import type { EntityManager } from '@mikro-orm/core';
import { NotificationPreference } from '../modules/notification/entities/notification-preference.entity';
import type { Restaurant } from '../modules/restaurants/entities/restaurant.entity';
import { notificationPreferencesData } from './data/notification-preferences.data';

export class NotificationPreferencesSeeder {
  async run(em: EntityManager, restaurants: Restaurant[]): Promise<void> {
    for (const restaurant of restaurants) {
      if (!restaurant) continue;

      for (const preferenceData of notificationPreferencesData) {
        const existing = await em.findOne(NotificationPreference, {
          restaurant: { id: restaurant.id },
          title: preferenceData.title,
        });

        if (!existing) {
          const preference = em.create(NotificationPreference, {
            restaurant,
            title: preferenceData.title,
            channels: preferenceData.channels,
          });
          em.persist(preference);
        } else {
          // Update existing preference if notification type changed
          if (existing.channels.length !== preferenceData.channels.length) {
            existing.channels = preferenceData.channels;
            em.persist(existing);
          }
        }
      }
    }

    await em.flush();
  }
}