[chore:] various tiny improvements

Reviewed-on: #57

since this still works on any linux machines and theoretical on windows machines, we're merging it to prevent wrong commits cause i configured something wrong

DataStore/Settings.cs

@@ -12,8 +12,8 @@ public class Settings
     public Customers customers = new();
     public PdfExportSettings pdfExport { get; set; } = new();
 
-    public string settingsPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData),
-        "logofclient", "config.json");
+    // public string settingsPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData),
+    //     "logofclient", "config.json");
 
     public Settings()
     {
@@ -23,23 +23,21 @@ public class Settings
 
     public static void Save()
     {
-        if (!Directory.Exists(Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData),
-                "logofclient")))
-            Directory.CreateDirectory(Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData),
-                "logofclient"));
-        if (!string.IsNullOrEmpty(Global._instance.config_path)) _instance.settingsPath = Global._instance.config_path;
+        if (!Directory.Exists(Global._instance.config_path))
+            Directory.CreateDirectory(Global._instance.config_path);
+        // if (!string.IsNullOrEmpty(Global._instance.config_path)) _instance.settingsPath = Global._instance.config_path;
 
         var json = JsonConvert.SerializeObject(_instance);
-        File.WriteAllText(_instance.settingsPath, json);
+        File.WriteAllText(Path.Combine(Global._instance.config_path,"config.json"), json);
     }
 
     public static void Load()
     {
-        if (!string.IsNullOrEmpty(Global._instance.config_path)) _instance.settingsPath = Global._instance.config_path;
+        //if (!string.IsNullOrEmpty(Global._instance.config_path)) _instance.settingsPath = Global._instance.config_path;
 
         try
         {
-            var contents = File.ReadAllText(_instance.settingsPath);
+            var contents = File.ReadAllText(Path.Combine(Global._instance.config_path, "config.json"));
             _instance = JsonConvert.DeserializeObject<Settings>(contents);
             MainWindow._instance.RefreshCustomerItems();
         }
@@ -82,9 +80,13 @@ public class Global
 
     public string config_path { get; set; } = Path.Combine(
         Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData),
-        "logofclient",
-        "config.json");
+        "logofclient");
 
+    public void SetConfigPath(string path)
+    {
+        if (!string.IsNullOrWhiteSpace(path))
+            config_path = PathUtilities.NormalizeFileSystemPath(path);
+    }
     public string wiki_storage_path { get; set; } = Path.Combine(
         Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData),
         "logofclient",
@@ -118,7 +120,8 @@ public class Global
             var contents = File.ReadAllText(Path.Combine(
                 Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "logofclient",
                 "global.config"));
-            _instance = JsonConvert.DeserializeObject<Global>(contents);
+            _instance = JsonConvert.DeserializeObject<Global>(contents) ?? new Global();
+            _instance.NormalizePaths();
         }
         catch (Exception ex)
         {
@@ -127,6 +130,13 @@ public class Global
             Save();
         }
     }
+
+    private void NormalizePaths()
+    {
+        config_path = PathUtilities.NormalizeFileSystemPath(config_path);
+        wiki_storage_path = PathUtilities.NormalizeFileSystemPath(wiki_storage_path);
+        font_path = PathUtilities.NormalizeFileSystemPath(font_path);
+    }
 }
 
 public class Customers

MainWindow.axaml

@@ -78,7 +78,7 @@
                                                     </StackPanel>
                                                 </MenuItem.Header>
                                             </MenuItem>
-                                            <MenuItem x:Name="MnIAdSetDelete" Click="MnIAdSetRename_OnClick" IsEnabled="False">
+                                            <MenuItem x:Name="MnIAdSetDelete" Click="MnIAdSetDelete_OnClick" IsEnabled="True">
                                                 <MenuItem.Header>
                                                     <StackPanel Orientation="Horizontal">
                                                         <LucideIcon Kind="Trash" Width="12" Height="12" Size="12" />
@@ -389,7 +389,7 @@
                                     <StackPanel Grid.Column="1" Orientation="Vertical" Spacing="5">
                                         <StackPanel Orientation="Horizontal" Spacing="5">
                                             <TextBox x:Name="TbConfigPath" HorizontalAlignment="Stretch"
-                                                     Watermark="/home/username/.config/logofclient/config.json" />
+                                                     Watermark="/home/username/.config/logofclient/" />
                                             <Button x:Name="BtnConfigPath" HorizontalAlignment="Right">
                                                 <Button.Content>
                                                     <StackPanel Orientation="Horizontal">

MainWindow.axaml.cs

@@ -38,6 +38,11 @@ public partial class MainWindow : Window
         Logger.Log("Loading settings...");
         Global.Load();
         Settings.Load();
+        
+        
+        if (!string.IsNullOrWhiteSpace(Global._instance.config_path))
+            TbConfigPath.Text = PathUtilities.NormalizeFileSystemPath(Global._instance.config_path);
+        
         LoadPdfExportOptions();
         HookPdfExportOptionEvents();
 
@@ -57,7 +62,7 @@ public partial class MainWindow : Window
             try
             {
                 if (!string.IsNullOrWhiteSpace(Global._instance.wiki_storage_path))
-                    TbWikiPath.Text = Global._instance.wiki_storage_path;
+                    TbWikiPath.Text = PathUtilities.NormalizeFileSystemPath(Global._instance.wiki_storage_path);
             }
             catch (Exception ex)
             {
@@ -132,6 +137,8 @@ public partial class MainWindow : Window
 
     private void MnuExit_OnClick(object? sender, RoutedEventArgs e)
     {
+        Settings.Save();
+        Global.Save();
         Environment.Exit(0);
     }
 
@@ -212,6 +219,11 @@ public partial class MainWindow : Window
     
 
     private async void NavTree_SelectionChanged(object? sender, SelectionChangedEventArgs e)
+    {
+        ReloadWikiItem();
+    }
+
+    private async void ReloadWikiItem()
     {
         if (NavTree.SelectedItem is TreeViewItem t && t.Tag is WikiItem item && !item.IsFolder)
         {
@@ -255,6 +267,8 @@ public partial class MainWindow : Window
                 ExpandAndFindNode(nodes, selectPath, out var selectedNode) &&
                 selectedNode != null)
                 NavTree.SelectedItem = selectedNode;
+            
+            ReloadWikiItem();
         }catch (Exception ex)
         {
             Logger.Log($"Error while populating nav tree: {ex.Message}", Logger.LogType.Error);
@@ -275,7 +289,7 @@ public partial class MainWindow : Window
     {
         try
         {
-            var wikiRoot = Global._instance.wiki_storage_path;
+            var wikiRoot = PathUtilities.NormalizeFileSystemPath(Global._instance.wiki_storage_path);
             if (NavTree.SelectedItem is TreeViewItem treeItem && treeItem.Tag is WikiItem selectedItem)
             {
                 if (selectedItem.IsFolder) return selectedItem.Path;
@@ -294,6 +308,9 @@ public partial class MainWindow : Window
 
     private static bool PathsEqual(string left, string right)
     {
+        left = PathUtilities.NormalizeFileSystemPath(left);
+        right = PathUtilities.NormalizeFileSystemPath(right);
+
         var normalizedLeft = Path.GetFullPath(left)
             .TrimEnd(Path.DirectorySeparatorChar, Path.AltDirectorySeparatorChar);
         var normalizedRight = Path.GetFullPath(right)
@@ -337,7 +354,7 @@ public partial class MainWindow : Window
 
     private void OpenFolderButton_Click(object? sender, RoutedEventArgs e)
     {
-        var path = Global._instance.wiki_storage_path;
+        var path = PathUtilities.NormalizeFileSystemPath(Global._instance.wiki_storage_path);
         if (!Directory.Exists(path)) return;
 
         try
@@ -364,9 +381,9 @@ public partial class MainWindow : Window
         });
 
         if (folder == null || folder.Count == 0) return;
-        var chosen = folder[0].Path;
-        TbWikiPath.Text = chosen.ToString();
-        Global._instance.wiki_storage_path = chosen.ToString();
+        var chosen = PathUtilities.NormalizeFileSystemPath(folder[0].Path);
+        TbWikiPath.Text = chosen;
+        Global._instance.wiki_storage_path = chosen;
         Global.Save();
 
         // reinit wiki service and reload tree
@@ -384,9 +401,9 @@ public partial class MainWindow : Window
         });
 
         if (folder == null || folder.Count == 0) return;
-        var chosen = folder[0].Path;
-        TbFontPath.Text = chosen.ToString();
-        Global._instance.font_path = chosen.ToString();
+        var chosen = PathUtilities.NormalizeFileSystemPath(folder[0].Path);
+        TbFontPath.Text = chosen;
+        Global._instance.font_path = chosen;
         Global.Save();
     }
 
@@ -400,9 +417,9 @@ public partial class MainWindow : Window
         });
 
         if (folder == null || folder.Count == 0) return;
-        var chosen = folder[0].Path;
-        TbConfigPath.Text = chosen.ToString();
-        Global._instance.config_path = chosen.ToString();
+        var chosen = PathUtilities.NormalizeFileSystemPath(folder[0].Path);
+        Global._instance.SetConfigPath(chosen);
+        TbConfigPath.Text = Global._instance.config_path;
         Global.Save();
 
