false;
    }
    hasCheckedConnectionLimit = true;
    const maxClientsPerRoom = (0, import_hooks2.applyFilters)(
      "sync.pollingProvider.maxClientsPerRoom",
      DEFAULT_CLIENT_LIMIT_PER_ROOM,
      roomState.room
    );
    const clientCount = Object.keys(awareness).length;
    const validatedLimit = intValueOrDefault(
      maxClientsPerRoom,
      DEFAULT_CLIENT_LIMIT_PER_ROOM
    );
    if (clientCount > validatedLimit) {
      roomState.log("Connection limit exceeded", {
        clientCount,
        maxClientsPerRoom: validatedLimit,
        room: roomState.room
      });
      return true;
    }
    return false;
  }
  var areListenersRegistered = false;
  var hasCheckedConnectionLimit = false;
  var hasCollaborators = false;
  var isActiveBrowser = "visible" === document.visibilityState;
  var isPolling = false;
  var isUnloadPending = false;
  var pollInterval = POLLING_INTERVAL_IN_MS;
  var pollingTimeoutId = null;
  function handleBeforeUnload() {
    isUnloadPending = true;
  }
  function handlePageHide() {
    const rooms = Array.from(roomStates.entries()).map(
      ([room, state]) => ({
        after: 0,
        awareness: null,
        client_id: state.clientId,
        room,
        updates: []
      })
    );
    postSyncUpdateNonBlocking({ rooms });
  }
  function handleVisibilityChange() {
    const wasActive = isActiveBrowser;
    isActiveBrowser = document.visibilityState === "visible";
    if (isActiveBrowser && !wasActive) {
      if (pollingTimeoutId) {
        clearTimeout(pollingTimeoutId);
        pollingTimeoutId = null;
        poll();
      }
    }
  }
  function poll() {
    isPolling = true;
    pollingTimeoutId = null;
    async function start() {
      if (0 === roomStates.size) {
        isPolling = false;
        return;
      }
      isUnloadPending = false;
      roomStates.forEach((state) => {
        state.onStatusChange({ status: "connecting" });
      });
      const payload = {
        rooms: Array.from(roomStates.entries()).map(
          ([room, state]) => ({
            after: state.endCursor ?? 0,
            awareness: state.localAwarenessState,
            client_id: state.clientId,
            room,
            updates: state.updateQueue.get()
          })
        )
      };
      try {
        const { rooms } = await postSyncUpdate(payload);
        roomStates.forEach((state) => {
          state.onStatusChange({ status: "connected" });
        });
        hasCollaborators = false;
        rooms.forEach((room) => {
          if (!roomStates.has(room.room)) {
            return;
          }
          const roomState = roomStates.get(room.room);
          roomState.endCursor = room.end_cursor;
          if (checkConnectionLimit(room.awareness, roomState)) {
            roomState.onStatusChange({
              status: "disconnected",
              error: new ConnectionError(
                ConnectionErrorCode.CONNECTION_LIMIT_EXCEEDED,
                "Connection limit exceeded"
              )
            });
            unregisterRoom(room.room);
            return;
          }
          roomState.processAwarenessUpdate(room.awareness);
          if (roomState.isPrimaryRoom && Object.keys(room.awareness).length > 1) {
            hasCollaborators = true;
            roomStates.forEach((state) => {
              state.updateQueue.resume();
            });
          }
          const responseUpdates = [];
          for (const update of room.updates) {
            try {
              const response = roomState.processDocUpdate(update);
              if (response) {
                responseUpdates.push(response);
              }
            } catch (error) {
              roomState.log(
                "Failed to apply sync update",
                { error, update },
                "error",
                true
                // force
              );
            }
          }
          roomState.updateQueue.addBulk(responseUpdates);
          if (room.should_compact) {
            roomState.log("Server requested compaction update");
            roomState.updateQueue.clear();
            roomState.updateQueue.add(
              roomState.createCompactionUpdate()
            );
          } else if (room.compaction_request) {
            roomState.log("Server requested (old) compaction update");
            roomState.updateQueue.add(
              createDeprecatedCompactionUpdate(
                room.compaction_request
              )
            );
          }
        });
        if (isActiveBrowser && hasCollaborators) {
          pollInterval = POLLING_INTERVAL_WITH_COLLABORATORS_IN_MS;
        } else if (isActiveBrowser) {
          pollInterval = POLLING_INTERVAL_IN_MS;
        } else {
          pollInterval = POLLING_INTERVAL_BACKGROUND_TAB_IN_MS;
        }
      } catch (error) {
        pollInterval = Math.min(
          pollInterval * 2,
          MAX_ERROR_BACKOFF_IN_MS
        );
        for (const room of payload.rooms) {
          if (!roomStates.has(room.room)) {
            continue;
          }
          const state = roomStates.get(room.room);
          if (room.updates.length > 0 && state.endCursor > 0) {
            state.updateQueue.clear();
            state.updateQueue.add(state.createCompactionUpdate());
          } else if (room.updates.length > 0) {
            state.updateQueue.restore(room.updates);
          }
          state.log(
            "Error posting sync update, will retry with backoff",
            { error, nextPoll: pollInterval },
            "error",
            true
            // force
          );
        }
        if (!isUnloadPending) {
          roomStates.forEach((state) => {
            state.onStatusChange({
              status: "disconnected",
              canManuallyRetry: true,
              willAutoRetryInMs: pollInterval
            });
          });
        }
      }
      pollingTimeoutId = setTimeout(poll, pollInterval);
    }
    void start();
  }
  function registerRoom({
    room,
    doc: doc2,
    awareness,
    log,
    onSync,
    onStatusChange
  }) {
    if (roomStates.has(room)) {
      return;
    }
    const updateQueue = createUpdateQueue([createSyncStep1Update(doc2)]);
    const isPrimaryRoom = 0 === roomStates.size;
    function onAwarenessUpdate() {
      roomState.localAwarenessState = awareness.getLocalState() ?? {};
    }
    function onDocUpdate(update, origin2) {
      if (POLLING_MANAGER_ORIGIN === origin2) {
        return;
      }
      if (update.byteLength > MAX_UPDATE_SIZE_IN_BYTES) {
        const state = roomStates.get(room);
        if (!state) {
          return;
        }
        state.log("Document size limit exceeded", {
          maxUpdateSizeInBytes: MAX_UPDATE_SIZE_IN_BYTES,
          updateSizeInBytes: update.byteLength
        });
        state.onStatusChange({
          status: "disconnected",
          error: new ConnectionError(
            ConnectionErrorCode.DOCUMENT_SIZE_LIMIT_EXCEEDED,
            "Document size limit exceeded"
          )
        });
        unregisterRoom(room);
      }
      updateQueue.add(createSyncUpdate(update, SyncUpdateType.UPDATE));
    }
    function unregister() {
      doc2.off("updateV2", onDocUpdate);
      awareness.off("change", onAwarenessUpdate);
      updateQueue.clear();
    }
    const roomState = {
      clientId: doc2.clientID,
      createCompactionUpdate: () => createSyncUpdate(
        encodeStateAsUpdateV2(doc2),
        SyncUpdateType.COMPACTION
      ),
      endCursor: 0,
      isPrimaryRoom,
      localAwarenessState: awareness.getLocalState() ?? {},
      log,
      onStatusChange,
      processAwarenessUpdate: (state) => processAwarenessUpdate(state, awareness),
      processDocUpdate: (update) => processDocUpdate(update, doc2, onSync),
      room,
      unregister,
      updateQueue
    };
    doc2.on("updateV2", onDocUpdate);
    awareness.on("change", onAwarenessUpdate);
    roomStates.set(room, roomState);
    if (!areListenersRegistered) {
      window.addEventListener("beforeunload", handleBeforeUnload);
      window.addEventListener("pagehide", handlePageHide);
      document.addEventListener("visibilitychange", handleVisibilityChange);
      areListenersRegistered = true;
    }
    if (!isPolling) {
      poll();
    }
  }
  function unregisterRoom(room) {
    const state = roomStates.get(room);
    if (state) {
      const rooms = [
        {
          after: 0,
          awareness: null,
          client_id: state.clientId,
          room,
          updates: []
        }
      ];
      postSyncUpdateNonBlocking({ rooms });
      state.unregister();
      roomStates.delete(room);
    }
    if (0 === roomStates.size && areListenersRegistered) {
      window.removeEventListener("beforeunload", handleBeforeUnload);
      window.removeEventListener("pagehide", handlePageHide);
      document.removeEventListener(
        "visibilitychange",
        handleVisibilityChange
      );
      areListenersRegistered = false;
      hasCheckedConnectionLimit = false;
    }
  }
  function retryNow() {
    pollInterval = POLLING_INTERVAL_IN_MS * 2;
    if (pollingTimeoutId) {
      clearTimeout(pollingTimeoutId);
      pollingTimeoutId = null;
      poll();
    }
  }
  var pollingManager = {
    registerRoom,
    retryNow,
    unregisterRoom
  };

