/*
    anythingSlider v1.2
    
    By Chris Coyier: http://css-tricks.com
    with major improvements by Doug Neiner: http://pixelgraphics.us/
    based on work by Remy Sharp: http://jqueryfordesigners.com/


	To use the navigationFormatter function, you must have a function that
	accepts two paramaters, and returns a string of HTML text.
	
	index = integer index (1 based);
	panel = jQuery wrapped LI item this tab references
	@return = Must return a string of HTML/Text
	
	navigationFormatter: function(index, panel){
		return index + " Panel"; // This would have each tab with the text 'X Panel' where X = index
	}
*/

(function($){
	
    $.anythingSlider = function(el, options){
        // To avoid scope issues, use 'base' instead of 'this' to reference this class from internal events and functions.
        var base = this;
        
        // Access to jQuery and DOM versions of element
        base.$el = $(el);
        base.el = el; 

		// Set up a few defaults
        base.currentPage = 1;
		base.timer = null;
		base.currentDelay = null;
		base.currentType = null;

        // Add a reverse reference to the DOM object
        base.$el.data("AnythingSlider", base);
        
        base.init = function(){
            base.options = $.extend({},$.anythingSlider.defaults, options);
			
			// Cache existing DOM elements for later 
			base.$wrapper = base.$el.find('> div').css('overflow', 'hidden');
            base.$slider  = base.$wrapper.find('> ul');
            base.$items   = base.$slider.find('> li');
            base.$single  = base.$items.filter(':first');

			// Build the navigation if needed
			if(base.options.buildNavigation) base.buildNavigation();
        
        	// Get the details
            base.singleWidth = base.$single.outerWidth();
            base.pages = base.$items.length;

            // Top and tail the list with 'visible' number of items, top has the last section, and tail has the first
			// This supports the "infinite" scrolling
			base.$items.filter(':first').before(base.$items.filter(':last').clone().addClass('cloned'));
            base.$items.filter(':last' ).after(base.$items.filter(':first').clone().addClass('cloned'));

			// We just added two items, time to re-cache the list
            base.$items = base.$slider.find('> li'); // reselect
            
			// Setup initial delay - initial delay is component 1
			base.currentDelay = (base.options.enabledSameDelay ? base.options.delay : $('#componentDelay_1').html());

			// Setup initial component type
			base.currentType = $('#componentType_1').html()

			// Setup our forward/backward navigation
			base.buildNextBackButtons();

			// If autoPlay functionality is included, then initialize the settings
			if(base.options.autoPlay) {
				globalPlaying = !base.options.startStopped; // Sets the playing variable to false if startStopped is true
				base.buildAutoPlay();
			};
			
			// If pauseOnHover then add hover effects
			if(base.options.pauseOnHover) {
				base.$el.hover(function(){
					base.clearTimer();
				}, function(){
					base.startStop(globalPlaying);
				});
			};
			
			// If a hash can not be used to trigger the plugin, then go to page 1
			if((base.options.hashTags == true && !base.gotoHash()) || base.options.hashTags == false){
				base.setCurrentPage(1);				
			};

			// Setup our thumbs view/hide option
			if(base.options.buildThumbList == true){			
				base.buildThumbs();
			};

        };


		// FUNCTIONS

		base.gotoPage = function(page, autoplay, continueanimation){

			// When autoplay isn't passed, we stop the timer
			if(autoplay !== true) autoplay = false;
			if(!autoplay) base.startStop(false);
			
			if(typeof(page) == "undefined" || page == null) {
				page = 1;
				base.setCurrentPage(1);
			};
			
			if(continueanimation !== true) continueanimation = false;

			// Just check for bounds
			if(page > base.pages + 1) page = base.pages;
			if(page < 0 ) page = 1;

			var dir = page < base.currentPage ? -1 : 1;
			var n = Math.abs(base.currentPage - page);
			var left = base.singleWidth * dir * n;
			
			base.$wrapper.filter(':not(:animated)').animate(
				{ scrollLeft : '+=' + left }, 
				base.options.animationTime, 
				base.options.easing, 
				function () {
					if (page == 0) {
						base.$wrapper.scrollLeft(base.singleWidth * base.pages);
						page = base.pages;
					} else if (page > base.pages) {
						base.$wrapper.scrollLeft(base.singleWidth);						
						page = 1;	// reset back to start position
					};
					base.setCurrentPage(page);				
				}
			);		

			if(continueanimation){
				base.clearTimer();				
				base.timer = window.setTimeout(
					function(){
						base.goForward(true, continueanimation);
					}, base.options.enabledSameDelay ? base.options.delay : $('#componentDelay_'+ ((page > base.pages) ? base.pages : page)).html());
				globalTimer = base.timer;
			};

