import Link from "next/link";
import { cookies } from "next/headers";

const API_URL = process.env.NEXT_PUBLIC_API_URL || "http://localhost:8000/api";

interface Product {
  slug: string;
  name: string;
  description: string;
  category: string;
  product_type: string;
  image_url: string;
  base_price: number;
}

function getMockupType(productType: string): string {
  if (productType.includes("shirt") || productType.includes("tee") || productType.includes("hoodie")) return "shirt";
  if (productType.includes("sticker")) return "sticker";
  if (productType.includes("print")) return "print";
  return "shirt";
}

async function getProducts(spaceId: string): Promise<Product[]> {
  try {
    const params = new URLSearchParams();
    if (spaceId && spaceId !== "default") {
      params.set("space", spaceId);
    }
    const url = `${API_URL}/products${params.toString() ? `?${params}` : ""}`;
    const res = await fetch(url, { next: { revalidate: 3600 } });
    if (!res.ok) return [];
    return res.json();
  } catch {
    return [];
  }
}

export default async function ProductsPage() {
  const cookieStore = await cookies();
  const spaceId = cookieStore.get("space_id")?.value || "default";
  const products = await getProducts(spaceId);

  return (
    <div className="min-h-screen bg-background">
      <div className="container mx-auto px-4 py-12">
        <div className="mb-12">
          <h1 className="text-4xl font-bold tracking-tight">Products</h1>
          <p className="mt-2 text-lg text-muted-foreground">
            Print-on-demand merch — designed by the community, fulfilled by Printful.
          </p>
        </div>

        {products.length === 0 ? (
          <div className="flex flex-col items-center justify-center py-24 text-center">
            <div className="rounded-full bg-muted p-6 mb-6">
              <svg className="h-12 w-12 text-muted-foreground" fill="none" viewBox="0 0 24 24" stroke="currentColor">
                <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={1.5} d="M20 7l-8-4-8 4m16 0l-8 4m8-4v10l-8 4m0-10L4 7m8 4v10M4 7v10l8 4" />
              </svg>
            </div>
            <h2 className="text-xl font-semibold mb-2">No products yet</h2>
            <p className="text-muted-foreground max-w-md">
              New designs are being added. Check back soon or create your own.
            </p>
            <Link
              href="/upload"
              className="mt-6 inline-flex items-center rounded-md bg-primary px-6 py-3 text-sm font-medium text-primary-foreground hover:bg-primary/90 transition-colors"
            >
              Upload a Design
            </Link>
          </div>
        ) : (
          <div className="grid grid-cols-1 sm:grid-cols-2 lg:grid-cols-3 gap-8">
            {products.map((product) => (
              <Link
                key={product.slug}
                href={`/products/${product.slug}`}
                className="group block"
              >
                <div className="relative overflow-hidden rounded-xl border bg-card shadow-sm transition-all duration-300 hover:shadow-xl hover:-translate-y-1">
                  {/* Product image */}
                  <div className="aspect-square bg-muted relative overflow-hidden">
                    <img
                      src={`${API_URL}/designs/${product.slug}/mockup?type=${getMockupType(product.product_type)}`}
                      alt={product.name}
                      className="object-cover w-full h-full transition-transform duration-500 group-hover:scale-105"
                      loading="lazy"
                    />
                    {/* Category badge */}
                    <div className="absolute top-3 left-3">
                      <span className="inline-flex items-center rounded-full bg-black/60 backdrop-blur-sm px-3 py-1 text-xs font-medium text-white capitalize">
                        {product.product_type}
                      </span>
                    </div>
                  </div>

                  {/* Product info */}
                  <div className="p-5">
                    <h3 className="font-semibold text-lg leading-tight group-hover:text-primary transition-colors">
                      {product.name}
                    </h3>
                    <p className="mt-1.5 text-sm text-muted-foreground line-clamp-2">
                      {product.description}
                    </p>
                    <div className="mt-4 flex items-center justify-between">
                      <span className="text-xl font-bold">
                        ${product.base_price.toFixed(2)}
                      </span>
                      <span className="text-xs font-medium text-primary opacity-0 group-hover:opacity-100 transition-opacity">
                        View Details →
                      </span>
                    </div>
                  </div>
                </div>
              </Link>
            ))}
          </div>
        )}
      </div>
    </div>
  );
}