// packages/sync/build-module/providers/http-polling/http-polling-provider.mjs
  var HttpPollingProvider = class extends ObservableV2 {
    constructor(options) {
      super();
      this.options = options;
      this.log("Initializing", { room: options.room });
      this.awareness = options.awareness ?? new Awareness(options.ydoc);
      this.connect();
    }
    awareness;
    status = "disconnected";
    synced = false;
    /**
     * Connect to the endpoint and initialize sync.
     */
    connect() {
      this.log("Connecting");
      pollingManager.registerRoom({
        room: this.options.room,
        doc: this.options.ydoc,
        awareness: this.awareness,
        log: this.log,
        onStatusChange: this.emitStatus,
        onSync: this.onSync
      });
    }
    /**
     * Destroy the provider and cleanup resources.
     */
    destroy() {
      this.disconnect();
      super.destroy();
    }
    /**
     * Disconnect the provider and allow reconnection later.
     */
    disconnect() {
      this.log("Disconnecting");
      pollingManager.unregisterRoom(this.options.room);
      this.emitStatus({ status: "disconnected" });
    }
    /**
     * Emit connection status, passing the full object through so that
     * additional fields (e.g. `willAutoRetryInMs`) are preserved for consumers.
     *
     * @param connectionStatus The connection status object
     */
    emitStatus = (connectionStatus) => {
      const { status } = connectionStatus;
      const error = status === "disconnected" ? connectionStatus.error : void 0;
      if (this.status === status && !error) {
        return;
      }
      if (status === "connecting" && this.status !== "disconnected") {
        return;
      }
      this.log("Status change", { status, error });
      this.status = status;
      this.emit("status", [connectionStatus]);
    };
    /**
     * Log debug messages if debugging is enabled.
     *
     * @param message    The debug message
     * @param debug      Additional debug information
     * @param errorLevel The console method to use for logging
     * @param force      Whether to force logging regardless of debug setting
     */
    log = (message, debug = {}, errorLevel = "log", force = false) => {
      if (!this.options.debug && !force) {
        return;
      }
      const logFn = console[errorLevel] || console.log;
      logFn(`[${this.constructor.name}]: ${message}`, {
        room: this.options.room,
        ...debug
      });
    };
    /**
     * Handle synchronization events from the polling manager.
     */
    onSync = () => {
      if (!this.synced) {
        this.synced = true;
        this.log("Synced");
      }
    };
  };
  function createHttpPollingProvider() {
    return async ({
      awareness,
      objectType,
      objectId,
      ydoc
    }) => {
      const room = objectId ? `${objectType}:${objectId}` : objectType;
      const provider = new HttpPollingProvider({
        awareness,
        // debug: true,
        room,
        ydoc
      });
      return {
        destroy: () => provider.destroy(),
        // Adapter: ObservableV2.on is compatible with ProviderOn
        // The callback receives data as the first parameter
        on: (event, callback) => {
          provider.on(event, callback);
        }
      };
    };
  }

// packages/sync/build-module/providers/index.mjs
  var providerCreators = null;
  function getDefaultProviderCreators() {
    return [createHttpPollingProvider()];
  }
  function isProviderCreator(creator) {
    return "function" === typeof creator;
  }
  function getProviderCreators() {
    if (providerCreators) {
      return providerCreators;
    }
    if (!window._wpCollaborationEnabled) {
      return [];
    }
    const filteredProviderCreators = (0, import_hooks3.applyFilters)(
      "sync.providers",
      getDefaultProviderCreators()
    );
    if (!Array.isArray(filteredProviderCreators)) {
      providerCreators = [];
      return providerCreators;
    }
    providerCreators = filteredProviderCreators.filter(isProviderCreator);
    return providerCreators;
  }

// packages/sync/build-module/y-utilities/y-multidoc-undomanager.mjs
  var popStackItem2 = (mum, type) => {
    const stack = type === "undo" ? mum.undoStack : mum.redoStack;
    while (stack.length > 0) {
      const um = (
        /** @type {Y.UndoManager} */
        stack.pop()
      );
      const prevUmStack = type === "undo" ? um.undoStack : um.redoStack;
      const stackItem = (
        /** @type {any} */
        prevUmStack.pop()
      );
      let actionPerformed = false;
      if (type === "undo") {
        um.undoStack = [stackItem];
        actionPerformed = um.undo() !== null;
        um.undoStack = prevUmStack;
      } else {
        um.redoStack = [stackItem];
        actionPerformed = um.redo() !== null;
        um.redoStack = prevUmStack;
      }
      if (actionPerformed) {
        return stackItem;
      }
    }
    return null;
  };
  var YMultiDocUndoManager = class extends Observable {
    /**
     * @param {Y.AbstractType<any>|Array<Y.AbstractType<any>>} typeScope Accepts either a single type, or an array of types
     * @param {ConstructorParameters<typeof Y.UndoManager>[1]} opts
     */
    constructor(typeScope = [], opts = {}) {
      super();
      this.docs = /* @__PURE__ */ new Map();
      this.trackedOrigins = opts.trackedOrigins || /* @__PURE__ */ new Set([null]);
      opts.trackedOrigins = this.trackedOrigins;
      this._defaultOpts = opts;
      this.undoStack = [];
      this.redoStack = [];
      this.addToScope(typeScope);
    }
    /**
     * @param {Array<Y.AbstractType<any>> | Y.AbstractType<any>} ytypes
     */
    addToScope(ytypes) {
      ytypes = isArray(ytypes) ? ytypes : [ytypes];
      ytypes.forEach((ytype) => {
        const ydoc = (
          /** @type {Y.Doc} */
          ytype.doc
        );
        const um = setIfUndefined(this.docs, ydoc, () => {
          const um2 = new UndoManager([ytype], this._defaultOpts);
          um2.on(
            "stack-cleared",
            /** @param {any} opts */
            ({
              undoStackCleared,
              redoStackCleared
            }) => {
              this.clear(undoStackCleared, redoStackCleared);
            }
          );
          ydoc.on("destroy", () => {
            this.docs.delete(ydoc);
            this.undoStack = this.undoStack.filter(
              (um3) => um3.doc !== ydoc
            );
            this.redoStack = this.redoStack.filter(
              (um3) => um3.doc !== ydoc
            );
          });
          um2.on(
            "stack-item-added",
            /** @param {any} change */
            (change) => {
              const stack = change.type === "undo" ? this.undoStack : this.redoStack;
              stack.push(um2);
              this.emit("stack-item-added", [
                { ...change, ydoc },
                this
              ]);
            }
          );
          um2.on(
            "stack-item-updated",
            /** @param {any} change */
            (change) => {
              this.emit("stack-item-updated", [
                { ...change, ydoc },
                this
              ]);
            }
          );
          um2.on(
            "stack-item-popped",
            /** @param {any} change */
            (change) => {
              this.emit("stack-item-popped", [
                { ...change, ydoc },
                this
              ]);
            }
          );
          return um2;
        });
        if (um.scope.every((yt) => yt !== ytype)) {
          um.scope.push(ytype);
        }
      });
    }
    /**
     * @param {any} origin
     */
    /* c8 ignore next 3 */
    addTrackedOrigin(origin2) {
      this.trackedOrigins.add(origin2);
    }
    /**
     * @param {any} origin
     */
    /* c8 ignore next 3 */
    removeTrackedOrigin(origin2) {
      this.trackedOrigins.delete(origin2);
    }
    /**
     * Undo last changes on type.
     *
     * @return {any?} Returns StackItem if a change was applied
     */
    undo() {
      return popStackItem2(this, "undo");
    }
    /**
     * Redo last undo operation.
     *
     * @return {any?} Returns StackItem if a change was applied
     */
    redo() {
      return popStackItem2(this, "redo");
    }
    clear(clearUndoStack = true, clearRedoStack = true) {
      if (clearUndoStack && this.canUndo() || clearRedoStack && this.canRedo()) {
        this.docs.forEach((um) => {
          clearUndoStack && (this.undoStack = []);
          clearRedoStack && (this.redoStack = []);
          um.clear(clearUndoStack, clearRedoStack);
        });
        this.emit("stack-cleared", [
          {
            undoStackCleared: clearUndoStack,
            redoStackCleared: clearRedoStack
          }
        ]);
      }
    }
    /* c8 ignore next 5 */
    stopCapturing() {
      this.docs.forEach((um) => {
        um.stopCapturing();
      });
    }
    /**
     * Are undo steps available?
     *
     * @return {boolean} `true` if undo is possible
     */
    canUndo() {
      return this.undoStack.length > 0;
    }
    /**
     * Are redo steps available?
     *
     * @return {boolean} `true` if redo is possible
     */
    canRedo() {
      return this.redoStack.length > 0;
    }
    destroy() {
      this.docs.forEach((um) => um.destroy());
      super.destroy();
    }
  };

