//main page init
jQuery(function(){
	initInputs();
	initSlideShow();
})

// slideshow init
function initSlideShow() {
	jQuery('div.gallery-block').fadeGallery({
		slideElements:'.gallery ul>li',
		pagerLinks:'div.pager a',
		btnNext:'a.btn-next',
		btnPrev:'a.btn-prev',
		btnPlayPause:'a.play-pause',
		pausedClass:'paused',
		playClass:'playing',
		activeClass:'active',
		pauseOnHover:true,
		autoRotation:true,
		autoHeight:false,
		switchTime:5000,
		duration:600,
		event:'click'
	});
}


// slideshow plugin
jQuery.fn.fadeGallery = function(_options){
	var _options = jQuery.extend({
		slideElements:'div.slideset > div',
		pagerLinks:'div.pager a',
		btnNext:'a.next',
		btnPrev:'a.prev',
		btnPlayPause:'a.play-pause',
		btnPlay:'a.play',
		btnPause:'a.pause',
		pausedClass:'paused',
		disabledClass: 'disabled',
		playClass:'playing',
		activeClass:'active',
		loadingClass:'ajax-loading',
		loadedClass:'slide-loaded',
		dynamicImageLoad:false,
		dynamicImageLoadAttr:'alt',
		currentNum:false,
		allNum:false,
		startSlide:null,
		noCircle:false,
		pauseOnHover:true,
		autoRotation:false,
		autoHeight:false,
		onBeforeFade:false,
		onAfterFade:false,
		onChange:false,
		disableWhileAnimating:false,
		switchTime:3000,
		duration:650,
		event:'click'
	},_options);

	return this.each(function(){
		// gallery options
		if(this.slideshowInit) return; else this.slideshowInit;
		var _this = jQuery(this);
		var _slides = jQuery(_options.slideElements, _this);
		var _pagerLinks = jQuery(_options.pagerLinks, _this);
		var _btnPrev = jQuery(_options.btnPrev, _this);
		var _btnNext = jQuery(_options.btnNext, _this);
		var _btnPlayPause = jQuery(_options.btnPlayPause, _this);
		var _btnPause = jQuery(_options.btnPause, _this);
		var _btnPlay = jQuery(_options.btnPlay, _this);
		var _pauseOnHover = _options.pauseOnHover;
		var _dynamicImageLoad = _options.dynamicImageLoad;
		var _dynamicImageLoadAttr = _options.dynamicImageLoadAttr;
		var _autoRotation = _options.autoRotation;
		var _activeClass = _options.activeClass;
		var _loadingClass = _options.loadingClass;
		var _loadedClass = _options.loadedClass;
		var _disabledClass = _options.disabledClass;
		var _pausedClass = _options.pausedClass;
		var _playClass = _options.playClass;
		var _autoHeight = _options.autoHeight;
		var _duration = _options.duration;
		var _switchTime = _options.switchTime;
		var _controlEvent = _options.event;
		var _currentNum = (_options.currentNum ? jQuery(_options.currentNum, _this) : false);
		var _allNum = (_options.allNum ? jQuery(_options.allNum, _this) : false);
		var _startSlide = _options.startSlide;
		var _noCycle = _options.noCircle;
		var _onChange = _options.onChange;
		var _onBeforeFade = _options.onBeforeFade;
		var _onAfterFade = _options.onAfterFade;
		var _disableWhileAnimating = _options.disableWhileAnimating;

		// gallery init
		var _anim = false;
		var _hover = false;
		var _prevIndex = 0;
		var _currentIndex = 0;
		var _slideCount = _slides.length;
		var _timer;
		if(_slideCount < 2) return;

		_prevIndex = _slides.index(_slides.filter('.'+_activeClass));
		if(_prevIndex < 0) _prevIndex = _currentIndex = 0;
		else _currentIndex = _prevIndex;
		if(_startSlide != null) {
			if(_startSlide == 'random') _prevIndex = _currentIndex = Math.floor(Math.random()*_slideCount);
			else _prevIndex = _currentIndex = parseInt(_startSlide);
		}
		_slides.css({
			'opacity':0,
			'left': 0,
			'top': 0
		}).eq(_currentIndex).css('opacity',1).show();
		if(_autoRotation) _this.removeClass(_pausedClass).addClass(_playClass);
		else _this.removeClass(_playClass).addClass(_pausedClass);