		};

		
		base.setCurrentInfo = function(page){
			componentInfo = $('#componentInfo_'+ page).html();
			if(componentInfo != ''){
				$('#sliderComponentsInfo').show('fast');
				$('#sliderComponentsInfo').html(componentInfo);
				globalViewingInfo = true;
			}else{
				$('#sliderComponentsInfo').hide('slow');				
				globalViewingInfo = false;
			};
			$('#sliderComponentsThumbs').css('width', (globalViewingInfo ? '650px': '900px'));
		};


		base.setCurrentDelay = function(page){
			componentDelay = $('#componentDelay_'+ page).html();
			base.currentDelay = (base.options.enabledSameDelay ? base.options.delay : componentDelay);	// Update local variable
		};


		base.setCurrentType = function(page){
			base.currentType = $('#componentType_'+ page).html();	// Update local variable
		};


		base.setCurrentPage = function(page, move){
			// Set visual
			if(base.options.buildNavigation){
				base.$nav.find('.cur').removeClass('cur');
				$(base.$navLinks[page - 1]).addClass('cur');	
			};
			
			// Set current thumb
			if(base.options.buildThumbList){
				for(i=1;i<=base.pages;i++){
					$('#thumb_' + i).css('border', '2px solid ' + ((i == page) ? '#1A6C94' : '#7B7778'));
				}
			};
			
			// Only change left if move does not equal false
			if(move !== false){
				base.$wrapper.scrollLeft(base.singleWidth * page);
			};

			// Update local variable
			base.currentPage = page;

			// Set Current component Info
			base.setCurrentInfo(page);
			
			// Set Current component Delay
			base.setCurrentDelay(page);

			// Set Current component Type
			base.setCurrentType(page);
		};

		
		base.goForward = function(autoplay, continueanimation){
			if(autoplay !== true) autoplay = false;
			base.gotoPage(base.currentPage + 1, autoplay, continueanimation);
		};

		
		base.goBack = function(){
			base.gotoPage(base.currentPage - 1);
		};

		
		// This method tries to find a hash that matches panel-X
		// If found, it tries to find a matching item
		// If that is found as well, then that item starts visible
		base.gotoHash = function(){
			if(/^#?panel-\d+$/.test(window.location.hash)){
				var index = parseInt(window.location.hash.substr(7));
				var $item = base.$items.filter(':eq(' + index + ')');
				if($item.length != 0){
					base.setCurrentPage(index);
					return true;
				};
			};
			return false; // A item wasn't found;
		};

        
		// Creates the numbered navigation links
		base.buildNavigation = function(){
			base.$nav = $("<div id='thumbNav' class='thumbNav'></div>").appendTo(base.$el);
			base.$items.each(function(i,el){
				var index = i + 1;
				var $a = $("<a href='#'></a>");
				
				// If a formatter function is present, use it
				if( typeof(base.options.navigationFormatter) == "function"){
					$a.html(base.options.navigationFormatter(index, $(this)));
				} else {
					$a.text(index);
				}
				$a.click(function(e){
                    base.gotoPage(index, !base.options.stopAfterSelect, true);
                    
                    if (base.options.hashTags)
						base.setHash('panel-' + index);
					
					stopAllVideos();

                    e.preventDefault();
				});
				base.$nav.append($a);
			});
			base.$navLinks = base.$nav.find('> a');
		};



		// Creates the Thumbs button
		base.buildThumbs = function(){
			base.$thumbs = $('<a href="#" id="toggleThumbs"></a>').html('Ver Thumbs');	// init text	           
            base.$thumbs.click(function(e){
				$('#toggleThumbs').html((globalViewingThumbs ? 'Ver Thumbs' : 'Ocultar'));
				$('#sliderComponentsThumbs').animate({"width": (globalViewingInfo ?  "650px" : "900px"), "opacity": (!globalViewingThumbs ? "show" : "hide")}, 500);				
				globalViewingThumbs = !globalViewingThumbs;
				e.preventDefault();
            });
			base.$el.append(base.$thumbs); 
		};



