/*
    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.playing = false;

		// 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');
			base.$wrapper.hover(function() {
				base.startStop(false);
			}, function() {
				base.startStop(true);
			});
			// 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 our forward/backward navigation
			if (base.options.showArrows) {
				base.buildNextBackButtons();
			}
			// If autoPlay functionality is included, then initialize the
			// settings
			if (base.options.autoPlay) {
				base.playing = true;// 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(base.playing);
				});
			}

			// 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);
			}
			;
		};

		base.gotoPage = function(page, autoplay) {
			// When autoplay isn't passed, we stop the timer
			/*
			 * if(autoplay !== true) autoplay = false; if(!autoplay)
			 * base.startStop(false);
			 */
			//base.clearTimer();
			if (typeof (page) == "undefined" || page == null) {
				page = 1;
				base.setCurrentPage(1);
			}
			;
			if (base.pages <= 1) {
				return;
			}
			// Just check for bounds
			if (page > base.pages + 1)
				page = base.pages;
			if (page < 0)
				page = 1;

			var dir = page < base.currentPage ? -1 : 1, n = Math.abs(base.currentPage - page), left = base.singleWidth * dir * n;

			if (page == 0) {
				page = base.pages;
			} else if (page > base.pages) {
				page = 1;
			}
			base.setCurrentPage(page);

		};

		base.setCurrentPage = function(page, move) {
			if (base.options.buildNavigation) {
				base.$nav.find('.cur').removeClass('cur');
				$(base.$navLinks[page - 1]).addClass('cur');
			}
			base.$wrapper.find("> ul > li").css("display", "none");
			base.$wrapper.find("> ul > li:eq(" + (page - 1) + ")").css("display", "block");
			if ($.isFunction(base.options.onChange)) {
				base.options.onChange(page, base.currentPage);
			}
			base.currentPage = page;
		};

		base.goForward = function(autoplay) {
			if (autoplay !== true)
				autoplay = false;

			base.gotoPage(base.currentPage + 1, autoplay);
		};

		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 = $("<div id='thumbNav'></div>").appendTo(base.$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);

						if (base.options.hashTags)
							base.setHash('panel-' + index);

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

		// Creates the Forward/Backward buttons
		base.buildNextBackButtons = function() {
			var $forward = $('<a class="arrow forward">&gt;</a>'), $back = $('<a class="arrow back">&lt;</a>');

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

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

			// Append elements to page
			base.$wrapper.after($back).after($forward);
		};

		// Creates the Start/Stop button
		base.buildAutoPlay = function() {

			base.$startStop = $("<a href='#' id='start-stop' style='display:none;'></a>").html(base.playing ? base.options.stopText : base.options.startText);
			base.$el.append(base.$startStop);
			base.$startStop.click(function(e) {
				base.startStop(!base.playing);
				e.preventDefault();
			});

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

		// 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
			base.playing = 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.setInterval(function() {
					base.goForward(true);
				}, base.options.delay);
			} else {
				base.clearTimer();
			}
			;
		};

		base.clearTimer = function() {
			// Clear the timer only if it is set
			if (base.timer)
				window.clearInterval(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 = {
		// * amad
		showArrows : true,
		// amad *
		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
		delay : 3000, // How long between slide transitions in AutoPlay mode
		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
		pauseOnHover : true, // If true, and autoPlay is enabled, the show
		// will pause on hover
		startText : "Start", // Start text
		stopText : "Stop", // Stop text
		navigationFormatter : null,
		onChange : function() {
			return true;
		},
		onSlide : function() {
			return true;
		}
	// Details at the top of the file on this use (advanced use)
	};

	$.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.startStop(false);
					anySlide.gotoPage(options);
				}
			});
		}
	};

})(jQuery);