import { notFound } from "next/navigation";
import type { ReactNode } from "react";
import { api } from "@/lib/api";

/**
 * Existence check outside the loading boundary: a 404 from the API becomes a real HTTP 404 instead of a soft 404
 * streamed after a 200 shell. The fetch is deduplicated with the page's own call (same URL, same revalidate).
 */
export default async function SourceLayout({ params, children }: { params: Promise<{ id: string }>; children: ReactNode }) {
  const { id } = await params;
  const r = await api.source(id);
  if (!r.ok && r.status === 404) notFound();
  return <>{children}</>;
}