import { NextResponse, type NextRequest } from "next/server";

export async function POST(request: NextRequest): Promise<NextResponse> {
  // Progressive enhancement: an HTML form post (Accept: text/html) gets a
  // 303 redirect back to /sign-in; a fetch() call (Accept: application/json)
  // gets the original JSON response.
  const wantsHtml = request.headers.get("accept")?.includes("text/html") ?? false;

  if (wantsHtml) {
    const res = NextResponse.redirect(new URL("/sign-in", request.url), 303);
    res.cookies.delete("rd-dev-session");
    return res;
  }

  const res = NextResponse.json({ ok: true });
  res.cookies.delete("rd-dev-session");
  return res;
}