var infinite_scroll_num=1;

/*** get_url_param - az URL-ből kivesz egy get paramétert ***/
$.get_url_param = function(name){
    let results = new RegExp('[\?&]' + name + '=([^&#]*)').exec(window.location.href);

    if (results === null) {
        return null;
    }

    try {
        return decodeURI(results[1]);
    } catch(e) {
        return 0;
    }
}

function load_next_content(next_link,infinite_page,click) {
    if (typeof click === "undefined") click = 0;

    $.get(next_link, function(result) {
        /*A nem vĂŠgkategĂłriĂĄban szĹąrĂŠs miatt kell ez a rĂŠsz.*/
        /*A result JSON string a nem vĂŠgkategĂłriĂĄban szĹąrĂŠs esetĂŠn is, egyĂŠbkĂŠnt plain text, ĂŠs ezĂŠrt a JSON parse error-t*/
        /*kezelni kell mindnekĂŠppen.*/
        try {
            var resultParsed = JSON.parse(result);
            result = resultParsed.product_list_content;
        } catch (e) {}

        if (result.indexOf("</html")==-1) {
            var url_state=UNAS.shop.canonical_url;
            if (url_state!="") {
                if (url_state.indexOf("?")==-1) {
                    url_state=url_state+"?";
                } else {
                    url_state=url_state+"&";
                }
                var filter_get_act=$.get_url_param('filter');
                if (filter_get_act!="" && filter_get_act!=null && filter_get_act!=undefined) url_state=url_state+"filter="+filter_get_act+"&";
                url_state=url_state+"infinite_page="+infinite_page;
                history.replaceState(pushStatData, "", url_state);
            }
            $('.page_artlist_next_loading').html('');
            $('.page_artlist_next_content').replaceWith(result);

            if (result.indexOf('page_artlist_next_link')==-1) {
                $('.page_artlist_next_loading').remove();
                $('.page_artlist_page').remove();

                if (click===1) $(".page_artlist_load_more_content").hide();
            } else {
                infinite_scroll_num=infinite_scroll_num+1;
                $('.page_artlist_page').remove();

                $('.page_artlist_next_loading').html('<div class=\"page_artlist_next_loading_'+infinite_scroll_num+'\" data-page="'+(infinite_page+1)+'"></div>');

                if (click===0) infinite_scroll_next();
                if (click===1) $(".page_artlist_load_more_content").show();
            }
        }
    });
}

function get_next_link() {
    $('.page_artlist_next_loading').html('<div class="page_content_ajax"></div>');
    var next_link=$('.page_artlist_next_link').attr('href');
    $('.page_artlist_next_link').remove();
    return next_link;
}

function infinite_scroll_next() {
    //$('.page_artlist_next_loading_'+infinite_scroll_num).waypoint( //4.0.0
    //handler:function(dir) { //4.0.0
    $('.page_artlist_next_loading_'+infinite_scroll_num).waypoint(function(dir) { //2.0.3
        var infinite_page= $('.page_artlist_next_loading_'+infinite_scroll_num).data("page");
        //this.destroy(); //4.0.0
        if ($.fn.jquery == "3.2.1"){ /* Jquery verziĂł fix, ez alatt unindentified a triggerpoint, rĂŠgiek miatt kell bele */
            if (dir == 'down' && (this.triggerPoint > 0 || Math.abs(this.triggerPoint) < ($(window).scrollTop() + $(window).height()))) load_next_content(get_next_link(), infinite_page);
        } else {
            if (dir=='down') load_next_content(get_next_link(),infinite_page);
        }
        //},offset: 'bottom-in-view'}); //4.0.0
    }, {
        offset: 'bottom-in-view',
        triggerOnce: true
    }); //2.0.3
}

function infinite_scroll_next_on_click() {
    $("body").on("click",".page_artlist_load_more_content", function () {
        var infinite_page = $('.page_artlist_next_loading_'+infinite_scroll_num).data("page");
        $(this).hide();
        load_next_content(get_next_link(),infinite_page,1);
    });
}