/*
* 	easyAccordion 0.1 - jQuery plugin
*	written by Andrea Cima Serniotti	
*	http://www.madeincima.eu
*
*	Copyright (c) 2010 Andrea Cima Serniotti (http://www.madeincima.eu)
*	Dual licensed under the MIT (MIT-LICENSE.txt) and GPL (GPL-LICENSE.txt) licenses.
*	Built for jQuery library http://jquery.com
*/

(function (jQuery) {
    jQuery.fn.easyAccordion = function (options) {

        var defaults = {
            slideNum: true,
            autoStart: false,
            slideInterval: 3000
        };

        this.each(function () {

            var settings = jQuery.extend(defaults, options);
            jQuery(this).find('dl').addClass('easy-accordion');


            // -------- Set the variables ------------------------------------------------------------------------------

            jQuery.fn.setVariables = function () {
                dlWidth = jQuery(this).width();
                dlHeight = jQuery(this).height();
                dtWidth = jQuery(this).find('dt').outerHeight();
                if (jQuery.browser.msie) { dtWidth = $(this).find('dt').outerWidth(); }
                dtHeight = dlHeight - (jQuery(this).find('dt').outerWidth() - jQuery(this).find('dt').width());
                slideTotal = jQuery(this).find('dt').size();
                ddWidth = dlWidth - (dtWidth * slideTotal) - (jQuery(this).find('dd').outerWidth(true) - jQuery(this).find('dd').width());
                ddHeight = dlHeight - (jQuery(this).find('dd').outerHeight(true) - jQuery(this).find('dd').height());
            };
            jQuery(this).setVariables();


            // -------- Fix some weird cross-browser issues due to the CSS rotation -------------------------------------

            if (jQuery.browser.safari) { var dtTop = (dlHeight - dtWidth) / 2; var dtOffset = -dtTop;  /* Safari and Chrome */ }
            if (jQuery.browser.mozilla) { var dtTop = dlHeight - 20; var dtOffset = -20; /* FF */ }
            if (jQuery.browser.msie) { var dtTop = 0; var dtOffset = 0; /* IE */ }


            // -------- Getting things ready ------------------------------------------------------------------------------

            var mang = Array("©","H", "N", "U", "E");
            var f = 0;
            jQuery(this).find('dt').each(function () {
                jQuery(this).css({ 'width': dtHeight, 'top': dtTop, 'margin-left': dtOffset });
                if (settings.slideNum == true) {
                    jQuery('<span class="slide-number">' + mang[0 + f] + '</span>').appendTo(this);
                    if (jQuery.browser.msie) {
                        var slideNumLeft = parseInt(jQuery(this).find('.slide-number').css('left')) - 14;
                        jQuery(this).find('.slide-number').css({ 'left': slideNumLeft })
                        if (jQuery.browser.version == 6.0 || jQuery.browser.version == 7.0) {
                            jQuery(this).find('.slide-number').css({ 'bottom': 'auto' });
                        }
                        if (jQuery.browser.version == 8.0) {
                            var slideNumTop = jQuery(this).find('.slide-number').css('bottom');
                            var slideNumTopVal = parseInt(slideNumTop) + parseInt(jQuery(this).css('padding-top')) - 12;
                            jQuery(this).find('.slide-number').css({ 'bottom': slideNumTopVal });
                        }
                    } else {
                        var slideNumTop = jQuery(this).find('.slide-number').css('bottom');
                        var slideNumTopVal = parseInt(slideNumTop) + parseInt(jQuery(this).css('padding-top'));
                        jQuery(this).find('.slide-number').css({ 'bottom': slideNumTopVal });
                    }
                }
                f = f + 1;
            });

            if (jQuery(this).find('.active').size()) {
                jQuery(this).find('.active').next('dd').addClass('active');
            } else {
                jQuery(this).find('dt:first').addClass('active').next('dd').addClass('active');
            }

            jQuery(this).find('dt:first').css({ 'left': '0' }).next().css({ 'left': dtWidth });
            jQuery(this).find('dd').css({ 'width': ddWidth, 'height': ddHeight });


