import { getQueue, type QueueName } from './index';
import { logger } from '@/lib/logger';

interface RecurringJobDef {
  queue: QueueName;
  name: string;
  pattern: string;
}

/**
 * Register all recurring jobs from 11-REALTIME-AND-BACKGROUND-JOBS.md Section 3.2.
 * Called once on server startup.
 */
export async function registerRecurringJobs(): Promise<void> {
  const recurring: RecurringJobDef[] = [
    // Documenso signature fallback poll — primary is webhooks, this is safety net
    { queue: 'documents',     name: 'signature-poll',         pattern: '0 */6 * * *'   },

    // Reminder checks
    { queue: 'notifications', name: 'reminder-check',         pattern: '0 * * * *'     },
    { queue: 'notifications', name: 'reminder-overdue-check', pattern: '*/15 * * * *'  },

    // Google Calendar background sync
    { queue: 'maintenance',   name: 'calendar-sync',          pattern: '*/30 * * * *'  },

    // Daily checks at 08:00
    { queue: 'notifications', name: 'invoice-overdue-check',  pattern: '0 8 * * *'     },
    { queue: 'notifications', name: 'tenure-expiry-check',    pattern: '0 8 * * *'     },

    // Exchange rate refresh every 6 hours
    { queue: 'maintenance',   name: 'currency-refresh',       pattern: '0 */6 * * *'   },

    // Database backup / cleanup
    { queue: 'maintenance',   name: 'database-backup',        pattern: '0 2 * * *'     },
    { queue: 'maintenance',   name: 'backup-cleanup',         pattern: '0 3 * * 0'     }, // Sunday 03:00

    // Session cleanup
    { queue: 'maintenance',   name: 'session-cleanup',        pattern: '0 4 * * *'     },

    // Report scheduler — checks every minute for reports due to run
    { queue: 'reports',       name: 'report-scheduler',       pattern: '* * * * *'     },

    // Notification digest — configurable per user; placeholder fires hourly
    // TODO(L2): make per-user schedule configurable (read from user_settings)
    { queue: 'email',         name: 'notification-digest',    pattern: '0 * * * *'     },

    // Cleanup jobs
    { queue: 'maintenance',   name: 'temp-file-cleanup',      pattern: '0 5 * * *'     },
    { queue: 'maintenance',   name: 'form-expiry-check',      pattern: '0 * * * *'     },
  ];

  for (const job of recurring) {
    const queue = getQueue(job.queue);
    await queue.upsertJobScheduler(
      job.name,
      { pattern: job.pattern },
      { data: {}, name: job.name },
    );
    logger.info({ queue: job.queue, job: job.name, pattern: job.pattern }, 'Registered recurring job');
  }

  logger.info({ count: recurring.length }, 'All recurring jobs registered');
}