		// gallery control
		if(_btnPrev.length) {
			_btnPrev.bind(_controlEvent,function(){
				prevSlide();
				return false;
			});
		}
		if(_btnNext.length) {
			_btnNext.bind(_controlEvent,function(){
				nextSlide();
				return false;
			});
		}
		if(_pagerLinks.length) {
			_pagerLinks.each(function(_ind){
				jQuery(this).bind(_controlEvent,function(){
					if(_currentIndex != _ind) {
						if(_disableWhileAnimating && _anim) return;
						_prevIndex = _currentIndex;
						_currentIndex = _ind;
						switchSlide();
					}
					return false;
				});
			});
		}

		// play pause section
		if(_btnPlayPause.length) {
			_btnPlayPause.bind(_controlEvent,function(){
				if(_this.hasClass(_pausedClass)) {
					_this.removeClass(_pausedClass).addClass(_playClass);
					_autoRotation = true;
					autoSlide();
				} else {
					_autoRotation = false;
					if(_timer) clearTimeout(_timer);
					_this.removeClass(_playClass).addClass(_pausedClass);
				}
				return false;
			});
		}
		if(_btnPlay.length) {
			_btnPlay.bind(_controlEvent,function(){
				_this.removeClass(_pausedClass).addClass(_playClass);
				_autoRotation = true;
				autoSlide();
				return false;
			});
		}
		if(_btnPause.length) {
			_btnPause.bind(_controlEvent,function(){
				_autoRotation = false;
				if(_timer) clearTimeout(_timer);
				_this.removeClass(_playClass).addClass(_pausedClass);
				return false;
			});
		}

		// dynamic image loading (swap from ATTRIBUTE)
		function loadSlide(slide) {
			if(!slide.hasClass(_loadingClass) && !slide.hasClass(_loadedClass)) {
				var images = slide.find(_dynamicImageLoad) // pass selector here
				var imagesCount = images.length;
				if(imagesCount) {
					slide.addClass(_loadingClass);
					images.each(function(){
						var img = this;
						img.onload = function(){
							img.loaded = true;
							img.onload = null;
							setTimeout(reCalc,_duration);
						}
						img.setAttribute('src', img.getAttribute(_dynamicImageLoadAttr));
						img.setAttribute(_dynamicImageLoadAttr,'');
					}).css({opacity:0});

					function reCalc() {
						var cnt = 0;
						images.each(function(){
							if(this.loaded) cnt++;
						});
						if(cnt == imagesCount) {
							slide.removeClass(_loadingClass);
							images.animate({opacity:1},{duration:_duration,complete:function(){
								if(jQuery.browser.msie && jQuery.browser.version < 9) jQuery(this).css({opacity:'auto'})
							}});
							slide.addClass(_loadedClass)
						}
					}
				}
			}
		}

		// gallery animation
		function prevSlide() {
			if(_disableWhileAnimating && _anim) return;
			_prevIndex = _currentIndex;
			if(_currentIndex > 0) _currentIndex--;
			else {
				if(_noCycle) return;
				else _currentIndex = _slideCount-1;
			}
			switchSlide();
		}
		function nextSlide() {
			if(_disableWhileAnimating && _anim) return;
			_prevIndex = _currentIndex;
			if(_currentIndex < _slideCount-1) _currentIndex++;
			else {
				if(_noCycle) return;
				else _currentIndex = 0;
			}
			switchSlide();
		}
		function refreshStatus() {
			if(_dynamicImageLoad) loadSlide(_slides.eq(_currentIndex));
			if(_pagerLinks.length) _pagerLinks.removeClass(_activeClass).eq(_currentIndex).addClass(_activeClass);
			if(_currentNum) _currentNum.text(_currentIndex+1);
			if(_allNum) _allNum.text(_slideCount);
			_slides.eq(_prevIndex).removeClass(_activeClass);
			_slides.eq(_currentIndex).addClass(_activeClass);
			if(_noCycle) {
				if(_btnPrev.length) {
					if(_currentIndex == 0) _btnPrev.addClass(_disabledClass);
					else _btnPrev.removeClass(_disabledClass);
				}
				if(_btnNext.length) {
					if(_currentIndex == _slideCount-1) _btnNext.addClass(_disabledClass);
					else _btnNext.removeClass(_disabledClass);
				}
			}
			if(typeof _onChange === 'function') {
				_onChange(_this, _slides, _prevIndex, _currentIndex);
			}
		}
		function switchSlide() {
			_anim = true;
			if(typeof _onBeforeFade === 'function') _onBeforeFade(_this, _slides, _prevIndex, _currentIndex);
			_slides.eq(_prevIndex).stop().animate({'opacity':0}, {duration:_duration, queue: false, complete:function(){
				_anim = false;
			}});
			_slides.eq(_currentIndex).stop().animate({'opacity':1}, {duration:_duration, queue: false, complete:function(){
				if(typeof _onAfterFade === 'function') _onAfterFade(_this, _slides, _prevIndex, _currentIndex);
			}});
			if(_autoHeight) _slides.eq(_currentIndex).parent().animate({height:_slides.eq(_currentIndex).outerHeight(true)},{duration:_duration,queue:false});
			refreshStatus();
			autoSlide();
		}

