root/fcs-utils
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

minor refactor

Browse source
This commit is contained in:
FH 2022-04-01 12:13:22 +02:00
parent 16803b6dac
commit a600f36a13
3 changed files with 74 additions and 76 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
FCS.Lib.Utility.csproj.DotSettings Normal file
View file

@ -0,0 +1,2 @@
<wpf:ResourceDictionary xml:space="preserve" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:s="clr-namespace:System;assembly=mscorlib" xmlns:ss="urn:shemas-jetbrains-com:settings-storage-xaml" xmlns:wpf="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
<s:String x:Key="/Default/CodeInspection/CSharpLanguageProject/LanguageLevel/@EntryValue">Latest</s:String></wpf:ResourceDictionary>

4
Properties/AssemblyInfo.cs
View file

@ -16,5 +16,5 @@ using System.Runtime.InteropServices;
[assembly: ComVisible(false)]
[assembly: Guid("aaf08873-14e5-411d-8ec8-629782ac8f03")]
[assembly: AssemblyVersion("2.1.22090.1256")]
[assembly: AssemblyFileVersion("2.1.22090.1256")]
[assembly: AssemblyVersion("2.1.22091.1026")]
[assembly: AssemblyFileVersion("2.1.22091.1026")]

140
VatUtils.cs
View file

@ -1,12 +1,8 @@
using System;
using System.Collections.Generic;
using System.Configuration;
using System.Linq;
using System.Security.Cryptography.X509Certificates;
using System.Linq;
namespace FCS.Lib.Utility
{
public class VatUtils
public static class VatUtils
{
public static bool CheckVat(string countryCode, string vatNumber)
{
@ -19,7 +15,18 @@ namespace FCS.Lib.Utility
};
}
private static bool CheckVatNumberNorway(string vatNumber)
public static bool CheckVatNumberDenmark(string vatNumber)
{
// https://wiki.scn.sap.com/wiki/display/CRM/Denmark
// 8 digits 0 to 9
// C1..C7
// C8 Modulo 11 check digit
// C1 > 0
// R = (2*C1 + 7*C2 + 6*C3 + 5*C4 + 4*C5 + 3*C6 + 2*C7 + C8)
return (int)char.GetNumericValue(vatNumber[0]) == 1 && vatNumber.Length == 8 && ValidateMod11(vatNumber);
}
public static bool CheckVatNumberNorway(string vatNumber)
{
// https://wiki.scn.sap.com/wiki/display/CRM/Norway
// 12 digits
@ -29,20 +36,7 @@ namespace FCS.Lib.Utility
return vatNumber.Length >= 9 && ValidateMod11(vatNumber.Substring(0, 8));
}
private static bool CheckVatNumberDenmark(string vatNumber)
{
// https://wiki.scn.sap.com/wiki/display/CRM/Denmark
// 8 digits 0 to 9
// C1..C7
// C8 Modulo 11 check digit
// C1 > 0
// R = (2*C1 + 7*C2 + 6*C3 + 5*C4 + 4*C5 + 3*C6 + 2*C7 + C8)
if ((int)char.GetNumericValue(vatNumber[0]) < 1 || vatNumber.Length > 8)
return false;
return ValidateMod11(vatNumber);
}
private static bool CheckVatNumberSweden(string vatNumber)
public static bool CheckVatNumberSweden(string vatNumber)
{
// https://wiki.scn.sap.com/wiki/display/CRM/Sweden
// 12 digits 0 to 9
@ -53,31 +47,29 @@ namespace FCS.Lib.Utility
//
// Validate full string using Luhn algoritm
// 12 chars
if (vatNumber.Length != 12)
if (vatNumber.Length != 12 || vatNumber.Substring(10) != "01" || long.Parse(vatNumber) == 0)
return false;
// validate if number
if (!int.TryParse(vatNumber, out var result))
return false;
//validate char 11 and 12
var valid = int.TryParse(vatNumber.Substring(10, 2), out var v2);
if(valid && v2 is < 1 or > 94 )
return false;
// check vatnumber
return CheckLuhn(vatNumber);
var r = new[] { 0, 2, 4, 5, 8 }
.Sum(m => (int)char.GetNumericValue(vatNumber[m]) / 5 +
(int)char.GetNumericValue(vatNumber[m]) * 2 % 10);
var c1 = new[] { 1, 3, 5, 7 }.Sum(m => (int)char.GetNumericValue(vatNumber[m]));
var c10 = (10 - (r + c1) % 10) % 10;
return $"{vatNumber.Substring(0,9)}{c10}{vatNumber.Substring(9,1)}" == vatNumber;
}
public static bool ValidateMod11(string number)
{
if (long.Parse(number) == 0)
return false;
var sum = 0;
for (int i = number.Length - 1, multiplier = 1; i >= 0; i--)
{
Console.WriteLine($"char: {number[i]} multiplier: {multiplier}");
// Console.WriteLine($"char: {number[i]} multiplier: {multiplier}");
sum += (int)char.GetNumericValue(number[i]) * multiplier;
if (++multiplier > 7) multiplier = 2;
}
return sum % 11 == 0;
}
@ -98,10 +90,49 @@ namespace FCS.Lib.Utility
nSum += d % 10;
isSecond = !isSecond;
}
return (nSum % 10 == 0);
return nSum % 10 == 0;
}
public static bool CheckLuhn(string vatNumber)
public static string GetMod10CheckDigit(string number)
{
var sum = 0;
var alt = true;
var digits = number.ToCharArray();
for (var i = digits.Length - 1; i >= 0; i--)
{
var curDigit = digits[i] - 48;
if (alt)
{
curDigit *= 2;
if (curDigit > 9)
curDigit -= 9;
}
sum += curDigit;
alt = !alt;
}
return sum % 10 == 0 ? "0" : (10 - sum % 10).ToString();
}
public static string AddMod11CheckDigit(string number)
{
return number + GetMod11CheckDigit(number);
}
public static string GetMod11CheckDigit(string number)
{
var sum = 0;
for (int i = number.Length - 1, multiplier = 2; i >= 0; i--)
{
sum += (int)char.GetNumericValue(number[i]) * multiplier;
if (++multiplier > 7) multiplier = 2;
}
var modulo = sum % 11;
return modulo is 0 or 1 ? "0" : (11 - modulo).ToString();
}
private static bool CheckLuhn(string vatNumber)
{
// https://www.geeksforgeeks.org/luhn-algorithm/
@ -121,44 +152,9 @@ namespace FCS.Lib.Utility
isSecond = !isSecond;
}
return (nSum % 10 == 0);
return nSum % 10 == 0;
}
public static string GetMod10CheckDigit(string number)
{
var sum = 0;
var alt = true;
var digits = number.ToCharArray();
for (int i = digits.Length - 1; i >= 0; i--)
{
var curDigit = digits[i] - 48;
if (alt)
{
curDigit *= 2;
if (curDigit > 9)
curDigit -= 9;
}
sum += curDigit;
alt = !alt;
}
return sum % 10 == 0 ? "0" : (10 - sum % 10).ToString();
}
public static string AddSelfCheckDigit(string number)
{
return number + GetMod11CheckDigit(number);
}
public static string GetMod11CheckDigit(string number)
{
var sum = 0;
for (int i = number.Length - 1, multiplier = 2; i >= 0; i--)
{
sum += (int)char.GetNumericValue(number[i]) * multiplier;
if (++multiplier > 7) multiplier = 2;
}
var modulo = (sum % 11);
return modulo is 0 or 1 ? "0" : (11 - modulo).ToString();
}
}
}