kundencenter/apps/worker/src/index.ts

import http from 'node:http';
import { env } from './env.js';
import { pool } from '@kc/platform/db';
import { discordEnabled, discordReady, startDiscord, stopDiscord } from './discord.js';
import { recoverStale, runOnce } from './jobs.js';
import { enqueue } from '@kc/platform/jobs';
import { processContractLifecycle, scheduleDueSyncs } from '@kc/connectors';
import { checkMailbox } from './mailbox.js';

const log = (m: string) => console.log(JSON.stringify({ t: new Date().toISOString(), svc: 'worker', msg: m }));
let lastLoop = Date.now();
let stopping = false;

// Health: Liveness (Schleife lebt) + Readiness (DB), Discord-Status nur informativ
http.createServer(async (req, res) => {
  const alive = Date.now() - lastLoop < 60_000;
  let db = false; try { await pool.query('SELECT 1'); db = true; } catch { /* db down */ }
  const ok = alive && db;
  res.writeHead(req.url === '/health' ? (alive ? 200 : 503) : (ok ? 200 : 503), { 'content-type': 'application/json' });
  res.end(JSON.stringify({ status: ok ? 'ok' : 'degraded', loop: alive, db, discord: discordEnabled() ? (discordReady() ? 'connected' : 'connecting') : 'disabled' }));
}).listen(env.healthPort, '127.0.0.1');

await recoverStale(log);
startDiscord(log).catch((e) => log(`Discord-Start fehlgeschlagen: ${(e as Error).message}`));
setInterval(() => recoverStale(log).catch(() => undefined), 60_000);
// Regelmäßiger Abgleich: fällige Connector-Instanzen als Aufträge einplanen (idempotent pro Zeitfenster)
const schedule = () => scheduleDueSyncs((t, p, o) => enqueue(t, p, o)).catch((e) => log(`Planung fehlgeschlagen: ${(e as Error).message}`));
setInterval(schedule, 30_000); void schedule();
// Verträge: Kündigungen wirksam machen, verlängern, auslaufen lassen (idempotent)
const lifecycle = () => processContractLifecycle(new Date(), (t, p, o) => enqueue(t, p, o)).then((r) => { if (r.ended || r.renewed) log(`Verträge: ${r.ended} beendet, ${r.renewed} verlängert`); }).catch((e) => log(`Vertragslauf fehlgeschlagen: ${(e as Error).message}`));
setInterval(lifecycle, 60_000); void lifecycle();

// Backup-Frische: fehlt ein erfolgreiches Backup seit >26 h, wird gemeldet (höchstens alle 12 h, ohne Nutzdaten)
import { readFile } from 'node:fs/promises';
const checkBackup = async () => {
  try {
    const st = JSON.parse(await readFile(process.env.BACKUP_STATUS_FILE ?? '/var/lib/kundencenter/backup-status.json', 'utf8'));
    const age = st.lastRun?.at ? (Date.now() - new Date(st.lastRun.at).getTime()) / 3600000 : Infinity;
    if (age > 26) await enqueue('discord.notify', { event: 'backup.stale', detail: Number.isFinite(age) ? `letzter Lauf vor ${Math.round(age)} Stunden` : 'noch nie gelaufen' }, { idempotencyKey: `backup.stale:${Math.floor(Date.now() / (12 * 3600000))}` });
  } catch { /* Backup nicht eingerichtet: keine Meldung */ }
};
setInterval(() => void checkBackup(), 3600_000);

// Ticket-Posteingang: eingehende Mails abrufen und zuordnen (siehe mailbox.ts)
setInterval(() => void checkMailbox(log).catch((e) => log(`IMAP-Lauf fehlgeschlagen: ${(e as Error).message}`)), 120_000);
void checkMailbox(log).catch((e) => log(`IMAP-Lauf fehlgeschlagen: ${(e as Error).message}`));

for (const sig of ['SIGTERM', 'SIGINT'] as const) process.on(sig, async () => { stopping = true; await stopDiscord(); await pool.end(); process.exit(0); });
log('Worker gestartet');
while (!stopping) {
  try { lastLoop = Date.now(); const worked = await runOnce(log); if (!worked) await new Promise((r) => setTimeout(r, 2000)); }
  catch (e) { log(`Schleifenfehler: ${(e as Error).message}`); await new Promise((r) => setTimeout(r, 5000)); }
}