// packages/sync/build-module/undo-manager.mjs
  function createUndoManager() {
    const yUndoManager = new YMultiDocUndoManager([], {
      // Throttle undo/redo captures after 500ms of inactivity.
      // 500 was selected from subjective local UX testing, shorter timeouts
      // may cause mid-word undo stack items.
      captureTimeout: 500,
      // Ensure that we only scope the undo/redo to the current editor.
      // The yjs document's clientID is added once it's available.
      trackedOrigins: /* @__PURE__ */ new Set([LOCAL_EDITOR_ORIGIN])
    });
    return {
      /**
       * Record changes into the history.
       * Since Yjs automatically tracks changes, this method translates the WordPress
       * HistoryRecord format into Yjs operations.
       *
       * @param _record   A record of changes to record.
       * @param _isStaged Whether to immediately create an undo point or not.
       */
      addRecord(_record, _isStaged = false) {
      },
      /**
       * Add a Yjs map to the scope of the undo manager.
       *
       * @param {Y.Map< any >} ymap                     The Yjs map to add to the scope.
       * @param                handlers
       * @param                handlers.addUndoMeta
       * @param                handlers.restoreUndoMeta
       */
      addToScope(ymap, handlers) {
        if (ymap.doc === null) {
          return;
        }
        const ydoc = ymap.doc;
        yUndoManager.addToScope(ymap);
        const { addUndoMeta, restoreUndoMeta } = handlers;
        yUndoManager.on("stack-item-added", (event) => {
          addUndoMeta(ydoc, event.stackItem.meta);
        });
        yUndoManager.on("stack-item-popped", (event) => {
          restoreUndoMeta(ydoc, event.stackItem.meta);
        });
      },
      /**
       * Undo the last recorded changes.
       *
       */
      undo() {
        if (!yUndoManager.canUndo()) {
          return;
        }
        yUndoManager.undo();
        return [];
      },
      /**
       * Redo the last undone changes.
       */
      redo() {
        if (!yUndoManager.canRedo()) {
          return;
        }
        yUndoManager.redo();
        return [];
      },
      /**
       * Check if there are changes that can be undone.
       *
       * @return {boolean} Whether there are changes to undo.
       */
      hasUndo() {
        return yUndoManager.canUndo();
      },
      /**
       * Check if there are changes that can be redone.
       *
       * @return {boolean} Whether there are changes to redo.
       */
      hasRedo() {
        return yUndoManager.canRedo();
      },
      /**
       * Stop capturing changes into the current undo item.
       * The next change will create a new undo item.
       */
      stopCapturing() {
        yUndoManager.stopCapturing();
      }
    };
  }

// packages/sync/build-module/utils.mjs
  function createYjsDoc(documentMeta = {}) {
    const metaMap = new Map(
      Object.entries(documentMeta)
    );
    return new Doc({ meta: metaMap });
  }
  function initializeYjsDoc(ydoc) {
    const stateMap = ydoc.getMap(CRDT_STATE_MAP_KEY);
    stateMap.set(CRDT_STATE_MAP_VERSION_KEY, CRDT_DOC_VERSION);
  }
  function markEntityAsSaved(ydoc) {
    const recordMeta = ydoc.getMap(CRDT_STATE_MAP_KEY);
    recordMeta.set(CRDT_STATE_MAP_SAVED_AT_KEY, Date.now());
    recordMeta.set(CRDT_STATE_MAP_SAVED_BY_KEY, ydoc.clientID);
  }
  function pseudoRandomID() {
    return Math.floor(Math.random() * 1e9);
  }
  function serializeCrdtDoc(crdtDoc) {
    return JSON.stringify({
      document: toBase64(encodeStateAsUpdateV2(crdtDoc)),
      updateId: pseudoRandomID()
      // helps with debugging
    });
  }
  function deserializeCrdtDoc(serializedCrdtDoc) {
    try {
      const { document: document2 } = JSON.parse(serializedCrdtDoc);
      const docMeta = {
        [CRDT_DOC_META_PERSISTENCE_KEY]: true
      };
      const ydoc = createYjsDoc(docMeta);
      const yupdate = fromBase64(document2);
      applyUpdateV2(ydoc, yupdate);
      ydoc.clientID = pseudoRandomID();
      return ydoc;
    } catch (e) {
      return null;
    }
  }

