Light12306/Web12306/js/ui/ui-autorefresh.js

define(function (require, exports, module) {
	var sessMgr = require("../account/sessionMgr.js");
	var session = sessMgr.current;
	var currentProfile = sessMgr.currentProfile;
	var expdata = require("../data.js");
	var inAutoRefresh = false;
	var media = require("../platform/media.js");
	var query = require("../otn/queryticket.js");
	var trainSuggest = require("../otn/trainstationsuggest.js");

	sessMgr.on("sessionChanged", function () {
		session = sessMgr.current;
	});
	sessMgr.on("currentProfileChanged", function () {
		currentProfile = sessMgr.currentProfile;
	});

	var processTrains = function (data) {
		if (!currentProfile || (!session.options.showMoreOpt && !inAutoRefresh))
			return;

		//预置参数
		data.enableAuto = session.options.showMoreOpt;
		data.inAuto = inAutoRefresh;

		var count = Math.max(!currentProfile.partialSubmitEnabled && currentProfile.passengers ? currentProfile.passengers.length : 0, 1);
		var seat = null, train = null, entry = null;

		if (data.original.length && !data.include.length && currentProfile.selectedTrain && currentProfile.selectedTrain.length && !currentProfile.byAuto) {
			//TODO 没有查到任何车次
		}

		var trainRegCache = _.map(expdata.translateTrain(currentProfile.selectedTrain || []), function (s) { return new RegExp("^" + s + "$", "i"); });
		if (!trainRegCache || !trainRegCache.length) {
			trainRegCache = [/.*/];
		}

		//搜索车次
		var st = currentProfile.selectedSeatType;
		if (!st || !st.length)
			st = expdata.seatDisplayOrder;
		if (currentProfile.selectSeatFirst) {
			//席别优先
			seat = _.find(st, function (s) {
				var _treg = _.find(trainRegCache, function (t) {
					entry = _.find(data.available, function (item) {
						return t.test(item.code) && (_.findWhere(item.tickets, { code: s }) || {}).count >= count;
					});
					return typeof (entry) != 'undefined';
				});
				return typeof (_treg) != 'undefined';
			});
		} else {
			//车次优先
			_.find(trainRegCache, function (t) {
				seat = _.find(st, function (s) {
					entry = _.find(data.available, function (item) {
						return t.test(item.code) && (_.findWhere(item.tickets, { code: s }) || {}).count >= count;
					});
					return typeof (entry) != 'undefined';
				});
				return typeof (seat) != 'undefined';
			});
		}

		//查找结果
		if (seat) {
			train = entry.code;

			//乘客
			var ticketCount = _.findWhere(entry.tickets, { code: seat }).count;
			var pcount = Math.min(ticketCount, currentProfile.passengers ? currentProfile.passengers.length : 0);

			data.auto = {
				train: train,
				seat: seat,
				passengers: _.first(currentProfile.passengers || [], pcount),
				data: entry
			};
			data.auto.passengers.forEach(function (p) { p.seat = seat; });
		} else {
			data.auto = null;
		}

		//判断是否需要继续刷新
		if (data.auto !== null) {
			//找到车次了
			data.nextTime = null;
			if (inAutoRefresh) {
				media.play();
				media.notify("可以订票了！", "终于等到可以订的 " + data.auto.train + "次列车" + expdata.toSeatTypeName(data.auto.seat) + "！");
			}
			if (currentProfile.autoSubmitEnabled && data.enableAuto && expdata.isAutoBookEnabled(currentProfile)) {
				auto.fireEvent("performAutoSubmit", data.auto);
			}
		} else {
			//规则：如果只有待售的，那么等到指定的时间
			//如果没有且在整点附近的，那么等到整点
			//否则就按常规时间
			var now = new Date();
			if (data.available.length && currentProfile.autoWaitToSell && data.include.length && _.every(data.include, function (x) { return x.available === -1; })) {
				var next = _.min(_.map(data.include, function (x) {
					return x.selltime;
				}));
				data.nextTime = now.getDate() === next.getDate() && next > now ? (next - now) / 1000 + 15 : currentProfile.autoRefreshDelay;
			} else if (now.getMinutes() >= 59) {
				data.nextTime = 61 - now.getSeconds();
			} else {
				data.nextTime = currentProfile.autoRefreshDelay;
			}
		}
	};

	var ev = require("../platform/EventObject.js");
	var AutoRefresh = function () {
		ev.apply(this);
		var that = this;
		var refreshDiv = $("#auto_refresh");
		var refreshInfoSpan = $("section.auto-refresh-info span");
		var refreshInfoP = $("section.auto-refresh-info>p");
		var refreshTimer = null;
		var countdownTime = null;
		var refreshStartTime = null;
		var refreshElapseTimer = null;
		var refreshCount = 0;
		var currentSelectedDate;
		var currentDateLoopIndex = -1;

