socket-server.js

'use strict';
var socketIO = require('socket.io');
var ot = require('ot');
var roomList = {};
module.exports = function(server){
var str = "This is a markdown heading\n\n" + 'var i = i + 1;';


  var io = socketIO(server);
  io.on('connection',function(socket){
    socket.on('joinRoom',function(data){
      if(!roomList[data.room]){
        var socketIOServer = new ot.EditorSocketIOServer(str,[],data.room,function(socket,cb){
          var self = this;
          Task.findByIdAndUpdate(data.room,{content : self.document},function(err){
            if(err) return cb(false);
            cb(true);
          })
        });
        roomList[data.room]= socketIOServer;

      }
      roomList[data.room].addClient(socket);
      roomList[data.room].setName(socket,data.username);
      socket.room = data.room;
      socket.join(data.room);
    });
    socket.on('chatMessage', function(data){
      io.to(socket.room).emit('chatMessage',data);
    });

    socket.on('disconnect',function(){
      socket.leave(socket.room);
    });
  })
}