/*!
* Datepickk
* Docs & License: https://crsten.github.com/datepickk
* (c) 2017 Carsten Jacobsen
*/

import '../css/datepickk.less';

function Datepickk(args){
	Datepickk.numInstances = (Datepickk.numInstances || 0) + 1;
	var that = this;
	var eventName = 'click';
	var selectedDates = [];

	var currentYear = new Date().getFullYear();
	var currentMonth = new Date().getMonth() + 1;

	var languages = {
		no: {
			monthNames:['Januar','Februar','Mars','April','Mai','Juni','Juli','August','September','Oktober','November','Desember'],
			dayNames:['sø','ma','ti','on','to','fr','lø'],
			weekStart:1
		},
		se: {
			monthNames:['januari','februari','mars','april','maj','juni','juli','augusti','september','oktober','november','december'],
			dayNames:['sö','må','ti','on','to','fr','lö'],
			weekStart:1
		},
		ru: {
			monthNames:['Январь','Февраль','Март','Апрель','Май','Июнь','Июль','Август','Сентябрь','Октябрь','Ноябрь','Декабрь'],
			dayNames:['вс','пн','вт','ср','чт','пт','сб'],
			weekStart:1
		},
		en: {
			monthNames:['january','february','march','april','may','june','july','august','september','october','november','december'],
			dayNames:['su','mo','tu','we','th','fr','sa'],
			weekStart:0
		},
		de: {
			monthNames:['Januar','Februar','März','April','Mai','Juni','Juli','August','September','Oktober','November','Dezember'],
			dayNames:['So','Mo','Di','Mi','Do','Fr','Sa'],
			weekStart:1
		}
	};

	/*Language aliases*/
	languages.nb = languages.no;
	languages.nn = languages.no;

	var range = false;
	var maxSelections = null;
	var container = document.body;
	var opened = false;
	var months = 1;
	var closeOnSelect = false;
	var button = null;
	var title = null;
	var onNavigation = null;
	var onClose = null;
	var onConfirm = null;
	var closeOnClick = true;
	var inline = false;
	var lang = 'en';
	var onSelect = null;
	var disabledDates = [];
	var disabledDays = [];
	var highlight = [];
	var tooltips = {};
	var daynames = true;
	var today = true;
	var startDate = null;
	var minDate = null;
	var maxDate = null;
	var weekStart = null;
	var locked = false;

	function generateDaynames(){
		that.el.days.innerHTML = '';
		var ws = (weekStart !== null) ? weekStart : languages[lang].weekStart;
		if(daynames){
			for(var x = 0;x<months && x<3;x++){
				var weekEl = document.createElement('div');
					weekEl.setAttribute('class','d-week');
				for(var i = 0; i < 7;i++){
					var dayNameIndex = (i + ws > languages[lang].dayNames.length - 1) ? i + ws - languages[lang].dayNames.length : i + ws;

					var dayEl = document.createElement('div');
					var	dayTextEl = document.createElement('p');
						dayTextEl.innerHTML = languages[lang].dayNames[dayNameIndex];

						dayEl.appendChild(dayTextEl);
						weekEl.appendChild(dayEl);
				}

				that.el.days.appendChild(weekEl);
			}
		}
	}

	function generateYears(){
		[].slice.call(that.el.yearPicker.childNodes).forEach(function(node,index) {
			node.innerHTML = "'" + (currentYear + parseInt(node.getAttribute('data-year'))).toString().substring(2,4);
		})
	}

	function generateInputs(){
		that.el.tables.innerHTML = '';
		for(var x = 0;x<months;x++){
			var container = document.createElement('div');
				container.setAttribute('class','d-table');
			for(var i = 0;i<42;i++){
				var input = document.createElement('input');
					input.type = 'checkbox';
					input.id   = Datepickk.numInstances + '-' + x + '-d-day-' + i;
				var label = document.createElement('label');
					label.setAttribute("for",Datepickk.numInstances + '-' + x + '-d-day-' + i);

				var text = document.createElement('text');

				var tooltip = document.createElement('span');
					tooltip.setAttribute('class','d-tooltip');


				container.appendChild(input);
				container.appendChild(label);

				label.appendChild(text);
				label.appendChild(tooltip);

				input.addEventListener(eventName,function(event){
					if(locked){
						event.preventDefault();
					}
				});
				input.addEventListener('change',inputChange);
			}

			that.el.tables.appendChild(container);
		}

		that.el.tables.addEventListener('mouseover',highlightLegend);
		that.el.tables.addEventListener('mouseout',highlightLegend);

		function highlightLegend(e){
			if(e.target.nodeName !== 'LABEL') return;

