var EXPO = EXPO || {}; //isolated namespace
EXPO.profile = EXPO.profile || {};
if (EXPO.profile.calendar) {
	console.warn('WARNING: EXPO.profile.calendar is already defined!');
} else {

	EXPO.profile.calendar = (function () {
// dependencies
		var com = EXPO.common;

// variables
		var that = {};

		that.opt = {}; //свойства по умолчанию
//private
		$(function () {
		});

// methods
		//инициализация общих свойств
		that.init = function (options) {
			$.extend(this.opt, options);

			/**
			 *  scrolling calendar object
			 *  depend on mCustomScroll Jquery plugin
			 * @type {*|jQuery|HTMLElement}
			 */
			var self = this,
				$scrollBox = $('#' + this.opt.scrollBoxId),
				$calendar = $('#' + this.opt.calenadrId),
				currentDayOffset = $calendar.find('td.' + this.opt.currentDayClass).index() * this.opt.cellWidth,
				$leftScroll = $('#' + this.opt.scrollLeftId),
				$rightScroll = $('#' + this.opt.scrollRightId),
				$noEventsField = $('.' + this.opt.noEventsClass),
				$calendarToggle = $('.' + this.opt.calendarToggleClass),
				scrollStep = this.opt.cellWidth * this.opt.cellsToScroll,
				index = 0,
				/**
				 *offset to curent week ( week in which today is)
				 * @returns {number} - offset in pixels
				 */
				//
				currentWeekOffset = function () {
					var offset = 0,
						result = 0,
						width = self.opt.cellWidth,
						$calendar = $('#' + self.opt.calenadrId),
						currentDay = $calendar.find('td.' + self.opt.currentDayClass).index(),
						onestep = self.opt.cellsToScroll,
						allDays = $calendar.find('.'+self.opt.daysClass+' td').length,
						stepsCount,
						currenCount;
					self.stepWidth = onestep*width;
					self.calendarWidth =  width* allDays;
					if(currentDay > 0){
						currentDay++;
						stepsCount = allDays / onestep;
						currenCount = allDays / currentDay;

						result = stepsCount - currenCount;


						self.currentDay =currentDay;
						if (result) {
							result = Math.floor(result-1);
							offset = onestep * result * width;
						} else {

							offset = 0;
						}
					}else{
						self.currentDay = 0;
						offset = 0;
					}


					return offset;

				};
			this.currentOffset = currentWeekOffset();
			//$(document).ready(function () {
			//
			//});
			this.$messages = []

			$(function () {
				$noEventsField.each(function () {
					if (!$(this).attr('colspan') || $(this).attr('colspan') == 1) {
						$(this).find('.' + self.opt.eventWrapClass).addClass('small');
					}else if($(this).width() > self.stepWidth){
						self.$messages.push(
							$('.message',$(this))
								.width(self.stepWidth)
								.css({marginLeft:self.currentOffset+'px'})
						);
					}
				});
				$('.' + self.opt.eventsClass).each(function () {
					index++;
					if (index == 3) {
						$(this).addClass('grey');
					}
					if (index == 4) {
						$(this).addClass('grey');
						index = 0;
					}
				});
			});

			$(window).load(function () {
				$scrollBox.mCustomScrollbar({
					axis: 'y',
					horizontalScroll: true,
					setLeft:'-'+EXPO.profile.calendar.currentOffset+'px',
					mouseWheel:{enable:false},
					scrollButtons:{enable:false},
					contentTouchScroll:false,
					scrollInertia:1000,
					timeout:0,
					advanced: { // Advanced options
						autoScrollOnFocus: false,
						updateOnContentResize: false, // Scrollbar will be updated on content resize
						updateOnBrowserResize: false  // Scrollbar will be updated on browser resize
					},
					keyboard:{
						enable:false
					}
				});
				//$('.mCSB_scrollTools_horizontal',$scrollBox).hide();
				//$('.mCSB_scrollTools_horizontal',$scrollBox).css({'opacity':0});
				//$scrollBox.mCustomScrollbar("scrollTo", currentWeekOffset());
			});
			$leftScroll.on('click', function () {
				if(self.currentOffset >= self.stepWidth){
					self.currentOffset -= scrollStep;
					$scrollBox.mCustomScrollbar("scrollTo", '+=' + scrollStep);
					for (var i =0; i< self.$messages.length; i++){
						var marginLeft = parseInt(self.$messages[i].inlineStyle("margin-left"));
						if(marginLeft> 0){
							self.$messages[i].css({marginLeft:self.currentOffset+'px'});
						}
					}
				}
			});
			$rightScroll.on('click', function () {
				if((self.currentOffset + self.stepWidth) < self.calendarWidth){

					self.currentOffset+= scrollStep;

					$scrollBox.mCustomScrollbar("scrollTo", '-=' + scrollStep);
					for (var i =0; i< self.$messages.length; i++){
						var marginLeft = parseInt(self.$messages[i].inlineStyle("margin-left"));
						if((marginLeft +self.$messages[i].width())< self.calendarWidth){
							self.$messages[i].css({marginLeft:self.currentOffset+'px'});
						}
					}
				}
			});
			$calendarToggle.on('click', function () {
				var $switch = $(this);
				var $sect = $switch.closest('.ep-sect');
				var $sectBody = $sect.children('div.ep-sect-body');

				if ($sect.hasClass('eps-opened')) {
					$rightScroll.hide();
					$leftScroll.hide();
					$sectBody
						.stop()
						.animate({
							opacity: 0
						}, 300, function () {
							$sect.removeClass('eps-opened');
						});
				} else {
					$rightScroll.show();
					$leftScroll.show();
					$sectBody
						.stop()
						.animate({
							opacity: 1
						}, 300, function () {
							$sect.addClass('eps-opened');
						});
				}

				return false;
			});

		};
		return that;
	}());
}