/**
 * @author IEChernov
 * @copyright RolfImport 
 * @extends jquery
 */


jQuery.fn.carsflow = function(startInit,activeInit){

	var carsFlow = jQuery(this);
	var ItemCarsFlow = carsFlow.find('.item');
	
	var igox = [];
	var activenow = 0;
	var easynig = 'swing';
	var iw = [];
	var Dy = [];
	var Recurs  = false;
	var itime = 1000;
	var iwidth = [];
	var firsttime = true;
	var exceptcar = false;
	var idtime = 0;
	var select = false;
	var carSelect = false;
	var direct = -1;
	var GlobalWidth = parseInt(carsFlow.width() / 2);
	
	jQuery(window).resize(function(){
		GlobalWidth =  parseInt(carsFlow.width() / 2);
		
	});
	
	var imax = ItemCarsFlow.length;
	var ileft = parseInt(imax / 2);
	var iright = imax - ileft;
	ItemCarsFlow.each(function(index){
		
		var width = parseInt(jQuery(this).attr('maxw'));
		
		jQuery(this).find('.info').css('left', ((width - 600) / 2));
		iwidth[index] = width;	
		
		jQuery(this).css('width',parseInt(iwidth[index] / 2));
		jQuery(this).data('n',index);
		
	});
 
	
	function igo(i,active){
	
	if (Recurs) {easynig = 'linear';				
				if (direct < 0) {i = i - 1;}
				if (direct > 0) {i = i + 1;}				
				itime = 0.05;
				if (Math.abs(direct) > 1) {
					itime = 0.1;
				}
				
			} else {
				
				easynig = 'swing';
				itime = 1000;
			}
	
	
	
	if (i < 0) { i = imax + i;}
	if (i >= imax) { i = i - imax;}
	
	ItemCarsFlow.stop();
	
	var realJ = 0;
	var intent = 0;
	
	for(j=i-ileft;j<i+iright;j++){
		realJ = j;
		if (j<0) {realJ = imax + j;}
		if (j>=imax) {realJ = j - imax;}
		
		igo[realJ] = intent;
	
		
		
		if ((realJ == i) && active){
				iw[realJ]=iwidth[realJ] ;
				Dy[realJ] = 0;
				intent += iw[realJ]  + 100;
				} else {
				Dy[realJ] = 75;
				iw[realJ]=parseInt(iwidth[realJ] / 2);
				intent += iw[realJ]  + 100;
		}
		
	
	} 
	
		var Dx = igo[i] - ((1000-iw[i])/2);
		
		carsFlow.find('.info').hide();	
		
				
			if (firsttime) {
			firsttime = false;
				
				ItemCarsFlow.each(function(index){
					jQuery(this).css({left:(igo[index] - Dx),width:iw[index],bottom:Dy[index]});
						if ((index == i) && active) {
							jQuery(this).find('.info').fadeIn(50);									
						}
						
						
						if (index == (imax - 1))  {
							activenow = i;												
							if (Recurs) {igo(activenow,false);}
						}
					
							
			
				});
			
			} else{
		if (Recurs) {
			
				itime = parseInt(Math.abs(parseInt(ItemCarsFlow.eq(i).css('left')) - (igo[i] - Dx)) / itime);					
		}
		
		
		ItemCarsFlow.each(function(index){
	
			
			
			if ( Math.abs(parseInt($(this).css('left')) - (igo[index] - Dx)) > 1200) {
				var newX = igo[index] - Dx;
				if (newX > 0) {jQuery(this).css({left:newX + 500,width:iw[index],bottom:Dy[index]});} 
				else{ jQuery(this).css({left:newX - 500,width:iw[index],bottom:Dy[index]});}
				
			}
			
			$(this).animate({left:(igo[index] - Dx),width:iw[index],bottom:Dy[index]},itime,easynig,function(){
				
				if ((index == i) && active) {
					
					idtime = setTimeout(function() {
						select = false;
					}, 3000);
					
					jQuery(this).css('overflow','visible');
					jQuery(this).find('.info').fadeIn(50);			
				}
				if (index == (imax - 1))  {
					activenow = i;
					carSelect=false;
					if (exceptcar) {Recurs = true; exceptcar = false;}
					if (Recurs) {
					
					igo(activenow,false);}					
				}			
			
			});
		
		});
		
		}
		
		
		
		
		
}
	Recurs  = false;
	igo(startInit,activeInit);
	
	ItemCarsFlow.click(function(){
		if (carSelect) {return false;}		
		clearInterval(idtime);		
		clickI = $(this).data('n');
		if ($(this).find('.info').css('display') == 'none') {
				Recurs = false;
				select = true;
				carSelect = true;
				igo(clickI,true);	
				return false;
		} 
	});
		
	
	
	ItemCarsFlow.mousemove(function() {
	
		if (jQuery(this).data('n') == activenow) {return false;}
	
	});
	
	
	$("div.leftcar").click(function(){
				direct = 0;
				i = (activenow - 1);
				if (i < 0) { i = imax + i;}
				ItemCarsFlow.eq(i).trigger('click');
	});
	
	$("div.rightcar").click(function(){
				direct = 0;
				i = (activenow + 1);
				if (i >= imax) { i = i - imax;}
				ItemCarsFlow.eq(i).trigger('click');
	
	});
	
	
	carsFlow.mouseleave(function(){
	
		$("div.leftcar").hide();
		$("div.rightcar").hide();
		direct = 0;	
		Recurs = false;
	});
	
	
	carsFlow.mousemove(function(event) {
		
			
			
			
			GlobalX =  GlobalWidth - event.pageX;			
			
			if ((GlobalX < 125) && (GlobalX > -125)){
				$("div.leftcar").hide();
				$("div.rightcar").hide();
			}else	{		
			if (GlobalX < 0){
				$("div.leftcar").hide();
				$("div.rightcar").show();
			}else{
				$("div.leftcar").show();
				$("div.rightcar").hide();
			}}
			
			
			
			if ((select) || (carSelect)) {return false;}
			
			
			
		
		
	
			
			
			
			
	
	
		if (GlobalX > 500) {
			
			if (direct != -2) {
				direct = -2;	
				Recurs = true;
				igo(activenow,false);
			}			
			direct = -2;		
		} else
		
		if (GlobalX >= 350) {
			
			if (direct != -1) {
				direct = -1;	
				Recurs = true;
				igo(activenow,false);
			}			
			direct = -1;		
		} else
		
		if (GlobalX < -500) {
			
			if (direct != 2) {
				direct = 2;	
				Recurs = true;
				igo(activenow,false);
			}			
			direct = 2;		
		} else
				
		if (GlobalX <= -350) {
			
			if (direct != 1) {
				direct = 1;	
				Recurs = true;
				igo(activenow,false);
			}			
			direct = 1;		
		} 	else
				
		 {
			
			
				direct = 0;	
				Recurs = false;			
			
			
		} 
		
			
	});
	
	

	
};