//12306入口引导脚本

(function (window, document) {
	var basePath = window.location.protocol + "//" + window.location.host + "/js/";
	var pagename = /\/(\w+?)\.html/.exec(location.pathname) && RegExp.$1 || "index";

	var loadScript = function (path, callback) {
		var script = document.createElement("script");
		script.src = basePath + path;
		script.onload = function () {
			callback();
			document.head.removeChild(script);
		};
		document.head.appendChild(script);
	};

	//extend underscore
	_.mixin({
		mapObject: function (array, keySelector) {
			var obj = {};
			_.each(array, function (e) {
				obj[keySelector(e)] = e;
			});
			return obj;
		}
	});

	//确保内容脚本启动
	var start = $.Deferred();
	start.done(function() {
		loadScript("modules/seajs/sea.js", function() {
			seajs.config({
				base: basePath,
				alias: {
					"jquery": "modules/jquery/jquery.js",
					"underscore": "modules/underscore/underscore.js"
				},
				vars: {
					'locale': 'zh-cn'
				},
				charset: "utf-8",
				debug: true
			});
			seajs.use("ui/" + pagename);
		});
	});
	start.fail(function() {
		alert("没有安装扩展！");
	});

	if (document.body.dataset["mobileSupportInitialized"]) {
		start.resolve();
	} else {
		var timer = setTimeout(function() {
			start.reject();
		}, 3000);
		document.addEventListener("mobileSupportInitialized", function () {
			window.clearTimeout(timer);
			start.resolve();
		});
	}

})(window, document);