379 lines
14 KiB
C#
379 lines
14 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Windows.Controls;
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using Elwig.Models;
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namespace Elwig.Helpers {
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public static class Validator {
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private static readonly Dictionary<string, string[][]> PHONE_NRS = new() {
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{ "43", new string[][] {
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Array.Empty<string>(),
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new string[] { "57", "59" },
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new string[] {
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"50", "517", "718", "804", "720", "780", "800", "802", "810",
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"820", "821", "828", "900", "901", "930", "931", "939",
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"650", "651", "652", "653", "655", "657", "659", "660", "661",
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"663", "664", "665", "666", "667", "668", "669", "67", "68", "69"
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}
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} },
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{ "49", Array.Empty<string[]>() },
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{ "48", Array.Empty<string[]>() },
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{ "420", Array.Empty<string[]>() },
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{ "421", Array.Empty<string[]>() },
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{ "36", Array.Empty<string[]>() },
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{ "386", Array.Empty<string[]>() },
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{ "39", Array.Empty<string[]>() },
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{ "33", Array.Empty<string[]>() },
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{ "41", Array.Empty<string[]>() },
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{ "423", Array.Empty<string[]>() },
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};
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public static ValidationResult CheckInteger(TextBox input, bool required) {
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return CheckInteger(input, required, -1);
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}
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public static ValidationResult CheckInteger(TextBox input, bool required, int maxLen) {
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string text = "";
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int pos = input.CaretIndex;
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for (int i = 0; i < input.Text.Length; i++) {
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char ch = input.Text[i];
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if (char.IsDigit(ch))
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text += ch;
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if (i == input.CaretIndex - 1)
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pos = text.Length;
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}
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input.Text = text;
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input.CaretIndex = pos;
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if (text.Length == 0) {
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return required ? new(false, "Wert ist nicht optional") : new(true, null);
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}
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if (maxLen >= 0 && input.Text.Length > maxLen) {
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input.Text = input.Text[..maxLen];
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input.CaretIndex = Math.Min(pos, maxLen);
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}
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return new(true, null);
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}
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public static ValidationResult CheckPlz(TextBox input, bool required, AppDbContext ctx) {
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CheckInteger(input, false, 4);
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if (!required && input.Text.Length == 0) {
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return new(true, null);
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} else if (input.Text.Length != 4) {
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return new(false, "PLZ zu kurz");
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}
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int plz = int.Parse(input.Text);
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if (!ctx.Postleitzahlen.Any(p => p.Plz == plz)) {
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return new(false, "Ungültige PLZ");
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}
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return new(true, null);
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}
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public static ValidationResult CheckPhoneNumber(TextBox input, bool required) {
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string text = "";
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int pos = input.CaretIndex;
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for (int i = 0, v = 0; i < input.Text.Length && v < 30; i++) {
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char ch = input.Text[i];
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if (v == 0 && input.Text.Length - i >= 2 && ch == '0' && input.Text[i + 1] == '0') {
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v++; i++;
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text += '+';
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} else if (ch == '(' && input.Text.Length - i >= 3 && input.Text[i + 1] == '0' && input.Text[i + 2] == ')') {
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i += 2;
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} else if (v == 0 && ch == '0') {
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v += 3;
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text += "+43";
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} else if (v == 0 && ch == '+') {
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v++;
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text += ch;
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} else if (v > 0 && char.IsDigit(ch)) {
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if (PHONE_NRS.Any(kv => text == "+" + kv.Key))
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text += ' ';
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if (text.StartsWith("+43 ")) {
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var nr = text[4..];
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var vws = PHONE_NRS["43"];
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if (v >= 4 && v - 4 < vws.Length && vws[v - 4].Any(vw => nr.StartsWith(vw)))
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text += ' ';
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else if (nr == "1")
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text += ' ';
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else if (v == 7 && nr.Length == 4)
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text += ' ';
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}
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v++;
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text += ch;
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}
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if (i == input.CaretIndex - 1)
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pos = text.Length;
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}
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input.Text = text;
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input.CaretIndex = pos;
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if (!required && text.Length == 0) {
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return new(true, null);
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} else if (text.Length < 10) {
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return new(false, "Telefonnummer zu kurz");
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}
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return new(true, null);
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}
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public static ValidationResult CheckEmailAddress(TextBox input, bool required) {
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string text = "";
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int pos = input.CaretIndex;
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bool domain = false;
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for (int i = 0; i < input.Text.Length && text.Length < 256; i++) {
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char ch = input.Text[i];
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if (domain) {
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if ((char.IsAscii(ch) && char.IsLetterOrDigit(ch)) || ".-_öäüßÖÄÜẞ".Any(c => c == ch)) {
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if (!(text.Last() == '.' && ch == '.'))
