/**
 * This file is part of the NocoBase (R) project.
 * Copyright (c) 2020-2024 NocoBase Co., Ltd.
 * Authors: NocoBase Team.
 *
 * This project is dual-licensed under AGPL-3.0 and NocoBase Commercial License.
 * For more information, please refer to: https://www.nocobase.com/agreement.
 */

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 __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 __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);
var text_exports = {};
__export(text_exports, {
  TextLoader: () => TextLoader
});
module.exports = __toCommonJS(text_exports);
var import_documents = require("@langchain/core/documents");
var import_env = require("@langchain/core/utils/env");
var import_base = require("@langchain/core/document_loaders/base");
class TextLoader extends import_base.BaseDocumentLoader {
  filePathOrBlob;
  constructor(filePathOrBlob) {
    super();
    this.filePathOrBlob = filePathOrBlob;
  }
  async parse(raw) {
    return [raw];
  }
  async load() {
    let text;
    let metadata;
    if (typeof this.filePathOrBlob === "string") {
      const { readFile } = await TextLoader.imports();
      text = await readFile(this.filePathOrBlob, "utf8");
      metadata = { source: this.filePathOrBlob };
    } else {
      text = await this.filePathOrBlob.text();
      metadata = { source: "blob", blobType: this.filePathOrBlob.type };
    }
    const parsed = await this.parse(text);
    parsed.forEach((pageContent, i) => {
      if (typeof pageContent !== "string") {
        throw new Error(`Expected string, at position ${i} got ${typeof pageContent}`);
      }
    });
    return parsed.map(
      (pageContent, i) => new import_documents.Document({
        pageContent,
        metadata: parsed.length === 1 ? metadata : {
          ...metadata,
          line: i + 1
        }
      })
    );
  }
  static async imports() {
    try {
      const { readFile } = await import("node:fs/promises");
      return { readFile };
    } catch (e) {
      console.error(e);
      throw new Error(
        `Failed to load fs/promises. TextLoader available only on environment 'node'. It appears you are running environment '${(0, import_env.getEnv)()}'. See https://<link to docs> for alternatives.`
      );
    }
  }
}
// Annotate the CommonJS export names for ESM import in node:
0 && (module.exports = {
  TextLoader
});
