/*
 * Veil 1.0
 *
 * Author: Ryan Seddon
 * Dual licensed under the MIT (MIT-LICENSE.txt)
 * and GPL (GPL-LICENSE.txt) licenses.
 *
 */

(function($){
	$.fn.veil = function(options) {

		var defaults = {  
			speed: 1000,
			hideContent: true,
			hideIndex: "none",
			showIndex: "none",
			showThisManyItems: "",
			itemsAreWhat: "",
			sectionFooter: ".section-footer",
			showThisManyItemsTopClass: "top-listing",
			showThisManyItemsHideClass: "hide-listing",
			showThisManyItemsButton: ".show-all",
			hideRevealedItemsButton: ".hide-extra",
			activeClass: "active-section",
			hoverClass: "hover-section",
			CSScursor: "pointer"
		};  
		var options = $.extend(defaults, options);
			   	
		// Checks to see if anchor link is in url
		if(window.location.hash)
		{
			var itemQS = window.location.hash.substring(1,location.hash.length);
			itemQS = itemQS.match(/\eq\d{1,}/).join("");
			itemQSDigitExtract = parseInt(itemQS.replace(/eq/, ""));
		}
	   
	    $(options.sectionFooter).show();
	   
		return this.each(
			function(itemIndex) 
			{
				var title = $(this)
				var content = $(this).next();
				var contentlistings = content.find(options.itemsAreWhat);
				
				title.css({ cursor: options.CSScursor })
				
				if(options.showThisManyItems != "" && typeof options.showThisManyItems == "number")
				{
					$(contentlistings).each(function(itemIndex){
						if(itemIndex < options.showThisManyItems)
						{
							$(this).addClass(options.showThisManyItemsTopClass);
						} else {
							$(this).addClass(options.showThisManyItemsHideClass);
						}
					});
					
					$(options.showThisManyItemsButton).click(function(event){
						$(this).parents().find(options.itemsAreWhat).css({display: "block"});
						$(this).parent().css({display: "none"});
						$(this).parent().next().css({display: "block"});
						event.preventDefault();
					});
					
					$(options.hideRevealedItemsButton).click(function(event){
						$(this).parents().find(options.itemsAreWhat).removeAttr("style");
						$(this).parent().css({display: "none"});
						$(this).parent().prev().css({display: "block"});
						event.preventDefault();
					});
				}
				
				if(typeof options.hideIndex == "number")
				{
					// Error handling to make sure showIndex and hideIndex aren't both specified
					if(typeof options.showIndex == "number"){throw new Error("showIndex and hideIndex cannot be expressed in the same function, please use only one parameter");}
					
					title.addClass(options.activeClass);
				
					if(typeof itemQSDigitExtract == "number")
					{
						
						if($(this).attr('id') == itemQS)
						{
							title.addClass(options.activeClass);
							content.show();
							// Anchor works out before all content is hidden/shown this makes anchor visible again
							window.location = window.location.href;
						} else {
							title.removeClass(options.activeClass);
							content.hide();
						}
					} else {
						if(itemIndex == options.hideIndex)
						{
							title.removeClass(options.activeClass);
							content.hide();
						}
					}
				}
				else if(typeof options.showIndex == "number")
				{
					// Error handling to make sure showIndex and hideIndex aren't both specified
					if(typeof options.hideIndex == "number"){throw new Error("showIndex and hideIndex cannot be expressed in the same function, please use only one parameter");}
					
					content.hide();
					
					if(typeof itemQSDigitExtract == "number")
					{
						
						if($(this).attr('id') == itemQS)
						{
							title.addClass(options.activeClass);
							content.show();
							// Anchor works out before all content is hidden/shown this makes anchor visible again
							window.location = window.location.href;
						}
					} else {
						if(itemIndex == options.showIndex)
						{
							title.addClass(options.activeClass);
							content.show();
						}
					}
				} else {
					(options.hideContent) ? content.hide() : content.show();
				}
				
				title.click(function(event){
					title.toggleClass(options.activeClass);
					content.slideToggle(options.speed);
					event.preventDefault();
				}).hover(function(){
					title.toggleClass(options.hoverClass);
				}, function() { title.toggleClass(options.hoverClass); 
				});
			}
		);
	};
})(jQuery);