			var legendIds = (e.target.getAttribute('data-legend-id'))?e.target.getAttribute('data-legend-id').split(' '):[];
			if(!legendIds.length) return;

			legendIds.forEach(function(legendId) {
				var element = that.el.legend.querySelector('[data-legend-id="' + legendId + '"]');
				if(e.type == 'mouseover' && element){
					var color = (element.getAttribute('data-color'))?hexToRgb(element.getAttribute('data-color')):null;
					element.setAttribute('style','background-color:rgba(' + color.r + ',' + color.g + ',' + color.b + ',0.35);');
				}else if(element){
					element.removeAttribute('style');
				}
			});

			function hexToRgb(hex) {
			    var result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex);
			    return result ? {
			        r: parseInt(result[1], 16),
			        g: parseInt(result[2], 16),
			        b: parseInt(result[3], 16)
			    } : null;
			}
		}
	}

	function generateLegends(){
		var start = new Date(that.el.tables.childNodes[0].childNodes[0].getAttribute('data-date'));
		var end = new Date(that.el.tables.childNodes[months-1].childNodes[82].getAttribute('data-date'));
		var _highlights = highlight.filter(function(x){
			for(var m = 0;m < x.dates.length;m++){
				if(x.dates[m].start < end && x.dates[m].end > start){
					return true;
				}
			}
			return false;
		});
		var legends = [];
		for(var l = 0;l<_highlights.length;l++){
			if('legend' in _highlights[l] && _highlights[l].legend){
				var oldLegend = container.querySelector('.d-legend-item[data-legend="' + _highlights[l].legend + '"][data-color="' + _highlights[l].backgroundColor + '"]');
				if(oldLegend == null){
					var legendItem = document.createElement('p');
						legendItem.setAttribute('class','d-legend-item');
						legendItem.setAttribute('data-legend',_highlights[l].legend);
						legendItem.setAttribute('data-legend-id',highlight.indexOf(_highlights[l]));
						legendItem.setAttribute('data-color',_highlights[l].backgroundColor);
					var legendItemPoint = document.createElement('span');
						legendItemPoint.setAttribute('style','background-color:' + _highlights[l].backgroundColor);

					legendItem.appendChild(legendItemPoint);

					that.el.legend.appendChild(legendItem);
					legendItem.addEventListener('mouseover',hoverLegend);
					legendItem.addEventListener('mouseout',hoverLegend);
					legends.push(legendItem);
				}else{
					legends.push(oldLegend);
				}
			}
		}

		[].slice.call(that.el.legend.querySelectorAll('.d-legend-item')).forEach(function(item) {
			if(legends.indexOf(item) < 0){
				item.removeEventListener('mouseover',hoverLegend);
				item.removeEventListener('mouseout',hoverLegend);
				that.el.legend.removeChild(item);
			}
		});

		function hoverLegend(e){
			[].slice.call(that.el.tables.querySelectorAll('[data-legend-id*="' + this.getAttribute('data-legend-id') + '"]')).forEach(function(element) {
				if(e.type == 'mouseover') element.classList.add('legend-hover');
				else element.classList.remove('legend-hover');
			});
		}
	}

	function parseMonth(month){
		if(month > 11) month -= 12;
		else if(month < 0) month += 12;
		return month;
	}

	function generateDates(year,month){
		var monthElements = that.el.querySelectorAll('.d-table');
		var ws = (weekStart !== null) ? weekStart : languages[lang].weekStart;

		[].slice.call(that.el.querySelectorAll('.d-table')).forEach(function(element, index) {
			var days = new Date(year,month + index,0).getDate();
			var daysLast = new Date(year,month + index - 1,0).getDate();
			var startDay = new Date(year,month + index - 1,1).getDay();
			var startDate = null;
			var endDate = null;
			if(startDay - ws < 0){
				startDay = 7 - ws;
			}else{
				startDay -= ws;
			}
			var monthText = languages[lang].monthNames[parseMonth(month - 1 + index)];
			element.setAttribute('data-month',monthText);

