@assistant-ui/react/dist/runtimes/remote-thread-list/OptimisticState.js

Typescript/React library for AI Chat

"use strict";
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
  for (var name in all)
    __defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
  if (from && typeof from === "object" || typeof from === "function") {
    for (let key of __getOwnPropNames(from))
      if (!__hasOwnProp.call(to, key) && key !== except)
        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
  }
  return to;
};
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);

// src/runtimes/remote-thread-list/OptimisticState.ts
var OptimisticState_exports = {};
__export(OptimisticState_exports, {
  OptimisticState: () => OptimisticState
});
module.exports = __toCommonJS(OptimisticState_exports);
var import_BaseSubscribable = require("./BaseSubscribable.js");
var pipeTransforms = (initialState, extraParam, transforms) => {
  return transforms.reduce((state, transform) => {
    return transform?.(state, extraParam) ?? state;
  }, initialState);
};
var OptimisticState = class extends import_BaseSubscribable.BaseSubscribable {
  _pendingTransforms = [];
  _baseValue;
  _cachedValue;
  constructor(initialState) {
    super();
    this._baseValue = initialState;
    this._cachedValue = initialState;
  }
  _updateState() {
    this._cachedValue = this._pendingTransforms.reduce((state, transform) => {
      return pipeTransforms(state, transform.task, [
        transform.loading,
        transform.optimistic
      ]);
    }, this._baseValue);
    this._notifySubscribers();
  }
  get baseValue() {
    return this._baseValue;
  }
  get value() {
    return this._cachedValue;
  }
  update(state) {
    this._baseValue = state;
    this._updateState();
  }
  async optimisticUpdate(transform) {
    const task = transform.execute();
    const pendingTransform = { ...transform, task };
    try {
      this._pendingTransforms.push(pendingTransform);
      this._updateState();
      const result = await task;
      this._baseValue = pipeTransforms(this._baseValue, result, [
        transform.optimistic,
        transform.then
      ]);
      return result;
    } finally {
      const index = this._pendingTransforms.indexOf(pendingTransform);
      if (index > -1) {
        this._pendingTransforms.splice(index, 1);
      }
      this._updateState();
    }
  }
};
// Annotate the CommonJS export names for ESM import in node:
0 && (module.exports = {
  OptimisticState
});
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