export async function register() {
  // Only run on the Node.js server runtime, not during build or in the edge runtime
  if (process.env.NEXT_RUNTIME !== "nodejs") return;

  const { prisma } = await import("@/lib/db");

  let settings;
  try {
    settings = await prisma.appSettings.findUnique({
      where: { id: "singleton" },
    });
  } catch (err) {
    console.error("[instrumentation] Could not read settings:", err);
    return;
  }

  if (!settings) return;

  // Resume email monitoring
  if (
    settings.emailWatching &&
    settings.emailImapHost &&
    settings.emailImapUser &&
    settings.emailImapPass
  ) {
    try {
      const { startEmailWatching } = await import("@/lib/email-watcher");
      await startEmailWatching({
        host: settings.emailImapHost,
        port: settings.emailImapPort,
        user: settings.emailImapUser,
        pass: settings.emailImapPass,
        tls: settings.emailImapTls,
        folder: settings.emailFolder,
        processedAction: settings.emailProcessed,
        processedFolder: settings.emailProcessedFolder,
      });
      console.log("[instrumentation] Email monitoring resumed");
    } catch (err) {
      console.error("[instrumentation] Failed to resume email monitoring:", err);
    }
  }

  // Resume folder watching
  if (settings.watching && settings.watchDir) {
    try {
      const { startWatching } = await import("@/lib/watcher");
      await startWatching(settings.watchDir);
      console.log("[instrumentation] Folder watching resumed");
    } catch (err) {
      console.error("[instrumentation] Failed to resume folder watching:", err);
    }
  }
}