private static ParseResult ParseNumberFFBBBUUUUP([NotNull] string number, [NotNull] string originalNumber, Province province)
{
if (number.Length != 10)
{
return(ParseResult.AsError(originalNumber, province, TaxNumberStatus.InvalidLength));
}
string prefix;
switch (province)
{
case Elster.Province.Berlin:
prefix = "11";
break;
case Elster.Province.Hamburg:
prefix = "22";
break;
case Elster.Province.RheinlandPfalz:
prefix = "27";
break;
case Elster.Province.BadenWuerttemberg:
prefix = "28";
break;
case Elster.Province.Bremen:
prefix = "24";
break;
case Elster.Province.Niedersachsen:
prefix = "23";
break;
case Elster.Province.SchleswigHolstein:
prefix = "21";
break;
default:
throw new NotSupportedException($"Kein Präfix für das Bundesland {province} hinterlegt");
}
var result = string.Format(
"{4}{0}0{1}{2}{3}",
number.Substring(0, 2),
number.Substring(2, 3),
number.Substring(5, 4),
number.Substring(9, 1),
prefix);
return(ParseResult.AsSuccess(result, province));
}
private static ParseResult ParseNumber([NotNull] string number, Province?province)
{
if (number == null)
{
throw new ArgumentNullException(nameof(number));
}
ParseResult result;
var testNumber = number.Replace(" ", string.Empty).Replace("/", string.Empty).Replace("-", string.Empty);
switch (province)
{
case Elster.Province.Bayern:
case Elster.Province.Brandenburg:
case Elster.Province.MecklenburgVorpommern:
case Elster.Province.Saarland:
case Elster.Province.Sachsen:
case Elster.Province.SachsenAnhalt:
case Elster.Province.Thueringen:
// FFFBBBUUUUP
result = ParseNumberFFFBBBUUUUP(testNumber, number, province.Value);
break;
case Elster.Province.Berlin:
case Elster.Province.Hamburg:
case Elster.Province.RheinlandPfalz:
case Elster.Province.BadenWuerttemberg:
case Elster.Province.Bremen:
case Elster.Province.Niedersachsen:
case Elster.Province.SchleswigHolstein:
// FFBBBUUUUP
result = ParseNumberFFBBBUUUUP(testNumber, number, province.Value);
break;
case Elster.Province.Hessen:
// 0FFBBBUUUUP
result = ParseNumber0FFBBBUUUUP(testNumber, number, province.Value);
break;
case Elster.Province.NordrheinWestfalen:
// FFFBBBBUUUP
result = ParseNumberFFFBBBBUUUP(testNumber, number, province.Value);
break;
default:
result = ParseResult.AsSuccess(number, province);
break;
}
return(result);
}
private static ParseResult ParseNumberFFFBBBBUUUP([NotNull] string number, [NotNull] string originalNumber, Province province)
{
if (number.Length != 11)
{
return(ParseResult.AsError(originalNumber, province, TaxNumberStatus.InvalidLength));
}
const string prefix = "5";
var result = string.Format(
"{4}{0}0{1}{2}{3}",
number.Substring(0, 3),
number.Substring(3, 3),
number.Substring(6, 4),
number.Substring(10, 1),
prefix);
return(ParseResult.AsSuccess(result, province));
}
private ParseResult <Foo> ParseFoo(string rawValue)
{
// Convert raw input to concrete type
var values = rawValue.Split(':');
if (values.Length == 2)
{
var value = new Foo
{
Key = values[0],
Value = values[1],
};
return(ParseResult.AsSuccess(value));
}
return(ParseResult.AsError <Foo>("Invalid value. Must be in `<key>:<value>` format"));
}
private static ParseResult ParseNumber0FFBBBUUUUP([NotNull] string number, [NotNull] string originalNumber, Province province)
{
if (number.Length != 10 && (number.Length != 11 || number[0] != '0'))
{
return(ParseResult.AsError(originalNumber, province, TaxNumberStatus.InvalidLength));
}
const string prefix = "26";
var startOffset = (number.Length == 10) ? 0 : 1;
var result = string.Format(
"{4}{0}0{1}{2}{3}",
number.Substring(startOffset, 2),
number.Substring(startOffset + 2, 3),
number.Substring(startOffset + 5, 4),
number.Substring(startOffset + 9, 1),
prefix);
return(ParseResult.AsSuccess(result, province));
}
private static ParseResult ParseNumberFFFBBBUUUUP([NotNull] string number, [NotNull] string originalNumber, Province province)
{
if (number.Length != 11)
{
return(ParseResult.AsError(originalNumber, province, TaxNumberStatus.InvalidLength));
}
string prefix;
switch (province)
{
case Elster.Province.Bayern:
prefix = "9";
break;
case Elster.Province.Brandenburg:
case Elster.Province.Sachsen:
case Elster.Province.SachsenAnhalt:
prefix = "3";
break;
case Elster.Province.MecklenburgVorpommern:
case Elster.Province.Thueringen:
prefix = "4";
break;
case Elster.Province.Saarland:
prefix = "1";
break;
default:
throw new NotSupportedException($"Kein Präfix für das Bundesland {province} hinterlegt");
}
var result = string.Format(
"{4}{0}0{1}{2}{3}",
number.Substring(0, 3),
number.Substring(3, 3),
number.Substring(6, 4),
number.Substring(10, 1),
prefix);
return(ParseResult.AsSuccess(result, province));
}
private static ParseResult TryParseNumber([NotNull] string number, Province?province)
{
if (number == null)
{
throw new ArgumentNullException(nameof(number));
}
try
{
if (province != null && !string.IsNullOrEmpty(number) && ((number.IndexOf(' ') != -1 || number.IndexOf('/') != -1 || number.IndexOf('-') != -1) || number.Length < 13))
{
return(ParseNumber(number, province));
}
return(ParseResult.AsSuccess(number, province));
}
catch
{
return(ParseResult.AsSuccess(number, province));
}
}
