(function () {
  console.log('[view_item] script start');

  const scripts = document.querySelectorAll('script[type="application/ld+json"]');
  console.log('[view_item] ld+json scripts found:', scripts.length);
  if (!scripts.length) return;

  function isProduct(obj) {
    if (!obj) return false;
    const t = obj['@type'];
    return t === 'Product' || (Array.isArray(t) && t.includes('Product'));
  }

  let product = null;

  for (const s of scripts) {
    let json;
    try {
      json = JSON.parse(s.textContent.trim());
    } catch (e) {
      console.warn('[view_item] JSON parse error', e);
      continue;
    }

    const arr = Array.isArray(json) ? json : [json];

    for (const obj of arr) {
      if (isProduct(obj)) {
        product = obj;
        break;
      }

      if (obj && Array.isArray(obj['@graph'])) {
        const p = obj['@graph'].find(isProduct);
        if (p) {
          product = p;
          break;
        }
      }
    }
    if (product) break;
  }

  console.log('[view_item] product found:', product);

  if (!product) return;

  const name = product.name || document.title || '';
  const sku  = product.sku || product.productID || product.mpn || location.pathname;

  const offersRaw = product.offers || {};
  const offer = Array.isArray(offersRaw) ? (offersRaw[0] || {}) : offersRaw;

  const currency = 'EUR';
  const priceStr = (offer.price ?? '0').toString().replace(/,/g, '');
  const price = Number(priceStr) || 0;

  console.log('[view_item] parsed values', {
    name, sku, price, currency
  });

  window.dataLayer = window.dataLayer || [];

  window.dataLayer.push({ ecommerce: null });

  const eventObj = {
    event: "view_item",
    ecommerce: {
      currency: currency,
      value: price,
      items: [{
        item_id: String(sku),
        item_name: String(name),
        price: price,
        quantity: 1
      }]
    }
  };

  console.log('[view_item] pushing to dataLayer', eventObj);

  window.dataLayer.push(eventObj);
})();