			[].slice.call(element.querySelectorAll('.d-table input')).forEach(function(inputEl,i) {
				var labelEl = inputEl.nextSibling;

				inputEl.checked = false;
				inputEl.removeAttribute('disabled');
				labelEl.removeAttribute('style');
				labelEl.removeAttribute('data-legend-id');
				labelEl.className = '';

				var date = null;
				if(i < startDay){
					labelEl.childNodes[0].innerHTML = daysLast - (startDay - i - 1);
					if(index == 0){
						date = new Date(year,month + index - 2,daysLast - (startDay - i - 1));
						labelEl.className = 'prev';
					}else{
						date = '';
						labelEl.className = 'd-hidden';
						inputEl.setAttribute('disabled',true);
					}
				}else if(i < days + startDay){
					date = new Date(year,month + index - 1,i - startDay+1);
					labelEl.childNodes[0].innerHTML = i - startDay + 1;
					labelEl.className = '';
				}else{
					labelEl.childNodes[0].innerHTML = i - days - startDay + 1;
					if(index == monthElements.length-1){
						date = new Date(year,month + index,i - days - startDay + 1);
						labelEl.className = 'next';
					}else{
						date = '';
						labelEl.className = 'd-hidden';
						inputEl.setAttribute('disabled',true);
					}
				}

				if(date instanceof Date){
					inputEl.setAttribute('data-date',date.toJSON());

					if(disabledDates.indexOf(date.getTime()) != -1 || disabledDays.indexOf(date.getDay()) != -1){
						inputEl.setAttribute('disabled',true);
					}

					if((minDate && date < minDate) || (maxDate && date > maxDate)){
						inputEl.setAttribute('disabled',true);
						labelEl.className = 'd-hidden';

					}

					if(today && date.getTime() == new Date().setHours(0,0,0,0)){
						labelEl.classList.add('today');
					}else{
						labelEl.classList.remove('today');
					}


					if(tooltips[date.getTime()]){
						labelEl.childNodes[0].setAttribute('data-tooltip',true);
						labelEl.childNodes[1].innerHTML = tooltips[date.getTime()];
					}else{
						labelEl.childNodes[0].removeAttribute('data-tooltip');
						labelEl.childNodes[1].innerHTML = '';
					}

					var _highlights = highlight.filter(function(x){
						for(var m = 0;m < x.dates.length;m++){
							if(date.getTime() >= x.dates[m].start.getTime() && date.getTime() <= x.dates[m].end.getTime()){
								return true;
							}
						}
						return false;
					});

					if(_highlights.length > 0){
						var bgColor = '';
						var legendIds = '';

						if(_highlights.length > 1){
							var percent = Math.round(100 / _highlights.length);
							bgColor = 'background: linear-gradient(-45deg,';
							for(var z = 0;z < _highlights.length;z++){
								legendIds += highlight.indexOf(_highlights[z]);
								if(z !== _highlights.length -1){legendIds += ' ';}
								bgColor += _highlights[z].backgroundColor + ' ' + (percent*z) + '%';
								if(z != _highlights.length - 1){
									bgColor += ',';
									bgColor += _highlights[z].backgroundColor + ' ' + (percent*(z+1)) + '%,';
								}
							}
							bgColor += ');';
						}else{
							bgColor = (_highlights[0].backgroundColor)?'background:'+ _highlights[0].backgroundColor + ';':'';
							legendIds += highlight.indexOf(_highlights[0]);
						}
						var Color = (_highlights[0].color)?'color:'+ _highlights[0].color + ';':'';
						labelEl.setAttribute('style',bgColor + Color);
						labelEl.setAttribute('data-legend-id',legendIds);
					}
				}
			});
		});

		generateLegends();
	};

	function setDate(){
		if(!that.el.tables.childNodes.length || !that.el.tables.childNodes[0].childNodes.length) return;

		resetCalendar();

		if(currentMonth > 12 || currentMonth < 1){
			if(currentMonth > 12){
				currentYear += 1;
				currentMonth -= 12;
			}else{
				currentYear -= 1;
				currentMonth += 12;
			}
		}

		if(maxDate && new Date(currentYear,currentMonth-1+months-1,1) >= new Date(maxDate).setDate(1)){
			currentYear = maxDate.getFullYear();
			currentMonth = maxDate.getMonth() + 1 - months + 1;
			that.el.header.childNodes[2].setAttribute('style','visibility:hidden');
		}else{
			that.el.header.childNodes[2].removeAttribute('style');
		}
		if(minDate && new Date(currentYear,currentMonth -1,1) <= new Date(minDate).setDate(1)){
			currentYear = minDate.getFullYear();
			currentMonth = minDate.getMonth() + 1;
			that.el.header.childNodes[0].setAttribute('style','visibility:hidden');
		}else{
			that.el.header.childNodes[0].removeAttribute('style');
		}

		for(var c = 0;c < months;c++){
			var index = currentMonth-1+c;
			if(index > 11){
				index -= 12;
			}else if(index < 0){
				index += 12;
			}

