// page init
$(function(){
	initGalleries();
	initAccordion();
});

// init accordion
function initAccordion(){
	jQuery('.nav-column .btm-bg ul').acc({
		speed: 400,
		active: 'active',
		list: '.children()',
		opener: 'a.opener',
		slide: 'div.slide',
		event: 'mouseover'
	});
}

// init galleries
function initGalleries(){
	jQuery('div.slide-box').scrollGallery({
	    sliderHolder: 'div.slide',
	    slider: '>ul',
	    slides: '>li',
	    pagerLinks: 'ul.swicher a',
	    autoRotation: true,
	    switchTime: 5000,
	    duration: 450,
	    activeClass: 'active'
	});
	
	jQuery('div.gallery').scrollGallery({
		sliderHolder: 'div.slide',
		slider:'>ul',
		slides:'>li',
		pagerLinks:'ul.swicher a',
		autoRotation:true,
		switchTime:6000,
		duration:450,
		activeClass:'active'
	});
}

// scrolling gallery plugin
jQuery.fn.scrollGallery = function(_options){
	var _options = jQuery.extend({
		sliderHolder: '>div',
		slider:'>ul',
		slides: '>li',
		pagerLinks:'div.pager a',
		btnPrev:'a.link-prev',
		btnNext:'a.link-next',
		activeClass:'active',
		disabledClass:'disabled',
		generatePagination:false,
		curNum:'em.scur-num',
		allNum:'em.sall-num',
		circleSlide:true,
		pauseClass:'gallery-paused',
		pauseButton:'none',
		pauseOnHover:true,
		autoRotation:false,
		stopAfterClick:false,
		switchTime:6000,
		duration:650,
		easing:'swing',
		event:'click',
		splitCount:false,
		afterInit:false,
		vertical:false,
		step:1
	},_options);

	return this.each(function(){
		// gallery options
		var _this = jQuery(this);
		var _sliderHolder = jQuery(_options.sliderHolder, _this);
		var _slider = jQuery(_options.slider, _sliderHolder);
		var _slides = jQuery(_options.slides, _slider);
		var _btnPrev = jQuery(_options.btnPrev, _this);
		var _btnNext = jQuery(_options.btnNext, _this);
		var _pagerLinks = jQuery(_options.pagerLinks, _this);
		var _generatePagination = jQuery(_options.generatePagination, _this);
		var _curNum = jQuery(_options.curNum, _this);
		var _allNum = jQuery(_options.allNum, _this);
		var _pauseButton = jQuery(_options.pauseButton, _this);
		var _pauseOnHover = _options.pauseOnHover;
		var _pauseClass = _options.pauseClass;
		var _autoRotation = _options.autoRotation;
		var _activeClass = _options.activeClass;
		var _disabledClass = _options.disabledClass;
		var _easing = _options.easing;
		var _duration = _options.duration;
		var _switchTime = _options.switchTime;
		var _controlEvent = _options.event;
		var _step = _options.step;
		var _vertical = _options.vertical;
		var _circleSlide = _options.circleSlide;
		var _stopAfterClick = _options.stopAfterClick;
		var _afterInit = _options.afterInit;
		var _splitCount = _options.splitCount;

		// gallery init
		if(!_slides.length) return;

		if(_splitCount) {
			var curStep = 0;
			var newSlide = $('<slide>').addClass('split-slide');
			_slides.each(function(){
				newSlide.append(this);
				curStep++;
				if(curStep > _splitCount-1) {
					curStep = 0;
					_slider.append(newSlide);
					newSlide = $('<slide>').addClass('split-slide');
				}
			});
			if(curStep) _slider.append(newSlide);
			_slides = _slider.children();
		}

		var _currentStep = 0;
		var _sumWidth = 0;
		var _sumHeight = 0;
		var _hover = false;
		var _stepWidth;
		var _stepHeight;
		var _stepCount;
		var _offset;
		var _timer;

		_slides.each(function(){
			_sumWidth+=$(this).outerWidth(true);
			_sumHeight+=$(this).outerHeight(true);
		});

		// calculate gallery offset
		function recalcOffsets() {
			if(_vertical) {
				if(_step) {
					_stepHeight = _slides.eq(_currentStep).outerHeight(true);
					_stepCount = Math.ceil((_sumHeight-_sliderHolder.height())/_stepHeight)+1;
					_offset = -_stepHeight*_currentStep;
				} else {
					_stepHeight = _sliderHolder.height();
					_stepCount = Math.ceil(_sumHeight/_stepHeight);
					_offset = -_stepHeight*_currentStep;
					if(_offset < _stepHeight-_sumHeight) _offset = _stepHeight-_sumHeight;
				}
			} else {
				if(_step) {
					_stepWidth = _slides.eq(_currentStep).outerWidth(true)*_step;
					_stepCount = Math.ceil((_sumWidth-_sliderHolder.width())/_stepWidth)+1;
					_offset = -_stepWidth*_currentStep;
					if(_offset < _sliderHolder.width()-_sumWidth) _offset = _sliderHolder.width()-_sumWidth;
				} else {
					_stepWidth = _sliderHolder.width();
					_stepCount = Math.ceil(_sumWidth/_stepWidth);
					_offset = -_stepWidth*_currentStep;
					if(_offset < _stepWidth-_sumWidth) _offset = _stepWidth-_sumWidth;
				}
			}
		}