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text += char.ToLower(ch);
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}
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} else {
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if (ch == '@')
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domain = true;
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if (!char.IsControl(ch) && !char.IsWhiteSpace(ch))
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text += ch;
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}
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if (i == input.CaretIndex - 1)
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pos = text.Length;
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}
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input.Text = text;
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input.CaretIndex = pos;
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if (text.Length == 0) {
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return required ? new(false, "E-Mail_Adresse ist nicht optional") : new(true, null);
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} else if (text[0] == '@' || !domain) {
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return new(false, "E-Mail-Adresse ungültig");
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}
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var last = text.Split(".").Last();
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if (last.Length < 2 || !last.All(ch => char.IsAscii(ch) && char.IsLower(ch)))
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return new(false, "E-Mail-Adresse ungültig");
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return new(true, null);
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}
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public static ValidationResult CheckIban(TextBox input, bool required) {
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string text = "";
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int pos = input.CaretIndex;
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int v = 0;
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for (int i = 0; i < input.Text.Length && v < 34; i++) {
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char ch = input.Text[i];
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if (char.IsLetterOrDigit(ch) && char.IsAscii(ch)) {
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if (((v < 2 && char.IsLetter(ch)) || (v >= 2 && v < 4 && char.IsDigit(ch)) || v >= 4) &&
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((!text.StartsWith("AT") && !text.StartsWith("DE")) || char.IsDigit(ch)))
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{
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if (v != 0 && v % 4 == 0)
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text += ' ';
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v++;
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text += char.ToUpper(ch);
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}
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}
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if (i == input.CaretIndex - 1)
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pos = text.Length;
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if (text.StartsWith("AT") && v >= 20)
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break;
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else if (text.StartsWith("DE") && v >= 22)
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break;
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}
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input.Text = text;
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input.CaretIndex = pos;
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if (!required && text.Length == 0) {
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return new(true, null);
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} else if (v < 5 || (text.StartsWith("AT") && v != 20) || (text.StartsWith("DE") && v != 22)) {
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return new(false, "IBAN hat falsche Länge");
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}
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var validation = (text[4..] + text[..4]).Replace(" ", "")
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.Select(ch => char.IsDigit(ch) ? ch.ToString() : (ch - 'A' + 10).ToString())
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.Aggregate((a, b) => a + b);
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if (Utils.Modulo(validation, 97) != 1)
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return new(false, "Prüfsumme der IBAN ist falsch");
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return new(true, null);
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}
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public static ValidationResult CheckBic(TextBox input, bool required) {
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string text = "";
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int pos = input.CaretIndex;
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for (int i = 0, v = 0; i < input.Text.Length; i++) {
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char ch = input.Text[i];
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if ((v < 4 || v >= 6) && char.IsAscii(ch) && char.IsLetterOrDigit(ch)) {
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v++;
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text += char.ToUpper(ch);
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} else if (v >= 4 && v < 6 && char.IsAscii(ch) && char.IsLetter(ch)) {
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v++;
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text += char.ToUpper(ch);
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}
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if (i == input.CaretIndex - 1)
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pos = text.Length;
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}
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if (text.Length == 0) {
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return required ? new(false, "BIC ist nicht optional") : new(true, null);
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}
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if (text.Length > 11) {
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text = text[..11];
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pos = Math.Min(pos, 11);
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}
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if (text.Length == 11 && text.EndsWith("XXX"))
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text = text[..8];
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input.Text = text;
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input.CaretIndex = pos;
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if (text.Length != 11 && text.Length != 8)
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return new(false, "BIC ist ungültig");
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return new(true, null);
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}
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public static ValidationResult CheckLfbisNr(TextBox input, bool required) {
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var res = CheckInteger(input, false, 7);
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if (!res.IsValid) {
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return res;
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} else if (!required && input.Text.Length == 0) {
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return new(true, null);
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} else if (input.Text.Length != 7) {
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return new(false, "Betriebsnummer zu kurz");
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}
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// https://statistik.at/fileadmin/shared/QM/Standarddokumentationen/RW/std_r_land-forstw_register.pdf#page=41
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int s = 0, v = 0;
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for (int i = 0; i < 6; i++)
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s += (input.Text[i] - '0') * (7 - i);
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v = (11 - (s % 11)) % 10;
