var MiniCalendar = function () {
	var self = this;
	var $calendar = null;
	var $nextButton = null;
	var $prevButton = null;
	var widgetId = null;
	var contentContainerID = null;
	var currentMonth = null;
	var todayMonth = null;
	var preventNavigationOnArrows;
	var urlChangeMonth = '/Calendar/WidgetGet/ChangeMiniCalendarMonth';
	var urlUpdateList = '/Calendar/WidgetGet/UpdateList';

	function moveMonth(monthDate) {
		var miniCalendarResult;
		var eventListResult;
		var async1 = $.ajax({
			type: 'POST',
			url: urlChangeMonth,
			data: JSON.stringify({
				"month": monthDate.getMonth() + 1,
				"year": monthDate.getFullYear(),
				"pageID": $('#pagePageID').val(),
				"widgetID": widgetId,
				"contentContainerID": contentContainerID,
				"moduleID": $('#pageModuleID').val()
			}),
			contentType: 'application/json',
			cache: false,
			async: true,
			success: function (response) {
				miniCalendarResult = response;
			},
			error: function (xhr, textStatus, exception) {
				alert('Error: ' + xhr.statusText + '\nStatus: ' + xhr.status);
			}
		});
		var async2 = $.ajax({
			type: 'POST',
			url: urlUpdateList,
			data: JSON.stringify({
				"month": monthDate.getMonth() + 1,
				"year": monthDate.getFullYear(),
				"pageID": $('#pagePageID').val(),
				"widgetID": widgetId,
				"contentContainerID": contentContainerID,
				"moduleID": $('#pageModuleID').val()
			}),
			contentType: 'application/json',
			cache: false,
			async: true,
			success: function (response) {
				eventListResult = response;
			},
			error: function (xhr, textStatus, exception) {
				alert('Error: ' + xhr.statusText + '\nStatus: ' + xhr.status);
			}
		});
		$.when(async1, async2).done(function () {
			currentMonth = monthDate;
			$calendar.find('div[data-minicalendar]').replaceWith(miniCalendarResult);
			initButtons();
			$calendar.find('div.row').html(eventListResult);
		});
	};

	function initButtons() {
		$nextButton = $calendar.find("button.cp-miniCalendar-arrow--right");
		$nextButton.click(function (e) {
			if (preventNavigationOnArrows) {
				e.preventDefault();
			} else {
				self.moveNextMonth();
			}
		});
		$prevButton = $calendar.find("button.cp-miniCalendar-arrow--left");
		if (isCurrentMonthTodayMonth()) {
			$prevButton.attr("disabled", true);
		} else {
			$prevButton.click(function () {
				if (preventNavigationOnArrows) {
					e.preventDefault();
				} else {
					self.movePrevMonth();
				}
			});
		}
	}

	function isCurrentMonthTodayMonth() {
		return (todayMonth.getMonth() === currentMonth.getMonth() && todayMonth.getFullYear() === currentMonth.getFullYear());
	}

	this.moveNextMonth = function () {
		var nextMonth = new Date(currentMonth.getFullYear(), currentMonth.getMonth() + 1, 1);
		moveMonth(nextMonth);
	};

	this.movePrevMonth = function () {
		if (!isCurrentMonthTodayMonth()) {
			var prevMonth = new Date(currentMonth.getFullYear(), currentMonth.getMonth() - 1, 1);
			moveMonth(prevMonth);
		}
	};

	this.init = function (options) {
		widgetId = options.widgetId;
		preventNavigationOnArrows = options.preventNavigationOnArrows;
		$calendar = $("#widgetCalendar" + widgetId);
		var $pageContent = $calendar.parents('.pageContent').filter(":first");
		contentContainerID = $pageContent.data('containerid');
		var $monthToRender = $calendar.find('input[name="monthToRender"]');
		var month = parseInt($monthToRender.data("month"), 10);
		var year = parseInt($monthToRender.data("year"), 10);
		currentMonth = new Date(year, month - 1, 1);
		var now = new Date();
		todayMonth = new Date(now.getFullYear(), now.getMonth(), 1);
		initButtons();
	};

};