(function($)
{
    "use strict";

    // -------------------------------------------------------------------------------------------
    // Ligthbox activation
    // -------------------------------------------------------------------------------------------

    $.avia_utilities = $.avia_utilities || {};

    $.avia_utilities.av_popup = {
            type:               'image',
            mainClass:          'avia-popup mfp-zoom-in',
            tLoading:           '',
            tClose:             '',
            removalDelay:       300, //delay removal by X to allow out-animation
            closeBtnInside:     true,
            closeOnContentClick:false,
            midClick:           true,
            autoFocusLast:      false, // false, prevents issues with accordion slider
            fixedContentPos:    $('html').hasClass('av-default-lightbox-no-scroll'), // allows scrolling when lightbox is open but also removes any jumping because of scrollbar removal
            iframe: {
                patterns: {
                    youtube: {
                        index: 'youtube.com/watch',
                        id: function(url) {

                            //fetch the id
                            var m = url.match(/[\\?\\&]v=([^\\?\\&]+)/),
                                id,
                                params;

                            if( !m || !m[1] )
                            {
                                return null;
                            }

                            id = m[1];

                            //fetch params
                            params = url.split('/watch');
                            params = params[1];

                            return id + params;
                        },
                        src: '//www.youtube.com/embed/%id%'
                    },
                    vimeo: {
                        index: 'vimeo.com/',
                        id: function(url) {

                            // fetch the id
                            // https://kriesi.at/support/topic/vimeo-popup-inline-text-anchor-link-does-not-work/
                            var m = url.match(/(https?:\/\/)?(www.)?(player.)?vimeo.com\/([a-z]*\/)*([0-9]{6,11})\/(\w{6,11})[?]?.*/), id, params;
                            if( !m || !m[5] )
                            {
                                return null;
                            }

                            var id2 = !m[6] ? "" : "/" + m[6];
                            id = m[5];

                            //fetch params
                            params = url.split('?');
                            params = params[1];

                            return id + id2 + '?' + params;
                        },
                        src: '//player.vimeo.com/video/%id%'
                    }
                }
            },
            image: {
                titleSrc: function( item )
                        {
                            var title = item.el.attr('title');
                            if( ! title )
                            {
                                title = item.el.find('img').attr('title');
                            }
                            if( ! title )
                            {
                                title = item.el.parent().next( '.wp-caption-text' ).html();
                            }
                            if( typeof title != "undefined" )
                            {
                                return title;
                            }

                            if( ! $( 'body' ).hasClass( 'avia-mfp-show-alt-text' ) )
                            {
                                return '';
                            }

                            //  @since 4.7.6.2 check for alt attribute
                            var alt = item.el.attr('alt');
                            if( typeof alt != "undefined" )
                            {
                                return alt;
                            }

                            alt = item.el.find('img').attr('alt');
                            if( typeof alt != "undefined" )
                            {
                                return alt;
                            }

                            return '';
                        }
            },

            gallery: {
                // delegate:    options.autolinkElements,
                tPrev:      '',
                tNext:      '',
                tCounter:   '%curr% / %total%',
                enabled:    true,
                preload:    [1,1] // Will preload 1 - before current, and 1 after the current image
            },

            callbacks:
            {
                beforeOpen: function()
                {
                    //add custom css class for different styling
                    if( this.st.el && this.st.el.data('fixed-content') )
                    {
                        this.fixedContentPos = true;
                    }
                },

                open: function()
                {
                    //overwrite default prev + next function. Add timeout for  crossfade animation
                    $.magnificPopup.instance.next = function()
                    {
                        var self = this;
                        self.wrap.removeClass('mfp-image-loaded');
                        setTimeout(function() { $.magnificPopup.proto.next.call(self); }, 120);
                    };

                    $.magnificPopup.instance.prev = function()
                    {
                        var self = this;
                        self.wrap.removeClass('mfp-image-loaded');
                        setTimeout(function() { $.magnificPopup.proto.prev.call(self); }, 120);
                    };

