/*
 * DC jQuery Vertical Accordion Menu - jQuery vertical accordion menu plugin
 * Copyright (c) 2011 Design Chemical
 *
 * Dual licensed under the MIT and GPL licenses:
 * 	http://www.opensource.org/licenses/mit-license.php
 * 	http://www.gnu.org/licenses/gpl.html
 *
 */

try { console.assert(1); } catch(e) { console = { log: function() {}, assert: function() {} } }

(function($){

	$.fn.openFirstItem = function()
	{
		var first = this.children().first();
		first.children().first().next().slideToggle();
	}
	
	$.fn.dcAccordion = function(options)
	{
		//set default options 
		var defaults = {
			classParent	 : 'dcjq-parent',
			classActive	 : 'active',
			classArrow	 : 'dcjq-icon',
			classCount	 : 'dcjq-count',
			eventType	   : 'click',
			hoverDelay	 : 300,
			menuClose    : true,
			autoClose    : true,
			closeOnStart : true,
			speed        : 'slow',
			saveState	   : true,
			disableLink	 : true,
			showCount    : true,
			cookie	     : 'dcjq-accordion'
		};

		//call in the default otions
		var options = $.extend(defaults, options);

		var $dcAccordionObj = this;

		return $dcAccordionObj.each(function(options){

			setUpAccordion();
			
			if(defaults.saveState == true){
				cookieId = defaults.cookie;
				checkCookie(cookieId);
			}
			
			resetAccordion();

			if(defaults.eventType == 'hover'){

				var config = {
					sensitivity: 2, // number = sensitivity threshold (must be 1 or higher)
					interval: defaults.hoverDelay, // number = milliseconds for onMouseOver polling interval
					over: linkOver, // function = onMouseOver callback (REQUIRED)
					timeout: defaults.hoverDelay, // number = milliseconds delay before onMouseOut
					out: linkOut // function = onMouseOut callback (REQUIRED)
				};

				$('li a',$dcAccordionObj).hoverIntent(config);
				var configMenu = {
					sensitivity: 2, // number = sensitivity threshold (must be 1 or higher)
					interval: 1000, // number = milliseconds for onMouseOver polling interval
					over: menuOver, // function = onMouseOver callback (REQUIRED)
					timeout: 1000, // number = milliseconds delay before onMouseOut
					out: menuOut // function = onMouseOut callback (REQUIRED)
				};

				$($dcAccordionObj).hoverIntent(configMenu);

				// Disable parent links
				if(defaults.disableLink == true)
				{
					$('li a',$dcAccordionObj).click(function(e){
						if($(this).next('ul').length >0){
							e.preventDefault();
						}
					});
				}

			}
			else
			{
				$('li a',$dcAccordionObj).click(function(e)
				{
					$activeLi = $(this).parent('li');
					$parentsLi = $activeLi.parents('li');
					$parentsUl = $activeLi.parents('ul');
					
					// Prevent browsing to link if has child links
					if(defaults.disableLink == true){
						if($(this).next('ul').length >0){
							e.preventDefault();
						}
					}

					// Auto close sibling menus
					if(defaults.autoClose == true){
						autoCloseAccordion($parentsLi, $parentsUl);
					}

					if ($('> ul',$activeLi).is(':visible'))
					{
						$('ul',$activeLi).slideUp(defaults.speed);
						$('a',$activeLi).removeClass(defaults.classActive);
					} 
					else
					{
						$(this).next().slideToggle(defaults.speed);
						$('> a',$activeLi).addClass(defaults.classActive);
						
						if ($.browser.msie && $.browser.version.substr(0,1) == 6)
						{
							// $( 'ul.navigation_list li ul li:last-child' ).addClass( 'navigation_last_child' );
							// $( 'ul.case_study_navigation_list li ul li:last-child' ).addClass( 'navigation_last_child' );
							// $( 'ul.service_navigation_list li ul li:last-child' ).addClass( 'navigation_last_child' );
						}
					}
					
