export async function getYoutubeSubscriberCount(): Promise<number | null> {
  const apiKey = process.env.YOUTUBE_API_KEY;
  const channelId = process.env.YOUTUBE_CHANNEL_ID;
  if (!apiKey || !channelId) return null;

  try {
    const res = await fetch(
      `https://www.googleapis.com/youtube/v3/channels?part=statistics&id=${encodeURIComponent(channelId)}&key=${encodeURIComponent(apiKey)}`,
      { next: { revalidate: 3600 }, signal: AbortSignal.timeout(5000) }
    );
    if (!res.ok) return null;

    const data = await res.json();
    const count = data.items?.[0]?.statistics?.subscriberCount;
    return count ? Number(count) : null;
  } catch {
    return null;
  }
}