			that.el.monthPicker.childNodes[index].classList.add('current');
		}

		generateDates(currentYear,currentMonth);
		generateYears();
		var startmonth = languages[lang].monthNames[currentMonth-1];
		var endmonth = '';
		if(months > 1){
			endmonth += ' - ';
			var monthint = currentMonth-1+months-1;
			if(monthint > 11){
				monthint -= 12;
			}else if(monthint < 0){
				monthint += 12;
			}
			endmonth += languages[lang].monthNames[monthint];
		}
		var yearname = (currentMonth-1+months-1 > 11)?currentYear.toString().substring(2,4) + '/' + (currentYear + 1).toString().substring(2,4):currentYear.toString().substring(2,4);
		that.el.header.childNodes[1].childNodes[0].innerHTML = startmonth + endmonth;
		that.el.header.childNodes[1].childNodes[1].innerHTML = yearname;

		that.el.yearPicker.querySelector('[data-year="0"]').classList.add('current');
		if(currentMonth-1+months-1>11){
			that.el.yearPicker.querySelector('[data-year="1"]').classList.add('current');
		}

		renderSelectedDates();
		if(onNavigation) onNavigation.call(that);
	};

	function renderSelectedDates(){
		selectedDates.forEach(function(date) {
			var el = that.el.querySelector('[data-date="' + date.toJSON() + '"]');
			if(el){
				el.checked = true;
			}
		});

		that.el.tables.classList.remove('before');
		if(range && selectedDates.length > 1){
			var currentDate = new Date(currentYear,currentMonth-1,1);
			var sorted = selectedDates.sort(function(a,b){return a.getTime()-b.getTime()});
			var first = that.el.querySelector('[data-date="'+ sorted[0].toJSON() +'"]');
			if(!first && currentDate >= new Date(sorted[0].getFullYear(),sorted[0].getMonth(),1) && currentDate <= new Date(sorted[1].getFullYear(),sorted[1].getMonth(),1)){
				that.el.tables.classList.add('before');
			}
		}
	};

	function resetCalendar(){
		[].slice.call(that.el.querySelectorAll('.d-table input')).forEach(function(inputEl) {
			inputEl.checked = false;
		});

		[].slice.call(that.el.monthPicker.querySelectorAll('.current')).forEach(function(monthPickEl) {
			monthPickEl.classList.remove('current');
		});

		[].slice.call(that.el.yearPicker.querySelectorAll('.current')).forEach(function(yearPickEl) {
			yearPickEl.classList.remove('current');
		});
	};

	function nextMonth(){
		currentMonth += months;
		setDate();
	};

	function prevMonth(){
		currentMonth -= months;
		setDate();
	};

	function selectDate(date,ignoreOnSelect){
		date = new Date(date);
		date.setHours(0,0,0,0);
		var el = that.el.querySelector('[data-date="'+ date.toJSON() +'"]');

		if(range && el && el.checked) {
			el.classList.add('single');
		}

		if(el && !el.checked){
			el.checked = true;
		}


		selectedDates.push(date);

		if(onSelect && !ignoreOnSelect){
			onSelect.apply(date,[true]);
		}
	};

	function unselectDate(date,ignoreOnSelect){
		date = new Date(date);
		date.setHours(0,0,0,0);
		var el = that.el.querySelector('[data-date="'+ date.toJSON() +'"]');
		if(el){
			el.classList.remove('single');
			if(el.checked){el.checked = false;}
		}

		selectedDates = selectedDates.filter(function(x){return x.getTime() != date.getTime()});

		if(onSelect && !ignoreOnSelect){
			onSelect.call(date,false);
		}
	};

	function unselectAll(ignoreOnSelect){
		selectedDates.forEach(function(date) {
			unselectDate(date,ignoreOnSelect);
		});
	};

	function inputChange(e){
		var input = this;
		var date = new Date(input.getAttribute('data-date'));
		input.classList.remove('single');
		if(locked){return;}
		if(range){
			that.el.tables.classList.remove('before');
		}
		if(input.checked){
			if(maxSelections && selectedDates.length > maxSelections-1){
				var length = selectedDates.length;
				for(length; length > maxSelections-1; length --){
					unselectDate(selectedDates[0]);
				}