// packages/sync/build-module/manager.mjs
  function getEntityId(objectType, objectId) {
    return `${objectType}_${objectId}`;
  }
  function createSyncManager(debug = false) {
    const debugWrap = debug ? logPerformanceTiming : passThru;
    const collectionStates = /* @__PURE__ */ new Map();
    const entityStates = /* @__PURE__ */ new Map();
    let undoManager;
    function log(component, message, entityId, context = {}) {
      if (!debug) {
        return;
      }
      console.log(`[SyncManager][${component}]: ${message}`, {
        ...context,
        entityId
      });
    }
    async function loadEntity(syncConfig, objectType, objectId, record, handlers) {
      const providerCreators2 = getProviderCreators();
      const entityId = getEntityId(objectType, objectId);
      if (0 === providerCreators2.length) {
        log("loadEntity", "no providers, skipping", entityId);
        return;
      }
      if (entityStates.has(entityId)) {
        log("loadEntity", "already loaded", entityId);
        return;
      }
      log("loadEntity", "loading", entityId);
      handlers = {
        addUndoMeta: debugWrap(handlers.addUndoMeta),
        editRecord: debugWrap(handlers.editRecord),
        getEditedRecord: debugWrap(handlers.getEditedRecord),
        onStatusChange: debugWrap(handlers.onStatusChange),
        persistCRDTDoc: debugWrap(handlers.persistCRDTDoc),
        refetchRecord: debugWrap(handlers.refetchRecord),
        restoreUndoMeta: debugWrap(handlers.restoreUndoMeta)
      };
      const ydoc = createYjsDoc({ objectType });
      const recordMap = ydoc.getMap(CRDT_RECORD_MAP_KEY);
      const stateMap = ydoc.getMap(CRDT_STATE_MAP_KEY);
      const now = Date.now();
      const unload = () => {
        log("loadEntity", "unloading", entityId);
        providerResults.forEach((result) => result.destroy());
        handlers.onStatusChange(null);
        recordMap.unobserveDeep(onRecordUpdate);
        stateMap.unobserve(onStateMapUpdate);
        ydoc.destroy();
        entityStates.delete(entityId);
      };
      const awareness = syncConfig.createAwareness?.(ydoc, objectId);
      const onRecordUpdate = (_events, transaction) => {
        if (transaction.local && !(transaction.origin instanceof UndoManager)) {
          return;
        }
        void internal.updateEntityRecord(objectType, objectId);
      };
      const onStateMapUpdate = (event, transaction) => {
        if (transaction.local) {
          return;
        }
        event.keysChanged.forEach((key) => {
          switch (key) {
            case CRDT_STATE_MAP_SAVED_AT_KEY:
              const newValue = stateMap.get(CRDT_STATE_MAP_SAVED_AT_KEY);
              if ("number" === typeof newValue && newValue > now) {
                log("loadEntity", "refetching record", entityId);
                void handlers.refetchRecord().catch(() => {
                });
              }
              break;
          }
        });
      };
      if (!undoManager) {
        undoManager = createUndoManager();
      }
      const { addUndoMeta, restoreUndoMeta } = handlers;
      undoManager.addToScope(recordMap, {
        addUndoMeta,
        restoreUndoMeta
      });
      const entityState = {
        awareness,
        handlers,
        objectId,
        objectType,
        syncConfig,
        unload,
        ydoc
      };
      entityStates.set(entityId, entityState);
      log("loadEntity", "connecting", entityId);
      const providerResults = await Promise.all(
        providerCreators2.map(async (create7) => {
          const provider = await create7({
            objectType,
            objectId,
            ydoc,
            awareness
          });
          provider.on("status", handlers.onStatusChange);
          return provider;
        })
      );
      recordMap.observeDeep(onRecordUpdate);
      stateMap.observe(onStateMapUpdate);
      initializeYjsDoc(ydoc);
      internal.applyPersistedCrdtDoc(objectType, objectId, record);
    }
    async function loadCollection(syncConfig, objectType, handlers) {
      const providerCreators2 = getProviderCreators();
      const entityId = getEntityId(objectType, null);
      if (0 === providerCreators2.length) {
        log("loadCollection", "no providers, skipping", entityId);
        return;
      }
      if (collectionStates.has(objectType)) {
        log("loadCollection", "already loaded", entityId);
        return;
      }
      log("loadCollection", "loading", entityId);
      const ydoc = createYjsDoc({ collection: true, objectType });
      const stateMap = ydoc.getMap(CRDT_STATE_MAP_KEY);
      const now = Date.now();
      const unload = () => {
        log("loadCollection", "unloading", entityId);
        providerResults.forEach((result) => result.destroy());
        handlers.onStatusChange(null);
        stateMap.unobserve(onStateMapUpdate);
        ydoc.destroy();
        collectionStates.delete(objectType);
      };
      const onStateMapUpdate = (event, transaction) => {
        if (transaction.local) {
          return;
        }
        event.keysChanged.forEach((key) => {
          switch (key) {
            case CRDT_STATE_MAP_SAVED_AT_KEY:
              const newValue = stateMap.get(CRDT_STATE_MAP_SAVED_AT_KEY);
              if ("number" === typeof newValue && newValue > now) {
                void handlers.refetchRecords().catch(() => {
                });
              }
              break;
          }
        });
      };
      const awareness = syncConfig.createAwareness?.(ydoc);
      const collectionState = {
        awareness,
        handlers,
        syncConfig,
        unload,
        ydoc
      };
      collectionStates.set(objectType, collectionState);
      log("loadCollection", "connecting", entityId);
      const providerResults = await Promise.all(
        providerCreators2.map(async (create7) => {
          const provider = await create7({
            awareness,
            objectType,
            objectId: null,
            ydoc
          });
          provider.on("status", handlers.onStatusChange);
          return provider;
        })
      );
      stateMap.observe(onStateMapUpdate);
      initializeYjsDoc(ydoc);
    }
    function unloadEntity(objectType, objectId) {
      const entityId = getEntityId(objectType, objectId);
      log("unloadEntity", "unloading", entityId);
      entityStates.get(entityId)?.unload();
      updateCRDTDoc(objectType, null, {}, origin, { isSave: true });
    }
    function getAwareness(objectType, objectId) {
      const entityId = getEntityId(objectType, objectId);
      const entityState = entityStates.get(entityId);
      if (!entityState || !entityState.awareness) {
        return void 0;
      }
      return entityState.awareness;
    }
    function _applyPersistedCrdtDoc(objectType, objectId, record) {
      const entityId = getEntityId(objectType, objectId);
      const entityState = entityStates.get(entityId);
      if (!entityState) {
        log("applyPersistedCrdtDoc", "no entity state", entityId);
        return;
      }
      const {
        handlers,
        syncConfig: {
          applyChangesToCRDTDoc,
          getChangesFromCRDTDoc,
          getPersistedCRDTDoc
        },
        ydoc: targetDoc
      } = entityState;
      const serialized = getPersistedCRDTDoc?.(record);
      const tempDoc = serialized ? deserializeCrdtDoc(serialized) : null;
      if (!tempDoc) {
        log("applyPersistedCrdtDoc", "no persisted doc", entityId);
        targetDoc.transact(() => {
          applyChangesToCRDTDoc(targetDoc, record);
          handlers.persistCRDTDoc();
        }, LOCAL_SYNC_MANAGER_ORIGIN);
        return;
      }
      const update = encodeStateAsUpdateV2(tempDoc);
      applyUpdateV2(targetDoc, update);
      const invalidations = getChangesFromCRDTDoc(tempDoc, record);
      const invalidatedKeys = Object.keys(invalidations);
      tempDoc.destroy();
      if (0 === invalidatedKeys.length) {
        log("applyPersistedCrdtDoc", "valid persisted doc", entityId);
        return;
      }
      log("applyPersistedCrdtDoc", "invalidated keys", entityId, {
        invalidatedKeys
      });
      const changes = invalidatedKeys.reduce(
        (acc, key) => Object.assign(acc, {
          [key]: record[key]
        }),
        {}
      );
      targetDoc.transact(() => {
        applyChangesToCRDTDoc(targetDoc, changes);
        handlers.persistCRDTDoc();
      }, LOCAL_SYNC_MANAGER_ORIGIN);
    }
    function updateCRDTDoc(objectType, objectId, changes, origin2, options = {}) {
      const { isSave = false, isNewUndoLevel = false } = options;
      const entityId = getEntityId(objectType, objectId);
      const entityState = entityStates.get(entityId);
      const collectionState = collectionStates.get(objectType);
      if (entityState) {
        const { syncConfig, ydoc } = entityState;
        if (isNewUndoLevel && undoManager) {
          undoManager.stopCapturing?.();
        }
        ydoc.transact(() => {
          log("updateCRDTDoc", "applying changes", entityId, {
            changedKeys: Object.keys(changes)
          });
          syncConfig.applyChangesToCRDTDoc(ydoc, changes);
          if (isSave) {
            markEntityAsSaved(ydoc);
          }
        }, origin2);
      }
      if (collectionState && isSave) {
        collectionState.ydoc.transact(() => {
          markEntityAsSaved(collectionState.ydoc);
        }, origin2);
      }
    }
    async function _updateEntityRecord(objectType, objectId) {
      const entityId = getEntityId(objectType, objectId);
      const entityState = entityStates.get(entityId);
      if (!entityState) {
        log("updateEntityRecord", "no entity state", entityId);
        return;
      }
      const { handlers, syncConfig, ydoc } = entityState;
      const changes = syncConfig.getChangesFromCRDTDoc(
        ydoc,
        await handlers.getEditedRecord()
      );
      const changedKeys = Object.keys(changes);
      if (0 === changedKeys.length) {
        return;
      }
      log("updateEntityRecord", "changes", entityId, {
        changedKeys
      });
      handlers.editRecord(changes);
    }
    async function createPersistedCRDTDoc(objectType, objectId) {
      const entityId = getEntityId(objectType, objectId);
      const entityState = entityStates.get(entityId);
      if (!entityState?.ydoc) {
        return null;
      }
      await new Promise((resolve) => setTimeout(resolve, 0));
      return serializeCrdtDoc(entityState.ydoc);
    }
    const internal = {
      applyPersistedCrdtDoc: debugWrap(_applyPersistedCrdtDoc),
      updateEntityRecord: debugWrap(_updateEntityRecord)
    };
    return {
      createPersistedCRDTDoc: debugWrap(createPersistedCRDTDoc),
      getAwareness,
      load: debugWrap(loadEntity),
      loadCollection: debugWrap(loadCollection),
      // Use getter to ensure we always return the current value of `undoManager`.
      get undoManager() {
        return undoManager;
      },
      unload: debugWrap(unloadEntity),
      update: debugWrap(yieldToEventLoop(updateCRDTDoc))
    };
  }