         MessageBox.Show(this, "Bitte starten Sie das Programm neu, um die Änderungen wirksam zu machen.", "Achtung");
@@ -441,6 +458,7 @@ public partial class MainWindow : Window
         TbSettingsCustomerDescription.Text = "";
         TbSettingsCustomerName.Text = "";
         TbSettingsCustomerPatchInfo.Text = "";
+        TbSettingsCustomerName.Focus();
 
         Settings.Save();
         RefreshCustomerItems();
@@ -491,7 +509,13 @@ public partial class MainWindow : Window
             return;
         }
 
+        var editedWikiFilePath = _selectedWikiFilePath;
         EditorWindow ew = new(_selectedWikiFilePath);
+        ew.Closed += (_, _) =>
+        {
+            if (!string.IsNullOrWhiteSpace(editedWikiFilePath) && File.Exists(editedWikiFilePath))
+                PopulateNavTree(editedWikiFilePath, editedWikiFilePath);
+        };
         ew.Show();
 
         //await MessageBox.Show(this, "Edit feature is currently disabled.", "Edit Disabled");
@@ -829,10 +853,7 @@ public partial class MainWindow : Window
 
             if (!string.IsNullOrWhiteSpace(filePath))
             {
-                if (filePath.StartsWith("file://"))
-                {
-                    filePath = new Uri(filePath).LocalPath;
-                }
+                filePath = PathUtilities.NormalizeFileSystemPath(filePath);
 
                 Console.WriteLine($"PATH: {filePath}");
 
@@ -1106,11 +1127,18 @@ public partial class MainWindow : Window
         result = result.Trim();
         if (!result.EndsWith(".md", StringComparison.OrdinalIgnoreCase)) result += ".md";
 
-        if (!Directory.Exists(Global._instance.wiki_storage_path))
-            Directory.CreateDirectory(Global._instance.wiki_storage_path);
+        var wikiRoot = PathUtilities.NormalizeFileSystemPath(Global._instance.wiki_storage_path);
+        if (!Directory.Exists(wikiRoot))
+            Directory.CreateDirectory(wikiRoot);
 
         try
         {
+            if (PathUtilities.HasInvalidFileNameChars(result))
+            {
+                MessageBox.Show(this, "Der Dateiname enthält ungültige Zeichen.", "Fehler");
+                return;
+            }
+
             var targetDirectory = GetSelectedWikiTargetDirectory();
             Directory.CreateDirectory(targetDirectory);
             var newFilePath = Path.Combine(targetDirectory, result);
@@ -1131,11 +1159,18 @@ public partial class MainWindow : Window
 
         result = result.Trim();
         
-        if (!Directory.Exists(Global._instance.wiki_storage_path))
-            Directory.CreateDirectory(Global._instance.wiki_storage_path);
+        var wikiRoot = PathUtilities.NormalizeFileSystemPath(Global._instance.wiki_storage_path);
+        if (!Directory.Exists(wikiRoot))
+            Directory.CreateDirectory(wikiRoot);
 
         try
         {
+            if (PathUtilities.HasInvalidFileNameChars(result))
+            {
+                MessageBox.Show(this, "Der Ordnername enthält ungültige Zeichen.", "Fehler");
+                return;
+            }
+
             var targetDirectory = GetSelectedWikiTargetDirectory();
             var newFolderPath = Path.Combine(targetDirectory, result);
             Directory.CreateDirectory(newFolderPath);
@@ -1223,4 +1258,29 @@ public partial class MainWindow : Window
         }
          
     }
+
+    private async void MnIAdSetDelete_OnClick(object? sender, RoutedEventArgs e)
+    {
+        if(await MessageBox.Show(this,"Wirklich löschen?","",MessageBoxButton.YesNo) == MessageBoxResult.Yes)
+        {
+            var cus_id = ((Customer)LstCustomers.SelectedItems[0]).ID;
+            var id = (LstCustomerAdressSets.SelectedItems[0] as KasAddressList).ID;
+            try
+            {
+                foreach (var set in Settings._instance.addressSets.addresses)
+                    if (set.ID == id)
+                    {
+                        Settings._instance.addressSets.addresses.Remove(set);
+                        Settings.Save();
+                        RefreshAddressSetListItems(cus_id);
+                        break;
+
+                    }    
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show(this, ex.StackTrace, "Fehler");
+                Logger.Log($"Error while deleting address set: {ex.Message}", Logger.LogType.Error);
+            }}
+    }
 }

MessageBox.axaml

@@ -2,7 +2,7 @@
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
-        mc:Ignorable="d" SizeToContent="WidthAndHeight"
+        mc:Ignorable="d" SizeToContent="WidthAndHeight" WindowStartupLocation="CenterScreen"
         x:Class="Logof_Client.MessageBox" Icon="assets/icon.ico"
         Title="MessageBox">
     <StackPanel>

Tasks/CsvBuilder.cs

@@ -1,3 +1,4 @@
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
@@ -65,11 +66,21 @@ public class CsvBuilder
 
     private string EscapeCsvField(string? value)
     {
-        var field = value ?? string.Empty;
-        var mustQuote = field.Contains(Separator) || field.Contains('"') || field.Contains('\r') || field.Contains('\n');
-        if (!mustQuote)
-            return field;
+        try
+        {
+            var field = value ?? string.Empty;
+            var mustQuote = field.Contains(Separator) || field.Contains('"') || field.Contains('\r') || field.Contains('\n');
+            if (!mustQuote)
+                return field;
+
+            return "\"" + field.Replace("\"", "\"\"") + "\"";
+        }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while escapting csv field: {ex.Message}",Logger.LogType.Warning);
+        }
+
+        return "";
 
-        return "\"" + field.Replace("\"", "\"\"") + "\"";
     }
 }

Tasks/DataImport.cs

@@ -20,210 +20,227 @@ public class DataImport
 
     private static async Task<(bool, KasAddressList)> ImportKasAddressListWithoutPatch(Uri pathToCsv, char separator)
     {
-        if (!File.Exists(pathToCsv.LocalPath))
+        try
         {
-            Console.WriteLine($"File not found: {pathToCsv}");
-            return (false, null);
-        }
-
-        using var reader = new StreamReader(pathToCsv.LocalPath);
-        var headerLine = reader.ReadLine();
-        if (headerLine == null)
-        {
-            Console.WriteLine("File is empty.");
-            return (false, null);
-        }
-
-        var imported = new KasAddressList(
-            await KasAddressList.GenerateName(Path.GetFileNameWithoutExtension(pathToCsv.LocalPath)));
-
-        while (!reader.EndOfStream)
-        {
-            var line = reader.ReadLine();
-            if (string.IsNullOrWhiteSpace(line))
-                continue;
-
-            var parts = ParseCsvLine(line, separator);
-
-            if (parts.Length < 24)
+            if (!File.Exists(pathToCsv.LocalPath))
             {
-                Console.WriteLine($"Not enough columns in line: {line}");
-                continue;
-            }
-
-            try
-            {
-                var person = new KasPerson(KasPerson.GenerateNewID(imported.KasPersons.Count),
-                    ParseInt(parts[0]),
-                    parts[1],
-                    parts[2],
-                    parts[3],
-                    parts[4],
-                    parts[5],
-                    parts[6],
-                    parts[7],
-                    parts[8],
-                    parts[9],
-                    parts[10],
-                    parts[11],
-                    parts[12],
-                    parts[13],
-                    parts[14],
-                    parts[15],
-                    parts[16],
-                    parts[17],
-                    parts[18],
-                    parts[19],
-                    parts[20],
-                    parts[21],
-                    parts[22],
-                    parts[23]
-                );
-                imported.KasPersons.Add(person);
-            }
-            catch (Exception ex)
-            {
-                Console.WriteLine($"Error while parsing line: {line} - {ex.Message}");
-                Console.WriteLine(ex.StackTrace);
+                Console.WriteLine($"File not found: {pathToCsv}");
                 return (false, null);
             }
+
+            using var reader = new StreamReader(pathToCsv.LocalPath);
+            var headerLine = reader.ReadLine();
+            if (headerLine == null)
+            {
+                Console.WriteLine("File is empty.");
+                return (false, null);
+            }
+
+            var imported = new KasAddressList(
+                await KasAddressList.GenerateName(Path.GetFileNameWithoutExtension(pathToCsv.LocalPath)));
+
+            while (!reader.EndOfStream)
+            {
+                var line = reader.ReadLine();
+                if (string.IsNullOrWhiteSpace(line))
+                    continue;
+
+                var parts = ParseCsvLine(line, separator);
+
+                if (parts.Length < 24)
+                {
+                    Console.WriteLine($"Not enough columns in line: {line}");
+                    continue;
+                }
+
+                try
+                {
+                    var person = new KasPerson(KasPerson.GenerateNewID(imported.KasPersons.Count),
+                        ParseInt(parts[0]),
+                        parts[1],
+                        parts[2],
+                        parts[3],
+                        parts[4],
+                        parts[5],
+                        parts[6],
+                        parts[7],
+                        parts[8],
+                        parts[9],
+                        parts[10],
+                        parts[11],
+                        parts[12],
+                        parts[13],
+                        parts[14],
+                        parts[15],
+                        parts[16],
+                        parts[17],
+                        parts[18],
+                        parts[19],
+                        parts[20],
+                        parts[21],
+                        parts[22],
+                        parts[23]
+                    );
+                    imported.KasPersons.Add(person);
+                }
+                catch (Exception ex)
+                {
+                    Logger.Log($"Error while creating new kas person (import): {ex.Message}",Logger.LogType.Error);
+                    Console.WriteLine(ex.StackTrace);
+                    return (false, null);
+                }
+            }
+
+            return (true, imported);
+        }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while importing kas address list without patch: {ex.Message}",Logger.LogType.Error);
         }
 
