(async function () {
  const container = document.querySelector("[data-product-loader]");
  if (!container) return;

  const handle = container.dataset.shopifyHandle;
  const language = container.dataset.language || 'fr';
  const isEnglish = language === 'en';
  const loadingState = container.querySelector(".product-loading");
  const contentState = container.querySelector(".product-content");
  const errorState = container.querySelector(".product-error");

  try {
    const cart = new ShopifyCart({
      domain: "nv7cqv-bu.myshopify.com",
      storefrontAccessToken: "dec3d35a2554384d149c72927d1cfd1b",
    });

    const product = await cart.getProductByHandle(handle);

    if (!product) {
      throw new Error("Product not found");
    }

    renderProduct(product, isEnglish);

    loadingState.style.display = "none";
    contentState.removeAttribute("style");

    setTimeout(() => {
      if (typeof Swiper !== "undefined" && product.images.edges.length > 0) {
        new Swiper(".product-gallery", {
          loop: product.images.edges.length > 1,
          navigation: {
            nextEl: ".swiper-button-next",
            prevEl: ".swiper-button-prev",
          },
          pagination: {
            el: ".swiper-pagination",
            clickable: true,
          },
          keyboard: {
            enabled: true,
          },
        });
      }
    }, 100);
  } catch (error) {
    console.error("Error loading product:", error);
    loadingState.style.display = "none";
    errorState.style.display = "block";
  }

  function renderProduct(product, isEnglish) {
    renderTitle(product, isEnglish);
    renderPrice(product);
    renderDetails(product, isEnglish);
    renderImages(product, isEnglish);
    renderVariants(product);
    setupAddToCart(product);
    renderStock(product);
  }

  function renderTitle(product, isEnglish) {
    const titleEl = document.querySelector("[data-product-title]");
    if (titleEl) {
      const title = isEnglish && product.titleEn?.value
        ? product.titleEn.value
        : product.title;
      titleEl.textContent = title;
    }
  }

  function renderPrice(product) {
    const priceEl = document.querySelector("[data-product-price]");
    if (priceEl) {
      const price = parseFloat(product.priceRange.minVariantPrice.amount);
      priceEl.textContent = price.toFixed(2) + "€";
    }
  }

  function renderDetails(product, isEnglish) {
    const detailsEl = document.querySelector("[data-product-details]");
    if (detailsEl) {
      const description = isEnglish && product.descriptionEn?.value
        ? product.descriptionEn.value
        : product.descriptionHtml || "";
      detailsEl.innerHTML = description;
    }
  }

  function renderImages(product, isEnglish) {
    const imagesContainer = document.querySelector("[data-product-images]");

    if (imagesContainer && product.images.edges.length > 0) {
      const productTitle = isEnglish && product.titleEn?.value
        ? product.titleEn.value
        : product.title;

      imagesContainer.innerHTML = product.images.edges
        .map((edge) => {
          const img = edge.node;
          return `
          <div class="swiper-slide">
            <figure>
              <img src="${img.url}"
                   alt="${img.altText || productTitle}"
                   loading="lazy" />
            </figure>
          </div>
        `;
        })
        .join("");
    }
  }

  function renderVariants(product) {
    if (product.variants.edges.length <= 1) return;

    const variantsContainer = document.querySelector("[data-product-variants]");
    const variantSelector = document.querySelector("[data-variant-selector]");

    if (!variantsContainer || !variantSelector) return;

    variantsContainer.style.display = "block";

    variantSelector.innerHTML = product.variants.edges
      .map((edge) => {
        const variant = edge.node;
        const variantId = variant.id.replace(
          "gid://shopify/ProductVariant/",
          ""
        );
        const price = parseFloat(variant.price.amount).toFixed(2) + "€";
        const availability = variant.availableForSale
          ? ""
          : " (Rupture de stock)";

        return `<option value="${variantId}" ${
          !variant.availableForSale ? "disabled" : ""
        }>
        ${variant.title} - ${price}${availability}
      </option>`;
      })
      .join("");

    variantSelector.addEventListener("change", (e) => {
      const addToCartBtn = document.querySelector("[data-shopify-add-to-cart]");
      if (addToCartBtn) {
        addToCartBtn.dataset.variantId = e.target.value;
      }
    });
  }

  function setupAddToCart(product) {
    const addToCartBtn = document.querySelector("[data-shopify-add-to-cart]");
    if (!addToCartBtn) return;

    const productId = product.id.replace("gid://shopify/Product/", "");
    addToCartBtn.dataset.productId = productId;

    const firstAvailableVariant = product.variants.edges.find(
      (e) => e.node.availableForSale
    );
    if (firstAvailableVariant) {
      const variantId = firstAvailableVariant.node.id.replace(
        "gid://shopify/ProductVariant/",
        ""
      );
      addToCartBtn.dataset.variantId = variantId;
    }
  }

  function renderStock(product) {
    const stockEl = document.querySelector("[data-product-stock]");
    if (!stockEl) return;

    const addToCartBtn = document.querySelector("[data-shopify-add-to-cart]");

    if (product.availableForSale) {
      stockEl.textContent = addToCartBtn?.dataset.textInStock || "En stock";
      stockEl.classList.add("in-stock");
    } else {
      stockEl.textContent =
        addToCartBtn?.dataset.textOutOfStock || "Rupture de stock";
      stockEl.classList.add("out-of-stock");
    }
  }
})();