checkHungarianBBAN function

bool checkHungarianBBAN(String bban)

Hungarian (HU) BBAN check

@ignore

Implementation

bool checkHungarianBBAN(String bban) {
  const List<int> weights = <int>[9, 7, 3, 1, 9, 7, 3, 1, 9, 7, 3, 1, 9, 7, 3];
  final int controlDigitBankBranch = int.parse(bban[7], radix: 10);
  final String toCheckBankBranch = bban.substring(0, 7);
  int sum = 0;
  for (int index = 0; index < toCheckBankBranch.length; index++) {
    sum += int.parse(toCheckBankBranch[index], radix: 10) * weights[index];
  }
  int remainder = sum % 10;
  if (controlDigitBankBranch != (remainder == 0 ? 0 : 10 - remainder)) {
    return false;
  }
  sum = 0;
  if (bban.endsWith('00000000')) {
    final String toCheckAccount = bban.substring(8, 15);
    final int controlDigitAccount = int.parse(bban[15], radix: 10);
    for (int index = 0; index < toCheckAccount.length; index++) {
      sum += int.parse(toCheckAccount[index], radix: 10) * weights[index];
    }
    int remainder = sum % 10;
    return controlDigitAccount == (remainder == 0 ? 0 : 10 - remainder);
  } else {
    final String toCheckAccount = bban.substring(8, 23);
    final int controlDigitAccount = int.parse(bban[23], radix: 10);
    for (int index = 0; index < toCheckAccount.length; index++) {
      sum += int.parse(toCheckAccount[index], radix: 10) * weights[index];
    }
    int remainder = sum % 10;
    return controlDigitAccount == (remainder == 0 ? 0 : 10 - remainder);
  }
}