const chokidar = require("chokidar");
const { ipcMain } = require("electron");
const settings = require("electron-settings");
const { default: ipcTypes } = require("../../src/ipc.types");

var watcher;

function StartWatcher() {
  const filePaths = settings.getSync("filePaths") || [];
  console.log("StartWatcher -> filePaths", filePaths);
  watcher = chokidar.watch(filePaths, {
    ignored: /[\/\\]\./,
    persistent: true,
    ignoreInitial: true,
    awaitWriteFinish: {
      pollInterval: 100,
      stabilityThreshold: 2000,
    },
  });
  watcher
    .on("add", function (path) {
      console.log("File", path, "has been added");
    })
    .on("addDir", function (path) {
      console.log("Directory", path, "has been added");
    })
    .on("change", function (path) {
      console.log("File", path, "has been changed");
    })
    .on("unlink", function (path) {
      console.log("File", path, "has been removed");
    })
    .on("unlinkDir", function (path) {
      console.log("Directory", path, "has been removed");
    })
    .on("error", function (error) {
      console.log("Error happened", error);
      ipcMain.emit(ipcTypes.fileWatcher.toRenderer.error, error);
    })
    .on("ready", onWatcherReady)
    .on("raw", function (event, path, details) {
      // This event should be triggered everytime something happens.
      console.log("Raw event info:", event, path, details);
    });
  return filePaths;
}

function onWatcherReady() {
  console.log("Ready!");
  ipcMain.emit(ipcTypes.fileWatcher.toRenderer.startSuccess);
}

async function StopWatcher() {
  await watcher.close();
  ipcMain.emit(ipcTypes.fileWatcher.toRenderer.stopSuccess);
  console.log("Watcher Stopped!", watcher);
}

exports.StartWatcher = StartWatcher;
exports.StopWatcher = StopWatcher;
exports.watcher = watcher;