		this.init = function () {
			query.events.on("processTrains", function (e, d) {
				processTrains(d);
				if (inAutoRefresh)
					trainSuggest.setQueryResult(d, refreshCount);

				if (!d.auto && (d.nextTime && inAutoRefresh)) {
					countdownTime = d.nextTime;
					that.start();
					d.inAutoRefresh = inAutoRefresh;
				} else if (d.auto) {
					that.stop();
				}
			}).on("requestFailed", function () {
				//失败？不做任何处理
			});
			that.on("performAutoSubmit", function (e, d) {
				that.dispatchEvent("requireSubmitOrder", d);
			});
		};
		this.start = function () {
			if (!inAutoRefresh) {
				currentSelectedDate = sessMgr.currentProfile.depDate;
				refreshCount = 0;
				refreshStartTime = new Date();
				inAutoRefresh = true;
				refreshDiv.height();
				refreshDiv.addClass("final");
				refreshElapseTimer = setInterval(that.showElapsedTime, 1000);
				that.showElapsedTime();
				that.updateDisplay();
				$("#result>table").addClass("auto-refresh");
				location.hash = "#result";
				trainSuggest.clearQueryResultCache();
			}

			inAutoRefresh = true;
			if (!countdownTime)
				countdownTime = currentProfile.autoRefreshDelay;
			refreshTimer = setInterval(that.countdown, 100);
			refreshInfoP.eq(2).hide();
			refreshInfoP.eq(1).show();
			that.showCountDownInfo();
		};
		this.stop = function () {
			if (!inAutoRefresh)
				return;

			inAutoRefresh = false;
			refreshTimer && (clearInterval(refreshTimer), refreshTimer = null);
			refreshElapseTimer && (clearInterval(refreshElapseTimer), refreshElapseTimer = null);
			refreshStartTime = null;
			refreshDiv.removeClass("final");
			$("#date_loop_editor>span.selected").removeClass("selected");
			$("#result>table").removeClass("auto-refresh");
			currentDateLoopIndex = -1;
			currentSelectedDate && (sessMgr.currentProfile.depDate = currentSelectedDate);
			currentSelectedDate = null;
			trainSuggest.clearQueryResultCache();

			$("tr.train-needauto").show();
		};
		this.updateDisplay = function () {
			refreshInfoSpan.eq(0).html(refreshCount);
		};
		this.showElapsedTime = function () {
			var ed = (new Date() - refreshStartTime) / 1000;
			var m = Math.floor(ed / 60);
			var s = Math.floor(ed % 60);

			refreshInfoSpan.eq(1).html(m);
			refreshInfoSpan.eq(2).html(s);
		};
		this.countdown = function () {
			countdownTime -= 0.1;
			that.showCountDownInfo();

			if (countdownTime <= 0) {
				clearInterval(refreshTimer);
				refreshTimer = null;
				refreshInfoP.eq(1).hide();
				refreshInfoP.eq(2).show();
				refreshCount++;
				that.updateDisplay();

				//已经在刷新状态了？日期轮询
				if (sessMgr.currentProfile.dateloop && sessMgr.currentProfile.dateloop) {
					currentDateLoopIndex++;

					$("#date_loop_editor>span.selected").removeClass("selected");
					if (currentDateLoopIndex > sessMgr.currentProfile.dateloop.length - 1) {
						sessMgr.currentProfile.depDate = currentSelectedDate;
						currentDateLoopIndex = -1;
					} else {
						sessMgr.currentProfile.depDate = sessMgr.currentProfile.dateloop[currentDateLoopIndex];
						$("#date_loop_editor>span:eq(" + currentDateLoopIndex + ")").addClass("selected");
					}
				}

				that.fireEvent("requestQueryTicket");
			}
		};
		this.showCountDownInfo = function () {
			var str = (Math.round(countdownTime * 10) / 10) + "";
			if (str.indexOf(".") === -1)
				str += ".0";
			refreshInfoSpan.eq(3).html(str);
		};

		Object.defineProperties(this, {
			inAutoRefresh: {
				get: function () {
					return inAutoRefresh;
				}
			}
		});

		$(document).on("click", "#btn_start_autorefresh", function () {
			$(this).closest("tr").hide();
			that.start();
		});
		$("#btn_stop_refresh").click(this.stop);

		return this;
	};
	AutoRefresh.prototype = Object.create(ev);
	AutoRefresh.constructor = AutoRefresh;

	var auto = new AutoRefresh();
	return auto;
});