import { env } from '$env/dynamic/public';
import {
  isNotificationQueued,
  notifications,
  updateLastNotificationID
} from '$lib/Data/AniList/notifications';
import { database } from '$lib/Database/IDB/user';
import { getFingerprint } from './fingerprint';
import root from './root';

export const requestNotifications = async () => {
  if ('Notification' in window && navigator.serviceWorker) {
    const registration = await navigator.serviceWorker.getRegistration();

    if (registration) {
      try {
        const pushSubscription = await registration.pushManager.subscribe({
          userVisibleOnly: true,
          applicationServerKey: env.PUBLIC_VAPID_PUBLIC_KEY
        });

        await fetch(root(`/api/notifications/subscribe?p=${getFingerprint()}`), {
          method: 'POST',
          headers: {
            'Content-Type': 'application/json'
          },
          body: JSON.stringify(pushSubscription)
        });
      } catch {
        await fetch(`/api/notifications/unsubscribe?p=${getFingerprint()}`, {
          method: 'POST'
        });
        await updateLocalNotifications();
        setInterval(async () => await updateLocalNotifications(), 1000 * 60);
      }
    }
  }
};

const updateLocalNotifications = async () => {
  const user = (await database.users.toArray()).at(0);

  if (!user) return;

  const recentNotifications = await notifications(user.user.accessToken);

  if ((await window.Notification.requestPermission()) == 'granted')
    if (recentNotifications && isNotificationQueued(recentNotifications, user.lastNotificationID)) {
      await updateLastNotificationID(user.id, recentNotifications);

      new Notification('due.moe', {
        body: `${recentNotifications[0].user.name}${recentNotifications[0].context}`,
        icon: recentNotifications[0].user.avatar.large || '/favicon-196x196.png',
        tag: 'notification-1'
      });
    }
};