					// Write cookie if save state is on
					if(defaults.saveState == true){
						createCookie();
					}
				});
			}

			// Set up accordion
			function setUpAccordion()
			{
				$arrow = '<span class="'+defaults.classArrow+'"></span>';
				$('> ul',$dcAccordionObj).show();
				$('li',$dcAccordionObj).each(function(){
					var classParentLi = defaults.classParent+'-li';
					if($('> ul',this).length > 0){
						$(this).addClass(classParentLi);
						$('> a',this).addClass(defaults.classParent).append($arrow);
						if(defaults.showCount == true){
							var parentLink = $('li:not(.'+defaults.classParent+') > a',this);
							var countParent = parseInt($(parentLink).length);
							getCount = countParent;
							$('> a',this).append(' <span class="'+defaults.classCount+'">('+getCount+')</span>');
						}
					}
				});
				
				if ( defaults.closeOnStart )	
				{ 
					// alert( 'closing' );
					$('> ul',$dcAccordionObj).hide();
				}
			}
		});
		
		function linkOver()
		{
			$activeLi = $(this).parent('li');
			$parentsLi = $activeLi.parents('li');
			$parentsUl = $activeLi.parents('ul');

			// Auto close sibling menus
			if(defaults.autoClose == true)
			{
				autoCloseAccordion($parentsLi, $parentsUl);
			}

			if ($('> ul',$activeLi).is(':visible')){
				$('ul',$activeLi).slideUp(defaults.speed);
				$('a',$activeLi).removeClass(defaults.classActive);
			} else {
				$(this).next().slideToggle(defaults.speed);
				$('> a',$activeLi).addClass(defaults.classActive);
			}

			// Write cookie if save state is on
			if(defaults.saveState == true){
				createCookie();
			}
		}

		function linkOut(){
		}

		function menuOver(){
		}

		function menuOut(){

			if(defaults.menuClose == true){
				$('ul',$dcAccordionObj).slideUp(defaults.speed);
				// Reset active links
				$('a',$dcAccordionObj).removeClass(defaults.classActive);
				createCookie();
			}
		}

		// Auto-Close Open Menu Items
		function autoCloseAccordion($parentsLi, $parentsUl)
		{
			var services = $('#services_list_item' );
			var services_ul = $( services.children( 'ul' )[0] );
			
			$('ul',$dcAccordionObj).not($parentsUl).not(services_ul).slideUp(defaults.speed);
			// Reset active links
			$('a',$dcAccordionObj).removeClass(defaults.classActive);
			$('> a',$parentsLi).addClass(defaults.classActive);
		}

		// Retrieve cookie value and set active items
		function checkCookie(cookieId){
			var cookieVal = $.cookie(cookieId);
			if(cookieVal != null){
				// create array from cookie string
				var activeArray = cookieVal.split(',');
				$.each(activeArray, function(index,value){
					var $cookieLi = $('li:eq('+value+')',$dcAccordionObj);
					$('> a',$cookieLi).addClass(defaults.classActive);
					var $parentsLi = $cookieLi.parents('li');
					$('> a',$parentsLi).addClass(defaults.classActive);
				});
			}
		}

		// Reset accordion using active links
		function resetAccordion()
		{
			var services = $('#services_list_item' );
			var services_ul = $( services.children( 'ul' )[0] );
			
			$('ul',$dcAccordionObj).not( services_ul ).hide();
			$allActiveLi = $('a.'+defaults.classActive,$dcAccordionObj);
			$allActiveLi.next().show();
		}

		// Write cookie
		function createCookie(){
			var activeIndex = [];
			// Create array of active items index value
			$('li a.active',$dcAccordionObj).each(function(i){
				var $arrayItem = $(this).parent('li');
				var itemIndex = $('li',$dcAccordionObj).index($arrayItem);
					activeIndex.push(itemIndex);
				});
			// Store in cookie
			$.cookie(defaults.cookie, activeIndex, { path: '/' });
		}
	};
})(jQuery);