/// Domain models for the personal ingtrak bank-data API.
library;

/// Result of `POST /api/connect`.
class ConnectStart {
  const ConnectStart({required this.authUrl, required this.state});

  final String authUrl;
  final String state;

  factory ConnectStart.fromJson(Map<String, dynamic> json) {
    return ConnectStart(
      authUrl: json['authUrl'] as String? ?? '',
      state: json['state'] as String? ?? '',
    );
  }
}

/// Link status from `/api/connect/status` or `/api/connect/complete`.
class ConnectStatus {
  const ConnectStatus({
    required this.status,
    required this.linked,
    this.accountId,
    this.sessionId,
    this.state,
    this.validUntil,
  });

  final String status;
  final bool linked;
  final String? accountId;
  final String? sessionId;
  final String? state;
  final String? validUntil;

  factory ConnectStatus.fromJson(Map<String, dynamic> json) {
    return ConnectStatus(
      status: json['status'] as String? ?? 'unknown',
      linked: json['linked'] as bool? ?? false,
      accountId: json['accountId'] as String?,
      sessionId: json['sessionId'] as String?,
      state: json['state'] as String?,
      validUntil: json['validUntil'] as String?,
    );
  }

  static const disconnected = ConnectStatus(
    status: 'disconnected',
    linked: false,
  );
}

/// `GET /api/balance` payload.
class BankBalance {
  const BankBalance({
    required this.amount,
    required this.currency,
    this.balanceType,
  });

  final double amount;
  final String currency;
  final String? balanceType;

  factory BankBalance.fromJson(Map<String, dynamic> json) {
    final rawAmount = json['amount'];
    final amount = switch (rawAmount) {
      num n => n.toDouble(),
      String s => double.tryParse(s) ?? 0,
      _ => 0.0,
    };
    return BankBalance(
      amount: amount,
      currency: json['currency'] as String? ?? 'EUR',
      balanceType: json['balanceType'] as String?,
    );
  }
}

/// One row from `GET /api/transactions`.
class BankTransaction {
  const BankTransaction({
    required this.date,
    required this.description,
    required this.amount,
    required this.currency,
    required this.pending,
  });

  final String date;
  final String description;
  final double amount;
  final String currency;
  final bool pending;

  factory BankTransaction.fromJson(Map<String, dynamic> json) {
    final rawAmount = json['amount'];
    final amount = switch (rawAmount) {
      num n => n.toDouble(),
      String s => double.tryParse(s) ?? 0,
      _ => 0.0,
    };
    return BankTransaction(
      date: json['date'] as String? ?? '',
      description: json['description'] as String? ?? 'Unknown',
      amount: amount,
      currency: json['currency'] as String? ?? 'EUR',
      pending: json['pending'] as bool? ?? false,
    );
  }
}