function Channel() {
	EventEmitter.call(this);
	this.callbacks = [];
	this.messages = [];
	this.channels = [];
	this.listSs = [];
	this.chCfg = require("./config").Config("CHANNEL");
	var a = this;
	setInterval(function () {
		var b = new Date;
		for(var c in a.callbacks) {
			while(a.callbacks[c].length > 0 && b - a.callbacks[c][0].timestamp > a.chCfg.callback_timeout) a.callbacks[c].shift().callback([])
		}
	}, 5e3)
}
var util = require("util");
var EventEmitter = require("events").EventEmitter;
util.inherits(Channel, EventEmitter);
module.exports = Channel;
Channel.prototype.createChannel = function (a, b, c, d) {
	var e = {};
	switch(d) {
	case "randomChat":
		e = {
			id: a,
			chId: Math.floor(Math.random() * 99999999).toString(),
			gender: b,
			find: c,
			available: true,
			type: d
		};
		break;
	case "groupChat":
		e = {
			mem: [a],
			chId: Math.floor(Math.random() * 99999999).toString(),
			type: d,
			identify: 1
		};
		break;
	default:
		break
	}
	this.channels.push(e);
	if(!this.messages[e.chId]) this.messages[e.chId] = [];
	if(!this.callbacks[e.chId]) this.callbacks[e.chId] = [];
	return e.chId
};
Channel.prototype.joinChannel = function (a, b, c, d) {
	var e = "";
	var f = "";
	var g = {
		wait: true,
		chId: f
	};
	switch(d) {
	case "randomChat":
		e = this.joinRandomChannel(b, c);
		break;
	case "groupChat":
		e = this.joinGroupChannel(a);
		break;
	default:
		break
	}
	if(e !== -1) {
		f = this.channels[e].chId;
		var h = {};
		if(d === "groupChat") {
			if(this.channels[e].mem.length > 2) g.wait = false;
			this.channels[e].identify++;
			g.identify = this.channels[e].identify
		} else if(d === "randomChat") {
			h = {
				id: a,
				chId: f,
				gender: b,
				find: c,
				available: false,
				type: d
			};
			g.wait = false;
			this.channels.push(h)
		}
	} else {
		f = this.createChannel(a, b, c, d);
		if(d == "groupChat") g.identify = 1
	}
	g.chId = f;
	if(!this.listSs[f]) this.listSs[f] = [];
	this.listSs[f].push({
		id: a
	});
	return g
};
Channel.prototype.joinRandomChannel = function (a, b) {
	var c = -1;
	switch(b) {
	case "all":
		for(var d in this.channels) if(this.channels[d].type == "randomChat" && (this.channels[d].find == b && this.channels[d].available == true || this.channels[d].find == a && this.channels[d].available == true)) {
			this.channels[d].available = false;
			c = d;
			break
		}
		break;
	case "male":
	case "female":
		for(var d in this.channels) if(this.channels[d].type == "randomChat" && (this.channels[d].find == a && b == this.channels[d].gender && this.channels[d].available == true || this.channels[d].find == "all" && this.channels[d].available == true)) {
			this.channels[d].available = false;
			c = d;
			break
		}
		break;
	case "none":
		for(var d in this.channels) if(this.channels[d].type == "randomChat" && this.channels[d].available == true) {
			this.channels[d].available = false;
			c = d;
			break
		}
		break;
	default:
		break
	}
	return c
};
Channel.prototype.joinGroupChannel = function (a) {
	var b = -1;
	for(var c in this.channels) if(this.channels[c].type === "groupChat" && this.channels[c].mem.length < chCfg.group_chat_max_user) {
		this.channels[c].mem.push(a);
		b = c;
		break
	}
	return b
};
Channel.prototype.countUserOnline = function () {
	var a = 0;
	for(var b in this.channels) {
		if(this.channels[b].type == "randomChat") a++;
		else if(this.channels[b].type == "groupChat") a += this.channels[b].mem.length
	}
	return a
};
Channel.prototype.leaveChannel = function (a, b, c) {
	switch(c) {
	case "randomChat":
		this.leaveRandomChannel(a, b);
		break;
	case "groupChat":
		this.leaveGroupChannel(a, b);
		break;
	default:
		break
	}
	return
};
Channel.prototype.leaveRandomChannel = function (a, b) {
	for(var c in this.channels) {
		if(this.channels[c].id == a && this.channels[c].chId == b) {
			this.channels.splice(c, 1);
			break
		}
	}
	for(var c in this.channels) {
		if(this.channels[c].chId == b) {
			this.channels[c].available = true;
			break
		}
	}
};
Channel.prototype.leaveGroupChannel = function (a, b) {
	for(var c in this.channels) if(this.channels[c].chId == b) {
		for(var d in this.channels[c].mem) if(this.channels[c].mem[d] == a) {
			this.channels[c].mem.splice(d, 1);
			break
		}
		if(this.channels[c].mem.length == 0) this.channels.splice(c, 1);
		break
	}
};
Channel.prototype.countGroup = function (a) {
	for(var b in this.channels) if(this.channels[b].chId == a) return this.channels[b].mem.length;
	return 0
};
Channel.prototype.reconnect = function (a) {
	for(var b in this.channels) {
		if(this.channels[b].chId == a) {
			this.channels[b].available = true;
			break
		}
	}
	return
};
Channel.prototype.deleteListMessageAndSession = function (a, b) {
	for(var c in this.messages[a]) if(c == b) this.messages[a].splice(c, 1);
	for(var c in this.listSs[a]) if(this.listSs[a][c].id == b) this.listSs[a].splice(c, 1)
};
Channel.prototype.appendMessage = function (a, b, c, d, e) {
	var f = {
		id: a,
		chId: b,
		timestamp: (new Date).getTime(),
		type: c,
		textchat: d
	};
	switch(c) {
	case "join":
	case "quit":
		f.counter = this.countUserOnline();
		break;
	default:
		break
	}
	if(e) f.identify = e;
	if(this.listSs[b]) var g = this.listSs[b].slice(0);
	else var g = [];
	while(this.callbacks[b].length > 0) {
		var h = this.callbacks[b].shift();
		h.callback([f]);
		for(var i in g) if(g[i].id == h.id) {
			g.splice(i, 1);
			break
		}
	}
	if(g) while(g.length > 0) {
		var a = g.shift().id;
		if(!this.messages[b][a]) this.messages[b][a] = [];
		this.messages[b][a].push(f)
	}
};
Channel.prototype.query = function (a, b, c, d) {
	var e = [];
	if(this.messages[c] && this.messages[c][d]) while(this.messages[c][d].length > 0) {
		var f = this.messages[c][d].shift();
		e.push(f)
	}
	if(e.length != 0) b(e);
	else this.callbacks[c].push({
		id: d,
		timestamp: new Date,
		callback: b
	})
}