-        return (true, imported);
+        return (false, null);
     }
 
     private static async Task<(bool, KasAddressList)> ImportKasAddressListWithPatch(Uri pathToCsv, AddressPatch patch,
         char separator)
     {
-        if (!File.Exists(pathToCsv.LocalPath))
+        try
         {
-            Console.WriteLine($"File not found: {pathToCsv}");
-            return (false, null);
-        }
-
-        using var reader = new StreamReader(pathToCsv.LocalPath);
-        var headerLine = reader.ReadLine();
-        if (headerLine == null)
-        {
-            Console.WriteLine("File is empty.");
-            return (false, null);
-        }
-
-        var headers = ParseCsvLine(headerLine, separator);
-
-        var imported = new KasAddressList(
-            await KasAddressList.GenerateName(Path.GetFileNameWithoutExtension(pathToCsv.LocalPath)));
-        var patchType = typeof(AddressPatch);
-        var binding = BindingFlags.Public | BindingFlags.Instance | BindingFlags.IgnoreCase;
-
-        var hasProperties = patchType.GetProperties(binding)
-            .Where(p => p.PropertyType == typeof(bool) && p.Name.StartsWith("has_", StringComparison.OrdinalIgnoreCase))
-            .ToArray();
-
-        //var last_refsid = 1000000;
-
-        while (!reader.EndOfStream)
-        {
-            var line = reader.ReadLine();
-            if (string.IsNullOrWhiteSpace(line))
-                continue;
-
-            var parts = ParseCsvLine(line, separator);
-
-            var fieldValues = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
-
-            //var refsid_existing = false;
-
-            foreach (var hasProp in hasProperties)
+            if (!File.Exists(pathToCsv.LocalPath))
             {
-                var fieldName = hasProp.Name.Substring(4);
-
-
-                var hasObj = hasProp.GetValue(patch);
-                var has = hasObj is bool b && b;
-
-                var patchProp = patchType.GetProperty(fieldName + "_is", binding);
-
-                string desiredHeader = null;
-                if (has && patchProp != null)
-                    desiredHeader = patchProp.GetValue(patch)?.ToString();
-                else
-                    desiredHeader = fieldName;
-
-                var resolvedValue = "";
-
-                if (!string.IsNullOrEmpty(desiredHeader))
-                {
-                    var idx = Array.FindIndex(headers,
-                        h => string.Equals(h, desiredHeader, StringComparison.OrdinalIgnoreCase));
-                    if (idx >= 0 && idx < parts.Length)
-                    {
-                        resolvedValue = parts[idx];
-                    }
-                    else
-                    {
-                        var altIdx = Array.FindIndex(headers, h =>
-                            string.Equals(h, fieldName, StringComparison.OrdinalIgnoreCase) ||
-                            string.Equals(h, fieldName + "_is", StringComparison.OrdinalIgnoreCase));
-
-                        if (altIdx >= 0 && altIdx < parts.Length)
-                            resolvedValue = parts[altIdx];
-                        else
-                            resolvedValue = "";
-                    }
-                }
-
-                fieldValues[fieldName] = resolvedValue ?? "";
-            }
-
-            string GetField(string name)
-            {
-                return fieldValues.TryGetValue(name, out var v) ? v : "";
-            }
-
-            var refsid = 0;
-            if (patch.has_refsid)
-                refsid = ParseInt(GetField("refsid"));
-
-            try
-            {
-                var person = new KasPerson(KasPerson.GenerateNewID(imported.KasPersons.Count), refsid,
-                    GetField("anrede"),
-                    GetField("titel"),
-                    GetField("vorname"),
-                    GetField("adel"),
-                    GetField("name"),
-                    GetField("namezus"),
-                    GetField("anredzus"),
-                    GetField("strasse"),
-                    GetField("strasse2"),
-                    GetField("plz"),
-                    GetField("ort"),
-                    GetField("land"),
-                    GetField("pplz"),
-                    GetField("postfach"),
-                    GetField("name1"),
-                    GetField("name2"),
-                    GetField("name3"),
-                    GetField("name4"),
-                    GetField("name5"),
-                    GetField("funktion"),
-                    GetField("funktion2"),
-                    GetField("abteilung"),
-                    GetField("funktionad")
-                );
-
-                imported.KasPersons.Add(person);
-            }
-            catch (Exception ex)
-            {
-                Console.WriteLine($"Error while parsing line: {line} - {ex.Message}");
-                Console.WriteLine(ex.StackTrace);
+                Console.WriteLine($"File not found: {pathToCsv}");
                 return (false, null);
             }
+
+            using var reader = new StreamReader(pathToCsv.LocalPath);
+            var headerLine = reader.ReadLine();
+            if (headerLine == null)
+            {
+                Console.WriteLine("File is empty.");
+                return (false, null);
+            }
+
+            var headers = ParseCsvLine(headerLine, separator);
+
+            var imported = new KasAddressList(
+                await KasAddressList.GenerateName(Path.GetFileNameWithoutExtension(pathToCsv.LocalPath)));
+            var patchType = typeof(AddressPatch);
+            var binding = BindingFlags.Public | BindingFlags.Instance | BindingFlags.IgnoreCase;
+
+            var hasProperties = patchType.GetProperties(binding)
+                .Where(p => p.PropertyType == typeof(bool) && p.Name.StartsWith("has_", StringComparison.OrdinalIgnoreCase))
+                .ToArray();
+
+            //var last_refsid = 1000000;
+
+            while (!reader.EndOfStream)
+            {
+                var line = reader.ReadLine();
+                if (string.IsNullOrWhiteSpace(line))
+                    continue;
+
+                var parts = ParseCsvLine(line, separator);
+
+                var fieldValues = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
+
+                //var refsid_existing = false;
+
+                foreach (var hasProp in hasProperties)
+                {
+                    var fieldName = hasProp.Name.Substring(4);
+
+
+                    var hasObj = hasProp.GetValue(patch);
+                    var has = hasObj is bool b && b;
+
+                    var patchProp = patchType.GetProperty(fieldName + "_is", binding);
+
+                    string desiredHeader = null;
+                    if (has && patchProp != null)
+                        desiredHeader = patchProp.GetValue(patch)?.ToString();
+                    else
+                        desiredHeader = fieldName;
+
+                    var resolvedValue = "";
+
+                    if (!string.IsNullOrEmpty(desiredHeader))
+                    {
+                        var idx = Array.FindIndex(headers,
+                            h => string.Equals(h, desiredHeader, StringComparison.OrdinalIgnoreCase));
+                        if (idx >= 0 && idx < parts.Length)
+                        {
+                            resolvedValue = parts[idx];
+                        }
+                        else
+                        {
+                            var altIdx = Array.FindIndex(headers, h =>
+                                string.Equals(h, fieldName, StringComparison.OrdinalIgnoreCase) ||
+                                string.Equals(h, fieldName + "_is", StringComparison.OrdinalIgnoreCase));
+
+                            if (altIdx >= 0 && altIdx < parts.Length)
+                                resolvedValue = parts[altIdx];
+                            else
+                                resolvedValue = "";
+                        }
+                    }
+
+                    fieldValues[fieldName] = resolvedValue ?? "";
+                }
+
+                string GetField(string name)
+                {
+                    return fieldValues.TryGetValue(name, out var v) ? v : "";
+                }
+
+                var refsid = 0;
+                if (patch.has_refsid)
+                    refsid = ParseInt(GetField("refsid"));
+
+                try
+                {
+                    var person = new KasPerson(KasPerson.GenerateNewID(imported.KasPersons.Count), refsid,
+                        GetField("anrede"),
+                        GetField("titel"),
+                        GetField("vorname"),
+                        GetField("adel"),
+                        GetField("name"),
+                        GetField("namezus"),
+                        GetField("anredzus"),
+                        GetField("strasse"),
+                        GetField("strasse2"),
+                        GetField("plz"),
+                        GetField("ort"),
+                        GetField("land"),
+                        GetField("pplz"),
+                        GetField("postfach"),
+                        GetField("name1"),
+                        GetField("name2"),
+                        GetField("name3"),
+                        GetField("name4"),
+                        GetField("name5"),
+                        GetField("funktion"),
+                        GetField("funktion2"),
+                        GetField("abteilung"),
+                        GetField("funktionad")
+                    );
+
+                    imported.KasPersons.Add(person);
+                }
+                catch (Exception ex)
+                {
+                    Logger.Log($"Error while creating kas person (import, patch): {ex.Message}",Logger.LogType.Error);
+                    Console.WriteLine(ex.StackTrace);
+                    return (false, null);
+                }
+            }
+
+            return (true, imported);
+        }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while importing kas address list with patch: {ex.Message}",Logger.LogType.Error);
         }
         
-        return (true, imported);
 
         // int GenerateNewRefsid()
         // {
@@ -236,6 +253,7 @@ public class DataImport
         //     last_refsid = biggest + 1;
         //     return last_refsid;
         // }
+        return (false, null);
     }
 
 
@@ -246,38 +264,47 @@ public class DataImport
 
     private static string[] ParseCsvLine(string line, char separator)
     {
-        var fields = new List<string>();
-        var current = new StringBuilder();
-        var inQuotes = false;
-
-        for (var i = 0; i < line.Length; i++)
+        try
         {
-            var c = line[i];
+            var fields = new List<string>();
+            var current = new StringBuilder();
+            var inQuotes = false;
 
