aldo add tags to products

<script>
(function(){
var productsCount = 0;
var pageScroll = 0;
var scrollStep = 50;

function checkPage() {
    var productId = document.querySelector('span[class*="productSku"]');
    if (productId) {
        getTagsFromProductFeed([window.location.href]);
        window.adoric && adoric.trigger('pageview', {
            type: 'product',
            ids: productId.textContent
        });
    }
    var products = document.querySelector('[class*="item-card"]');
    if (products) {
        addTagsToCategories();
    }
}

function addTagsToCategories() {
    var pageData = getPageData();
    productsCount = pageData.length;
    getTagsFromProductFeed(pageData);
}

function getPageData() {
    var products = document.querySelectorAll('[class*="item-card"]');
    if (products[0]) {
        var productLinks = [];
        products.forEach(function(item) {
            var link = item.querySelector('a');
            if (link) {
                productLinks.push(link.href);
            }
        });
        return productLinks;
    }
}


function getTagsFromProductFeed(pageData) {

    fetch('https://us-east4-adoric-production.cloudfunctions.net/Support_aldo_add_tags2', {
        method: 'POST',
        body: JSON.stringify({ products: pageData })
    })
        .then(function(res) {return res.json()}).then(function(res) {
            if (res && !res.message) {
                if (window.tagsproductList) {
                    var newList = window.tagsproductList.concat(res);
                    window.tagsproductList = newList;
                } else {
                    window.tagsproductList = res;
                }
if (window.tagsproductList.length > 0) {
adoric && adoric.trigger('addTags');
}
            } else if (res && res.message) {
                console.info(res.message);
            } else {
                console.info('result error', res);
            }
        }).catch(function(error) {
console.info(error);
});

}

window.addEventListener('scroll', function() {
if ((window.pageYOffset - pageScroll) > scrollStep) {
	pageScroll = window.pageYOffset;
    var pageData = getPageData();
    if (pageData && pageData.length > productsCount) {
        var firstIndex = productsCount;
        productsCount = pageData.length;
        var newPageData = pageData.splice(firstIndex, pageData.length - 1);
        getTagsFromProductFeed(newPageData);
    }
}

});

if (document.readyState === 'loading') {
    document.addEventListener('DOMContentLoaded', checkPage);
} else {
    checkPage();
}
})();
</script>