define(function (require, exports, module) {
	var param = require("../data.js");
	exports.targetId = window.targetExtensionId;

	var EventObject = require("./EventObject.js");

	var Port = function () {
		EventObject.apply(this);
		var port = chrome.runtime.connect(exports.targetId, { name: "12306Chat" });
		var that = this;
		var connected = true;

		port.onMessage.addListener(function (m) {
			if (!m || !m.action)
				return;

			that.fireEvent(m.action, m.detail || null);
		});
		port.onDisconnect.addListener(function () {
			that.fireEvent("disconnect");
		});
		this.postMessage = function (action, detail) {
			port.postMessage({
				action: action,
				detail: detail || null
			});
		};

		Object.defineProperty(this, "connected", {
			get: function () {
				return connected;
			}
		});

		return this;
	};
	Port.prototype = Object.create(EventObject);
	Port.constructor = Port;

	var _port;
	Object.defineProperty(exports, "port", {
		get: function () {
			return _port || (_port = new Port());
		}
	});

	exports.postMessage = function (message) {
		exports.port.postMessage(message);
	};

	exports.sendMessage = function (m, response) {
		if (!exports.targetId)
			throw "extension not connected.";

		chrome.runtime.sendMessage(exports.targetId, m, response || function () { });
	};

	exports.track = function (type, values) {
		/// <summary>发出跟踪记录</summary>
		chrome.runtime.sendMessage(exports.targetId, {
			action: "track",
			detail: {
				type: type,
				values: values
			}
		}, function () { });

		//百度统计
		if (window._hmt && type !== param.trackTypes.OPEN_PAGE_INDEX && type !== param.trackTypes.JOIN_CHAT && type !== param.trackTypes.EXIT_CHAT) {
			try {
				window._hmt.push(['_trackEvent', '12306_' + type, 'actionreport', '', '']);
			} catch (e) {

			}
		}
	};

	window.port = exports;
});