// packages/sync/node_modules/diff/libesm/diff/base.js
  var Diff = class {
    diff(oldStr, newStr, options = {}) {
      let callback;
      if (typeof options === "function") {
        callback = options;
        options = {};
      } else if ("callback" in options) {
        callback = options.callback;
      }
      const oldString = this.castInput(oldStr, options);
      const newString = this.castInput(newStr, options);
      const oldTokens = this.removeEmpty(this.tokenize(oldString, options));
      const newTokens = this.removeEmpty(this.tokenize(newString, options));
      return this.diffWithOptionsObj(oldTokens, newTokens, options, callback);
    }
    diffWithOptionsObj(oldTokens, newTokens, options, callback) {
      var _a;
      const done = (value) => {
        value = this.postProcess(value, options);
        if (callback) {
          setTimeout(function() {
            callback(value);
          }, 0);
          return void 0;
        } else {
          return value;
        }
      };
      const newLen = newTokens.length, oldLen = oldTokens.length;
      let editLength = 1;
      let maxEditLength = newLen + oldLen;
      if (options.maxEditLength != null) {
        maxEditLength = Math.min(maxEditLength, options.maxEditLength);
      }
      const maxExecutionTime = (_a = options.timeout) !== null && _a !== void 0 ? _a : Infinity;
      const abortAfterTimestamp = Date.now() + maxExecutionTime;
      const bestPath = [{ oldPos: -1, lastComponent: void 0 }];
      let newPos = this.extractCommon(bestPath[0], newTokens, oldTokens, 0, options);
      if (bestPath[0].oldPos + 1 >= oldLen && newPos + 1 >= newLen) {
        return done(this.buildValues(bestPath[0].lastComponent, newTokens, oldTokens));
      }
      let minDiagonalToConsider = -Infinity, maxDiagonalToConsider = Infinity;
      const execEditLength = () => {
        for (let diagonalPath = Math.max(minDiagonalToConsider, -editLength); diagonalPath <= Math.min(maxDiagonalToConsider, editLength); diagonalPath += 2) {
          let basePath;
          const removePath = bestPath[diagonalPath - 1], addPath = bestPath[diagonalPath + 1];
          if (removePath) {
            bestPath[diagonalPath - 1] = void 0;
          }
          let canAdd = false;
          if (addPath) {
            const addPathNewPos = addPath.oldPos - diagonalPath;
            canAdd = addPath && 0 <= addPathNewPos && addPathNewPos < newLen;
          }
          const canRemove = removePath && removePath.oldPos + 1 < oldLen;
          if (!canAdd && !canRemove) {
            bestPath[diagonalPath] = void 0;
            continue;
          }
          if (!canRemove || canAdd && removePath.oldPos < addPath.oldPos) {
            basePath = this.addToPath(addPath, true, false, 0, options);
          } else {
            basePath = this.addToPath(removePath, false, true, 1, options);
          }
          newPos = this.extractCommon(basePath, newTokens, oldTokens, diagonalPath, options);
          if (basePath.oldPos + 1 >= oldLen && newPos + 1 >= newLen) {
            return done(this.buildValues(basePath.lastComponent, newTokens, oldTokens)) || true;
          } else {
            bestPath[diagonalPath] = basePath;
            if (basePath.oldPos + 1 >= oldLen) {
              maxDiagonalToConsider = Math.min(maxDiagonalToConsider, diagonalPath - 1);
            }
            if (newPos + 1 >= newLen) {
              minDiagonalToConsider = Math.max(minDiagonalToConsider, diagonalPath + 1);
            }
          }
        }
        editLength++;
      };
      if (callback) {
        (function exec() {
          setTimeout(function() {
            if (editLength > maxEditLength || Date.now() > abortAfterTimestamp) {
              return callback(void 0);
            }
            if (!execEditLength()) {
              exec();
            }
          }, 0);
        })();
      } else {
        while (editLength <= maxEditLength && Date.now() <= abortAfterTimestamp) {
          const ret = execEditLength();
          if (ret) {
            return ret;
          }
        }
      }
    }
    addToPath(path, added, removed, oldPosInc, options) {
      const last2 = path.lastComponent;
      if (last2 && !options.oneChangePerToken && last2.added === added && last2.removed === removed) {
        return {
          oldPos: path.oldPos + oldPosInc,
          lastComponent: { count: last2.count + 1, added, removed, previousComponent: last2.previousComponent }
        };
      } else {
        return {
          oldPos: path.oldPos + oldPosInc,
          lastComponent: { count: 1, added, removed, previousComponent: last2 }
        };
      }
    }
    extractCommon(basePath, newTokens, oldTokens, diagonalPath, options) {
      const newLen = newTokens.length, oldLen = oldTokens.length;
      let oldPos = basePath.oldPos, newPos = oldPos - diagonalPath, commonCount = 0;
      while (newPos + 1 < newLen && oldPos + 1 < oldLen && this.equals(oldTokens[oldPos + 1], newTokens[newPos + 1], options)) {
        newPos++;
        oldPos++;
        commonCount++;
        if (options.oneChangePerToken) {
          basePath.lastComponent = { count: 1, previousComponent: basePath.lastComponent, added: false, removed: false };
        }
      }
      if (commonCount && !options.oneChangePerToken) {
        basePath.lastComponent = { count: commonCount, previousComponent: basePath.lastComponent, added: false, removed: false };
      }
      basePath.oldPos = oldPos;
      return newPos;
    }
    equals(left, right, options) {
      if (options.comparator) {
        return options.comparator(left, right);
      } else {
        return left === right || !!options.ignoreCase && left.toLowerCase() === right.toLowerCase();
      }
    }
    removeEmpty(array) {
      const ret = [];
      for (let i = 0; i < array.length; i++) {
        if (array[i]) {
          ret.push(array[i]);
        }
      }
      return ret;
    }
    // eslint-disable-next-line @typescript-eslint/no-unused-vars
    castInput(value, options) {
      return value;
    }
    // eslint-disable-next-line @typescript-eslint/no-unused-vars
    tokenize(value, options) {
      return Array.from(value);
    }
    join(chars) {
      return chars.join("");
    }
    postProcess(changeObjects, options) {
      return changeObjects;
    }
    get useLongestToken() {
      return false;
    }
    buildValues(lastComponent, newTokens, oldTokens) {
      const components = [];
      let nextComponent;
      while (lastComponent) {
        components.push(lastComponent);
        nextComponent = lastComponent.previousComponent;
        delete lastComponent.previousComponent;
        lastComponent = nextComponent;
      }
      components.reverse();
      const componentLen = components.length;
      let componentPos = 0, newPos = 0, oldPos = 0;
      for (; componentPos < componentLen; componentPos++) {
        const component = components[componentPos];
        if (!component.removed) {
          if (!component.added && this.useLongestToken) {
            let value = newTokens.slice(newPos, newPos + component.count);
            value = value.map(function(value2, i) {
              const oldValue = oldTokens[oldPos + i];
              return oldValue.length > value2.length ? oldValue : value2;
            });
            component.value = this.join(value);
          } else {
            component.value = this.join(newTokens.slice(newPos, newPos + component.count));
          }
          newPos += component.count;
          if (!component.added) {
            oldPos += component.count;
          }
        } else {
          component.value = this.join(oldTokens.slice(oldPos, oldPos + component.count));
          oldPos += component.count;
        }
      }
      return components;
    }
  };

// packages/sync/node_modules/diff/libesm/diff/character.js
  var CharacterDiff = class extends Diff {
  };
  var characterDiff = new CharacterDiff();
  function diffChars(oldStr, newStr, options) {
    return characterDiff.diff(oldStr, newStr, options);
  }

// packages/sync/node_modules/diff/libesm/diff/line.js
  var LineDiff = class extends Diff {
    constructor() {
      super(...arguments);
      this.tokenize = tokenize;
    }
    equals(left, right, options) {
      if (options.ignoreWhitespace) {
        if (!options.newlineIsToken || !left.includes("\n")) {
          left = left.trim();
        }
        if (!options.newlineIsToken || !right.includes("\n")) {
          right = right.trim();
        }
      } else if (options.ignoreNewlineAtEof && !options.newlineIsToken) {
        if (left.endsWith("\n")) {
          left = left.slice(0, -1);
        }
        if (right.endsWith("\n")) {
          right = right.slice(0, -1);
        }
      }
      return super.equals(left, right, options);
    }
  };
  var lineDiff = new LineDiff();
  function diffLines(oldStr, newStr, options) {
    return lineDiff.diff(oldStr, newStr, options);
  }
  function tokenize(value, options) {
    if (options.stripTrailingCr) {
      value = value.replace(/\r\n/g, "\n");
    }
    const retLines = [], linesAndNewlines = value.split(/(\n|\r\n)/);
    if (!linesAndNewlines[linesAndNewlines.length - 1]) {
      linesAndNewlines.pop();
    }
    for (let i = 0; i < linesAndNewlines.length; i++) {
      const line = linesAndNewlines[i];
      if (i % 2 && !options.newlineIsToken) {
        retLines[retLines.length - 1] += line;
      } else {
        retLines.push(line);
      }
    }
    return retLines;
  }

// packages/sync/build-module/quill-delta/Delta.mjs
  var import_es62 = __toESM(require_es6(), 1);

// packages/sync/build-module/quill-delta/AttributeMap.mjs
  var import_es6 = __toESM(require_es6(), 1);
  function cloneDeep(value) {
    return JSON.parse(JSON.stringify(value));
  }
  var AttributeMap;
  ((AttributeMap2) => {
    function compose(a = {}, b = {}, keepNull = false) {
      if (typeof a !== "object") {
        a = {};
      }
      if (typeof b !== "object") {
        b = {};
      }
      let attributes = cloneDeep(b);
      if (!keepNull) {
        attributes = Object.keys(attributes).reduce(
          (copy2, key) => {
            if (attributes[key] !== null || attributes[key] !== void 0) {
              copy2[key] = attributes[key];
            }
            return copy2;
          },
          {}
        );
      }
      for (const key in a) {
        if (a[key] !== void 0 && b[key] === void 0) {
          attributes[key] = a[key];
        }
      }
      return Object.keys(attributes).length > 0 ? attributes : void 0;
    }
    AttributeMap2.compose = compose;
    function diff(a = {}, b = {}) {
      if (typeof a !== "object") {
        a = {};
      }
      if (typeof b !== "object") {
        b = {};
      }
      const attributes = Object.keys(a).concat(Object.keys(b)).reduce((attrs, key) => {
        if (!(0, import_es6.default)(a[key], b[key])) {
          attrs[key] = b[key] === void 0 ? null : b[key];
        }
        return attrs;
      }, {});
      return Object.keys(attributes).length > 0 ? attributes : void 0;
    }
    AttributeMap2.diff = diff;
    function invert(attr = {}, base = {}) {
      attr = attr || {};
      const baseInverted = Object.keys(base).reduce(
        (memo, key) => {
          if (base[key] !== attr[key] && attr[key] !== void 0) {
            memo[key] = base[key];
          }
          return memo;
        },
        {}
      );
      return Object.keys(attr).reduce((memo, key) => {
        if (attr[key] !== base[key] && base[key] === void 0) {
          memo[key] = null;
        }
        return memo;
      }, baseInverted);
    }
    AttributeMap2.invert = invert;
    function transform(a, b, priority = false) {
      if (typeof a !== "object") {
        return b;
      }
      if (typeof b !== "object") {
        return void 0;
      }
      if (!priority) {
        return b;
      }
      const attributes = Object.keys(b).reduce(
        (attrs, key) => {
          if (a[key] === void 0) {
            attrs[key] = b[key];
          }
          return attrs;
        },
        {}
      );
      return Object.keys(attributes).length > 0 ? attributes : void 0;
    }
    AttributeMap2.transform = transform;
  })(AttributeMap || (AttributeMap = {}));
  var AttributeMap_default = AttributeMap;