			}

			if(range && selectedDates.length){
				var first = that.el.querySelector('[data-date="'+ selectedDates[0].toJSON() +'"]');
				if(!first && date > selectedDates[0]){
					that.el.tables.classList.add('before');
				}
			}

			selectedDates.push(date);

			if(closeOnSelect){
				that.hide();
			}
		}else{
			if(range && selectedDates.length == 1 && selectedDates[0].getTime() == date.getTime()){
				selectDate(date);
				input.classList.add('single');
			}else{
				selectedDates = selectedDates.filter(function(x){return x.getTime() != date.getTime()})
			}
		}

		if(onSelect){
			onSelect.call(date,input.checked);
		}
	};

	function setRange(val){
		if(val){
			range = true;
			that.el.tables.classList.add('range');
		}else{
			range = false;
			that.el.tables.classList.remove('range');
		}
	};

	function show(properties){
		if(!that.inline && that.container === document.body){document.body.classList.add('d-noscroll');}
		setArgs(properties);
		var handler = function(){
			that.el.classList.remove('d-show');
			that.el.calendar.removeEventListener(whichAnimationEvent(),handler);
		};
		that.el.calendar.addEventListener(whichAnimationEvent(),handler);
		that.el.classList.add('d-show');
		container.appendChild(that.el);
		opened = true;
		if(startDate){
			currentMonth = startDate.getMonth() + 1;
			currentYear = startDate.getFullYear();
		}
		setDate();
	};

	function hide(){
		document.body.classList.remove('d-noscroll');
		var handler = function(){
			that.el.parentNode.removeChild(that.el);
			opened = false;
			that.el.classList.remove('d-hide');
			if(typeof onClose == 'function'){
				onClose.apply(that);
			}
			that.el.removeEventListener(whichAnimationEvent(),handler);
		}
		that.el.addEventListener(whichAnimationEvent(),handler);
		that.el.classList.add('d-hide');
	};

	function bindEvents(){
		that.el.header.childNodes[0].addEventListener(eventName,prevMonth);
		that.el.header.childNodes[2].addEventListener(eventName,nextMonth);
		that.el.header.childNodes[1].childNodes[0].addEventListener(eventName,function(){
			if(that.el.monthPicker.classList.contains('d-show')){
				that.el.monthPicker.classList.remove('d-show');
			}else{
				that.el.monthPicker.classList.add('d-show');
			}
			that.el.yearPicker.classList.remove('d-show');
		});
		that.el.header.childNodes[1].childNodes[1].addEventListener(eventName,function(){
			generateYears();
			if(that.el.yearPicker.classList.contains('d-show')){
				that.el.yearPicker.classList.remove('d-show');
			}else{
				that.el.yearPicker.classList.add('d-show');
			}
			that.el.monthPicker.classList.remove('d-show');
		});
		that.el.button.addEventListener(eventName,hide);

		that.el.overlay.addEventListener(eventName,function(){
			if(closeOnClick){
				that.hide();
			}
		});

		[].slice.call(that.el.monthPicker.childNodes).forEach(function(monthPicker) {
			monthPicker.addEventListener(eventName,function(){
				currentMonth = parseInt(this.getAttribute('data-month'));
				setDate();
				that.el.monthPicker.classList.remove('d-show');
			});
		});

		[].slice.call(that.el.yearPicker.childNodes).forEach(function(yearPicker) {
			yearPicker.addEventListener(eventName,function(){
				currentYear += parseInt(this.getAttribute('data-year'));
				setDate();
				that.el.yearPicker.classList.remove('d-show');
			});
		})

		var startX = 0;
		var distance = 0;
		that.el.calendar.addEventListener('touchstart',function(e){
			startX = e.changedTouches[0].clientX || e.originalEvent.changedTouches[0].clientX;
			//e.preventDefault();
		});

		that.el.calendar.addEventListener('touchmove',function(e){
			distance = e.changedTouches[0].clientX - startX || e.originalEvent.changedTouches[0].clientX - startX;
			e.preventDefault();
		});

		that.el.calendar.addEventListener('touchend',function(e){
			if(distance > 50){
				prevMonth();
			}else if(distance < -50){
				nextMonth();
			}
			distance = 0;
		});
	};

	function setArgs(x){
		for(var key in x){
			if(key in that){
				that[key] = x[key];
			}
		};
	};

	function init(){
		that.el = document.createElement('div');
		that.el.id = 'Datepickk';
		that.el.classList.add(getBrowserVersion().type);
		that.el.innerHTML = template;
		that.el.calendar = that.el.childNodes[1];
		that.el.titleBox = that.el.childNodes[0];
		that.el.button = that.el.childNodes[3];
		that.el.header = that.el.calendar.childNodes[0];
		that.el.monthPicker = that.el.calendar.childNodes[1];
		that.el.yearPicker = that.el.calendar.childNodes[2];
		that.el.tables = that.el.calendar.childNodes[4];
		that.el.days = that.el.calendar.childNodes[3];
		that.el.overlay = that.el.childNodes[4];
		that.el.legend = that.el.childNodes[2];

		setArgs(args);

		generateInputs();
		generateDaynames();
		bindEvents();

		if(inline){
			show();
		}
	}

	that.show = show;
	that.hide = hide;
	that.selectDate = selectDate;
	that.unselectAll = unselectAll;
	that.unselectDate = unselectDate;

	function currentDateGetter(){
		return new Date(currentYear,currentMonth-1,1);
	}
	function currentDateSetter(x){
		x = new Date(x);
		currentMonth = x.getMonth() + 1;
		currentYear = x.getFullYear();
		setDate();
	}

