import { buildApp } from './app.js';
import { bootstrap } from './bootstrap.js';
import { cleanupExpiredSessions } from './auth/session.js';
import { prisma } from './db.js';
import { env } from './env.js';

const SESSION_CLEANUP_INTERVAL_MS = 60 * 60 * 1000;

async function main(): Promise<void> {
  const app = await buildApp();

  try {
    await prisma.$queryRaw`SELECT 1`;
  } catch (error) {
    app.log.error({ err: error }, 'Keine Verbindung zur Datenbank');
    process.exit(1);
  }

  await bootstrap({
    info: (msg) => app.log.info(msg),
    warn: (msg) => app.log.warn(msg),
  });

  const cleanup = setInterval(() => {
    cleanupExpiredSessions()
      .then((count) => {
        if (count > 0) app.log.debug(`${count} abgelaufene Sitzungen entfernt`);
      })
      .catch((error) => app.log.warn({ err: error }, 'Aufraeumen der Sitzungen fehlgeschlagen'));
  }, SESSION_CLEANUP_INTERVAL_MS);
  cleanup.unref();

  const shutdown = async (signal: string): Promise<void> => {
    app.log.info(`${signal} empfangen, fahre herunter`);
    clearInterval(cleanup);
    await app.close();
    await prisma.$disconnect();
    process.exit(0);
  };

  process.on('SIGTERM', () => void shutdown('SIGTERM'));
  process.on('SIGINT', () => void shutdown('SIGINT'));

  await app.listen({ port: env.PORT, host: env.HOST });
}

main().catch((error) => {
  console.error('Start fehlgeschlagen:', error);
  process.exit(1);
});