// packages/sync/build-module/quill-delta/Op.mjs
  var Op;
  ((Op2) => {
    function length3(op) {
      if (typeof op.delete === "number") {
        return op.delete;
      } else if (typeof op.retain === "number") {
        return op.retain;
      } else if (typeof op.retain === "object" && op.retain !== null) {
        return 1;
      }
      return typeof op.insert === "string" ? op.insert.length : 1;
    }
    Op2.length = length3;
  })(Op || (Op = {}));
  var Op_default = Op;

// packages/sync/build-module/quill-delta/OpIterator.mjs
  var Iterator = class {
    ops;
    index;
    offset;
    constructor(ops) {
      this.ops = ops;
      this.index = 0;
      this.offset = 0;
    }
    hasNext() {
      return this.peekLength() < Infinity;
    }
    next(length3) {
      if (!length3) {
        length3 = Infinity;
      }
      const nextOp = this.ops[this.index];
      if (nextOp) {
        const offset = this.offset;
        const opLength = Op_default.length(nextOp);
        if (length3 >= opLength - offset) {
          length3 = opLength - offset;
          this.index += 1;
          this.offset = 0;
        } else {
          this.offset += length3;
        }
        if (typeof nextOp.delete === "number") {
          return { delete: length3 };
        }
        const retOp = {};
        if (nextOp.attributes) {
          retOp.attributes = nextOp.attributes;
        }
        if (typeof nextOp.retain === "number") {
          retOp.retain = length3;
        } else if (typeof nextOp.retain === "object" && nextOp.retain !== null) {
          retOp.retain = nextOp.retain;
        } else if (typeof nextOp.insert === "string") {
          retOp.insert = nextOp.insert.substr(offset, length3);
        } else {
          retOp.insert = nextOp.insert;
        }
        return retOp;
      }
      return { retain: Infinity };
    }
    peek() {
      return this.ops[this.index];
    }
    peekLength() {
      if (this.ops[this.index]) {
        return Op_default.length(this.ops[this.index]) - this.offset;
      }
      return Infinity;
    }
    peekType() {
      const op = this.ops[this.index];
      if (op) {
        if (typeof op.delete === "number") {
          return "delete";
        } else if (typeof op.retain === "number" || typeof op.retain === "object" && op.retain !== null) {
          return "retain";
        }
        return "insert";
      }
      return "retain";
    }
    rest() {
      if (!this.hasNext()) {
        return [];
      } else if (this.offset === 0) {
        return this.ops.slice(this.index);
      }
      const offset = this.offset;
      const index = this.index;
      const next = this.next();
      const rest = this.ops.slice(this.index);
      this.offset = offset;
      this.index = index;
      return [next].concat(rest);
    }
  };

