Shopify - Perform shipping costs test with Varify.io

				
					const varifyPriceFilterSelector = '#variant-selects-template--25418368778580__main > div:nth-child(1)';
const priceClass = 'price__regular';
const cardClass = 'grid__item';
const desiredVariantOption = 'Variation'; // Variation or Control

// Only URLs – variant IDs no longer required
const productURLs = [
    'https://demo-shop.com/products/article1',
    'https://demo-shop.com/products/article2',
    'https://demo-shop.com/products/article3'
];

const updatedHandles = new Set();

function hidePriceFilterOnMatchingProductPages() {
    const currentURL = window.location.href;
    const matchesProductPage = productURLs.some(url => currentURL.includes(url));

    if (matchesProductPage && varifyPriceFilterSelector) {
        const style = document.createElement('style');
        style.textContent = `
      ${varifyPriceFilterSelector} {
        display: none !important;
      }
    `;
        document.head.appendChild(style);
        console.log('Hiding price filter on matching product page:', varifyPriceFilterSelector);
    }
}

hidePriceFilterOnMatchingProductPages();

function formatPrice(priceInCents) {
    return (priceInCents / 100).toFixed(2);
}

function extractHandleFromHref(href) {
    const match = href.match(/\/products\/([^/?#]+)/);
    return match ? match[1] : null;
}

function extractHandlesFromURLs(urls) {
    return urls.map(extractHandleFromHref).filter(Boolean);
}

function updateProducts(retryCount = 0) {
    const productCards = document.querySelectorAll(`.${cardClass}`);
    const allowedHandles = extractHandlesFromURLs(productURLs);

    if (productCards.length === 0 && retryCount < 5) {
        console.warn(`No product cards found – retrying (${retryCount + 1}/5)`);
        setTimeout(() => updateProducts(retryCount + 1), 300);
        return;
    }

    allowedHandles.forEach((handle) => {
        if (updatedHandles.has(handle)) return;

        fetch(`/products/${handle}.js`)
            .then(response => response.json())
            .then(product => {
                const targetVariant = product.variants.find(v => v.option1 === desiredVariantOption);
                if (!targetVariant) {
                    console.warn(`No variant found with option1 === '${desiredVariantOption}' for "${handle}"`);
                    return;
                }

                let updated = false;

                productCards.forEach(card => {
                    const link = card.querySelector('a[href*="/products/"]');
                    if (!link) return;

                    const href = link.getAttribute('href');
                    const linkHandle = extractHandleFromHref(href);

                    if (linkHandle === handle) {
                        const priceElement = card.querySelector(`.${priceClass}`);
                        if (priceElement) {
                            const oldPrice = priceElement.textContent.trim();
                            const newPrice = formatPrice(targetVariant.price);
                            priceElement.textContent = `${newPrice}`;

                            console.log(`"${product.title}" – Price updated: ${oldPrice} → €${newPrice}`);
                        }

                        const imageElement = card.querySelector('.product-card-image img');
                        if (imageElement && targetVariant.featured_image) {
                            imageElement.src = targetVariant.featured_image.src;
                            console.log(`Image updated for "${product.title}".`);
                        }

                        // Update link with ?variant=...
                        const url = new URL(link.href, window.location.origin);
                        url.searchParams.set('variant', targetVariant.id);
                        link.href = url.toString();

                        updated = true;
                    }
                });

                if (updated) {
                    updatedHandles.add(handle);
                }
            })
            .catch(error => {
                console.error(`Error loading product "${handle}":`, error);
            });
    });
}

// Optional: Set filter selection on the PDP
function setPriceFilter() {
    const selectElement = document.querySelector(`${varifyPriceFilterSelector} select`);
    if (selectElement) {
        selectElement.value = desiredVariantOption;
        selectElement.dispatchEvent(new Event('input', { bubbles: true }));
        selectElement.dispatchEvent(new Event('change', { bubbles: true }));
    }
}

// Initial call after DOM ready
window.varify.helpers.onDomLoaded(() => {
    setPriceFilter();
    updateProducts();
});

// Optional: Repeat on DOM changes
window.varify.helpers.onDomChanged(() => {
    updateProducts();
});