/*
 *	markup example for $("#slider").macAjaxGallerySlider();
 *	
 * 	<div id="slider">
 *		<ul>
 *			<li><img src="images/01.jpg" alt="" /></li>
 *			<li><img src="images/02.jpg" alt="" /></li>
 *			<li><img src="images/03.jpg" alt="" /></li>
 *			<li><img src="images/04.jpg" alt="" /></li>
 *			<li><img src="images/05.jpg" alt="" /></li>
 *		</ul>
 *	</div>
 *
 */

(function($) {

	$.fn.macAjaxGallerySlider = function(options){
	  
		// default configuration properties
		var defaults = {			
			prevId: 	 	    'mac-ajax-gallery-slider-prevBtn',
			prevText: 		  'Previous',
			nextId: 		    'mac-ajax-gallery-slider-nextBtn',	
			nextText: 		  'Next',
			controlsShow:	  true,
			controlsBefore: '',
			controlsAfter:	'',	
			controlsFade:	  true,
			firstId: 		    'mac-ajax-gallery-slider-firstBtn',
			firstText: 		  'First',
			firstShow:		  false,
			lastId: 		    'mac-ajax-gallery-slider-lastBtn',	
			lastText: 		  'Last',
			lastShow:		    false,				
			vertical:		    false,
			speed: 			    category_speed,
			auto:			      false,
			pause:			    category_timeout,
			continuous:		  false, 
			has_navi: 		  true,
			has_thumbs:     false,
			hasThumbNavi:   false,
			numericId: 		  'mac-ajax-gallery-slider-controls',
			setT:           null,
			lineClass:      'mac-ajax-gallery-slider-line-',
			lineEndClass:   'mac-ajax-gallery-slider-lineend-'
		}; 
		
		var options = $.extend(defaults, options);  
				
		this.each(function() {  
			var obj = $(this); 				
			var s = $("li", obj).length;
			var w = $("li", obj).width(); 
			var h = $("li", obj).height(); 
			var clickable = true;
			obj.width(w); 
			obj.height(h); 
			obj.css("overflow","hidden");
			var ts = s-1;
			var t = 0;
			$("ul", obj).css('width',s*w);			
			
			if(options.continuous){
				$("ul", obj).prepend($("ul li:last-child", obj).clone().css("margin-left","-"+ w +"px"));
				$("ul", obj).append($("ul li:nth-child(2)", obj).clone());
				$("ul", obj).css('width',(s+1)*w);
			};				
			
			if(!options.vertical) $("li", obj).css('float','left');
								
			if(options.controlsShow){
        if (document.getElementById('mac-ajax-gallery-navi')){
            //document.getElementById('mac-ajax-gallery-navi').innerHTML = '';
            $('#mac-ajax-gallery-navi').remove();
        }
        if (document.getElementById('mac-ajax-gallery-slider-prevBtn')){
            $('#mac-ajax-gallery-slider-prevBtn').remove();
        }
        if (document.getElementById('mac-ajax-gallery-slider-nextBtn')){
            $('#mac-ajax-gallery-slider-nextBtn').remove();
        }

				var html = options.controlsBefore;				
				//if(options.numeric){
        if(options.has_thumbs){
					html += '<div id="mac-ajax-gallery-navi" class="mac-ajax-gallery-navi" onmouseover="disableEnableThumbNavis(\'enable\');">';
					
					if (options.hasThumbNavi){
					    html += '<div id="mac-ajax-gallery-thumbnavi-prev" class="mac-ajax-gallery-thumbnavi-prev" onClick="changeThumbs(\'thumbPrev\');"> &laquo; </div>';
					}
					
					html += '<ol id="'+ options.numericId +'" class="'+ options.numericId +'"></ol>';

					if (options.hasThumbNavi){
					    html += '<div id="mac-ajax-gallery-thumbnavi-next" class="mac-ajax-gallery-thumbnavi-next" onClick="changeThumbs(\'thumbNext\');"> &raquo; </div>';
					}

					html += '</div>';
				}
					
				//} else {
        if(options.has_navi){
					if(options.firstShow) html += '<span id="'+ options.firstId +'" class="'+ options.firstId +'"><a href=\"javascript:void(0);\">'+ options.firstText +'</a></span>';
					html += ' <span id="'+ options.prevId +'" class="'+ options.prevId +'"><a href=\"javascript:void(0);\">'+ options.prevText +'</a></span>';
					html += ' <span id="'+ options.nextId +'" class="'+ options.nextId +'"><a href=\"javascript:void(0);\">'+ options.nextText +'</a></span>';
					if(options.lastShow) html += ' <span id="'+ options.lastId +'" class="'+ options.lastId +'"><a href=\"javascript:void(0);\">'+ options.lastText +'</a></span>';				
				};
				
				html += options.controlsAfter;						
				$(obj).after(html);										
			};
			