-            if (c == '"')
+            for (var i = 0; i < line.Length; i++)
             {
-                if (inQuotes && i + 1 < line.Length && line[i + 1] == '"')
+                var c = line[i];
+
+                if (c == '"')
                 {
-                    current.Append('"');
-                    i++;
+                    if (inQuotes && i + 1 < line.Length && line[i + 1] == '"')
+                    {
+                        current.Append('"');
+                        i++;
+                        continue;
+                    }
+
+                    inQuotes = !inQuotes;
                     continue;
                 }
 
-                inQuotes = !inQuotes;
-                continue;
+                if (c == separator && !inQuotes)
+                {
+                    fields.Add(current.ToString().Trim());
+                    current.Clear();
+                    continue;
+                }
+
+                current.Append(c);
             }
 
-            if (c == separator && !inQuotes)
-            {
-                fields.Add(current.ToString().Trim());
-                current.Clear();
-                continue;
-            }
-
-            current.Append(c);
+            fields.Add(current.ToString().Trim());
+            return fields.ToArray();
+        }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while persing csv line: {ex.Message}",Logger.LogType.Error);
         }
 
-        fields.Add(current.ToString().Trim());
-        return fields.ToArray();
+        return [];
     }
 }

Tasks/PdfBuilder.cs

@@ -18,45 +18,73 @@ public class PdfBuilder
 
     public PdfBuilder(PdfExportSettings? settings = null)
     {
-        EnsureFontResolverRegistered();
-        _settings = settings ?? new PdfExportSettings();
-
-        // Select first font from build output fonts folder (AppContext.BaseDirectory/fonts)
-        var chosenFamily = "Arial";
         try
         {
-            if (Directory.Exists(Global._instance.font_path))
+            EnsureFontResolverRegistered();
+            _settings = settings ?? new PdfExportSettings();
+
+            // Select first font from build output fonts folder (AppContext.BaseDirectory/fonts)
+            var chosenFamily = "Arial";
+            try
             {
-                var first = Directory.EnumerateFiles(Global._instance.font_path, "*.ttf").FirstOrDefault();
-                if (!string.IsNullOrEmpty(first))
-                    chosenFamily = StripStyleSuffix(Path.GetFileNameWithoutExtension(first)) ?? chosenFamily;
+                if (Directory.Exists(Global._instance.font_path))
+                {
+                    var first = Directory.EnumerateFiles(Global._instance.font_path, "*.ttf").FirstOrDefault();
+                    if (!string.IsNullOrEmpty(first))
+                        chosenFamily = StripStyleSuffix(Path.GetFileNameWithoutExtension(first)) ?? chosenFamily;
+                }
             }
+            catch (Exception ex)
+            {
+                Logger.Log($"Error while searching for fonts: {ex.Message}",Logger.LogType.Error);
+                chosenFamily = "Arial";
+            }
+
+            _boldFont = new XFont(chosenFamily, _settings.fontSize, XFontStyleEx.Bold);
+            _regularFont = new XFont(chosenFamily, _settings.fontSize, XFontStyleEx.Regular);
+            _smallFont = new XFont(chosenFamily, _settings.smallFontSize, XFontStyleEx.Regular);
         }
-        catch
+        catch (Exception ex)
         {
-            chosenFamily = "Arial";
+            Logger.Log($"Error while font resolving: {ex.Message}",Logger.LogType.Error);
         }
         
-        _boldFont = new XFont(chosenFamily, _settings.fontSize, XFontStyleEx.Bold);
-        _regularFont = new XFont(chosenFamily, _settings.fontSize, XFontStyleEx.Regular);
-        _smallFont = new XFont(chosenFamily, _settings.smallFontSize, XFontStyleEx.Regular);
+
     }
 
     private static void EnsureFontResolverRegistered()
     {
-        if (GlobalFontSettings.FontResolver != null) return;
-        //var fontsDir = Path.Combine(AppContext.BaseDirectory, "fonts");
-        GlobalFontSettings.FontResolver = new StableFontResolver(Global._instance.font_path);
+        try
+        {
+            if (GlobalFontSettings.FontResolver != null) return;
+            //var fontsDir = Path.Combine(AppContext.BaseDirectory, "fonts");
+            GlobalFontSettings.FontResolver = new StableFontResolver(Global._instance.font_path);
+        }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while ensuring font resolver register state: {ex.Message}",Logger.LogType.Error);
+        }
+        
     }
 
     private static string StripStyleSuffix(string name)
     {
-        if (string.IsNullOrEmpty(name)) return name;
-        var idx = name.IndexOf('-');
-        if (idx < 0) idx = name.IndexOf('_');
-        if (idx > 0)
-            return name.Substring(0, idx);
-        return name;
+        try
+        {
+            if (string.IsNullOrEmpty(name)) return name;
+            var idx = name.IndexOf('-');
+            if (idx < 0) idx = name.IndexOf('_');
+            if (idx > 0)
+                return name.Substring(0, idx);
+            return name;
+        }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while stripping style suffix: {ex.Message}",Logger.LogType.Error);
+        }
+
+        return null;
+
     }
 
 
@@ -69,42 +97,50 @@ public class PdfBuilder
     public void CreateAddressLabelPdfFromAddressSetWithPlaceholder(int addressSetId, string placeholderText,
         string outputPath)
     {
-        // Find the AddressSet by ID
-        var addressSet = Settings._instance.addressSets.GetAddressSetByID(addressSetId);
-        if (addressSet == null)
-            throw new ArgumentException($"AddressSet with ID {addressSetId} not found");
-
-        if (addressSet.KasPersons == null || addressSet.KasPersons.Count == 0)
-            throw new ArgumentException($"AddressSet with ID {addressSetId} contains no addresses");
-
-        // Generate markdown addresses from all KasPersons in the set
-        //var addresses = new string?[addressSet.KasPersons.Count];
-        var addresses = new List<string>();
-
-        // find customer (owner) to include sender_address
-        string senderLine = null;
         try
         {
-            var owner = Settings._instance.customers.customers.FirstOrDefault(c => c.ID == addressSet.owner_id);
-            if (owner != null && !string.IsNullOrWhiteSpace(owner.sender_address))
-                senderLine = "<font6>" + owner.sender_address.Replace("\n", " ").Trim() + "</font6>\n";
+            // Find the AddressSet by ID
+            var addressSet = Settings._instance.addressSets.GetAddressSetByID(addressSetId);
+            if (addressSet == null)
+                throw new ArgumentException($"AddressSet with ID {addressSetId} not found");
+
+            if (addressSet.KasPersons == null || addressSet.KasPersons.Count == 0)
+                throw new ArgumentException($"AddressSet with ID {addressSetId} contains no addresses");
+
+            // Generate markdown addresses from all KasPersons in the set
+            //var addresses = new string?[addressSet.KasPersons.Count];
+            var addresses = new List<string>();
+
+            // find customer (owner) to include sender_address
+            string senderLine = null;
+            try
+            {
+                var owner = Settings._instance.customers.customers.FirstOrDefault(c => c.ID == addressSet.owner_id);
+                if (owner != null && !string.IsNullOrWhiteSpace(owner.sender_address))
+                    senderLine = "<font6>" + owner.sender_address.Replace("\n", " ").Trim() + "</font6>\n";
+            }
+            catch
+            {
+                senderLine = null;
+            }
+
+            for (var i = 0; i < addressSet.KasPersons.Count; i++)
+            {
+                var addr = AddressCreator.CreateFinalMarkdownString(addressSet.KasPersons[i].id);
+                if (string.IsNullOrWhiteSpace(addr)) continue;
+                if (!string.IsNullOrEmpty(senderLine))
+                    addresses.Add(senderLine + (addr ?? ""));
+                else
+                    addresses.Add(addr);
+            }
+
+            CreateAddressLabelPdfWithPlaceholder(addresses, placeholderText, outputPath);
         }
-        catch
+        catch (Exception ex)
         {
-            senderLine = null;
+            Logger.Log($"Error while creating address label pdf from address set with placeholder: {ex.Message}",Logger.LogType.Error);
         }
         
-        for (var i = 0; i < addressSet.KasPersons.Count; i++)
-        {
-            var addr = AddressCreator.CreateFinalMarkdownString(addressSet.KasPersons[i].id);
-            if (string.IsNullOrWhiteSpace(addr)) continue;
-            if (!string.IsNullOrEmpty(senderLine))
-                addresses.Add(senderLine + (addr ?? ""));
-            else
-                addresses.Add(addr);
-        }
-
-        CreateAddressLabelPdfWithPlaceholder(addresses, placeholderText, outputPath);
     }
 
     /// <summary>
@@ -115,26 +151,34 @@ public class PdfBuilder
     /// <param name="outputPath">Path where the PDF should be saved</param>
     public void CreateAddressLabelPdfWithPlaceholder(List<string> addresses, string placeholderText, string outputPath)
     {
-        if (addresses == null || addresses.Count == 0)
-            throw new ArgumentException("Addresses array cannot be null or empty");
-
-        var document = new PdfDocument();
-
-        var addressIndex = 0;
-        var isFirstCell = true;
-
-        while (addressIndex < addresses.Count || isFirstCell)
+        try
         {
-            var page = document.AddPage();
-            page.Size = PageSize.A4;
+                if (addresses == null || addresses.Count == 0)
+                    throw new ArgumentException("Addresses array cannot be null or empty");
 
