(function($) {
    'use strict';

    var portfolio = {};
    edgtf.modules.portfolio = portfolio;

    portfolio.edgtfOnDocumentReady = edgtfOnDocumentReady;
    portfolio.edgtfOnWindowLoad = edgtfOnWindowLoad;
    portfolio.edgtfOnWindowResize = edgtfOnWindowResize;
    portfolio.edgtfOnWindowScroll = edgtfOnWindowScroll;
    portfolio.edgtfPortfolioSingleMasonry = edgtfPortfolioSingleMasonry;

    $(document).ready(edgtfOnDocumentReady);
    $(window).on('load', edgtfOnWindowLoad);
    $(window).resize(edgtfOnWindowResize);
    $(window).scroll(edgtfOnWindowScroll);
    
    /* 
        All functions to be called on $(document).ready() should be in this function
    */
    function edgtfOnDocumentReady() {
        edgtfPortfolioSingleMasonry();
    }

    /* 
        All functions to be called on $(window).load() should be in this function
    */
    function edgtfOnWindowLoad() {
        edgtfPortfolioSingleFollow().init();
    }

    /* 
        All functions to be called on $(window).resize() should be in this function
    */
    function edgtfOnWindowResize() {

    }

    /* 
        All functions to be called on $(window).scroll() should be in this function
    */
    function edgtfOnWindowScroll() {

    }



    var edgtfPortfolioSingleFollow = function() {

        var info = $('.edgtf-follow-portfolio-info .small-images.edgtf-portfolio-single-holder .edgtf-portfolio-info-holder, ' +
            '.edgtf-follow-portfolio-info .small-slider.edgtf-portfolio-single-holder .edgtf-portfolio-info-holder');

        if (info.length) {
            var infoHolder = info.parent(),
                infoHolderOffset = infoHolder.offset().top,
                infoHolderHeight = infoHolder.height(),
                mediaHolder = $('.edgtf-portfolio-media'),
                mediaHolderHeight = mediaHolder.height(),
                header = $('.header-appear, .edgtf-fixed-wrapper'),
                headerHeight = (header.length) ? header.height() : 0;
        }

        var infoHolderPosition = function() {

            if(info.length) {

                if (mediaHolderHeight > infoHolderHeight) {
                    if(edgtf.scroll > infoHolderOffset) {
                        var marginTop = edgtf.scroll - infoHolderOffset + edgtfGlobalVars.vars.edgtfAddForAdminBar + headerHeight + 20; //20 px is for styling, spacing between header and info holder
                        // if scroll is initially positioned below mediaHolderHeight
                        if(marginTop + infoHolderHeight > mediaHolderHeight){
                            marginTop = mediaHolderHeight - infoHolderHeight;
                        }
                        info.animate({
                            marginTop: marginTop
                        });
                    }
                }

            }
        };

        var recalculateInfoHolderPosition = function() {

            if (info.length) {
                if(mediaHolderHeight > infoHolderHeight) {
                    if(edgtf.scroll > infoHolderOffset) {

                        if(edgtf.scroll + headerHeight + edgtfGlobalVars.vars.edgtfAddForAdminBar + infoHolderHeight + 100 < infoHolderOffset + mediaHolderHeight) {    //70 to prevent mispositioning

                            //Calculate header height if header appears
                            if ($('.header-appear, .edgtf-fixed-wrapper').length) {
                                headerHeight = $('.header-appear, .edgtf-fixed-wrapper').height();
                            }
                            info.stop().animate({
                                marginTop: (edgtf.scroll - infoHolderOffset + edgtfGlobalVars.vars.edgtfAddForAdminBar + headerHeight + 20) //20 px is for styling, spacing between header and info holder
                            });
                            //Reset header height
                            headerHeight = 0;
                        }
                        else{
                            info.stop().animate({
                                marginTop: mediaHolderHeight - infoHolderHeight
                            });
                        }
                    } else {
                        info.stop().animate({
                            marginTop: 0
                        });
                    }
                }
            }
        };

        return {

            init : function() {

                infoHolderPosition();
                $(window).scroll(function(){
                    recalculateInfoHolderPosition();
                });

            }

        };

    };

    /**
     * Init Portfolio Single Masonry
     */
    function edgtfPortfolioSingleMasonry(){
        var gallery = $('.edgtf-portfolio-single-holder.small-masonry .edgtf-portfolio-media, .edgtf-portfolio-single-holder.big-masonry .edgtf-portfolio-media');

        if(gallery.length) {
            gallery.each(function () {
                var thisGallery = $(this);
                thisGallery.waitForImages(function () {
                    var size = thisGallery.find('.edgtf-single-masonry-grid-sizer').width();
                    edgtfPortfolioSingleResizeMasonry(size,thisGallery);
                    edgtfInitSingleMasonry(thisGallery);

                });
                $(window).resize(function(){
                    var size = thisGallery.find('.edgtf-single-masonry-grid-sizer').width();
                    edgtfPortfolioSingleResizeMasonry(size,thisGallery);
                    edgtfInitSingleMasonry(thisGallery);
                });
            });
        }
    }

    function edgtfInitSingleMasonry(container){
        container.animate({opacity: 1});
        container.isotope({
            layoutMode: 'packery',
            itemSelector: '.edgtf-portfolio-single-media',
            packery: {
                columnWidth: '.edgtf-single-masonry-grid-sizer'
            }
        });
    }


    function edgtfPortfolioSingleResizeMasonry(size,container){

        var defaultMasonryItem = container.find('.edgtf-default-masonry-item');
        var largeWidthMasonryItem = container.find('.edgtf-large-width-masonry-item');
        var largeHeightMasonryItem = container.find('.edgtf-large-height-masonry-item');
        var largeWidthHeightMasonryItem = container.find('.edgtf-large-width-height-masonry-item');

        defaultMasonryItem.css('height', size);
        largeHeightMasonryItem.css('height', Math.round(2*size));

        if(edgtf.windowWidth > 600){
            largeWidthHeightMasonryItem.css('height', Math.round(2*size));
            largeWidthMasonryItem.css('height', size);
        }else{
            largeWidthHeightMasonryItem.css('height', size);
            largeWidthMasonryItem.css('height', Math.round(size));
            largeHeightMasonryItem.css('height', Math.round(size));
        }
    }

})(jQuery);