export default {
  async fetch(request, env) {
    const url = new URL(request.url);

    // ================================================================
    // RUTA 1: OBTENER PRODUCTOS (PRINTFUL + CLOUDINARY)
    // ================================================================
    if (url.pathname === "/api/products" && request.method === "GET") {
      try {
        const PRINTFUL_KEY = env.PRINTFUL_API_KEY;
        
        if (!PRINTFUL_KEY) {
          return new Response(JSON.stringify({ error: "Falta configurar PRINTFUL_API_KEY en Cloudflare" }), {
            status: 500, headers: { "Content-Type": "application/json" }
          });
        }

        // Simulamos la respuesta de la estructura idéntica de la API de Printful
        const mockPrintfulProducts = [
          { id: "sync-variant-101", name: "Camiseta Cyberpunk Oversized", retail_price: "29.99", thumbnail_name: "cyberpunk_tee.jpg" },
          { id: "sync-variant-102", name: "Sudadera Minimalist Black", retail_price: "49.99", thumbnail_name: "minimal_hoodie.jpg" },
          { id: "sync-variant-103", name: "Gorra de Edición Limitada LOD", retail_price: "19.99", thumbnail_name: "limited_cap.jpg" }
        ];

        const CLOUDINARY_CLOUD = env.CLOUDINARY_CLOUD_NAME || "demo";

        // Mapeamos los datos inyectando la optimización dinámica del CDN de Cloudinary al vuelo
        const catalogoUnificado = mockPrintfulProducts.map(prod => {
          return {
            id: prod.id,
            nombre: prod.name,
            precio: prod.retail_price,
            imagen_cloudinary: `https://res.cloudinary.com/${CLOUDINARY_CLOUD}/image/upload/f_auto,q_auto,w_600/${prod.thumbnail_name}`
          };
        });

        return new Response(JSON.stringify(catalogoUnificado), {
          headers: { "Content-Type": "application/json" }
        });

      } catch (err) {
        return new Response(JSON.stringify({ error: "Fallo en el servidor de la tienda" }), { status: 500 });
      }
    }

    // ================================================================
    // RUTA 2: PASARELA DE PAGO (NEWPAYMENTS)
    // ================================================================
    if (url.pathname === "/api/checkout" && request.method === "POST") {
      try {
        const body = await request.json();
        const productId = body.id;
        const NEWPAYMENTS_SECRET = env.NEWPAYMENTS_API_KEY;

        // Aquí se llamaría de forma segura a Newpayments usando NEWPAYMENTS_SECRET
        let urlPagoSimulada = "https://www.newpayments.com/checkout/demo-link";
        
        if (productId === "sync-variant-101") urlPagoSimulada = "https://www.newpayments.com/link/pago-cyberpunk";
        if (productId === "sync-variant-102") urlPagoSimulada = "https://www.newpayments.com/link/pago-minimal-hoodie";

        return new Response(JSON.stringify({ url_pago: urlPagoSimulada }), {
          headers: { "Content-Type": "application/json" }
        });

      } catch (err) {
        return new Response(JSON.stringify({ error: "Error al conectar con Newpayments" }), { status: 500 });
      }
    }

    // Servir la interfaz estática si no se solicita una ruta API
    return env.ASSETS.fetch(request);
  }
};