-            using (var gfx = XGraphics.FromPdfPage(page))
-            {
-                DrawPageWithPlaceholder(gfx, addresses, ref addressIndex, ref isFirstCell, placeholderText);
-            }
+                var document = new PdfDocument();
+
+                var addressIndex = 0;
+                var isFirstCell = true;
+
+                while (addressIndex < addresses.Count || isFirstCell)
+                {
+                    var page = document.AddPage();
+                    page.Size = PageSize.A4;
+
+                    using (var gfx = XGraphics.FromPdfPage(page))
+                    {
+                        DrawPageWithPlaceholder(gfx, addresses, ref addressIndex, ref isFirstCell, placeholderText);
+                    }
+                }
+
+                document.Save(outputPath);
+        }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while creating address label pdf with placeholder: {ex.Message}",Logger.LogType.Error);
         }
         
-        document.Save(outputPath);
     }
 
     private void DrawPage(XGraphics gfx, List<string> addresses, ref int addressIndex)
@@ -159,193 +203,242 @@ public class PdfBuilder
     private void DrawPageWithPlaceholder(XGraphics gfx, List<string> addresses, ref int addressIndex,
         ref bool isFirstCell, string placeholderText)
     {
-        for (var row = 0; row < _settings.rowsPerPage; row++)
-        for (var col = 0; col < _settings.columnsPerPage; col++)
+        try
         {
-            var x = MmToPoints(_settings.pageMarginLeftMm + col * GetCellWidthMm());
-            var y = MmToPoints(_settings.pageMarginTopMm + row * GetCellHeightMm());
+            for (var row = 0; row < _settings.rowsPerPage; row++)
+            for (var col = 0; col < _settings.columnsPerPage; col++)
+            {
+                var x = MmToPoints(_settings.pageMarginLeftMm + col * GetCellWidthMm());
+                var y = MmToPoints(_settings.pageMarginTopMm + row * GetCellHeightMm());
 
-            // First cell: placeholder
-            if (isFirstCell)
-            {
-                DrawCell(gfx, x, y, placeholderText);
-                isFirstCell = false;
-            }
-            else if (addressIndex < addresses.Count)
-            {
-                DrawCell(gfx, x, y, addresses[addressIndex]);
-                addressIndex++;
-            }
-            else
-            {
-                DrawEmptyCell(gfx, x, y);
+                // First cell: placeholder
+                if (isFirstCell)
+                {
+                    DrawCell(gfx, x, y, placeholderText);
+                    isFirstCell = false;
+                }
+                else if (addressIndex < addresses.Count)
+                {
+                    DrawCell(gfx, x, y, addresses[addressIndex]);
+                    addressIndex++;
+                }
+                else
+                {
+                    DrawEmptyCell(gfx, x, y);
+                }
             }
         }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while drawing page with placholder: {ex.Message}",Logger.LogType.Error);
+        }
+        
     }
 
     private void DrawCell(XGraphics gfx, double x, double y, string? address)
     {
-        var cellWidthPoints = MmToPoints(GetCellWidthMm());
-        var cellHeightPoints = MmToPoints(GetCellHeightMm());
+        try
+        {
+            var cellWidthPoints = MmToPoints(GetCellWidthMm());
+            var cellHeightPoints = MmToPoints(GetCellHeightMm());
 
-        // Draw cell border
-        var rect = new XRect(x, y, cellWidthPoints, cellHeightPoints);
-        gfx.DrawRectangle(XPens.Black, rect);
+            // Draw cell border
+            var rect = new XRect(x, y, cellWidthPoints, cellHeightPoints);
+            gfx.DrawRectangle(XPens.Black, rect);
+
+            // Draw address content if available
+            if (!string.IsNullOrEmpty(address)) DrawMarkdownText(gfx, address, x, y, cellWidthPoints, cellHeightPoints);
+        }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while drawing cell: {ex.Message}",Logger.LogType.Error);
+        }
         
-        // Draw address content if available
-        if (!string.IsNullOrEmpty(address)) DrawMarkdownText(gfx, address, x, y, cellWidthPoints, cellHeightPoints);
     }
 
     private void DrawEmptyCell(XGraphics gfx, double x, double y)
     {
-        var cellWidthPoints = MmToPoints(GetCellWidthMm());
-        var cellHeightPoints = MmToPoints(GetCellHeightMm());
+        try
+        {
+            var cellWidthPoints = MmToPoints(GetCellWidthMm());
+            var cellHeightPoints = MmToPoints(GetCellHeightMm());
+
+            var rect = new XRect(x, y, cellWidthPoints, cellHeightPoints);
+            gfx.DrawRectangle(XPens.Black, rect);
+        }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while drawing empty cell: {ex.Message}",Logger.LogType.Error);
+        }
         
-        var rect = new XRect(x, y, cellWidthPoints, cellHeightPoints);
-        gfx.DrawRectangle(XPens.Black, rect);
     }
 
     private void DrawMarkdownText(XGraphics gfx, string text, double x, double y, double cellWidth, double cellHeight)
     {
-        var paddingLeftPoints = MmToPoints(_settings.cellPaddingLeftMm);
-        var paddingRightPoints = MmToPoints(_settings.cellPaddingRightMm);
-        var paddingTopPoints = MmToPoints(_settings.cellPaddingTopMm);
-        var paddingBottomPoints = MmToPoints(_settings.cellPaddingBottomMm);
-
-        var maxWidth = Math.Max(0, cellWidth - paddingLeftPoints - paddingRightPoints);
-
-        // Split text by newlines and remove empty trailing lines
-        var rawLines = text.Split(new[] { "\n" }, StringSplitOptions.None);
-        var lines = rawLines.Where(l => l != null).ToArray();
-
-        // Use a conservative line height in points
-        var lineHeight = _regularFont.Size * 1.2;
-
-        // Calculate total height of the text block
-        var totalHeight = lines.Length * lineHeight;
-
-        // Start drawing from the top of the cell (align addresses to top)
-        var startY = y + paddingTopPoints;
-
-        var currentY = startY;
-
-        foreach (var line in lines)
+        try
         {
-            // Stop if we've reached the top boundary
-            if (currentY + lineHeight > y + cellHeight - paddingBottomPoints + 0.001)
-                break;
+            var paddingLeftPoints = MmToPoints(_settings.cellPaddingLeftMm);
+            var paddingRightPoints = MmToPoints(_settings.cellPaddingRightMm);
+            var paddingTopPoints = MmToPoints(_settings.cellPaddingTopMm);
+            var paddingBottomPoints = MmToPoints(_settings.cellPaddingBottomMm);
 
-            // Parse and draw the line with markdown support
-            DrawLineWithMarkdown(gfx, line, x + paddingLeftPoints, currentY, maxWidth);
-            currentY += lineHeight;
+            var maxWidth = Math.Max(0, cellWidth - paddingLeftPoints - paddingRightPoints);
+
+            // Split text by newlines and remove empty trailing lines
+            var rawLines = text.Split(new[] { "\n" }, StringSplitOptions.None);
+            var lines = rawLines.Where(l => l != null).ToArray();
+
+            // Use a conservative line height in points
+            var lineHeight = _regularFont.Size * 1.2;
+
+            // Calculate total height of the text block
+            var totalHeight = lines.Length * lineHeight;
+
+            // Start drawing from the top of the cell (align addresses to top)
+            var startY = y + paddingTopPoints;
+
+            var currentY = startY;
+
+            foreach (var line in lines)
+            {
+                // Stop if we've reached the top boundary
+                if (currentY + lineHeight > y + cellHeight - paddingBottomPoints + 0.001)
+                    break;
+
+                // Parse and draw the line with markdown support
+                DrawLineWithMarkdown(gfx, line, x + paddingLeftPoints, currentY, maxWidth);
+                currentY += lineHeight;
+            }
         }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while drawing markdown text: {ex.Message}",Logger.LogType.Error);
+        }
+        
     }
 
     private void DrawLineWithMarkdown(XGraphics gfx, string line, double x, double y, double maxWidth)
     {
-        if (string.IsNullOrWhiteSpace(line)) return;
-        var currentX = x;
-        var i = 0;
-
-        while (i < line.Length)
+        try
         {
-            if (currentX - x >= maxWidth)
-                break;
+            if (string.IsNullOrWhiteSpace(line)) return;
+            var currentX = x;
+            var i = 0;
 
-            var remainingWidth = maxWidth - (currentX - x);
-
-            // Check for small-font tag <font6> ... </font6>
-            if (i <= line.Length - 7 && line.Substring(i, 7) == "<font6>")
+            while (i < line.Length)
             {
-                var endTag = line.IndexOf("</font6>", i + 7, StringComparison.Ordinal);
-                if (endTag != -1)
-                {
-                    var inner = line.Substring(i + 7, endTag - (i + 7));
-                    if (!string.IsNullOrEmpty(inner))
-                    {
-                        var measuredSmall = gfx.MeasureString(inner, _smallFont);
+                if (currentX - x >= maxWidth)
+                    break;
 
