var WEBSOCKET = function(model) {

    var wsUrl = ['localhost','silvrtree.co.uk'];
    var wsPort = '9000';
    let useUrl = 0;

    if ('https:' === document.location.protocol) {
      wsUrl = 'wss://' + wsUrl[useUrl] + '';
      wsPort = '';
    } else {
      //wsUrl = 'ws://localhost:3001';
      wsUrl = 'ws://' + wsUrl[useUrl] + '';
      wsPort = '';
    }

    this.socket = null;
    this.timer = 0;
    this.clock = null;

    this.startWebSocket = function() {
      'use strict';

      var url = (wsPort === '') ? wsUrl : wsUrl + ':' + wsPort;
      console.log('Starting socket', url);
      var wsCtor = window['MozWebSocket'] ? MozWebSocket : WebSocket;
      this.socket = new wsCtor(url, 'stream');

      this.socket.onopen = this.handleWebsocketOnOpen.bind(this);
      this.socket.onmessage = this.handleWebsocketMessage.bind(this);
      this.socket.onclose = this.handleWebsocketClose.bind(this);
      this.socket.onerror = function(e) {
        console.error(e);
      };

    };

  this.send = function(msg) {
    console.log('Sending', msg);
    this.socket.send(msg);
  };



    this.handleData = function(d) {
      model.trigger('message',d);
    };

    this.handleWebsocketOnOpen = function() {
      'use strict';
      this.retry = 0;

      console.log('**** Websocket Connected ****');
      this.clock = new Date();
    };

    this.handleWebsocketMessage = function(message) {
      var command;

      try {
        command = JSON.parse(message.data);
      }
      catch (e) { /* Do nothing */
      }
      if (command) {
        this.handleData.call(this,command);
      }
    };

    this.handleWebsocketClose = function() {
      console.error('WebSocket Connection Closed.');
      var now = new Date();

      var uptime = now.getTime() - this.clock.getTime();
      console.log('Socket alive for', uptime / 1000);
      var self = this;
      console.log('Waiting ', 5000);
      this.timer = setTimeout(function() {self.startWebSocket();},5000);
    };

    this.startWebSocket();

  };