mqtt_server/server.js

/**
 * Created by Martin on 08/02/2016.
 */
const express = require('express');
const path = require('path');
const server = require('http').createServer();
let ejs = require('ejs');
const morgan = require('morgan');
const cookieparser = require('cookie-parser');
let session = require('express-session');
const sessionLW = require('express-session-lw');
const methodoverride = require('method-override');
const bodyparser = require('body-parser');
const errorhandler = require('errorhandler');
const log4js = require('log4js');
const logger = log4js.getLogger();
let authentication = require('basic-authentication');
const Wemo = require('wemo-client');
const Events = require('events');
const busEmitter = new Events.EventEmitter();

const WebSocketServer = require('ws').Server;
const wss = new WebSocketServer({server: server});

const SocketHandler = require('./lib/wshandlerv2');

let webSocket = new SocketHandler(busEmitter, wss);


let mqttClient = require('./lib/mqtt/mqttClient');
//Var mqttConnect = require('./lib/mqtt/mqttConnect');

let wemoClient = null;


let wemo = new Wemo();

wemo.discover(function(deviceInfo) {
  logger.info('Wemo Device Found: %j', deviceInfo);

  // Get the client for the found device
  wemoClient = wemo.client(deviceInfo);

  // Handle BinaryState events
  wemoClient.on('binaryState', function(value) {
    logger.debug('Binary State changed to: %s', value);
    mqttClient.updateGlobal(value);
  });

  // Turn the switch on
  wemoClient.setBinaryState(0);
});

busEmitter.on('changeState', function(mode) {
    logger.info('Changing state..');

    if (wemoClient !== null) {
      wemoClient.setBinaryState(mode);
      let newState = wemoClient.getBinaryState();
      busEmitter.emit('updateState', newState);
    } else {
      console.error('No wemoClient');
    }

  });

/* setInterval(function() {
    let newState = wemoClient.getBinaryState();
    busEmitter.emit('updateState', newState);

  }, 30000);*/


let mqtt = new mqttClient.mqttClient(busEmitter);

require('sugar-date');

let isProduction = false;

process.env.NODE_ENV = process.env.NODE_ENV || 'development';

if (process.env.NODE_ENV === 'production') {
  isProduction = true;
}

logger.warn('isProduction:', isProduction);

const heartBeat = function() {
  this.pingTimer = 0;
  this.count = 0;
  this.rate = 90000;

  this.setupPing = function() {
    logger.warn('Starting heartbeat...');

    this.pingTimer = setTimeout(function() {
      this.ping();
    }.bind(this), 10000);
  };

  this.ping = function() {
    const now = new Date;
    const mod = this.rate - (now.getTime() % this.rate);
    this.count++;
    if (this.count > 5) {
      this.count = 1;
    }

    const _newDots = ['.', '.', '.', '.', '.'];
    _newDots[this.count - 1] = 'O';
    logger.info(_newDots.join(''));

    busEmitter.emit('sendSocket', {tick: new Date().getTime()});
    this.pingTimer = setTimeout(function() {
      this.ping();
    }.bind(this), mod);

  };

  this.setupPing();
};

const app = express();

const port = (process.env.VCAP_APP_PORT || 3010);
let host = (process.env.VCAP_APP_HOST || 'localhost');


app.set('port', port);
app.set('views', __dirname + '/views');
app.set('view engine', 'ejs');
app.use(morgan('combined'));
app.use(cookieparser('your secret here'));
/*App.use(session({
  secret: '1234567890QWERTY', resave: false, saveUninitialized: false
}));*/
app.use(sessionLW());
app.use(methodoverride());

app.use(bodyparser.urlencoded({extended: false}));

// Parse application/json
app.use(bodyparser.json());

app.use(function(req, res, next) {
  res.header('Access-Control-Allow-Origin', '*');
  res.header('Access-Control-Allow-Headers', 'X-Requested-With');
  next();
});

// Run 'npm run production' to use dist
const staticDir = isProduction ? 'dist' : 'app';

app.use(express.static(path.join(__dirname, staticDir)));
app.use(errorhandler({dumpExceptions: true, showStack: true}));

// Events and sockets

function originIsAllowed(origin) {
  // Put logic here to detect whether the specified origin is allowed.
  return true;
}

// Glue routes

//if (isProduction) {
heartBeat();
//}


app.get('*', function(req, res) {
  res.status(404).render('404',{delimiter: '^'});
});

server.on('request', app);
server.listen(port, function() { logger.info('New server listening on ' + server.address().port) });