/**
 * Shared JSON response helpers for the The Nook license API routes.
 * Underscore-prefixed file — not a route.
 */

export function json(data: unknown, status = 200): Response {
  return new Response(JSON.stringify(data), {
    status,
    headers: { "Content-Type": "application/json" }
  });
}

export function error(message: string, status: number): Response {
  return json({ error: message }, status);
}

const UUID_RE = /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/i;

export function isUuid(value: unknown): value is string {
  return typeof value === "string" && UUID_RE.test(value);
}