public static bool IsValid(string pesel)
{
var regex = new System.Text.RegularExpressions.Regex("^\\d{11}$");
if (!regex.IsMatch(pesel))
{
return(false);
}
int checkSum = PeselCheckSumCalculator.Calculate(pesel);
int lastDigit = pesel.Last() - '0';
return(lastDigit == checkSum);
}
public string Generate(bool isMan)
{
var peselStringBuilder = new StringBuilder();
do
{
DateTime birthDate = GenerateDate(1900, 2099);
AppendPeselDate(birthDate, peselStringBuilder);
peselStringBuilder.Append(GenerateRandomNumbers(3));
if (isMan)
{
peselStringBuilder.Append(ManNumber());
}
else
{
peselStringBuilder.Append(WomanNumber());
}
peselStringBuilder.Append(PeselCheckSumCalculator.Calculate(peselStringBuilder.ToString()));
} while (generatedPesels.Contains(peselStringBuilder.ToString()));
generatedPesels.Add(peselStringBuilder.ToString());
return(peselStringBuilder.ToString());
}