		// autoslide function
		function autoSlide() {
			if(!_autoRotation || _hover) return;
			if(_timer) clearTimeout(_timer);
			_timer = setTimeout(nextSlide,_switchTime+_duration);
		}
		if(_pauseOnHover) {
			_this.hover(function(){
				_hover = true;
				if(_timer) clearTimeout(_timer);
			},function(){
				_hover = false;
				autoSlide();
			});
		}
		refreshStatus();
		autoSlide();
		
		/*jQuery(window).focus(function (){
			_hover = false;
			autoSlide();
		}).blur(function(){
			_hover = true;
			if(_timer) clearTimeout(_timer);
		})*/
	});
}

// clear inputs on focus
function initInputs() {
	// replace options
	var opt = {
		clearInputs: true,
		clearTextareas: true,
		clearPasswords: true
	}
	// collect all items
	var inputs = [].concat(
		PlaceholderInput.convertToArray(document.getElementsByTagName('input')),
		PlaceholderInput.convertToArray(document.getElementsByTagName('textarea'))
	);
	// apply placeholder class on inputs
	for(var i = 0; i < inputs.length; i++) {
		if(inputs[i].className.indexOf('default') < 0) {
			var inputType = PlaceholderInput.getInputType(inputs[i]);
			if((opt.clearInputs && inputType === 'text') ||
				(opt.clearTextareas && inputType === 'textarea') || 
				(opt.clearPasswords && inputType === 'password')
			) {
				new PlaceholderInput({
					element:inputs[i],
					wrapWithElement:false,
					showUntilTyping:false,
					getParentByClass:false,
					placeholderAttr:'value'
				});
			}
		}
	}
}