-                        if (measuredSmall.Width > remainingWidth)
+                var remainingWidth = maxWidth - (currentX - x);
+
+                // Check for small-font tag <font6> ... </font6>
+                if (i <= line.Length - 7 && line.Substring(i, 7) == "<font6>")
+                {
+                    var endTag = line.IndexOf("</font6>", i + 7, StringComparison.Ordinal);
+                    if (endTag != -1)
+                    {
+                        var inner = line.Substring(i + 7, endTag - (i + 7));
+                        if (!string.IsNullOrEmpty(inner))
                         {
-                            inner = TruncateTextToWidth(gfx, inner, _smallFont, remainingWidth);
-                            measuredSmall = gfx.MeasureString(inner, _smallFont);
+                            var measuredSmall = gfx.MeasureString(inner, _smallFont);
+
+                            if (measuredSmall.Width > remainingWidth)
+                            {
+                                inner = TruncateTextToWidth(gfx, inner, _smallFont, remainingWidth);
+                                measuredSmall = gfx.MeasureString(inner, _smallFont);
+                            }
+
+                            gfx.DrawString(inner, _smallFont, XBrushes.Black,
+                                new XRect(currentX, y, remainingWidth, _smallFont.Size * 1.2),
+                                XStringFormats.TopLeft);
+                            currentX += measuredSmall.Width;
                         }
 
-                        gfx.DrawString(inner, _smallFont, XBrushes.Black,
-                            new XRect(currentX, y, remainingWidth, _smallFont.Size * 1.2),
-                            XStringFormats.TopLeft);
-                        currentX += measuredSmall.Width;
+                        i = endTag + 8; // move past </font6>
+                        continue;
                     }
-
-                    i = endTag + 8; // move past </font6>
-                    continue;
                 }
-            }
 
-            // Check for bold marker (**)
-            if (i < line.Length - 1 && line[i] == '*' && line[i + 1] == '*')
-            {
-                // Find closing **
-                var endIndex = line.IndexOf("**", i + 2, StringComparison.Ordinal);
-                if (endIndex != -1)
+                // Check for bold marker (**)
+                if (i < line.Length - 1 && line[i] == '*' && line[i + 1] == '*')
                 {
-                    var boldText = line.Substring(i + 2, endIndex - (i + 2));
-                    var measured = gfx.MeasureString(boldText, _boldFont);
+                    // Find closing **
+                    var endIndex = line.IndexOf("**", i + 2, StringComparison.Ordinal);
+                    if (endIndex != -1)
+                    {
+                        var boldText = line.Substring(i + 2, endIndex - (i + 2));
+                        var measured = gfx.MeasureString(boldText, _boldFont);
+
+                        if (measured.Width > remainingWidth)
+                        {
+                            boldText = TruncateTextToWidth(gfx, boldText, _boldFont, remainingWidth);
+                            measured = gfx.MeasureString(boldText, _boldFont);
+                        }
+
+                        // Draw bold text and measure width accurately
+                        gfx.DrawString(boldText, _boldFont, XBrushes.Black,
+                            new XRect(currentX, y, remainingWidth, _boldFont.Size * 1.2),
+                            XStringFormats.TopLeft);
+                        currentX += measured.Width;
+                        i = endIndex + 2;
+                        continue;
+                    }
+                }
+
+                // Regular text until next ** or end of line
+                var nextBoldIndex = line.IndexOf("**", i, StringComparison.Ordinal);
+                var textEnd = nextBoldIndex == -1 ? line.Length : nextBoldIndex;
+                var regularText = line.Substring(i, textEnd - i);
+
+                if (!string.IsNullOrEmpty(regularText))
+                {
+                    var measured = gfx.MeasureString(regularText, _regularFont);
 
                     if (measured.Width > remainingWidth)
                     {
-                        boldText = TruncateTextToWidth(gfx, boldText, _boldFont, remainingWidth);
-                        measured = gfx.MeasureString(boldText, _boldFont);
+                        regularText = TruncateTextToWidth(gfx, regularText, _regularFont, remainingWidth);
+                        measured = gfx.MeasureString(regularText, _regularFont);
                     }
 
-                    // Draw bold text and measure width accurately
-                    gfx.DrawString(boldText, _boldFont, XBrushes.Black,
-                        new XRect(currentX, y, remainingWidth, _boldFont.Size * 1.2),
-                        XStringFormats.TopLeft);
+                    gfx.DrawString(regularText, _regularFont, XBrushes.Black,
+                        new XRect(currentX, y, remainingWidth, _regularFont.Size * 1.2), XStringFormats.TopLeft);
                     currentX += measured.Width;
-                    i = endIndex + 2;
-                    continue;
-                }
-            }
-
-            // Regular text until next ** or end of line
-            var nextBoldIndex = line.IndexOf("**", i, StringComparison.Ordinal);
-            var textEnd = nextBoldIndex == -1 ? line.Length : nextBoldIndex;
-            var regularText = line.Substring(i, textEnd - i);
-
-            if (!string.IsNullOrEmpty(regularText))
-            {
-                var measured = gfx.MeasureString(regularText, _regularFont);
-
-                if (measured.Width > remainingWidth)
-                {
-                    regularText = TruncateTextToWidth(gfx, regularText, _regularFont, remainingWidth);
-                    measured = gfx.MeasureString(regularText, _regularFont);
                 }
 
-                gfx.DrawString(regularText, _regularFont, XBrushes.Black,
-                    new XRect(currentX, y, remainingWidth, _regularFont.Size * 1.2), XStringFormats.TopLeft);
-                currentX += measured.Width;
+                i = textEnd;
             }
-
-            i = textEnd;
         }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while drawing markdown line: {ex.Message}",Logger.LogType.Error);
+        }
+        
     }
 
     private string TruncateTextToWidth(XGraphics gfx, string text, XFont font, double maxWidth)
     {
-        if (string.IsNullOrEmpty(text))
-            return text;
-
-        for (var len = text.Length; len > 0; len--)
+        try
         {
-            var truncated = text.Substring(0, len);
-            var measured = gfx.MeasureString(truncated, font);
-            if (measured.Width <= maxWidth)
-                return truncated;
+            if (string.IsNullOrEmpty(text))
+                return text;
+
+            for (var len = text.Length; len > 0; len--)
+            {
+                var truncated = text.Substring(0, len);
+                var measured = gfx.MeasureString(truncated, font);
+                if (measured.Width <= maxWidth)
+                    return truncated;
+            }
+
+            return string.Empty;
+        }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while truncating text to width: {ex.Message}",Logger.LogType.Error);
         }
 
-        return string.Empty;
+        return null;
     }
 
     /// <summary>

Tasks/StableFontResolver.cs

@@ -62,75 +62,102 @@ public class StableFontResolver : IFontResolver
                 }
             }
         }
-        catch
+        catch (Exception ex)
         {
-            // ignore resolver init errors
+            Logger.Log($"Error while initializing FontResolver: {ex.Message}",Logger.LogType.Error);
         }
     }
 
     private static string NormalizeStyle(string s)
     {
-        if (string.IsNullOrEmpty(s)) return "Regular";
-        s = s.ToLowerInvariant();
-        if (s.Contains("bold") && s.Contains("italic")) return "BoldItalic";
-        if (s.Contains("bold")) return "Bold";
-        if (s.Contains("italic") || s.Contains("oblique")) return "Italic";
-        if (s.Contains("regular") || s == "r") return "Regular";
-        return CultureInfo.InvariantCulture.TextInfo.ToTitleCase(s);
-    }
-
-    public FontResolverInfo ResolveTypeface(string familyName, bool isBold, bool isItalic)
-    {
-        // If requested family exists, pick corresponding style if available
-        string familyToUse = null;
-        if (!string.IsNullOrEmpty(familyName) && _families.ContainsKey(familyName))
-            familyToUse = familyName;
-
-        if (familyToUse == null && _orderedFamilies.Count > 0)
-            familyToUse = _orderedFamilies[0];
-
-        if (familyToUse == null)
-            return new FontResolverInfo("Arial");
-
-        var style = "Regular";
-        if (isBold && isItalic) style = "BoldItalic";
-        else if (isBold) style = "Bold";
-        else if (isItalic) style = "Italic";
-
-        // Face name format: Family#Style
-        return new FontResolverInfo($"{familyToUse}#{style}");
-    }
-
-    public byte[] GetFont(string faceName)
-    {
-        if (string.IsNullOrEmpty(faceName)) return null;
-
-        // faceName expected as "Family#Style" or just "Family"
-        var family = faceName;
-        var style = "Regular";
-        var idx = faceName.IndexOf('#');
-        if (idx >= 0)
+        try
         {
-            family = faceName.Substring(0, idx);
-            style = faceName.Substring(idx + 1);
+            if (string.IsNullOrEmpty(s)) return "Regular";
+            s = s.ToLowerInvariant();
+            if (s.Contains("bold") && s.Contains("italic")) return "BoldItalic";
+            if (s.Contains("bold")) return "Bold";
+            if (s.Contains("italic") || s.Contains("oblique")) return "Italic";
+            if (s.Contains("regular") || s == "r") return "Regular";
+            return CultureInfo.InvariantCulture.TextInfo.ToTitleCase(s);
         }
-
-        style = NormalizeStyle(style);
-
-        if (_families.TryGetValue(family, out var dict))
+        catch (Exception ex)
         {
-            // Try exact style
-            if (dict.TryGetValue(style, out var data)) return data;
-
-            // Fallback order
-            if (style != "Regular" && dict.TryGetValue("Regular", out data)) return data;
-            if (dict.TryGetValue("Bold", out data)) return data;
-            if (dict.TryGetValue("Italic", out data)) return data;
-
-            // Any available
-            foreach (var kv in dict) return kv.Value;
+            Logger.Log($"Error while normalizing style: {ex.Message}",Logger.LogType.Error);
         }
 