      //if(options.numeric){
			if(options.has_thumbs){
			  thumb_line = 1;
			  thumb_row  = 1;
s = nThumbs;
				for(var i=0;i<s;i++){
		      if (thumb_row < category_thumbs_row){
            currentLineClass = options.lineClass + thumb_line;
            thumb_row++;
		      }else if (thumb_row == category_thumbs_row){
		            currentLineClass = options.lineEndClass + thumb_line;
		            thumb_line++;
		            thumb_row = 1;
		      }
				  if (thumbsArray[i]){
    					$(document.createElement("li"))
    						.attr('id',options.numericId + (i+1))
    						.attr('class', currentLineClass)
    						.html('<div class="mac-ajax-gallery-thumbpicture-'+category_name+'" style="background-image:url(\''+thumbsArray[i]+'\');"><a rel='+ i +' href=\"javascript:void(0);\"></a>')
    						.appendTo($("#"+ options.numericId))
    						.click(function(){							
    							animate($("a",$(this)).attr('rel'),true);
    						});
    			}else{
    					$(document.createElement("li"))
    						.attr('id',options.numericId + (i+1))
    						.attr('class', currentLineClass)
    						.html('<div class="mac-ajax-gallery-thumbpicture-'+category_name+'" style="background-image:url(\''+thumbsArray[i]+'\');">')
    						.appendTo($("#"+ options.numericId));
    			}
				};
			}/*else {*/
			if(options.has_navi){
				$("a","#"+options.nextId).click(function(){		
					animate("next",true);
				});
				$("a","#"+options.prevId).click(function(){		
					animate("prev",true);				
				});	
				$("a","#"+options.firstId).click(function(){		
					animate("first",true);
				});				
				$("a","#"+options.lastId).click(function(){		
					animate("last",true);				
				});				
			};
			
			function setCurrent(i){
				i = parseInt(i)+1;
				showPreviewDescription(i);
				$("li", "#" + options.numericId).removeClass("current");
				$("li#" + options.numericId + i).addClass("current");
			};
			
			function adjust(){
				if(t>ts){
				    t=0;
				    if (hasThumbNavi){
				        changeThumbs('thumbNext');
				    }
				}
				if(t<0){
				    t=ts;	
				    if (hasThumbNavi){
				        changeThumbs('thumbPrev');
				    }
				}
				if(!options.vertical) {
					$("ul",obj).css("margin-left",(t*w*-1));
				} else {
					$("ul",obj).css("margin-left",(t*h*-1));
				}
				clickable = true;
				if(options.has_thumbs) setCurrent(t);
			};
			
			function animate(dir,clicked){
				if (clickable){
					clickable = false;
					t = parseInt(t);
					var ot = t;
					switch(dir){
						case "next":
							t = (ot>=ts) ? (options.continuous ? t+1 : ts) : t+1;						
							break; 
						case "prev":
							t = (t<=0) ? (options.continuous ? t-1 : 0) : t-1;
							break; 
						case "first":
							t = 0;
							break; 
						case "last":
							t = ts;
							break; 
						default:
							t = dir;
							break; 
					};

					var diff = Math.abs(ot-t);
					var speed = diff*options.speed;						
					if(!options.vertical) {
						p = (t*w*-1);
						$("ul",obj).animate(
							{ marginLeft: p }, 
							{ queue:false, duration:speed, complete:adjust }
						);				
					} else {
						p = (t*h*-1);
						$("ul",obj).animate(
							{ marginTop: p }, 
							{ queue:false, duration:speed, complete:adjust }
						);					
					};
					
					if(!options.continuous && options.controlsFade){					
						if(t==ts){
							$("a","#"+options.nextId).hide();
							$("a","#"+options.lastId).hide();
						} else {
							$("a","#"+options.nextId).show();
							$("a","#"+options.lastId).show();					
						};
						if(t==0){
							$("a","#"+options.prevId).hide();
							$("a","#"+options.firstId).hide();
						} else {
							$("a","#"+options.prevId).show();
							$("a","#"+options.firstId).show();
						};
					};				

					if(clicked) clearTimeout(timeout);
					if(options.auto && dir=="next" && !clicked){;
						timeout = setTimeout(function(){
							animate("next",false);
						},diff*options.speed+options.pause);
					};
			
				};
				
			};
			// init
			var timeout;
			if(options.auto){;
				timeout = setTimeout(function(){
					animate("next",false);
				},options.pause);
			};		
			
			if(options.has_thumbs) setCurrent(0);
		
			if(!options.continuous && options.controlsFade){					
				$("a","#"+options.prevId).hide();
				$("a","#"+options.firstId).hide();				
			};				
			
		});
	  
	};

})(jQuery);