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// src/index.ts
var src_exports = {};
__export(src_exports, {
  CollaborationExtension: () => CollaborationExtension
});
module.exports = __toCommonJS(src_exports);

// src/collaboration-extension.ts
var import_core = require("@remirror/core");
var import_collab = require("@remirror/pm/collab");
var import_transform = require("@remirror/pm/transform");
var _flushSendableSteps_dec, _cancelSendableSteps_dec, _sendCollaborationUpdate_dec, _a, _CollaborationExtension_decorators, _init;
_CollaborationExtension_decorators = [(0, import_core.extension)({
  defaultOptions: {
    version: 0,
    clientID: (0, import_core.uniqueId)(),
    debounceMs: 250
  },
  staticKeys: ["version", "clientID", "debounceMs"],
  handlerKeys: ["onSendableReceived"]
})];
var CollaborationExtension = class extends (_a = import_core.PlainExtension, _sendCollaborationUpdate_dec = [(0, import_core.command)()], _cancelSendableSteps_dec = [(0, import_core.command)()], _flushSendableSteps_dec = [(0, import_core.command)()], _a) {
  constructor() {
    super(...arguments);
    __runInitializers(_init, 5, this);
    __publicField(this, "_debounceGetSendableSteps");
  }
  get name() {
    return "collaboration";
  }
  get debounceGetSendableSteps() {
    if (!this._debounceGetSendableSteps) {
      this._debounceGetSendableSteps = (0, import_core.debounce)(
        this.options.debounceMs,
        this.getSendableSteps.bind(this)
      );
    }
    return this._debounceGetSendableSteps;
  }
  sendCollaborationUpdate(attributes) {
    return ({ state, dispatch }) => {
      (0, import_core.invariant)(isValidCollaborationAttributes(attributes), {
        message: "Invalid attributes passed to the collaboration command."
      });
      const { version, steps } = attributes;
      if ((0, import_collab.getVersion)(state) > version) {
        return false;
      }
      if (dispatch) {
        dispatch(
          (0, import_collab.receiveTransaction)(
            state,
            steps.map((item) => import_transform.Step.fromJSON(this.store.schema, item)),
            steps.map((item) => item.clientID)
          )
        );
      }
      return true;
    };
  }
  cancelSendableSteps() {
    return () => {
      var _a2;
      (_a2 = this.debounceGetSendableSteps) == null ? void 0 : _a2.cancel();
      return true;
    };
  }
  flushSendableSteps() {
    return ({ state }) => {
      var _a2;
      (_a2 = this.debounceGetSendableSteps) == null ? void 0 : _a2.cancel();
      this.getSendableSteps(state);
      return true;
    };
  }
  createExternalPlugins() {
    const { version, clientID } = this.options;
    const plugin = (0, import_collab.collab)({
      version,
      clientID
    });
    return [plugin];
  }
  onStateUpdate(props) {
    var _a2;
    (_a2 = this.debounceGetSendableSteps) == null ? void 0 : _a2.call(this, props.state);
  }
  onDestroy() {
    this.store.commands.flushSendableSteps();
  }
  /**
   * This passes the sendable steps into the `onSendableReceived` handler defined in the
   * options when there is something to send.
   */
  getSendableSteps(state) {
    const sendable = (0, import_collab.sendableSteps)(state);
    if (sendable) {
      const jsonSendable = {
        version: sendable.version,
        steps: sendable.steps.map((step) => step.toJSON()),
        clientID: sendable.clientID
      };
      this.options.onSendableReceived({ sendable, jsonSendable });
    }
  }
};
_init = __decoratorStart(_a);
__decorateElement(_init, 1, "sendCollaborationUpdate", _sendCollaborationUpdate_dec, CollaborationExtension);
__decorateElement(_init, 1, "cancelSendableSteps", _cancelSendableSteps_dec, CollaborationExtension);
__decorateElement(_init, 1, "flushSendableSteps", _flushSendableSteps_dec, CollaborationExtension);
CollaborationExtension = __decorateElement(_init, 0, "CollaborationExtension", _CollaborationExtension_decorators, CollaborationExtension);
__runInitializers(_init, 1, CollaborationExtension);
var isValidCollaborationAttributes = (attributes) => !(!attributes || !(0, import_core.isArray)(attributes.steps) || !(0, import_core.isNumber)(attributes.version));
// Annotate the CommonJS export names for ESM import in node:
0 && (module.exports = {
  CollaborationExtension
});