		// gallery control
		if(_btnPrev.length) {
			_btnPrev.bind(_controlEvent,function(){
				if(_stopAfterClick) stopAutoSlide();
				prevSlide();
				return false;
			});
		}
		if(_btnNext.length) {
			_btnNext.bind(_controlEvent,function(){
				if(_stopAfterClick) stopAutoSlide();
				nextSlide();
				return false;
			});
		}
		if(_generatePagination.length) {
			_generatePagination.empty();
			recalcOffsets();
			var _list = $('<ul />');
			for(var i=0; i<_stepCount; i++) $('<li><a href="#">'+(i+1)+'</a></li>').appendTo(_list);
			_list.appendTo(_generatePagination);
			_pagerLinks = _list.children();
		}
		if(_pagerLinks.length) {
			_pagerLinks.each(function(_ind){
				jQuery(this).bind(_controlEvent,function(){
					if(_currentStep != _ind) {
						if(_stopAfterClick) stopAutoSlide();
						_currentStep = _ind;
						switchSlide();
					}
					return false;
				});
			});
		}

		// gallery animation
		function prevSlide() {
			recalcOffsets();
			if(_currentStep > 0) _currentStep--;
			else if(_circleSlide) _currentStep = _stepCount-1;
			switchSlide();
		}
		function nextSlide() {
			recalcOffsets();
			if(_currentStep < _stepCount-1) _currentStep++;
			else if(_circleSlide) _currentStep = 0;
			switchSlide();
		}
		function refreshStatus() {
			if(_pagerLinks.length) _pagerLinks.removeClass(_activeClass).eq(_currentStep).addClass(_activeClass);
			if(!_circleSlide) {
				_btnPrev.removeClass(_disabledClass);
				_btnNext.removeClass(_disabledClass);
				if(_currentStep == 0) _btnPrev.addClass(_disabledClass);
				if(_currentStep == _stepCount-1) _btnNext.addClass(_disabledClass);
			}
			if(_curNum.length) _curNum.text(_currentStep+1);
			if(_allNum.length) _allNum.text(_stepCount);
		}
		function switchSlide() {
			recalcOffsets();
			if(_vertical) _slider.animate({marginTop:_offset},{duration:_duration,queue:false,easing:_easing});
			else _slider.animate({marginLeft:_offset},{duration:_duration,queue:false,easing:_easing});
			refreshStatus();
			autoSlide();
		}

		// autoslide function
		function stopAutoSlide() {
			if(_timer) clearTimeout(_timer);
			_autoRotation = false;
		}
		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();
			});
		}
		recalcOffsets();
		refreshStatus();
		autoSlide();

		// pause buttton
		if(_pauseButton.length) {
			_pauseButton.click(function(){
				if(_this.hasClass(_pauseClass)) {
					_this.removeClass(_pauseClass);
					_autoRotation = true;
					autoSlide();
				} else {
					_this.addClass(_pauseClass);
					stopAutoSlide();
				}
				return false;
			});
		}

		if(_afterInit && typeof _afterInit === 'function') _afterInit(_this, _slides);
	});
}

jQuery.fn.acc = function (_options) {
    var _options = jQuery.extend({
        speed: 400,
        active: 'active',
        list: '.children()',
        opener: 'a.opener',
        slide: 'div.slide'
    }, _options);
    return this.each(function () {
        var _list = eval('jQuery(this)' + _options.list);
        var _active = _options.active;
        var _speed = _options.speed;
        var _a = _list.index(_list.filter('.' + _active + ':eq(0)'));
        if (_a != -1) _list.removeClass(_active).eq(_a).addClass(_active);
        for (var i = 0; i < _list.length; i++) {
            _list.eq(i).data('btn', _list.eq(i).find(_options.opener).eq(0));
            _list.eq(i).data('box', _list.eq(i).children(_options.slide).eq(0));
            if (i == _a) _list.eq(i).data('box').css('display', 'block');
            else {
                if (_list.eq(i).data('box').attr('expanded') == 'false')
                _list.eq(i).data('box').css('display', 'none') };
            _list.eq(i).data('btn').data('ind', i);
            _list.eq(i).data('btn').click(function () {
                if (_list.eq(jQuery(this).data('ind')).data('box').length != 0) {
                    changeEl(jQuery(this).data('ind'));
                    return false;
                }
            });
        }
        var anim_f = true;
        var a_h, ind_h, _k;
        function changeEl(_ind) {
            if (anim_f) {
                anim_f = false;
                if (_a == _ind) {
                    _list.eq(_a).removeClass(_active).data('box').animate({ height: 0 }, {
                        duration: _speed,
                        complete: function () {
                            jQuery(this).css({ display: 'none', height: 'auto' });
                            _a = -1;
                            anim_f = true;
                        }
                    });
                }
                else {
                    _list.eq(_ind).data('box').css('display', 'block');
                    ind_h = _list.eq(_ind).data('box').outerHeight();
                    _list.eq(_ind).data('box').height(0);
                    if (_a != -1) {
                        a_h = _list.eq(_a).removeClass(_active).data('box').outerHeight();
                        _k = a_h / ind_h;
                    }
                    _list.eq(_ind).addClass(_active).data('box').animate({ height: ind_h }, {
                        duration: _speed,
                        step: function (t_h) {
                            if (_a != -1) _list.eq(_a).data('box').height(a_h - t_h * _k);
                        },
                        complete: function () {
                            _list.eq(_ind).data('box').height('auto');
                            if (_a != -1) _list.eq(_a).data('box').css({ display: 'none', height: 'auto' });
                            _a = _ind;
                            anim_f = true;
                        }
                    });
                }
            }
        }
    });
}