	Object.defineProperties(that,{
		"selectedDates": {
			get: function () {
				return selectedDates.sort(function(a,b){return a.getTime() - b.getTime();});
			}
		},
		"range": {
			get: function() {
				return range;
			},
			set: function(x) {
				setRange(x);
				if(x){maxSelections = 2;}
			}
		},
		"button": {
			get: function() {
				return button;
			},
			set: function(x){
				if(typeof x == 'string'){
					button = x;
				}else{
					button = null;
				}
				that.el.button.innerHTML = (button)?button:'';
			}
		},
		"title": {
			get: function(){
				return title;
			},
			set: function(x){
				if(typeof x == 'string'){
					title = x;
				}else{
					title = null;
				}
				that.el.titleBox.innerText = (title)?title:'';
			}
		},
		"lang": {
			get: function(){
				return lang;
			},
			set: function(x){
				if(x in languages){
					lang = x;
					generateDaynames();
					setDate();
				}else{
					console.error('Language not found');
				}
			}
		},
		"weekStart": {
			get: function(){
				return (weekStart !== null) ? weekStart : languages[lang].weekStart;
			},
			set: function(x){
				if(typeof x == 'number' && x > -1 && x < 7){
					weekStart = x;
					generateDaynames();
					setDate();
				}else{
					console.error('weekStart must be a number between 0 and 6');
				}
			}
		},
		"months": {
			get: function(){
				return months;
			},
			set: function(x){
				if(typeof x == 'number' && x > 0){
					months = x;
					generateDaynames();
					generateInputs();
					setDate();

					if(months == 1){
						that.el.classList.remove('multi');
					}else{
						that.el.classList.add('multi');
					}
				}else{
					console.error('months must be a number > 0');
				}
			}
		},
		"isOpen": {
			get: function(){
				return opened;
			}
		},
		"closeOnSelect": {
			get: function(){
				return closeOnSelect;
			},
			set: function(x){
				if(x){
					closeOnSelect = true;
				}else{
					closeOnSelect = false;
				}
			}
		},
		"disabledDays": {
			get: function(){
				return disabledDays;
			},
			set: function(x){
				if(x instanceof Array){
					for(var i = 0;i < x.length;i++){
						if(typeof x[i] == 'number'){
							disabledDays.push(x[i]);
						}
					}
				}else if(typeof x == 'number'){
					disabledDays = [x];
				}else if(!x){
					disabledDays = [];
				}
				setDate();
			}
		},
		"disabledDates": {
			get: function(){
				return disabledDates.map(function(x){return new Date(x);});
			},
			set: function(x){
				if(x instanceof Array){
					x.forEach(function(date) {
						if(date instanceof Date){
							disabledDates.push(new Date(date.getFullYear(),date.getMonth(),date.getDate()).getTime());
						}
					});
				}else if(x instanceof Date){
					disabledDates = [new Date(x.getFullYear(),x.getMonth(),x.getDate()).getTime()];
				}else if(!x){
					disabledDates = [];
				}
				setDate();
			}
		},
		"highlight": {
			get: function(){
				return highlight;
			},
			set: function(x){
				if(x instanceof Array){
					x.forEach(function(hl) {
						if(hl instanceof Object){
							var highlightObj = {};
								highlightObj.dates = [];

							if('start' in hl){
								highlightObj.dates.push({
									start: new Date(hl.start.getFullYear(),hl.start.getMonth(),hl.start.getDate()),
									end: ('end' in hl)?new Date(hl.end.getFullYear(),hl.end.getMonth(),hl.end.getDate()):new Date(hl.start.getFullYear(),hl.start.getMonth(),hl.start.getDate())
								});
							}else if('dates' in hl && hl.dates instanceof Array){
								hl.dates.forEach(function(hlDate) {
									highlightObj.dates.push({
										start: new Date(hlDate.start.getFullYear(),hlDate.start.getMonth(),hlDate.start.getDate()),
										end: ('end' in hlDate)?new Date(hlDate.end.getFullYear(),hlDate.end.getMonth(),hlDate.end.getDate()):new Date(hlDate.start.getFullYear(),hlDate.start.getMonth(),hlDate.start.getDate())
									});
								})
							}