                    //add custom css class for different styling
                    if( this.st.el && this.st.el.data('av-extra-class') )
                    {
                        this.wrap.addClass( this.currItem.el.data('av-extra-class') );
                    }

                    this.wrap.avia_swipe_trigger( {prev:'.mfp-arrow-left', next:'.mfp-arrow-right'} );
                },

                markupParse: function( template, values, item )
                {
                    if( typeof values.img_replaceWith == 'undefined' || typeof values.img_replaceWith.length == 'undefined' || values.img_replaceWith.length == 0 )
                    {
                        return;
                    }

                    var img = $( values.img_replaceWith[0] );

                    if( typeof img.attr( 'alt' ) != 'undefined' )
                    {
                        return;
                    }

                    var alt = item.el.attr( 'alt' );
                    if( typeof alt == "undefined" )
                    {
                        alt = item.el.find('img').attr('alt');
                    }

                    if( typeof alt != "undefined" )
                    {
                        img.attr( 'alt', alt );
                    }

                    return;
                },

                imageLoadComplete: function()
                {
                    var self = this;
                    setTimeout(function() { self.wrap.addClass('mfp-image-loaded'); }, 16);
                },
                change: function()
                {
                    if( this.currItem.el )
                    {
                        var current = this.currItem.el;

                        this.content.find( '.av-extra-modal-content, .av-extra-modal-markup' ).remove();

                        if( current.data('av-extra-content') )
                        {
                            var extra = current.data('av-extra-content');
                            this.content.append( "<div class='av-extra-modal-content'>" + extra + "</div>" );
                        }

                        if( current.data('av-extra-markup') )
                        {
                            var markup = current.data('av-extra-markup');
                            this.wrap.append( "<div class='av-extra-modal-markup'>" + markup + "</div>"  );
                        }
                    }
                }
            }
        };

    $.fn.avia_activate_lightbox = function(variables)
    {

        var defaults = {
            groups          :   ['.avia-slideshow', '.avia-gallery', '.av-horizontal-gallery', '.av-instagram-pics', '.portfolio-preview-image', '.portfolio-preview-content', '.isotope', '.post-entry', '.sidebar', '#main', '.main_menu', '.woocommerce-product-gallery'],
            autolinkElements:   'a.lightbox, a[rel^="prettyPhoto"], a[rel^="lightbox"], a[href$=jpg], a[href$=webp], a[href$=png], a[href$=gif], a[href$=jpeg], a[href*=".jpg?"], a[href*=".png?"], a[href*=".gif?"], a[href*=".jpeg?"], a[href$=".mov"] , a[href$=".swf"] , a:regex(href, .vimeo\.com/[0-9]) , a[href*="youtube.com/watch"] , a[href*="screenr.com"], a[href*="iframe=true"]',
            videoElements   :   'a[href$=".mov"] , a[href$=".swf"] , a:regex(href, .vimeo\.com/[0-9]) , a[href*="youtube.com/watch"] , a[href*="screenr.com"], a[href*="iframe=true"]',
            exclude         :   '.noLightbox, .noLightbox a, .fakeLightbox, .lightbox-added, a[href*="dropbox.com"]'
        },

        options = $.extend({}, defaults, variables),

        active = ! $('html').is('.av-custom-lightbox');

        if( ! active)
        {
            return this;
        }

        return this.each(function()
        {
            var container   = $(this),
                videos      = $(options.videoElements, this).not(options.exclude).addClass('mfp-iframe'), /*necessary class for the correct lightbox markup*/
                ajaxed      = ! container.is('body') && ! container.is('.ajax_slide');
                for( var i = 0; i < options.groups.length; i++ )
                {
                    container.find(options.groups[i]).each(function()
                    {
                        var links = $(options.autolinkElements, this);

                        if( ajaxed )
                        {
                            links.removeClass('lightbox-added');
                        }

                        links.not(options.exclude).addClass('lightbox-added').magnificPopup($.avia_utilities.av_popup);
                    });
                }

        });
    };
})(jQuery);