enum BillType { expense, income }

class Bill {
  final String id;
  final String userId;
  final String? familyId;
  final BillType type;
  final double amount;
  final String category;
  final String note;
  final String emoji;
  final String time;
  final String date;
  final String createdAt;

  const Bill({
    required this.id,
    required this.userId,
    this.familyId,
    required this.type,
    required this.amount,
    required this.category,
    this.note = '',
    this.emoji = '📝',
    required this.time,
    required this.date,
    this.createdAt = '',
  });

  bool get isExpense => type == BillType.expense;
  bool get isIncome => type == BillType.income;

  factory Bill.fromJson(Map<String, dynamic> json) {
    return Bill(
      id: json['id'] as String? ?? '',
      userId: json['userId'] as String? ?? '',
      familyId: json['familyId'] as String?,
      type: json['type'] as String? == 'income' ? BillType.income : BillType.expense,
      amount: (json['amount'] as num?)?.toDouble() ?? 0,
      category: json['category'] as String? ?? '',
      note: json['note'] as String? ?? '',
      emoji: json['emoji'] as String? ?? '📝',
      time: json['time'] as String? ?? '00:00',
      date: json['date'] as String? ?? '',
      createdAt: json['createdAt'] as String? ?? '',
    );
  }
}