// packages/sync/build-module/quill-delta/Delta.mjs
  function cloneDeep2(value) {
    return JSON.parse(JSON.stringify(value));
  }
  var NULL_CHARACTER = String.fromCharCode(0);
  var STRING_TOO_LARGE_THRESHOLD = 1e4;
  function normalizeChangeCounts(changes) {
    return changes.map((change) => ({
      ...change,
      count: change.value.length
    }));
  }
  var getEmbedTypeAndData = (a, b) => {
    if (typeof a !== "object" || a === null) {
      throw new Error(`cannot retain a ${typeof a}`);
    }
    if (typeof b !== "object" || b === null) {
      throw new Error(`cannot retain a ${typeof b}`);
    }
    const embedType = Object.keys(a)[0];
    if (!embedType || embedType !== Object.keys(b)[0]) {
      throw new Error(
        `embed types not matched: ${embedType} != ${Object.keys(b)[0]}`
      );
    }
    return [embedType, a[embedType], b[embedType]];
  };
  var Delta = class _Delta {
    static Op = Op_default;
    static OpIterator = Iterator;
    static AttributeMap = AttributeMap_default;
    static handlers = {};
    static registerEmbed(embedType, handler) {
      this.handlers[embedType] = handler;
    }
    static unregisterEmbed(embedType) {
      delete this.handlers[embedType];
    }
    static getHandler(embedType) {
      const handler = this.handlers[embedType];
      if (!handler) {
        throw new Error(`no handlers for embed type "${embedType}"`);
      }
      return handler;
    }
    ops;
    constructor(ops) {
      if (Array.isArray(ops)) {
        this.ops = ops;
      } else if (ops !== null && ops !== void 0 && Array.isArray(ops.ops)) {
        this.ops = ops.ops;
      } else {
        this.ops = [];
      }
    }
    insert(arg, attributes) {
      const newOp = {};
      if (typeof arg === "string" && arg.length === 0) {
        return this;
      }
      newOp.insert = arg;
      if (attributes !== null && attributes !== void 0 && typeof attributes === "object" && Object.keys(attributes).length > 0) {
        newOp.attributes = attributes;
      }
      return this.push(newOp);
    }
    delete(length3) {
      if (length3 <= 0) {
        return this;
      }
      return this.push({ delete: length3 });
    }
    retain(length3, attributes) {
      if (typeof length3 === "number" && length3 <= 0) {
        return this;
      }
      const newOp = { retain: length3 };
      if (attributes !== null && attributes !== void 0 && typeof attributes === "object" && Object.keys(attributes).length > 0) {
        newOp.attributes = attributes;
      }
      return this.push(newOp);
    }
    push(newOp) {
      let index = this.ops.length;
      let lastOp = this.ops[index - 1];
      newOp = cloneDeep2(newOp);
      if (typeof lastOp === "object") {
        if (typeof newOp.delete === "number" && typeof lastOp.delete === "number") {
          this.ops[index - 1] = {
            delete: lastOp.delete + newOp.delete
          };
          return this;
        }
        if (typeof lastOp.delete === "number" && newOp.insert !== null && newOp.insert !== void 0) {
          index -= 1;
          lastOp = this.ops[index - 1];
          if (typeof lastOp !== "object") {
            this.ops.unshift(newOp);
            return this;
          }
        }
        if ((0, import_es62.default)(newOp.attributes, lastOp.attributes)) {
          if (typeof newOp.insert === "string" && typeof lastOp.insert === "string") {
            this.ops[index - 1] = {
              insert: lastOp.insert + newOp.insert
            };
            if (typeof newOp.attributes === "object") {
              this.ops[index - 1].attributes = newOp.attributes;
            }
            return this;
          } else if (typeof newOp.retain === "number" && typeof lastOp.retain === "number") {
            this.ops[index - 1] = {
              retain: lastOp.retain + newOp.retain
            };
            if (typeof newOp.attributes === "object") {
              this.ops[index - 1].attributes = newOp.attributes;
            }
            return this;
          }
        }
      }
      if (index === this.ops.length) {
        this.ops.push(newOp);
      } else {
        this.ops.splice(index, 0, newOp);
      }
      return this;
    }
    chop() {
      const lastOp = this.ops[this.ops.length - 1];
      if (lastOp && typeof lastOp.retain === "number" && !lastOp.attributes) {
        this.ops.pop();
      }
      return this;
    }
    filter(predicate) {
      return this.ops.filter(predicate);
    }
    forEach(predicate) {
      this.ops.forEach(predicate);
    }
    map(predicate) {
      return this.ops.map(predicate);
    }
    partition(predicate) {
      const passed = [];
      const failed = [];
      this.forEach((op) => {
        const target = predicate(op) ? passed : failed;
        target.push(op);
      });
      return [passed, failed];
    }
    reduce(predicate, initialValue) {
      return this.ops.reduce(predicate, initialValue);
    }
    changeLength() {
      return this.reduce((length3, elem) => {
        if (elem.insert) {
          return length3 + Op_default.length(elem);
        } else if (elem.delete) {
          return length3 - elem.delete;
        }
        return length3;
      }, 0);
    }
    length() {
      return this.reduce((length3, elem) => {
        return length3 + Op_default.length(elem);
      }, 0);
    }
    slice(start = 0, end = Infinity) {
      const ops = [];
      const iter = new Iterator(this.ops);
      let index = 0;
      while (index < end && iter.hasNext()) {
        let nextOp;
        if (index < start) {
          nextOp = iter.next(start - index);
        } else {
          nextOp = iter.next(end - index);
          ops.push(nextOp);
        }
        index += Op_default.length(nextOp);
      }
      return new _Delta(ops);
    }
    compose(other) {
      const thisIter = new Iterator(this.ops);
      const otherIter = new Iterator(other.ops);
      const ops = [];
      const firstOther = otherIter.peek();
      if (firstOther !== null && firstOther !== void 0 && typeof firstOther.retain === "number" && (firstOther.attributes === null || firstOther.attributes === void 0)) {
        let firstLeft = firstOther.retain;
        while (thisIter.peekType() === "insert" && thisIter.peekLength() <= firstLeft) {
          firstLeft -= thisIter.peekLength();
          ops.push(thisIter.next());
        }
        if (firstOther.retain - firstLeft > 0) {
          otherIter.next(firstOther.retain - firstLeft);
        }
      }
      const delta = new _Delta(ops);
      while (thisIter.hasNext() || otherIter.hasNext()) {
        if (otherIter.peekType() === "insert") {
          delta.push(otherIter.next());
        } else if (thisIter.peekType() === "delete") {
          delta.push(thisIter.next());
        } else {
          const length3 = Math.min(
            thisIter.peekLength(),
            otherIter.peekLength()
          );
          const thisOp = thisIter.next(length3);
          const otherOp = otherIter.next(length3);
          if (otherOp.retain) {
            const newOp = {};
            if (typeof thisOp.retain === "number") {
              newOp.retain = typeof otherOp.retain === "number" ? length3 : otherOp.retain;
            } else if (typeof otherOp.retain === "number") {
              if (thisOp.retain === null || thisOp.retain === void 0) {
                newOp.insert = thisOp.insert;
              } else {
                newOp.retain = thisOp.retain;
              }
            } else {
              const action = thisOp.retain === null || thisOp.retain === void 0 ? "insert" : "retain";
              const [embedType, thisData, otherData] = getEmbedTypeAndData(
                thisOp[action],
                otherOp.retain
              );
              const handler = _Delta.getHandler(embedType);
              newOp[action] = {
                [embedType]: handler.compose(
                  thisData,
                  otherData,
                  action === "retain"
                )
              };
            }
            const attributes = AttributeMap_default.compose(
              thisOp.attributes,
              otherOp.attributes,
              typeof thisOp.retain === "number"
            );
            if (attributes) {
              newOp.attributes = attributes;
            }
            delta.push(newOp);
            if (!otherIter.hasNext() && (0, import_es62.default)(delta.ops[delta.ops.length - 1], newOp)) {
              const rest = new _Delta(thisIter.rest());
              return delta.concat(rest).chop();
            }
          } else if (typeof otherOp.delete === "number" && (typeof thisOp.retain === "number" || typeof thisOp.retain === "object" && thisOp.retain !== null)) {
            delta.push(otherOp);
          }
        }
      }
      return delta.chop();
    }
    concat(other) {
      const delta = new _Delta(this.ops.slice());
      if (other.ops.length > 0) {
        delta.push(other.ops[0]);
        delta.ops = delta.ops.concat(other.ops.slice(1));
      }
      return delta;
    }
    diff(other) {
      if (this.ops === other.ops) {
        return new _Delta();
      }
      const strings = this.deltasToStrings(other);
      const diffResult = normalizeChangeCounts(
        diffChars(strings[0], strings[1])
      );
      const thisIter = new Iterator(this.ops);
      const otherIter = new Iterator(other.ops);
      const retDelta = this.convertChangesToDelta(
        diffResult,
        thisIter,
        otherIter
      );
      return retDelta.chop();
    }
    eachLine(predicate, newline = "\n") {
      const iter = new Iterator(this.ops);
      let line = new _Delta();
      let i = 0;
      while (iter.hasNext()) {
        if (iter.peekType() !== "insert") {
          return;
        }
        const thisOp = iter.peek();
        const start = Op_default.length(thisOp) - iter.peekLength();
        const index = typeof thisOp.insert === "string" ? thisOp.insert.indexOf(newline, start) - start : -1;
        if (index < 0) {
          line.push(iter.next());
        } else if (index > 0) {
          line.push(iter.next(index));
        } else {
          if (predicate(line, iter.next(1).attributes || {}, i) === false) {
            return;
          }
          i += 1;
          line = new _Delta();
        }
      }
      if (line.length() > 0) {
        predicate(line, {}, i);
      }
    }
    invert(base) {
      const inverted = new _Delta();
      this.reduce((baseIndex, op) => {
        if (op.insert) {
          inverted.delete(Op_default.length(op));
        } else if (typeof op.retain === "number" && (op.attributes === null || op.attributes === void 0)) {
          inverted.retain(op.retain);
          return baseIndex + op.retain;
        } else if (op.delete || typeof op.retain === "number") {
          const length3 = op.delete || op.retain;
          const slice = base.slice(baseIndex, baseIndex + length3);
          slice.forEach((baseOp) => {
            if (op.delete) {
              inverted.push(baseOp);
            } else if (op.retain && op.attributes) {
              inverted.retain(
                Op_default.length(baseOp),
                AttributeMap_default.invert(
                  op.attributes,
                  baseOp.attributes
                )
              );
            }
          });
          return baseIndex + length3;
        } else if (typeof op.retain === "object" && op.retain !== null) {
          const slice = base.slice(baseIndex, baseIndex + 1);
          const baseOp = new Iterator(slice.ops).next();
          const [embedType, opData, baseOpData] = getEmbedTypeAndData(
            op.retain,
            baseOp.insert
          );
          const handler = _Delta.getHandler(embedType);
          inverted.retain(
            { [embedType]: handler.invert(opData, baseOpData) },
            AttributeMap_default.invert(op.attributes, baseOp.attributes)
          );
          return baseIndex + 1;
        }
        return baseIndex;
      }, 0);
      return inverted.chop();
    }
    transform(arg, priority = false) {
      priority = !!priority;
      if (typeof arg === "number") {
        return this.transformPosition(arg, priority);
      }
      const other = arg;
      const thisIter = new Iterator(this.ops);
