public int Add(string numbers)
{
if (ContainsNoNumbers(numbers))
{
return(0);
}
if (ContainsASingleNumber(numbers))
{
return(GetSingleNumber(numbers));
}
var formattedNumbers = new FormattedNumberString(numbers);
var negativeNumbers = new NegativeNumbers(formattedNumbers);
if (negativeNumbers.HasAny())
{
throw new NegativeException($"Negatives not allowed, {negativeNumbers}");
}
return(new Calculator(formattedNumbers).GetTotal());
}
/// <summary>
/// Converts numbers to words
/// </summary>
/// <param name="number"></param>
/// <returns></returns>
public static string NumberToWords(decimal number, string moneda)
{
if (number > 999999999)
{
return("Numero demasiado grande");
}
StringBuilder Words;
string FormattedNumberString;
int decimalSeparatorLocation;
int millionsPart;
int thousandsPart;
int hundredsPart;
int decimalsPart;
int hundreds;
int tens;
int units;
int ActualNumber = 0;
Words = new StringBuilder();
FormattedNumberString = number.ToString("000000000.00");
char DecimalSeparator = Convert.ToChar((Convert.ToString(1.1)).Trim().Substring(1, 1));
decimalSeparatorLocation = FormattedNumberString.IndexOf(DecimalSeparator);
millionsPart = Convert.ToInt32(FormattedNumberString.Substring(0, 3));
thousandsPart = Convert.ToInt32(FormattedNumberString.Substring(3, 3));
hundredsPart = Convert.ToInt32(FormattedNumberString.Substring(6, 3));
decimalsPart = Convert.ToInt32(FormattedNumberString.Substring(decimalSeparatorLocation + 1, 2));
moneda = moneda.ToLower();
for (int NumberPart = 1; NumberPart <= 4; NumberPart++)
{
switch (NumberPart)
{
case 1:
{
ActualNumber = millionsPart;
if (millionsPart == 1)
{
Words.Append(_oneMillionWord);
Words.Append(' ');
continue;
}
break;
}
case 2:
{
ActualNumber = thousandsPart;
if (millionsPart != 1 && millionsPart != 0)
{
Words.Append(_millionsWord);
Words.Append(' ');
}
if (thousandsPart == 1)
{
Words.Append(_oneThousandWord);
Words.Append(' ');
continue;
}
break;
}
case 3:
{
ActualNumber = hundredsPart;
if (thousandsPart != 1 && thousandsPart != 0)
{
Words.Append(_thousandWord);
Words.Append(' ');
}
break;
}
case 4:
{
ActualNumber = decimalsPart;
if (decimalsPart != 0)
{
if (millionsPart == 0 && thousandsPart == 0 && hundredsPart == 0)
{
Words.Append(moneda);
Words.Append(' ');
Words.Append(_zeroWithWord);
Words.Append(' ');
}
else
{
Words.Append(moneda);
Words.Append(' ');
Words.Append(_withWord);
Words.Append(' ');
}
}
else
{
Words.Append(moneda);
}
break;
}
}
hundreds = (int)(ActualNumber / 100);
tens = (int)(ActualNumber - hundreds * 100) / 10;
units = (int)(ActualNumber - (hundreds * 100 + tens * 10));
if (ActualNumber == 0)
{
continue;
}
if (ActualNumber == 100)
{
Words.Append(_hundredWord);
Words.Append(' ');
continue;
}
else
{
if (ActualNumber == 101 && NumberPart != 3)
{
Words.Append(_oneHundredWord);
Words.Append(' ');
continue;
}
else
{
if (ActualNumber > 100)
{
Words.Append(_numbersInWords[hundreds + 35]);
Words.Append(' ');
}
}
}
if (tens < 3 && tens != 0)
{
Words.Append(_numbersInWords[tens * 10 + units - 1]);
Words.Append(' ');
}
else
{
if (tens > 2)
{
Words.Append(_numbersInWords[tens + 26]);
Words.Append(' ');
if (units == 0)
{
continue;
}
Words.Append(_andWord);
Words.Append(' ');
Words.Append(_numbersInWords[units - 1]);
Words.Append(' ');
}
else
{
if (tens == 0 && units != 0)
{
Words.Append(_numbersInWords[units - 1]);
Words.Append(' ');
}
}
}
} // end for
if (decimalsPart != 0)
{
Words.Append(_centWord);
}
// Resolve particular problems here.
Words.Replace("uno mil", "un mil");
return(Words.ToString().Trim());
}