		// Creates the Forward/Backward buttons
		base.buildNextBackButtons = function(){
			var $forward = $("<a href='#' id='arrowForward' class='arrow forward'>" +  base.options.forwardText + "</a>");
			var $back = $("<a href='#' id='arrowBack' class='arrow back'>" +  base.options.backText + "</a>");			

            // Bind to the forward and back buttons
            $back.click(function(e){
				stopAllVideos();
                base.goBack();
				e.preventDefault();
            });

            $forward.click(function(e){
				stopAllVideos();
                base.goForward();
				e.preventDefault();
            });

			// Append elements to page
			base.$el.append($back); 
			base.$el.append($forward); 
		};
		



		// Creates the Start/Stop button
		base.buildAutoPlay = function(){
			base.$startStop = $("<a href='#' id='start-stop'></a>").html(globalPlaying ? base.options.stopText : base.options.startText);
			base.$el.append(base.$startStop);            
            base.$startStop.click(function(e){
				
				if(!globalPlaying){
					stopAllVideos();
				}				

				base.startStop(!globalPlaying);
				e.preventDefault();
            });

			// Use the same setting, but trigger the start;
			base.startStop(globalPlaying);
		};
		


		
		// Handles stopping and playing the slideshow
		// Pass startStop(false) to stop and startStop(true) to play
		base.startStop = function(playing){
			if(playing !== true) playing = false; // Default if not supplied is false
			
			// Update variable
			globalPlaying = playing;

			// Toggle playing and text
			if(base.options.autoPlay) base.$startStop.toggleClass("playing", playing).html( playing ? base.options.stopText : base.options.startText );
			
			if(playing){
				base.clearTimer(); // Just in case this was triggered twice in a row				
				base.timer = window.setTimeout(
					function(){
						base.goForward(true, true);
					}, base.options.enabledSameDelay ? base.options.delay : base.currentDelay);
				globalTimer = base.timer;
			} else {
				base.clearTimer();
			};
		};


		base.clearTimer = function(){
			// Clear the timer only if it is set
			if(base.timer){
				window.clearTimeout(base.timer);
			}				
		};
		
		// Taken from AJAXY jquery.history Plugin
		base.setHash = function ( hash ) {
			// Write hash
			if ( typeof window.location.hash !== 'undefined' ) {
				if ( window.location.hash !== hash ) {
					window.location.hash = hash;
				};
			} else if ( location.hash !== hash ) {
				location.hash = hash;
			};
			
			// Done
			return hash;
		};
		// <-- End AJAXY code


		// Trigger the initialization
        base.init();
    };

	
    $.anythingSlider.defaults = {
        easing: "swing",                // Anything other than "linear" or "swing" requires the easing plugin
        autoPlay: true,                 // This turns off the entire FUNCTIONALY, not just if it starts running or not
        startStopped: false,            // If autoPlay is on, this can force it to start stopped
        enabledSameDelay: false,	// If is enabled, all componente have same delay transition
		delay: 3000,                    // How long between slide transitions in AutoPlay mode, must be enabledSameDelay on
        animationTime: 600,             // How long the slide transition takes
        hashTags: true,                 // Should links change the hashtag in the URL?
        buildNavigation: true,          // If true, builds and list of anchor links to link to each slide
		buildThumbList: false,			// If true, builds a list of images thumbnails
        pauseOnHover: true,             // If true, and autoPlay is enabled, the show will pause on hover
		startText: "",             // Start text
		stopText: "",               // Stop text
		stopAfterSelect: true,			// Stop animation after select some component
		navigationFormatter: null,       // Details at the top of the file on this use (advanced use)
		forwardText: "",			// Forward text
		backText: ""					// Back text
    };
	

    $.fn.anythingSlider = function(options){
		if(typeof(options) == "object"){
		    return this.each(function(i){			
				(new $.anythingSlider(this, options));

	            // This plugin supports multiple instances, but only one can support hash-tag support
				// This disables hash-tags on all items but the first one
				options.hashTags = false;
	        });	
		} else if (typeof(options) == "number") {

			return this.each(function(i){
				var anySlide = $(this).data('AnythingSlider');
				if(anySlide){
					anySlide.gotoPage(options);
				}
			});
		}
    };

	
})(jQuery);