const LifxClient = require('node-lifx').Client;
const client = new LifxClient();
const em = require('events').EventEmitter;
const util = require('util');
const logger = require('log4js').getLogger('Lights');
logger.level = 'debug';

const LightController = function() {
  const _this = this;
  const devices = [];
  client.on('light-new', light => {
    _this.emit('found', light);
    devices.push(light);
    logger.debug('New light found.');
    logger.debug(`ID: ${ light.id}`);
    logger.debug(`IP: ${ light.address }:${ light.port}`);

    light.getState((err, info) => {
      if (err)
        logger.debug(err);

      logger.debug(`Label: ${ info.label}`);
      logger.debug('Power:', (info.power === 1) ? 'on' : 'off');
      logger.debug('Color:', info.color);
      logger.debug('info', info);
      // _this.emit(info.label.replace(' ',''), )
    });

    light.getHardwareVersion((err, info) => {
      if (err)
        logger.debug(err);

      logger.debug(`Device Info: ${ info.vendorName } - ${ info.productName}`);
      logger.debug('Features: ', info.productFeatures, '\n');
    });
  });

  client.on('listening', () => {
    const address = client.address();
    logger.debug(
      `Started LIFX listening on ${ 
        address.address }:${ address.port }\n`
    );
  });

  client.on('light-offline', light => {
    logger.debug(`Light: ${light.label} has gone offline`);
    _this.emit(light.label.replace(' ', ''), light.status);
  });

  client.on('light-online', light => {
    logger.debug(`Light: ${light.label} has come online`);
    logger.debug(light.label.replace(' ', ''), light.status);
    _this.emit(light.label.replace(' ', ''), { 'status':light.status, 'id':light.id });
  });

  client.on('message', msg => {
    // logger.debug('>> msg', msg);
  });

  client.init({
    'lightOfflineTolerance': 3, // A light is offline if not seen for the given amount of discoveries
    'messageHandlerTimeout': 45000, // in ms, if not answer in time an error is provided to get methods
    'startDiscovery': true, // start discovery after initialization
    'resendPacketDelay': 150, // delay between packages if light did not receive a packet (for setting methods with callback)
    'resendMaxTimes': 3, // resend packages x times if light did not receive a packet (for setting methods with callback)
    'debug': false, // logs all messages in console if turned on
    'address': '0.0.0.0', // the IPv4 address to bind the udp connection to
    'broadcast': '255.255.255.255', // set's the IPv4 broadcast address which is addressed to discover bulbs
    'lights': [] // Can be used provide a list of known light IPv4 ip addresses if broadcast packets in network are not allowed
    // For example: ['192.168.0.112', '192.168.0.114'], this will then be addressed directly
  });

  this.on('newListener', listener => {
    logger.info(`Event Listener: ${ listener}`);
  });

  this.on('setColour', (data) => {
    for(const light of devices) {
      if (light.id === data.id) {
        logger.info('Setting color of ', light.label);
        light.color(data.color.hue, data.color.saturation, data.color.brightness, data.color.kelvin);
      }
    }
  });

  return this;
};

util.inherits(LightController, em);

module.exports = LightController;