         return null;
     }
+
+    public FontResolverInfo ResolveTypeface(string familyName, bool isBold, bool isItalic)
+    {
+        try
+        {
+            // If requested family exists, pick corresponding style if available
+            string familyToUse = null;
+            if (!string.IsNullOrEmpty(familyName) && _families.ContainsKey(familyName))
+                familyToUse = familyName;
+
+            if (familyToUse == null && _orderedFamilies.Count > 0)
+                familyToUse = _orderedFamilies[0];
+
+            if (familyToUse == null)
+                return new FontResolverInfo("Arial");
+
+            var style = "Regular";
+            if (isBold && isItalic) style = "BoldItalic";
+            else if (isBold) style = "Bold";
+            else if (isItalic) style = "Italic";
+
+            // Face name format: Family#Style
+            return new FontResolverInfo($"{familyToUse}#{style}");
+        }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while resolving typeface: {ex.Message}",Logger.LogType.Error);
+        }
+
+        return null;
+    }
+
+    public byte[] GetFont(string faceName)
+    {
+        try
+        {
+            if (string.IsNullOrEmpty(faceName)) return null;
+
+            // faceName expected as "Family#Style" or just "Family"
+            var family = faceName;
+            var style = "Regular";
+            var idx = faceName.IndexOf('#');
+            if (idx >= 0)
+            {
+                family = faceName.Substring(0, idx);
+                style = faceName.Substring(idx + 1);
+            }
+
+            style = NormalizeStyle(style);
+
+            if (_families.TryGetValue(family, out var dict))
+            {
+                // Try exact style
+                if (dict.TryGetValue(style, out var data)) return data;
+
+                // Fallback order
+                if (style != "Regular" && dict.TryGetValue("Regular", out data)) return data;
+                if (dict.TryGetValue("Bold", out data)) return data;
+                if (dict.TryGetValue("Italic", out data)) return data;
+
+                // Any available
+                foreach (var kv in dict) return kv.Value;
+            }
+
+            return null;
+        }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while getting font: {ex.Message}",Logger.LogType.Error);
+        }
+
+        return [];
+    }
 }

Wiki/EditorWindow.axaml.cs

@@ -11,19 +11,23 @@ public partial class EditorWindow : Window
 
     public EditorWindow(string filename = "")
     {
-        InitializeComponent();
-        this.filename = filename;
-        if (!string.IsNullOrWhiteSpace(filename) && File.Exists(filename))
+        try
         {
-            var content = TbContent;
-            if (content != null) content.Text = File.ReadAllText(this.filename);
-            Title = "Wiki Editor - " + filename;
-        }
-        else if (!string.IsNullOrWhiteSpace(filename))
-        {
-            MessageBox.Show(null, "Die Datei existiert nicht", "Fehler");
-            Close();
-        }
+            InitializeComponent();
+            this.filename = PathUtilities.NormalizeFileSystemPath(filename);
+            if (!string.IsNullOrWhiteSpace(this.filename) && File.Exists(this.filename))
+            {
+                var content = TbContent;
+                if (content != null) content.Text = File.ReadAllText(this.filename);
+                Title = "Wiki Editor - " + filename;
+            }
+            else if (!string.IsNullOrWhiteSpace(this.filename))
+            {
+                MessageBox.Show(null, "Die Datei existiert nicht", "Fehler");
+                Close();
+            }
+        } catch  (Exception ex) { Logger.Log($"Error while : {ex.Message}",Logger.LogType.Error);}
+        
     }
 
     private void BtnSave_OnClick(object? sender, RoutedEventArgs e)
@@ -31,20 +35,22 @@ public partial class EditorWindow : Window
         try
         {
             File.WriteAllText(filename, TbContent.Text);
-            MainWindow._instance.PopulateNavTree();
+            MainWindow._instance.PopulateNavTree(filename, filename);
         }
         catch (Exception ex)
         {
             MessageBox.Show(null,
                 "Es ist ein Fehler aufgetreten. Bitte senden Sie ihn über git.mypapercloud.de/fierke/logofclient ein:\n" +
                 ex.StackTrace, "Fehler");
+            Logger.Log($"Error while : {ex.Message}",Logger.LogType.Error);
         }
     }
 
     private void BtnSaveAs_OnClick(object? sender, RoutedEventArgs e)
     {
         MessageBox.Show(null,
-            "Feature noch nicht implemetiert.\nErstelle neue Dateien unter " + Global._instance.wiki_storage_path,
+            "Feature noch nicht implemetiert.\nErstelle neue Dateien unter " +
+            PathUtilities.NormalizeFileSystemPath(Global._instance.wiki_storage_path),
             "Fehler");
     }
 
@@ -55,7 +61,7 @@ public partial class EditorWindow : Window
         try
         {
             File.Delete(filename);
-        } catch {}
+        } catch  (Exception ex) { Logger.Log($"Error while : {ex.Message}",Logger.LogType.Error);}
         
         MainWindow._instance.PopulateNavTree();
         Close();

Wiki/MarkdownRenderer.cs

@@ -1,3 +1,4 @@
+using System;
 using System.Collections.Generic;
 using Avalonia.Controls;
 using Avalonia.Media;
@@ -12,118 +13,128 @@ public static class MarkdownRenderer
 {
     public static Control Render(string markdown)
     {
-        var panel = new StackPanel { Spacing = 6 };
-        if (string.IsNullOrWhiteSpace(markdown)) return panel;
-
-        var doc = Markdown.Parse(markdown);
-
-        foreach (var block in doc)
+        try
         {
-            switch (block)
+            var panel = new StackPanel { Spacing = 6 };
+            if (string.IsNullOrWhiteSpace(markdown)) return panel;
+    
+            var doc = Markdown.Parse(markdown);
+    
+            foreach (var block in doc)
             {
-                case HeadingBlock hb:
+                switch (block)
                 {
-                    var text = GetInlineText(hb.Inline);
-                    var tb = new TextBlock
+                    case HeadingBlock hb:
                     {
-                        Text = text,
-                        FontWeight = FontWeight.Bold,
-                        Margin = new Avalonia.Thickness(0, hb.Level == 1 ? 6 : 2, 0, 2)
-                    };
-                    tb.FontSize = hb.Level switch { 1 => 22, 2 => 18, 3 => 16, _ => 14 };
-                    panel.Children.Add(tb);
-                    break;
-                }
-
-                case ParagraphBlock pb:
-                {
-                    var text = GetInlineText(pb.Inline);
-                    var tb = new TextBlock { Text = text, TextWrapping = Avalonia.Media.TextWrapping.Wrap };
-                    panel.Children.Add(tb);
-                    break;
-                }
-
-                case FencedCodeBlock cb:
-                {
-                    var sb = new StringBuilder();
-                    foreach (var line in cb.Lines.Lines)
-                    {
-                        sb.Append(line.ToString());
-                    }
-                    var codeBox = new TextBox
-                    {
-                        Text = sb.ToString(),
-                        FontFamily = "Consolas, monospace",
-                        IsReadOnly = true,
-                        AcceptsReturn = true
-                    };
-                    panel.Children.Add(codeBox);
-                    break;
-                }
-
-                case ListBlock lb:
-                {
-                    var sp = new StackPanel { Spacing = 2 };
-                    var number = 1;
-                    foreach (var item in lb)
-                    {
-                        if (item is ListItemBlock lib)
+                        var text = GetInlineText(hb.Inline);
+                        var tb = new TextBlock
                         {
-                            var itemText = new StringBuilder();
-                            foreach (var sub in lib)
-                            {
-                                if (sub is ParagraphBlock pp)
-                                    itemText.Append(GetInlineText(pp.Inline));
-                            }
-                            var tb = new TextBlock { Text = (lb.IsOrdered ? (number++ + ". ") : "• ") + itemText.ToString() };
-                            sp.Children.Add(tb);
-                        }
+                            Text = text,
+                            FontWeight = FontWeight.Bold,
+                            Margin = new Avalonia.Thickness(0, hb.Level == 1 ? 6 : 2, 0, 2)
+                        };
+                        tb.FontSize = hb.Level switch { 1 => 22, 2 => 18, 3 => 16, _ => 14 };
+                        panel.Children.Add(tb);
+                        break;
                     }
-                    panel.Children.Add(sp);
-                    break;
-                }
     
-                default:
-                {
-                    // fallback: raw text
-                    panel.Children.Add(new TextBlock { Text = block.ToString() });
-                    break;
+                    case ParagraphBlock pb:
+                    {
+                        var text = GetInlineText(pb.Inline);
+                        var tb = new TextBlock { Text = text, TextWrapping = Avalonia.Media.TextWrapping.Wrap };
+                        panel.Children.Add(tb);
+                        break;
+                    }
+    
+                    case FencedCodeBlock cb:
+                    {
+                        var sb = new StringBuilder();
+                        foreach (var line in cb.Lines.Lines)
+                        {
+                            sb.Append(line.ToString());
+                        }
+                        var codeBox = new TextBox
+                        {
+                            Text = sb.ToString(),
+                            FontFamily = "Consolas, monospace",
+                            IsReadOnly = true,
+                            AcceptsReturn = true
+                        };
+                        panel.Children.Add(codeBox);
+                        break;
+                    }
+    
+                    case ListBlock lb:
+                    {
+                        var sp = new StackPanel { Spacing = 2 };
+                        var number = 1;
+                        foreach (var item in lb)
+                        {
+                            if (item is ListItemBlock lib)
+                            {
+                                var itemText = new StringBuilder();
+                                foreach (var sub in lib)
+                                {
+                                    if (sub is ParagraphBlock pp)
+                                        itemText.Append(GetInlineText(pp.Inline));
+                                }
+                                var tb = new TextBlock { Text = (lb.IsOrdered ? (number++ + ". ") : "• ") + itemText.ToString() };
+                                sp.Children.Add(tb);
+                            }
+                        }
+                        panel.Children.Add(sp);
+                        break;
+                    }
+    
+                    default:
+                    {
+                        // fallback: raw text
+                        panel.Children.Add(new TextBlock { Text = block.ToString() });
+                        break;
+                    }
                 }
             }
-        }
     
