private static int[] GetSum(string value)
{
int[] sums = new int[] { 0, 0 };
for (int i = 0; i < 12; i++)
{
sums[0] += int.Parse(value[i].ToString()) * CnpjRule.CalculateBeforeLastDigitWeight(i);
sums[1] += int.Parse(value[i].ToString()) * CnpjRule.CalculateLastDigitWeight(i);
}
sums[1] += int.Parse(value[12].ToString()) * 2;
return(sums);
}
/// <summary>
/// Validador de CNPJ
/// </summary>
/// <param name="value">CNPJ</param>
/// <returns></returns>
public static bool IsValid(string value)
{
string aux = RemoveMask(value);
if (!HasValidParams(aux))
{
return(false);
}
int[] sums = GetSum(aux);
int beforeLastDigit = CnpjRule.CalculateDigitValue(sums[0]);
int lastDigit = CnpjRule.CalculateDigitValue(sums[1]);
string lastTwoDigits = beforeLastDigit.ToString() + lastDigit.ToString();
return(aux.EndsWith(lastTwoDigits));
}
private static int[] GenerateNumbers()
{
List <int> generatedNambers = new List <int>();
int totalTBeforeLastDigit = 0;
int totalLastDigit = 0;
for (int i = 0; i < 12; i++)
{
generatedNambers.Add(_random.Next(10));
totalTBeforeLastDigit += generatedNambers[generatedNambers.Count - 1] * CnpjRule.CalculateBeforeLastDigitWeight(i);
totalLastDigit += generatedNambers[generatedNambers.Count - 1] * CnpjRule.CalculateLastDigitWeight(i);
}
generatedNambers.Add(CnpjRule.CalculateDigitValue(totalTBeforeLastDigit));
totalLastDigit += generatedNambers[generatedNambers.Count - 1] * 2;
generatedNambers.Add(CnpjRule.CalculateDigitValue(totalLastDigit));
return(generatedNambers.ToArray());
}
