define(function (require, exports, module) {
	exports.trimToDay = function (d) {
		d = d || new Date();
		if (!(d instanceof Date)) {
			d = new Date(d + '');
		}

		var x = new Date();
		x.setTime(d.getTime() - d.getTime() % (1000 * 3600 * 24));
		return x;
	};
	//exports.addDays = function (date, days) {
	//	var x = new Date();
	//	x.setTime(date.getTime() - date.getTime() % (1000 * 3600 * 24) + 1000 * 3600 * 24 * days);
	//	return x;
	//};
	exports.addDays = function (date, offset) {
		date = exports.toDate(date);
		return new Date(date.getFullYear(), date.getMonth(), date.getDate() + offset);
	};

	exports.toDate = function (date) {
		return date instanceof Date ? date : new Date(Date.parse(date));
	};
	exports.formatDate = function (date, format) {
		/// <summary>格式化指定日期</summary>
		/// <param name="format" type="String">格式化字符串</param>
		date = exports.toDate(date);

		format = format || "yyyy-MM-dd";
		var o = {
			"M+": date.getMonth() + 1, //month
			"d+": date.getDate(), //day
			"h+": date.getHours(), //hour
			"m+": date.getMinutes(), //minute
			"s+": date.getSeconds(), //second
			"q+": Math.floor((date.getMonth() + 3) / 3), //quarter
			"S": date.getMilliseconds() //millisecond
		};

		if (/(y+)/i.test(format)) {
			format = format.replace(RegExp.$1, (date.getFullYear() + "").substr(4 - RegExp.$1.length));
		}

		for (var k in o) {
			if (new RegExp("(" + k + ")").test(format)) {
				format = format.replace(RegExp.$1, RegExp.$1.length == 1 ? o[k] : ("00" + o[k]).substr(("" + o[k]).length));
			}
		}
		return format;
	};
	exports.formatSellDate = function (date) {
		date = exports.toDate(date);
		var today = exports.addDays(new Date(), 0);

		var offset = Math.floor((date - today) / 1000 / 60);
		var hour = Math.floor(offset / 60);
		var minute = offset % 60;

		if (hour < 24) return "今天" + hour + "点" + (minute ? minute + "分" : "");
		else if (hour < 72) {
			return ["明天", '后天', '大后天'][Math.floor(hour / 24) - 1] + (hour % 24) + "点" + (minute ? minute + "分" : "");
		} else {
			return exports.formatDate(date, "MM月dd日 hh:mm");
		}
	};
	exports.getDaysDifference = function (date1, date2) {
		/// <summary>获得date1到date2之间隔了多少天</summary>

		var time1 = Math.floor(exports.toDate(date1).getTime() / 1000 / 60 / 60 / 24);
		var time2 = Math.floor(exports.toDate(date2).getTime() / 1000 / 60 / 60 / 24);

		return time2 - time1;
	}
	exports.format24hTo12h = function (str) {
		/// <summary>将24小时制式时间转换为12小时制式</summary>
		if (!str)
			return '';

		var args = str.split('/');
		return args.map(function (t) {
			if (!/0?(\d{1,2}):(\d{1,2})/.exec(t))
				return "";

			var h = parseInt(RegExp.$1, 10);
			return h < 13 ? "上午" + h + ":" + RegExp.$2 : "下午" + (h - 12) + ":" + RegExp.$2;

		});
	};
	exports.selectTrain = function (trainList, trainFilter, seatOrder, seatFirst, count) {
		var seat, train;
		if (seatFirst) {
			//席别优先
			seat = _.find(seatOrder, function (s) {
				var treg = _.find(trainFilter, function (t) {
					train = _.find(trainList, function (item) {
						return t.test(item.code) && (_.findWhere(item.tickets, { code: s }) || {}).count >= count;
					});
					return typeof (train) != 'undefined';
				});
				return typeof (treg) != 'undefined';
			});
		} else {
			//车次优先
			_.find(trainFilter, function (t) {
				seat = _.find(seatOrder, function (s) {
					train = _.find(trainList, function (item) {
						return t.test(item.code) && (_.findWhere(item.tickets, { code: s }) || {}).count >= count;
					});
					return typeof (train) != 'undefined';
				});
				return typeof (seat) != 'undefined';
			});
		}

		if (seat)
			return { seat: seat, train: train };
		return null;
	}

	$.fn.toBase64Data = function () {
		var arr = [];
		this.each(function () {
			if (!this.naturalHeight)
				return;

			var canvas = document.createElement("canvas");
			var height = this.naturalHeight;
			var width = this.naturalWidth;
			canvas.width = width;
			canvas.height = height;
			var ctx = canvas.getContext("2d");
			ctx.drawImage(this, 0, 0, width, height);

			var url = canvas.toDataURL();
			delete canvas;

			arr.push({
				type: "image",
				data: url
			});
		});

		return arr;
	};
});