'use strict';

const electron = require('electron');
const EventEmitter = require('events');
const remotePowerMonitor = electron.remote.powerMonitor;

class RemotePowerMonitor extends EventEmitter {
  constructor() {
    super();

    remotePowerMonitor.on('resume', () => {
      this.emit('resume');
    });

    remotePowerMonitor.on('suspend', () => {
      this.emit('suspend');
    });

    remotePowerMonitor.on('lock-screen', () => {
      this.emit('lock-screen');
    });

    remotePowerMonitor.on('unlock-screen', () => {
      this.emit('unlock-screen');
    });
  }

  removeAllListeners() {
    remotePowerMonitor.removeAllListeners();
    super.removeAllListeners();
  }

  getSystemIdleTimeMs() {
    if (remotePowerMonitor.getSystemIdleTime != null) {
      return remotePowerMonitor.getSystemIdleTime() * 1000;
    } else {
      return 0;
    }
  }
}

module.exports = new RemotePowerMonitor();