            // -------- Functions ------------------------------------------------------------------------------

            jQuery.fn.findActiveSlide = function () {
                var i = 1;
                this.find('dt').each(function () {
                    if (jQuery(this).hasClass('active')) {
                        activeID = i; // Active slide
                    } else if (jQuery(this).hasClass('no-more-active')) {
                        noMoreActiveID = i; // No more active slide
                    }
                    i = i + 1;
                });
            };

            jQuery.fn.calculateSlidePos = function () {
                var u = 2;
                jQuery(this).find('dt').not(':first').each(function () {
                    var activeDtPos = dtWidth * activeID;
                    if (u <= activeID) {
                        var leftDtPos = dtWidth * (u - 1);
                        jQuery(this).animate({ 'left': leftDtPos });
                        if (u < activeID) { // If the item sits to the left of the active element
                            jQuery(this).next().css({ 'left': leftDtPos + dtWidth });
                        } else { // If the item is the active one
                            jQuery(this).next().animate({ 'left': activeDtPos });
                        }
                    } else {
                        var rightDtPos = dlWidth - (dtWidth * (slideTotal - u + 1));
                        jQuery(this).animate({ 'left': rightDtPos });
                        var rightDdPos = rightDtPos + dtWidth;
                        jQuery(this).next().animate({ 'left': rightDdPos });
                    }
                    u = u + 1;
                });
                setTimeout(function () {
                    jQuery('.easy-accordion').find('dd').not('.active').each(function () {
                        jQuery(this).css({ 'display': 'none' });
                    });
                }, 400);

            };

            jQuery.fn.activateSlide = function () {
                this.parent('dl').setVariables();
                this.parent('dl').find('dd').css({ 'display': 'block' });
                this.parent('dl').find('dd.plus').removeClass('plus');
                this.parent('dl').find('.no-more-active').removeClass('no-more-active');
                this.parent('dl').find('.active').removeClass('active').addClass('no-more-active');
                this.addClass('active').next().addClass('active');
                this.parent('dl').findActiveSlide();
                if (activeID < noMoreActiveID) {
                    this.parent('dl').find('dd.no-more-active').addClass('plus');
                }
                this.parent('dl').calculateSlidePos();
            };

            jQuery.fn.rotateSlides = function (slideInterval, timerInstance) {
                var accordianInstance = jQuery(this);
                timerInstance.value = setTimeout(function () { accordianInstance.rotateSlides(slideInterval, timerInstance); }, slideInterval);
                jQuery(this).findActiveSlide();
                var totalSlides = jQuery(this).find('dt').size();
                var activeSlide = activeID;
                var newSlide = activeSlide + 1;
                if (newSlide > totalSlides) newSlide = 1;
                jQuery(this).find('dt:eq(' + (newSlide - 1) + ')').activateSlide(); // activate the new slide
            }


            // -------- Let's do it! ------------------------------------------------------------------------------

            function trackerObject() { this.value = null }
            var timerInstance = new trackerObject();

            jQuery(this).findActiveSlide();
            jQuery(this).calculateSlidePos();

            if (settings.autoStart == true) {
                var accordianInstance = jQuery(this);
                var interval = parseInt(settings.slideInterval);
                timerInstance.value = setTimeout(function () {
                    accordianInstance.rotateSlides(interval, timerInstance);
                }, interval);
            }

            jQuery(this).find('dt').not('active').click(function () {
                jQuery(this).activateSlide();
                clearTimeout(timerInstance.value);
            });

            if (!(jQuery.browser.msie && jQuery.browser.version == 6.0)) {
                jQuery('dt').hover(function () {
                    jQuery(this).addClass('hover');
                }, function () {
                    jQuery(this).removeClass('hover');
                });
            }
        });
    };
})(jQuery);