/** @type {import('next').NextConfig} */
// Normalise the backend base URL so a value supplied without a scheme (e.g.
// "my-app.hf.space") or with a trailing slash can't break the rewrite, which
// requires a destination starting with "/", "http://", or "https://".
function normalizeApiBase(raw) {
  const v = (raw || "").trim();
  if (!v) return "http://localhost:8000";
  const withScheme = /^https?:\/\//i.test(v) ? v : `https://${v}`;
  return withScheme.replace(/\/+$/, "");
}
const API = normalizeApiBase(process.env.NEXT_PUBLIC_API_BASE);

const nextConfig = {
  reactStrictMode: true,
  async rewrites() {
    // Proxy API + page images to the FastAPI backend during dev so the
    // browser hits a single origin (no CORS surprises for image tags).
    return [{ source: "/api/:path*", destination: `${API}/api/:path*` }];
  },
};

export default nextConfig;