public BankAccountDetails(string sortCode, string accountNumber)
{
accountNumber = PrepareString(accountNumber);
sortCode = PrepareString(sortCode);
switch (accountNumber.Length)
{
case 9:
var chars = sortCode.ToCharArray();
chars[5] = accountNumber[0];
sortCode = new string(chars);
accountNumber = accountNumber.Substring(1);
break;
case 10:
if (IsCooperativeBankSortCode(sortCode))
{
accountNumber = accountNumber.Substring(0, 8);
}
else if (IsNatWestSortCode(sortCode))
{
accountNumber = accountNumber.Substring(2);
} else
{
throw new ArgumentException(string.Format("Ten Digit Account Numbers can only come from Natwest or Coop sortcodes. {0} does not appear to be either",sortCode));
}
break;
}
SortCode = new SortCode(sortCode);
AccountNumber = new AccountNumber(accountNumber);
}
public int[] GetExceptionTwoAlternativeWeights(int[] originalWeights)
{
if (AccountNumber.IntegerAt(0) != 0)
{
return(AccountNumber.IntegerAt(6) == 9
? AisNotZeroAndGisNineWeights
: AisNotZeroAndGisNotNineWeights);
}
return(originalWeights);
}
private void ExceptionSevenPreprocessing()
{
if (WeightMappings.First().Exception != 7)
{
return;
}
if (AccountNumber.IntegerAt(6) != 9)
{
return;
}
ZeroiseUtoB(WeightMappings.First());
}
private IList <ModulusWeightMapping> ExceptionSevenPreprocessing(IList <ModulusWeightMapping> mappings)
{
if (mappings.First().Exception != 7)
{
return(mappings);
}
if (AccountNumber.IntegerAt(6) != 9)
{
return(mappings);
}
return(mappings.Select((m, index) => index == 0 ? ZeroiseUtoB(m) : m).ToList());
}
public static BankAccountDetails From(SortCode sortCode, AccountNumber accountNumber, IEnumerable<IModulusWeightMapping> weightMappings)
{
return new BankAccountDetails(sortCode.ToString(),
accountNumber.ToString())
{
WeightMappings = weightMappings
};
}