const server = Bun.serve({
  port: Number(process.env.PORT || 3000),
  async fetch(req) {
    const url = new URL(req.url);
    let pathname = url.pathname;
    if (pathname === "/") pathname = "/index.html";

    // Prevent path traversal
    pathname = pathname.replace(/\.\.+/g, "");

    const filePath = `.${pathname}`;
    const file = Bun.file(filePath);
    if (await file.exists()) {
      return new Response(file);
    }

    return new Response("Not found", { status: 404 });
  },
});

console.log(`Server running at http://localhost:${server.port}`);