/**
 * Copyright (c) 2026 Niolla
 * All rights reserved.
 *
 * This source code is proprietary and confidential.
 * Unauthorized copying, modification, distribution, or use
 * of this file, via any medium, is strictly prohibited.
 */

// cron/cleanInactiveNotifications.cron.js

const cron = require("node-cron");

const {
  sequelize,
  notification,
  userNotification,
} = require("../app/models");

function startCleanInactiveNotificationsCron() {
  console.log("Inactive Notification Cleanup Cron Started");

  const task = cron.schedule(
    "0 0 * * *", // Run every day at midnight
    async () => {
      console.log(
        `[CRON] Cleaning inactive notifications... ${new Date().toISOString()}`,
      );

      try {
        const inactiveNotifications = await notification.findAll({
          where: {
            isActive: false,
          },
          attributes: ["notification_id"],
        });

        if (!inactiveNotifications.length) {
          console.log("[CRON] No inactive notifications found.");
          return;
        }

        const notificationIds = inactiveNotifications.map(
          (item) => item.notification_id,
        );

        const transaction = await sequelize.transaction();

        try {
          // Delete user-notification relationships first
          const deletedUserNotifications = await userNotification.destroy({
            where: {
              notification_id: notificationIds,
            },
            transaction,
          });

          // Delete inactive notifications
          const deletedNotifications = await notification.destroy({
            where: {
              notification_id: notificationIds,
              isActive: false,
            },
            transaction,
          });

          await transaction.commit();

          console.log(
            `[CRON] Cleanup completed. Deleted ${deletedNotifications} notifications and ${deletedUserNotifications} user notification records.`,
          );
        } catch (err) {
          await transaction.rollback();

          console.error(
            "[CRON] Failed to clean inactive notifications:",
            err,
          );
        }
      } catch (err) {
        console.error(
          "[CRON] Error while checking inactive notifications:",
          err,
        );
      }
    },
    {
      scheduled: false,
    },
  );

  task.start();

  return task;
}

module.exports = startCleanInactiveNotificationsCron;