							highlightObj.color 				= hl.color;
							highlightObj.backgroundColor 	= hl.backgroundColor;
							highlightObj.legend				= ('legend' in hl)?hl.legend:null;

							highlight.push(highlightObj);
						}
					});
				}else if(x instanceof Object){
					var highlightObj = {};
					highlightObj.dates = [];

					if('start' in x){
						highlightObj.dates.push({
							start: new Date(x.start.getFullYear(),x.start.getMonth(),x.start.getDate()),
							end: ('end' in x)?new Date(x.end.getFullYear(),x.end.getMonth(),x.end.getDate()):new Date(x.start.getFullYear(),x.start.getMonth(),x.start.getDate())
						});
					}else if('dates' in x && x.dates instanceof Array){
						x.dates.forEach(function(hlDate) {
							highlightObj.dates.push({
								start: new Date(hlDate.start.getFullYear(),hlDate.start.getMonth(),hlDate.start.getDate()),
								end: ('end' in hlDate)?new Date(hlDate.end.getFullYear(),hlDate.end.getMonth(),hlDate.end.getDate()):new Date(hlDate.start.getFullYear(),hlDate.start.getMonth(),hlDate.start.getDate())
							});
						});
					}

					highlightObj.color 				= x.color;
					highlightObj.backgroundColor 	= x.backgroundColor;
					highlightObj.legend				= ('legend' in x)?x.legend:null;

					highlight.push(highlightObj);
				}else if(!x){
					highlight = [];
				}

				setDate();
			}
		},
		"onClose": {
			set: function(callback){
				onClose = callback;
			}
		},
		"onSelect": {
			set: function(callback){
				onSelect = callback;
			}
		},
		"today": {
			get: function(){
				return today;
			},
			set: function(x){
				if(x){
					today = true;
				}else{
					today = false;
				}
			}
		},
		"daynames": {
			get: function(){
				return daynames;
			},
			set: function(x){
				if(x){
					daynames = true;
				}else{
					daynames = false;
				}
				generateDaynames();
			}
		},
		"fullscreen": {
			get: function(){
				return that.el.classList.contains('fullscreen');
			},
			set: function(x){
				if(x){
					that.el.classList.add('fullscreen');
				}else{
					that.el.classList.remove('fullscreen');
				}
			}
		},
		"locked": {
			get: function(){
				return locked;
			},
			set: function(x){
				if(x){
					locked = true;
					that.el.tables.classList.add('locked');
				}else{
					locked = false;
					that.el.tables.classList.remove('locked');
				}
			}
		},
		"maxSelections": {
			get: function(){
				return maxSelections;
			},
			set: function(x){
				if(typeof x == 'number' && !range){
					maxSelections = x;
				}else{
					if(range){
						maxSelections = 2;
					}else{
						maxSelections = null;
					}
				}
			}
		},
		"onConfirm": {
			set: function(callback){
				if(typeof callback == 'function'){
					onConfirm = callback.bind(that);
					that.el.button.addEventListener(eventName,onConfirm);
				}else if(!callback){
					that.el.button.removeEventListener(eventName,onConfirm);
					onConfirm = null;
				}
			}
		},
		"onNavigation": {
			set: function(callback){
				if(typeof callback == 'function'){
					onNavigation = callback.bind(that);
				}else if(!callback){
					onNavigation = null;
				}
			}
		},
		"closeOnClick": {
			get: function(){
				return closeOnClick;
			},
			set: function(x){
				if(x){
					closeOnClick = true;
				}else{
					closeOnClick = false;
				}
			}
		},
		"tooltips": {
			get: function(){
				var ret = [];
				for(key in tooltips){
					ret.push({
						date: new Date(parseInt(key)),
						text: tooltips[key]
					});
				}
				return ret;
			},
			set: function(x){
				if(x instanceof Array){
					x.forEach(function(item) {
						if(item.date && item.text && item.date instanceof Date){
							tooltips[new Date(item.date.getFullYear(),item.date.getMonth(),item.date.getDate()).getTime()] = item.text;
						}
					});
				}else if(x instanceof Object){
					if(x.date && x.text && x.date instanceof Date){
						tooltips[new Date(x.date.getFullYear(),x.date.getMonth(),x.date.getDate()).getTime()] = x.text;
					}
				}else if(!x){
					tooltips = [];
				}
				setDate();
			}
		},
		"currentDate": {
			get: currentDateGetter,
			set: currentDateSetter
		},
		"setDate": {
			set: currentDateSetter
		},
		"startDate": {
			get: function(){
				return startDate;
			},
			set: function(x){
				if(x){
					startDate = new Date(x);
				}else{
					startDate = null;
					currentYear = new Date().getFullYear();
					currentMonth = new Date().getMonth() + 1;
				}
				setDate();
			}
		},
		"minDate": {
			get: function(){
				return minDate;
			},
			set: function(x){
				minDate = (x) ? new Date(x) : null ;
				setDate();
			}
		},
		"maxDate": {
			get: function(){
				return maxDate;
			},
			set: function(x){
				maxDate = (x) ? new Date(x) : null ;
				setDate();
			}
		},
		"container": {
			get: function(){
				return container;
			},
			set: function(x){
				if(x instanceof String){
					var y = document.querySelector(x);
					if(y){
						container = y;
						if(container != document.body){
							that.el.classList.add('wrapped');
						}else{
							that.el.classList.remove('wrapped');
						}
					}else{
						console.error("Container doesn't exist");
					}
				}else if(x instanceof HTMLElement){
					container = x;
					if(container != document.body){
						that.el.classList.add('wrapped');
					}else{
						that.el.classList.remove('wrapped');
					}
				}else{
					console.error("Invalid type");
				}
			}
		},
		"inline": {
			get: function(){
				return inline;
			},
			set: function(x){
				if(x){
					inline = true;
					that.el.classList.add('inline');
				}else{
					inline = false;
					that.el.classList.remove('inline');
				}
			}
		},