// input type placeholder class
;(function(){
	PlaceholderInput = function() {
		this.options = {
			element:null,
			showUntilTyping:false,
			wrapWithElement:false,
			getParentByClass:false,
			placeholderAttr:'value',
			inputFocusClass:'focus',
			inputActiveClass:'text-active',
			parentFocusClass:'parent-focus',
			parentActiveClass:'parent-active',
			labelFocusClass:'label-focus',
			labelActiveClass:'label-active',
			fakeElementClass:'input-placeholder-text'
		}
		this.init.apply(this,arguments);
	}
	PlaceholderInput.convertToArray = function(collection) {
		var arr = [];
		for (var i = 0, ref = arr.length = collection.length; i < ref; i++) {
		 arr[i] = collection[i];
		}
		return arr;
	}
	PlaceholderInput.getInputType = function(input) {
		return (input.type ? input.type : input.tagName).toLowerCase();
	}
	PlaceholderInput.prototype = {
		init: function(opt) {
			this.setOptions(opt);
			if(this.element && this.element.PlaceholderInst) {
				this.element.PlaceholderInst.refreshClasses();
			} else {
				this.element.PlaceholderInst = this;
				if(this.elementType == 'text' || this.elementType == 'password' || this.elementType == 'textarea') {
					this.initElements();
					this.attachEvents();
					this.refreshClasses();
				}
			}
		},
		setOptions: function(opt) {
			for(var p in opt) {
				if(opt.hasOwnProperty(p)) {
					this.options[p] = opt[p];
				}
			}
			if(this.options.element) {
				this.element = this.options.element;
				this.elementType = PlaceholderInput.getInputType(this.element);
				this.wrapWithElement = (this.elementType === 'password' || this.options.showUntilTyping ? true : this.options.wrapWithElement);
				this.setOrigValue( this.options.placeholderAttr == 'value' ? this.element.defaultValue : this.element.getAttribute(this.options.placeholderAttr) );
			}
		},
		setOrigValue: function(value) {
			this.origValue = value;
		},
		initElements: function() {
			// create fake element if needed
			if(this.wrapWithElement) {
				this.element.value = '';
				this.element.removeAttribute(this.options.placeholderAttr);
				this.fakeElement = document.createElement('span');
				this.fakeElement.className = this.options.fakeElementClass;
				this.fakeElement.innerHTML += this.origValue;
				this.fakeElement.style.color = getStyle(this.element, 'color');
				this.fakeElement.style.position = 'absolute';
				this.element.parentNode.insertBefore(this.fakeElement, this.element);
			}
			// get input label
			if(this.element.id) {
				this.labels = document.getElementsByTagName('label');
				for(var i = 0; i < this.labels.length; i++) {
					if(this.labels[i].htmlFor === this.element.id) {
						this.labelFor = this.labels[i];
						break;
					}
				}
			}
			// get parent node (or parentNode by className)
			this.elementParent = this.element.parentNode;
			if(typeof this.options.parentByClass === 'string') {
				var el = this.element;
				while(el.parentNode) {
					if(hasClass(el.parentNode, this.options.parentByClass)) {
						this.elementParent = el.parentNode;
						break;
					} else {
						el = el.parentNode;
					}
				}
			}
		},
		attachEvents: function() {
			this.element.onfocus = bindScope(this.focusHandler, this);
			this.element.onblur = bindScope(this.blurHandler, this);
			if(this.options.showUntilTyping) {
				this.element.onkeydown = bindScope(this.typingHandler, this);
				this.element.onpaste = bindScope(this.typingHandler, this);
			}
			if(this.wrapWithElement) this.fakeElement.onclick = bindScope(this.focusSetter, this);
		},
		togglePlaceholderText: function(state) {
			if(this.wrapWithElement) {
				this.fakeElement.style.display = state ? '' : 'none';
			} else {
				this.element.value = state ? this.origValue : '';
			}
		},
		focusSetter: function() {
			this.element.focus();
		},
		focusHandler: function() {
			this.focused = true;
			if(!this.element.value.length || this.element.value === this.origValue) {
				if(!this.options.showUntilTyping) {
					this.togglePlaceholderText(false);
				}
			}
			this.refreshClasses();
		},
		blurHandler: function() {
			this.focused = false;
			if(!this.element.value.length || this.element.value === this.origValue) {
				this.togglePlaceholderText(true);
			}
			this.refreshClasses();
		},
		typingHandler: function() {
			setTimeout(bindScope(function(){
				if(this.element.value.length) {
					this.togglePlaceholderText(false);
					this.refreshClasses();
				}
			},this), 10);
		},
		refreshClasses: function() {
			this.textActive = this.focused || (this.element.value.length && this.element.value !== this.origValue);
			this.setStateClass(this.element, this.options.inputFocusClass,this.focused);
			this.setStateClass(this.elementParent, this.options.parentFocusClass,this.focused);
			this.setStateClass(this.labelFor, this.options.labelFocusClass,this.focused);
			this.setStateClass(this.element, this.options.inputActiveClass, this.textActive);
			this.setStateClass(this.elementParent, this.options.parentActiveClass, this.textActive);
			this.setStateClass(this.labelFor, this.options.labelActiveClass, this.textActive);
		},
		setStateClass: function(el,cls,state) {
			if(!el) return; else if(state) addClass(el,cls); else removeClass(el,cls);
		}
	}
	
	// utility functions
	function hasClass(el,cls) {
		return el.className ? el.className.match(new RegExp('(\\s|^)'+cls+'(\\s|$)')) : false;
	}
	function addClass(el,cls) {
		if (!hasClass(el,cls)) el.className += " "+cls;
	}
	function removeClass(el,cls) {
		if (hasClass(el,cls)) {el.className=el.className.replace(new RegExp('(\\s|^)'+cls+'(\\s|$)'),' ');}
	}
	function bindScope(f, scope) {
		return function() {return f.apply(scope, arguments)}
	}
	function getStyle(el, prop) {
		if (document.defaultView && document.defaultView.getComputedStyle) {
			return document.defaultView.getComputedStyle(el, null)[prop];
		} else if (el.currentStyle) {
			return el.currentStyle[prop];
		} else {
			return el.style[prop];
		}
	}
}());