-        return panel;
+            return panel;
+        } catch  (Exception ex) { Logger.Log($"Error while : {ex.Message}",Logger.LogType.Error);}
+
+        return new Panel();
     }
 
     private static string GetInlineText(ContainerInline? container)
     {
-        if (container == null) return string.Empty;
-        var sb = new StringBuilder();
-        foreach (var inline in container)
+        try
         {
-            switch (inline)
+            if (container == null) return string.Empty;
+            var sb = new StringBuilder();
+            foreach (var inline in container)
             {
-                case LiteralInline li:
-                    sb.Append(li.Content.ToString());
-                    break;
-                case EmphasisInline ei:
-                    sb.Append(GetInlineText(ei));
-                    break;
-                case CodeInline ci:
-                    sb.Append(ci.Content);
-                    break;
-                case LinkInline li:
-                    sb.Append(GetInlineText(li));
-                    break;
-                case LineBreakInline:
-                    sb.Append("\n");
-                    break;
-                default:
-                    sb.Append(inline.ToString());
-                    break;
+                switch (inline)
+                {
+                    case LiteralInline li:
+                        sb.Append(li.Content.ToString());
+                        break;
+                    case EmphasisInline ei:
+                        sb.Append(GetInlineText(ei));
+                        break;
+                    case CodeInline ci:
+                        sb.Append(ci.Content);
+                        break;
+                    case LinkInline li:
+                        sb.Append(GetInlineText(li));
+                        break;
+                    case LineBreakInline:
+                        sb.Append("\n");
+                        break;
+                    default:
+                        sb.Append(inline.ToString());
+                        break;
+                }
             }
-        }
 
-        return sb.ToString();
+            return sb.ToString();
+        } catch  (Exception ex) { Logger.Log($"Error while : {ex.Message}",Logger.LogType.Error);}
+
+        return null;
     }
 }

Wiki/WikiService.cs

@@ -13,7 +13,7 @@ public class WikiService
         // prefer global wiki storage path if configured
         if (Global._instance != null && !string.IsNullOrWhiteSpace(Global._instance.wiki_storage_path))
         {
-            var cfg = Global._instance.wiki_storage_path;
+            var cfg = PathUtilities.NormalizeFileSystemPath(Global._instance.wiki_storage_path);
             WikiRootFullPath = Path.IsPathRooted(cfg)
                 ? cfg
                 : Path.Combine(Directory.GetCurrentDirectory(), cfg);
@@ -25,8 +25,11 @@ public class WikiService
                 wikiRoot = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData),
                     "logofclient",
                     "wiki");
+            wikiRoot = PathUtilities.NormalizeFileSystemPath(wikiRoot);
             WikiRoot = wikiRoot;
-            WikiRootFullPath = Path.Combine(Directory.GetCurrentDirectory(), wikiRoot);
+            WikiRootFullPath = Path.IsPathRooted(wikiRoot)
+                ? wikiRoot
+                : Path.Combine(Directory.GetCurrentDirectory(), wikiRoot);
         }
     }
 

docs/logof_client_docs.tex

@@ -1,157 +0,0 @@
-\documentclass[a4paper]{article}
-\usepackage{graphicx}
-\usepackage[left=3cm,right=3cm,top=3cm, bottom=3cm]{geometry}
-\usepackage{amsmath}
-\usepackage{amssymb}
-\usepackage[headsepline, footsepline]{scrlayer-scrpage}
-\usepackage{enumerate}
-\usepackage{dsfont}
-\usepackage[]{mathtools}
-\usepackage[]{mathbbol}
-\usepackage{multicol}
-\usepackage{enumitem}
-\usepackage[hidelinks]{hyperref}
-\usepackage[]{circuitikz}
-\usepackage{tcolorbox} % Für schöne Boxen
-\usetikzlibrary{circuits.logic.IEC}
-\usepackage{tikz}
-\usepackage{tkz-graph}
-\usepackage{listings}
-\usepackage{xcolor}
-
-\setlist{itemsep=0.3em, topsep=0.5em, parsep=0pt}
-
-\newcommand{\bpf}[1]{%
-	\par\vspace{0.8\baselineskip}% Abstand vor der Überschrift
-	\noindent\textbf{#1}% Fettgedruckte Überschrift
-	\par\vspace{0.3\baselineskip}% Abstand nach der Überschrift
-}
-
-
-
-\renewcommand{\contentsname}{Inhaltsverzeichnis}
-\renewcommand{\figurename}{Grafik}
-\renewcommand{\partname}{Teil}
-\renewcommand{\epsilon}{\varepsilon}
-
-\definecolor{darkgrey}{HTML}{232327}
-
-% Zählerdefinition mit AUTOMATISCHEM SUBSECTION-RESET
-\newcounter{commoncounter}[subsection]
-\renewcommand{\thecommoncounter}{\thesubsection.\arabic{commoncounter}}
-
-% Zähler direkt bei Dokumentstart initialisieren
-\AtBeginDocument{\setcounter{commoncounter}{0}}
-
-% BOX-DEFINITIONEN mit korrigierter Zählerlogik
-\newtcolorbox{definitionbox}[1][]{
-	before title={\refstepcounter{commoncounter}}, % KRITISCH: vor dem Titel!
-	title={Definition \thecommoncounter: #1},
-	colback=white,
-	colframe=white!75!darkgrey,
-	fonttitle=\bfseries,
-	boxrule=0.6mm,
-	coltitle=black,
-	rounded corners,
-	before skip=10pt,
-	after skip=10pt
-}
-
-\newtcolorbox{examplebox}[1][]{
-	before title={\refstepcounter{commoncounter}}, % KRITISCH: vor dem Titel!
-	title={Beispiel \thecommoncounter: #1},
-	colback=white,
-	colframe=white!75!orange,
-	fonttitle=\bfseries,
-	boxrule=0.6mm,
-	coltitle=black,
-	rounded corners,
-	before skip=10pt,
-	after skip=10pt
-}
-
-\newtcolorbox{satzbox}[1][]{
-	before title={\refstepcounter{commoncounter}}, % KRITISCH: vor dem Titel!
-	title={Satz \thecommoncounter: #1},
-	colback=white,
-	colframe=white!75!blue,
-	fonttitle=\bfseries,
-	boxrule=0.6mm,
-	coltitle=black,
-	rounded corners,
-	before skip=10pt,
-	after skip=10pt
-}
-
-
-
-\definecolor{codegreen}{rgb}{0,0.6,0}
-\definecolor{codeblue}{rgb}{0,0,0.8}
-\definecolor{codered}{rgb}{0.8,0,0}
-\definecolor{lightgray}{rgb}{0.95,0.95,0.95}
-
-\lstdefinestyle{CSharpStyle}{
-	language=Python,
-	basicstyle=\ttfamily\small, % Monospace-Schrift
-	keywordstyle=\color{blue}\bfseries, % Schlüsselwörter fett und blau
-	stringstyle=\color{red}, % Strings rot
-	commentstyle=\color{codegreen}, % Kommentare grün
-	backgroundcolor=\color{lightgray}, % Hintergrundfarbe
-	numbers=left, % Zeilennummern links
-	numbersep=10px, % Abstand zwischen Zeilennummern und Code
-	numberstyle=\color{gray}\texttt,
-	stepnumber=1, % Zeilennummerierung Schrittweite 1
-	frame=single, % Rahmen um den Code
-	tabsize=4, % Tabulatorgröße
-	breaklines=true, % Zeilenumbruch aktivieren
-	captionpos=none,
-	showstringspaces=false,
-	xleftmargin=15pt, % Linker Rand für den Code (verschiebt alles nach rechts)
-}
-
-
-
-% Umgebung für Listings mit Titel und Zähler
-\newenvironment{codeexample}[1][]{
-	\refstepcounter{commoncounter} % Zähler erhöhen
-	\lstset{
-		style=CSharpStyle,
-		caption={Listing \thecommoncounter: #1}, % Titel mit Zähler
-		label={listing:\thecommoncounter}
-	}
-}{}
-
-
-\setlength{\parindent}{0pt}
-
-\title{\includegraphics[width=0.3\textwidth]{../assets/icon.png}\vspace{15pt}\\Logof Client\\
-	Handbuch}
-\author{Elias Fierke}
-\pagestyle{scrheadings}
-\date{Oktober 2025}
-\begin{document}
-	
-	\ohead{Oktober 2025}
-	\ofoot{Seite {\pagemark} von \pageref{LastPage}}
-	\ihead{Logof Client Handbuch}
-	\maketitle
-
-	
-	\tableofcontents
-	
-	\newpage
-	\part{Einführung}
-	
-	
-	\newpage
-	\part{Installation}
-	
-	\newpage
-	\part{Adress-Verwaltung}
-
-
-	
-
-	
-\label{LastPage}
-\end{document}