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if (v != (input.Text[6] - '0'))
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return new(false, "Prüfsumme der Betriebsnummer ist falsch");
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return new(true, null);
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}
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public static ValidationResult CheckUstId(TextBox input, bool required) {
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string text = "";
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int pos = input.CaretIndex;
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for (int i = 0, v = 0; i < input.Text.Length; i++) {
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char ch = input.Text[i];
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if (v < 2 && char.IsAscii(ch) && char.IsLetter(ch)) {
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v++;
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text += char.ToUpper(ch);
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} else if (v >= 2 && char.IsAscii(ch) && char.IsLetterOrDigit(ch)) {
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if (text.StartsWith("AT")) {
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if (v == 2 && (ch == 'u' || ch == 'U')) {
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v++;
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text += 'U';
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} else if (v > 2 && char.IsDigit(ch)) {
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v++;
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text += ch;
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}
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} else {
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v++;
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text += char.ToUpper(ch);
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}
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}
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if (i == input.CaretIndex - 1) {
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pos = text.Length;
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} else if (v >= 14) {
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break;
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} else if (text.StartsWith("AT") && v >= 11) {
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break;
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}
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}
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input.Text = text;
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input.CaretIndex = pos;
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if (text.Length == 0)
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return required ? new(false, "UID ist nicht optional") : new(true, null);
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if (text.StartsWith("AT")) {
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if (text.Length != 11 || text[2] != 'U')
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return new(false, "UID ist ungültig");
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// http://www.pruefziffernberechnung.de/U/USt-IdNr.shtml
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int s = 0, v = 0;
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for (int i = 0; i < 8; i++)
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s += ((text[i + 3] - '0') * (i % 2 + 1)).ToString().Select(ch => ch - '0').Sum();
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v = (96 - s) % 10;
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if (v != (text[10] - '0'))
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return new(false, "Prüfsumme der UID ist falsch");
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} else {
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return new(false, "Not implemented yet");
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}
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return new(true, null);
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}
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public static ValidationResult CheckMgNr(TextBox input, bool required, AppDbContext ctx, Member? m) {
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var res = CheckInteger(input, required);
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if (!res.IsValid) {
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return res;
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} else if (!required && input.Text.Length == 0) {
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return new(true, null);
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}
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int nr = int.Parse(input.Text);
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if (nr != m?.MgNr && ctx.MgNrExists(nr).GetAwaiter().GetResult()) {
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return new(false, "Mitgliedsnummer wird bereits verwendet");
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}
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return new(true, null);
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}
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public static ValidationResult CheckPredecessorMgNr(TextBox input, bool required, AppDbContext ctx) {
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var res = CheckInteger(input, required);
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if (!res.IsValid) {
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return res;
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} else if (!required && input.Text.Length == 0) {
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return new(true, null);
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} else if (!ctx.MgNrExists(int.Parse(input.Text)).GetAwaiter().GetResult()) {
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return new(false, "Ein Mitglied mit dieser Mitgliedsnummer existiert nicht");
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}
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return new(true, null);
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}
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public static ValidationResult CheckDate(TextBox input, bool required) {
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// TODO
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return new(true, "Not implemented yet");
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}
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public static ValidationResult CheckPartialDate(TextBox input, bool required) {
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// TODO
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return new(true, "Not implemented yet");
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}
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public static ValidationResult CheckVNr(TextBox input, bool required, AppDbContext ctx, Contract? c) {
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var res = CheckInteger(input, required);
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if (!res.IsValid) {
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return res;
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} else if (!required && input.Text.Length == 0) {
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return new(true, null);
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}
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int nr = int.Parse(input.Text);
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if (nr != c?.VNr && ctx.VNrExists(nr).GetAwaiter().GetResult()) {
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return new(false, "Vertragsnummer wird bereits verwendet");
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}
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return new(true, null);
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}
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public static ValidationResult CheckGstNr(TextBox input, bool required) {
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// TODO
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return new(true, "Not implemented yet");
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}
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}
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}
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