      const otherIter = new Iterator(other.ops);
      const delta = new _Delta();
      while (thisIter.hasNext() || otherIter.hasNext()) {
        if (thisIter.peekType() === "insert" && (priority || otherIter.peekType() !== "insert")) {
          delta.retain(Op_default.length(thisIter.next()));
        } else if (otherIter.peekType() === "insert") {
          delta.push(otherIter.next());
        } else {
          const length3 = Math.min(
            thisIter.peekLength(),
            otherIter.peekLength()
          );
          const thisOp = thisIter.next(length3);
          const otherOp = otherIter.next(length3);
          if (thisOp.delete) {
            continue;
          } else if (otherOp.delete) {
            delta.push(otherOp);
          } else {
            const thisData = thisOp.retain;
            const otherData = otherOp.retain;
            let transformedData = typeof otherData === "object" && otherData !== null ? otherData : length3;
            if (typeof thisData === "object" && thisData !== null && typeof otherData === "object" && otherData !== null) {
              const embedType = Object.keys(thisData)[0];
              if (embedType === Object.keys(otherData)[0]) {
                const handler = _Delta.getHandler(embedType);
                if (handler) {
                  transformedData = {
                    [embedType]: handler.transform(
                      thisData[embedType],
                      otherData[embedType],
                      priority
                    )
                  };
                }
              }
            }
            delta.retain(
              transformedData,
              AttributeMap_default.transform(
                thisOp.attributes,
                otherOp.attributes,
                priority
              )
            );
          }
        }
      }
      return delta.chop();
    }
    transformPosition(index, priority = false) {
      priority = !!priority;
      const thisIter = new Iterator(this.ops);
      let offset = 0;
      while (thisIter.hasNext() && offset <= index) {
        const length3 = thisIter.peekLength();
        const nextType = thisIter.peekType();
        thisIter.next();
        if (nextType === "delete") {
          index -= Math.min(length3, index - offset);
          continue;
        } else if (nextType === "insert" && (offset < index || !priority)) {
          index += length3;
        }
        offset += length3;
      }
      return index;
    }
    /**
     * Given a Delta and a cursor position, do a diff and attempt to adjust
     * the diff to place insertions or deletions at the cursor position.
     *
     * @param other             - The other Delta to diff against.
     * @param cursorAfterChange - The cursor position index after the change.
     * @return A Delta that attempts to place insertions or deletions at the cursor position.
     */
    diffWithCursor(other, cursorAfterChange) {
      if (this.ops === other.ops) {
        return new _Delta();
      }
      const strings = this.deltasToStrings(other);
      const maxStringLength = Math.max(
        ...strings.map((str) => str.length)
      );
      if (maxStringLength > STRING_TOO_LARGE_THRESHOLD) {
        const diffResult = normalizeChangeCounts(
          diffLines(strings[0], strings[1])
        );
        const thisIterLarge = new Iterator(this.ops);
        const otherIterLarge = new Iterator(other.ops);
        return this.convertChangesToDelta(
          diffResult,
          thisIterLarge,
          otherIterLarge
        ).chop();
      } else if (cursorAfterChange === null) {
        return this.diff(other);
      }
      let diffs = normalizeChangeCounts(
        diffChars(strings[0], strings[1])
      );
      let lastDiffPosition = 0;
      const adjustedDiffs = [];
      for (let i = 0; i < diffs.length; i++) {
        const diff = diffs[i];
        const segmentStart = lastDiffPosition;
        const segmentEnd = lastDiffPosition + (diff.count ?? 0);
        const isCursorInSegment = cursorAfterChange > segmentStart && cursorAfterChange <= segmentEnd;
        const isUnchangedSegment = !diff.added && !diff.removed;
        const isRemovalSegment = diff.removed && !diff.added;
        const nextDiff = diffs[i + 1];
        const isNextDiffAnInsert = nextDiff && nextDiff.added && !nextDiff.removed;
        if (isUnchangedSegment && isCursorInSegment && isNextDiffAnInsert) {
          const movedSegments = this.tryMoveInsertionToCursor(
            diff,
            nextDiff,
            cursorAfterChange,
            segmentStart
          );
          if (movedSegments) {
            adjustedDiffs.push(...movedSegments);
            i++;
            lastDiffPosition = segmentEnd;
            continue;
          }
        }
        if (isRemovalSegment) {
          const movedSegments = this.tryMoveDeletionToCursor(
            diff,
            adjustedDiffs,
            cursorAfterChange,
            lastDiffPosition
          );
          if (movedSegments) {
            adjustedDiffs.pop();
            adjustedDiffs.push(...movedSegments);
            lastDiffPosition += diff.count ?? 0;
            continue;
          }
        }
        adjustedDiffs.push(diff);
        if (!diff.added) {
          lastDiffPosition += diff.count ?? 0;
        }
      }
      diffs = adjustedDiffs;
      const thisIter = new Iterator(this.ops);
      const otherIter = new Iterator(other.ops);
      const retDelta = this.convertChangesToDelta(
        diffs,
        thisIter,
        otherIter
      );
      return retDelta.chop();
    }
    /**
     * Try to move an insertion operation from after an unchanged segment to the cursor position within it.
     * This is a "look-ahead" strategy.
     *
     * @param diff              - The current unchanged diff segment.
     * @param nextDiff          - The next diff segment (expected to be an insertion).
     * @param cursorAfterChange - The cursor position after the change.
     * @param segmentStart      - The start position of the current segment.
     * @return An array of adjusted diff segments if the insertion was successfully moved, null otherwise.
     */
    tryMoveInsertionToCursor(diff, nextDiff, cursorAfterChange, segmentStart) {
      const nextDiffInsert = nextDiff.value;
      const insertLength = nextDiffInsert.length;
      const insertOffset = cursorAfterChange - segmentStart - insertLength;
      const textAtCursor = diff.value.substring(
        insertOffset,
        insertOffset + nextDiffInsert.length
      );
      const isInsertMoveable = textAtCursor === nextDiffInsert;
      if (!isInsertMoveable) {
        return null;
      }
      const beforeCursor = diff.value.substring(0, insertOffset);
      const afterCursor = diff.value.substring(insertOffset);
      const result = [];
      if (beforeCursor.length > 0) {
        result.push({
          value: beforeCursor,
          count: beforeCursor.length,
          added: false,
          removed: false
        });
      }
      result.push(nextDiff);
      if (afterCursor.length > 0) {
        result.push({
          value: afterCursor,
          count: afterCursor.length,
          added: false,
          removed: false
        });
      }
      return result;
    }
    /**
     * Try to move a deletion operation to the cursor position by looking back at the previous unchanged segment.
     * This is a "look-back" strategy.
     *
     * @param diff              - The current deletion diff segment.
     * @param adjustedDiffs     - The array of previously processed diff segments.
     * @param cursorAfterChange - The cursor position after the change.
     * @param lastDiffPosition  - The position in the document up to (but not including) the current diff.
     * @return An array of adjusted diff segments if the deletion was successfully moved, null otherwise.
     */
    tryMoveDeletionToCursor(diff, adjustedDiffs, cursorAfterChange, lastDiffPosition) {
      const prevDiff = adjustedDiffs[adjustedDiffs.length - 1];
      if (!prevDiff || prevDiff.added || prevDiff.removed) {
        return null;
      }
      const prevSegmentStart = lastDiffPosition - (prevDiff.count ?? 0);
      const prevSegmentEnd = lastDiffPosition;
      if (cursorAfterChange < prevSegmentStart || cursorAfterChange >= prevSegmentEnd) {
        return null;
      }
      const deletedChars = diff.value;
      const deleteOffset = cursorAfterChange - prevSegmentStart;
      const textAtCursor = prevDiff.value.substring(
        deleteOffset,
        deleteOffset + deletedChars.length
      );
      const canBePlacedHere = textAtCursor === deletedChars;
      if (!canBePlacedHere) {
        return null;
      }
      const beforeCursor = prevDiff.value.substring(0, deleteOffset);
      const atAndAfterCursor = prevDiff.value.substring(deleteOffset);
      const deletionLength = diff.count ?? 0;
      const afterDeletion = atAndAfterCursor.substring(deletionLength);
      const result = [];
      if (beforeCursor.length > 0) {
        result.push({
          value: beforeCursor,
          count: beforeCursor.length,
          added: false,
          removed: false
        });
      }
      result.push(diff);
      if (afterDeletion.length > 0) {
        result.push({
          value: afterDeletion,
          count: afterDeletion.length,
          added: false,
          removed: false
        });
      }
      return result;
    }
    /**
     * Convert two Deltas to string representations for diffing.
     *
     * @param other - The other Delta to convert.
     * @return A tuple of [thisString, otherString].
     */
    deltasToStrings(other) {
      return [this, other].map((delta) => {
        return delta.map((op) => {
          if (op.insert !== null || op.insert !== void 0) {
            return typeof op.insert === "string" ? op.insert : NULL_CHARACTER;
          }
          const prep = delta === other ? "on" : "with";
          throw new Error(
            "diff() called " + prep + " non-document"
          );
        }).join("");
      });
    }
    /**
     * Process diff changes and convert them to Delta operations.
     *
     * @param changes   - The array of changes from the diff algorithm.
     * @param thisIter  - Iterator for this Delta's operations.
     * @param otherIter - Iterator for the other Delta's operations.
     * @return A Delta containing the processed diff operations.
     */
    convertChangesToDelta(changes, thisIter, otherIter) {
      const retDelta = new _Delta();
      changes.forEach((component) => {
        let length3 = component.count ?? 0;
        while (length3 > 0) {
          let opLength = 0;
          if (component.added) {
            opLength = Math.min(otherIter.peekLength(), length3);
            retDelta.push(otherIter.next(opLength));
          } else if (component.removed) {
            opLength = Math.min(length3, thisIter.peekLength());
            thisIter.next(opLength);
            retDelta.delete(opLength);
          } else {
            opLength = Math.min(
              thisIter.peekLength(),
              otherIter.peekLength(),
              length3
            );
            const thisOp = thisIter.next(opLength);
            const otherOp = otherIter.next(opLength);
            if ((0, import_es62.default)(thisOp.insert, otherOp.insert)) {
              retDelta.retain(
                opLength,
                AttributeMap_default.diff(
                  thisOp.attributes,
                  otherOp.attributes
                )
              );
            } else {
              retDelta.push(otherOp).delete(opLength);
            }
          }
          length3 -= opLength;
        }
      });
      return retDelta;
    }
  };
  var Delta_default = Delta;

// packages/sync/build-module/private-apis.mjs
  var privateApis = {};
  lock(privateApis, {
    ConnectionErrorCode,
    createSyncManager,
    Delta: Delta_default,
    CRDT_DOC_META_PERSISTENCE_KEY,
    CRDT_RECORD_MAP_KEY,
    LOCAL_EDITOR_ORIGIN,
    LOCAL_UNDO_IGNORED_ORIGIN,
    retrySyncConnection: () => pollingManager.retryNow()
  });

// packages/sync/build-module/index.mjs
  var YJS_VERSION = "13";
  return __toCommonJS(index_exports);
})();

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