import type { NextConfig } from "next";

// The marketing landing is served as static files from /public (ported verbatim
// from lynkeduppro-landing). These rewrites reproduce the landing's vercel.json
// clean-URL routing: "/" is the React marketing home, "/1".."/19" are the static
// pages under /public/page. `beforeFiles` lets them override the app router's "/"
// (which otherwise redirects to /portal/login).
const landingRewrites: { source: string; destination: string }[] = [
  { source: "/", destination: "/index.html" },
  { source: "/thanks", destination: "/thanks.html" },
  { source: "/1", destination: "/page/index.html" },
  // "/2".."/19" -> /public/page/<n>.html
  ...Array.from({ length: 18 }, (_, i) => i + 2).map((n) => ({
    source: `/${n}`,
    destination: `/page/${n}.html`,
  })),
];

const nextConfig: NextConfig = {
  // The SDK ships ESM/TS; let Next transpile it.
  transpilePackages: ["@abe-kap/appshell-sdk"],
  async rewrites() {
    // The browser calls the Shell BFF same-origin under /shell (so the HttpOnly
    // session cookie flows). We deliberately use /shell (NOT /api) to avoid
    // clobbering the /api/* route handlers (geo, and the founder checkout).
    const bff = process.env.BFF_ORIGIN ?? "http://localhost:4000";
    return {
      beforeFiles: landingRewrites,
      afterFiles: [{ source: "/shell/:path*", destination: `${bff}/api/:path*` }],
      fallback: [],
    };
  },
};

export default nextConfig;