import { type NextRequest, NextResponse } from "next/server";
import { createServerClient } from "@supabase/ssr";

export async function proxy(request: NextRequest) {
  const supabaseUrl = process.env.NEXT_PUBLIC_SUPABASE_URL;
  const supabaseKey = process.env.NEXT_PUBLIC_SUPABASE_PUBLISHABLE_KEY;
  if (!supabaseUrl || !supabaseKey) return NextResponse.next();

  let response = NextResponse.next({ request });
  const supabase = createServerClient(supabaseUrl, supabaseKey, {
    cookies: {
      getAll: () => request.cookies.getAll(),
      setAll: (cookiesToSet) => {
        for (const { name, value } of cookiesToSet) {
          request.cookies.set(name, value);
        }
        response = NextResponse.next({ request });
        for (const { name, value, options } of cookiesToSet) {
          response.cookies.set(name, value, options);
        }
      },
    },
  });

  // Must await: getUser() triggers the token refresh, and the refreshed
  // cookies are written to `response` via the setAll callback above. Returning
  // before it resolves can drop the refreshed session cookie.
  await supabase.auth.getUser();

  return response;
}