class Balance {
  final String userId;
  final String userName;
  final double totalPaid;
  final double totalOwed;
  final double balance;

  Balance({
    required this.userId,
    required this.userName,
    required this.totalPaid,
    required this.totalOwed,
  }) : balance = totalPaid - totalOwed;

  bool get shouldReceive => balance > 0;
  bool get shouldPay => balance < 0;
  double get absoluteBalance => balance.abs();
}

class Settlement {
  final String fromUserId;
  final String fromUserName;
  final String toUserId;
  final String toUserName;
  final double amount;

  Settlement({
    required this.fromUserId,
    required this.fromUserName,
    required this.toUserId,
    required this.toUserName,
    required this.amount,
  });
}