/**
*@constructor
*/
var ChatRemote = function(app) {
	this.app = app;
	this.channelService = app.get('channelService');
  var self = this;
  };

/**
 * Add user into chat channel.
 *
 * @param {String} uid unique id for user
 * @param {String} sid server id
 * @param {String} name channel name
 * @param {boolean} flag channel parameter
 *
 */
ChatRemote.prototype.add = function(uid, sid, name, flag, cb) {
	var channel = this.channelService.getChannel(name, flag);
	var username = uid.split('*')[0];
	var param = {
		route: 'onAdd',
		user: username
	};
	channel.pushMessage(param);

	if( !! channel) {
		channel.add(uid, sid);
	}

	cb(this.get(name, flag));
};