class AppNotification {
  final int id;
  final int userId;
  final String title;
  final String? body;
  final String? link;
  final bool isRead;
  final DateTime createdAt;

  const AppNotification({
    required this.id, required this.userId, required this.title,
    this.body, this.link, required this.isRead, required this.createdAt,
  });

  factory AppNotification.fromJson(Map<String, dynamic> j) => AppNotification(
    id: j['id'],
    userId: j['user_id'],
    title: j['title'] ?? '',
    body: j['body'],
    link: j['link'],
    isRead: j['is_read'] ?? false,
    createdAt: DateTime.parse(j['created_at']),
  );
}