"use strict";
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 file_watcher_exports = {};
__export(file_watcher_exports, {
  FileWatcher: () => FileWatcher
});
module.exports = __toCommonJS(file_watcher_exports);
var import_watcher = __toESM(require("@parcel/watcher"));
var import_concurrency_utils = require("./concurrency-utils");
var import_event_emitter = require("./event-emitter");
class FileWatcher {
  constructor(_subscription, _errorEmitter) {
    this._subscription = _subscription;
    this._errorEmitter = _errorEmitter;
  }
  static async watch(dir, fn, opt) {
    const eventEmitter = new import_event_emitter.EventEmitter();
    let subscriptionHandler = async (err, events) => {
      if (err) {
        eventEmitter.emit("error", err);
        return;
      }
      try {
        await fn(events);
      } catch (thrown) {
        eventEmitter.emit("error", thrown);
      }
    };
    if (opt?.debounceMs) {
      subscriptionHandler = (0, import_concurrency_utils.debounceAsync)(subscriptionHandler, opt.debounceMs);
    }
    const subscription = await import_watcher.default.subscribe(dir, subscriptionHandler, opt);
    return new FileWatcher(subscription, eventEmitter);
  }
  async close() {
    await this._subscription.unsubscribe();
    this._errorEmitter.emit("close", {});
  }
  wait = () => new Promise((resolve, reject) => {
    this._errorEmitter.once("error", reject);
    this._errorEmitter.once("close", resolve);
  });
}
// Annotate the CommonJS export names for ESM import in node:
0 && (module.exports = {
  FileWatcher
});
//# sourceMappingURL=file-watcher.js.map
