/**

* jQuery.fn.dualSlider - Dual sliders, why not?

* Date: June 2010

*

* @author Rob Phillips http://www.robertjamesphillips.com (Front End Developer - Hugo & Cat - http://www.hugoandcat.com)

* @version 0.3

* @web http://www.hugoandcat.com/DualSlider/index.html

*

* Requirements:

* jquery.1.3.2.js - http://jquery.com/

* jquery.easing.1.3.js - http://gsgd.co.uk/sandbox/jquery/easing/

* jquery.timers-1.2.js - http://plugins.jquery.com/project/timers

*

* 0.2 - Tested and fixed for IE6+, auto loops, manual pause/play controls

*     - Disabled buttons until animation finishes - Thanks for the bug John.

* 0.3 - Now with a seamless loop, instead of that nasty rewind...was 'too much' apparently

*

**/





(function($) {



    $.fn.dualSlider = function(options) {



        // default configuration properties

        var defaults = {

            auto: true,

            autoDelay: 10000,

            easingCarousel: 'swing',

            easingDetails: 'easeOutBack',

            durationCarousel: 1000,

            durationDetails: 600

        };



        var options = $.extend(defaults, options);



        this.each(function() {



            var obj = $(this);

            var carousel;

            var carouselTotal = $(".backgrounds", obj).children().length;

            var carouselPosition = 1;

            var carouselLinkIndex = 1;

            var carouselLinks = "";

            var carouselwidth = $(obj).width();

            var detailWidth = $(".panel .details_wrapper", obj).width();

            var locked = false;

			

			if(options.auto == true)

			{

				//Creat duplicates for seamless looping

				$(".backgrounds", obj).prepend($(".backgrounds .item:last-child", obj).clone().css("margin-left", "-" + carouselwidth + "px"));

				$(".backgrounds", obj).append($(".backgrounds .item:nth-child(2)", obj).clone());



				$(".details", obj).prepend($(".details .detail:last-child", obj).clone().css("margin-left", "-" + detailWidth + "px"));

				$(".details", obj).append($(".details .detail:nth-child(2)", obj).clone());

			}

			else{

				$(".previous", obj).hide();

				$(".play, .pause", obj).hide();

			}





            //Set main background width

            $(".backgrounds", obj).css("width", ((carouselTotal+1) * carouselwidth) + 100 + "px");

            



            //Set main detail width

            $(".details_wrapper .details", obj).css("width", ((carouselTotal+1) * carouselwidth)  + "px");



            for (i = 1; i <= carouselTotal; i++) {

                (i == 1) ? carouselLinks += "<a rel=\"" + carouselLinkIndex + "\" title=\"Go to page " + carouselLinkIndex + " \" class=\"link" + carouselLinkIndex + " selected\" href=\"javascript:void(0)\">" + carouselLinkIndex + "</a>" : carouselLinks += "<a rel=\"" + carouselLinkIndex + "\"  title=\"Go to page " + carouselLinkIndex + " \" class=\"link" + carouselLinkIndex + "\" href=\"javascript:void(0)\" >" + carouselLinkIndex + "</a>";

                carouselLinkIndex++;

            }

            $("#numbers", obj).html(carouselLinks);



            //Bind carousel controls

            $(".next", obj).click(function() {

                carouselPage(parseInt(carouselPosition + 1), false);

                lock();

            });

            

            $(".previous", obj).click(function() {

                carouselPage(parseInt(carouselPosition - 1), false);

                lock();

            });



            $("#numbers a", obj).click(function() {

                carouselPage($(this).attr("rel"), false);

                lock();

            });



            $(".pause", obj).click(function() {

                autoPause();

            });

            $(".play", obj).click(function() {

                autoPlay();

            });



            function lock() {

                locked = true;

            }



            function unLock() {

                locked = false;

            }





            function checkPreviousNext() {

                $("#numbers a", obj).removeClass("selected");

                $("#numbers .link" + carouselPosition, obj).addClass("selected");

                

				if(options.auto == false)

				{

					(carouselPosition == carouselTotal) ? $(".next", obj).hide() : $(".next", obj).show();

					(carouselPosition < 2) ? $(".previous", obj).hide() : $(".previous", obj).show();

				}

            }

			

			function adjust() {



                if (carouselPosition < 1) {

                    

                    $(".backgrounds", obj).css("margin-left", (-1 * ((carouselTotal - 1) * carouselwidth)));

                    $(".details", obj).css("margin-left", (-1 * ((carouselTotal - 1) * detailWidth)));

                    carouselPosition = carouselTotal;



                }

                if (carouselPosition > carouselTotal) {

                    

                    $(".backgrounds", obj).css("margin-left", 0);

                    $(".details", obj).css("margin-left", 0);

                    carouselPosition = 1;

                }



            }



            function carouselPage(x, y) {



                if (locked != true) {



                    //console.log("New page: " + x);

                    carouselPosition = parseFloat(x);

                    //Cancel timer if manual click

                    if (y == false) autoPause();



                    var newPage = (x * carouselwidth) - carouselwidth;

                    var newPageDetail = (x * detailWidth) - detailWidth;



                    if (newPage != 0) {

                        newPage = newPage * -1;

                        newPageDetail = newPageDetail * -1;

                    }



                    $(".backgrounds", obj).animate({

                        marginLeft: newPage

                    }, {

                        "duration": options.durationCarousel, "easing": options.easingCarousel,



                        complete: function() {



                            //Now animate the details

							$(".details", obj).animate({

								marginLeft: newPageDetail

							}, {

								"duration": options.durationDetails, "easing": options.easingDetails,

								complete: function() {

									//alert("finished details");

									adjust();

									checkPreviousNext();

									unLock();

								}



							});

                            //adjust();

							//checkPreviousNext();

                            //unLock();

                        }

                    });

					

					

					

                }

                



            }



            function autoPause() {

                $(".pause", obj).hide();

                $(".play", obj).show();

                $("body").stopTime("autoScroll");

            }



            function autoPlay() {

                $(".pause", obj).show();

                $(".play", obj).hide();

                $("body").everyTime(options.autoDelay, "autoScroll", function() {

                    carouselPage(carouselPosition + 1, true);

                    lock();

                });

            }



            if (options.auto == true) {

                autoPlay();

            }



        });



    };



})(jQuery);