	});

	init();
	setDate();

	return Object.freeze(that);
};

function whichAnimationEvent(){
    var t;
    var el = document.createElement('fakeelement');
    var transitions = {
      'animation':'animationend',
      'OAnimation':'oanimationend',
      'MozAnimation':'animationend',
      'WebkitAnimation':'webkitAnimationEnd',
      '':'MSAnimationEnd'
    };

    for(t in transitions){
        if( el.style[t] !== undefined ){
            return transitions[t];
        }
    }
}

var template = 	'<div class="d-title"></div>' +
				'<div class="d-calendar">' +
					'<div class="d-header">' +
						'<i id="d-previous"></i>' +
						'<p><span class="d-month"></span><span class="d-year"></span></p>' +
						'<i id="d-next"></i>' +
					'</div>' +
					'<div class="d-month-picker">' +
						'<div data-month="1">1</div>' +
						'<div data-month="2">2</div>' +
						'<div data-month="3">3</div>' +
						'<div data-month="4">4</div>' +
						'<div data-month="5">5</div>' +
						'<div data-month="6">6</div>' +
						'<div data-month="7">7</div>' +
						'<div data-month="8">8</div>' +
						'<div data-month="9">9</div>' +
						'<div data-month="10">10</div>' +
						'<div data-month="11">11</div>' +
						'<div data-month="12">12</div>' +
					'</div>' +
					'<div class="d-year-picker">' +
						'<div data-year="-5"></div>' +
						'<div data-year="-4"></div>' +
						'<div data-year="-3"></div>' +
						'<div data-year="-2"></div>' +
						'<div data-year="-1"></div>' +
						'<div data-year="0"></div>' +
						'<div data-year="1"></div>' +
						'<div data-year="2"></div>' +
						'<div data-year="3"></div>' +
						'<div data-year="4"></div>' +
						'<div data-year="5"></div>' +
					'</div>' +
					'<div class="d-weekdays"></div>' +
					'<div class="d-tables"></div>' +
				'</div>' +
				'<div class="d-legend"></div>' +
				'<button class="d-confirm"></button>' +
				'<div class="d-overlay"></div>';

var getBrowserVersion =  function(){
	var browser = {
		type: null,
		version: null
	}

	var ua= navigator.userAgent, tem, ios,
    M= ua.match(/(opera|chrome|safari|firefox|msie|trident(?=\/))\/?\s*(\d+)/i) || [];
    ios = ua.match(/(iphone|ipad)\s+OS\s+([\d+_]+\d+)/i) || [];
    if(/trident/i.test(M[1])){
        tem=  /\brv[ :]+(\d+)/g.exec(ua) || [];
        browser.type = 'MSIE';
        browser.version = parseInt(tem[1]);
        return browser;
    }
    if(M[1]=== 'Chrome'){
        tem= ua.match(/\bOPR\/(\d+)/)
        if(tem!= null) return 'Opera '+tem[1];
    }
    if(ios[1]){
    	return browser = {
    		type: 'iOS',
    		version: ios[2]
    	};
    }
    M= M[2]? [M[1], M[2]]: [navigator.appName, navigator.appVersion, '-?'];
    if((tem= ua.match(/version\/(\d+)/i))!= null) M.splice(1, 1, tem[1]);
    browser.type = M[0];
    browser.version = parseInt(M[1]);

    return browser;
}

export default Datepickk