[fix?:] windows paths (ai-based since windows is boring)

# Conflicts:
#	MainWindow.axaml
#	MainWindow.axaml.cs

AddressPatch.cs

@@ -1,118 +0,0 @@
-using System;
-using System.IO;
-using System.Linq;
-using System.Reflection;
-using System.Text;
-
-public class AddressPatch
-{
-    public string refsid_is { get; set; } = "";
-    public string anrede_is { get; set; } = "";
-    public string titel_is { get; set; } = "";
-    public string vorname_is { get; set; } = "";
-    public string adel_is { get; set; } = "";
-    public string name_is { get; set; } = "";
-    public string namezus_is { get; set; } = "";
-    public string anredzus_is { get; set; } = "";
-    public string strasse_is { get; set; } = "";
-    public string strasse2_is { get; set; } = "";
-    public string plz_is { get; set; } = "";
-    public string ort_is { get; set; } = "";
-    public string land_is { get; set; } = "";
-    public string pplz_is { get; set; } = "";
-    public string postfach_is { get; set; } = "";
-    public string name1_is { get; set; } = "";
-    public string name2_is { get; set; } = "";
-    public string name3_is { get; set; } = "";
-    public string name4_is { get; set; } = "";
-    public string name5_is { get; set; } = "";
-    public string funktion_is { get; set; } = "";
-    public string funktion2_is { get; set; } = "";
-    public string abteilung_is { get; set; } = "";
-    public string funktionad_is { get; set; } = "";
-
-    public bool has_refsid { get; set; }
-    public bool has_anrede { get; set; }
-    public bool has_titel { get; set; }
-    public bool has_vorname { get; set; }
-    public bool has_adel { get; set; }
-    public bool has_name { get; set; }
-    public bool has_namezus { get; set; }
-    public bool has_anredzus { get; set; }
-    public bool has_strasse { get; set; }
-    public bool has_strasse2 { get; set; }
-    public bool has_plz { get; set; }
-    public bool has_ort { get; set; }
-    public bool has_land { get; set; }
-    public bool has_pplz { get; set; }
-    public bool has_postfach { get; set; }
-    public bool has_name1 { get; set; }
-    public bool has_name2 { get; set; }
-    public bool has_name3 { get; set; }
-    public bool has_name4 { get; set; }
-    public bool has_name5 { get; set; }
-    public bool has_funktion { get; set; }
-    public bool has_funktion2 { get; set; }
-    public bool has_abteilung { get; set; }
-    public bool has_funktionad { get; set; }
-
-    public static AddressPatch Import(Uri filename)
-    {
-        var patch = new AddressPatch();
-
-        // Alle Zeilen aus der Datei laden
-        var lines = File.ReadAllLines(filename.LocalPath);
-
-        // Alle Properties der Klasse (Strings und bools)
-        var properties = typeof(AddressPatch).GetProperties(BindingFlags.Public | BindingFlags.Instance);
-
-        // Nur die Properties, die mit _is enden (also die String-Werte)
-        var stringProps = properties.Where(p => p.PropertyType == typeof(string) && p.Name.EndsWith("_is"));
-
-        foreach (var prop in stringProps)
-        {
-            // Beispiel: prop.Name = "name_is"
-            var baseName = prop.Name.Substring(0, prop.Name.Length - 3); // "name"
-
-            // In der Datei wird nach "name:" gesucht (ohne _is)
-            var line = lines.FirstOrDefault(l => l.StartsWith(baseName + ":"));
-            if (line != null)
-            {
-                // Wert extrahieren (alles nach dem Doppelpunkt)
-                var value = line.Substring(line.IndexOf(':') + 1).Trim();
-
-                // Wert im Patch-Objekt setzen
-                prop.SetValue(patch, value);
-
-                // Passendes has_ Feld aktivieren, z.B. "has_name"
-                var hasProp = properties.FirstOrDefault(p => p.Name == "has_" + baseName);
-                if (hasProp != null && hasProp.PropertyType == typeof(bool)) hasProp.SetValue(patch, true);
-            }
-        }
-
-        return patch;
-    }
-
-
-    public override string ToString()
-    {
-        var properties = GetType().GetProperties(BindingFlags.Public | BindingFlags.Instance);
-        var stringProps = properties.Where(p => p.PropertyType == typeof(string) && p.Name.EndsWith("_is"));
-
-        var lines = new StringBuilder();
-
-        foreach (var prop in stringProps)
-        {
-            // passendes has_ Feld
-            var hasProp =
-                properties.FirstOrDefault(p => p.Name == "has_" + prop.Name.Substring(0, prop.Name.Length - 3));
-            if (hasProp != null && (bool)hasProp.GetValue(this))
-            {
-                var value = (string)prop.GetValue(this);
-                lines.AppendLine($"{prop.Name} => {value}");
-            }
-        }
-
-        return lines.ToString().TrimEnd();
-    }
-}

CsvBuilder.cs

@@ -1,60 +0,0 @@
-using System.Collections.Generic;
-using System.Text;
-
-namespace Logof_Client;
-
-public class CsvBuilder
-{
-    private readonly string Header;
-    private readonly List<object> Instances;
-    private readonly KasAddressList KasAddressList;
-
-    public CsvBuilder(string header, List<object> instances)
-    {
-        Header = header;
-        Instances = instances;
-    }
-
-    public CsvBuilder(string header, KasAddressList instances)
-    {
-        Header = header;
-        KasAddressList = instances;
-    }
-
-    public string? BuildKas()
-    {
-        var result = new StringBuilder();
-
-        result.AppendLine(Header);
-        foreach (var l in KasAddressList.KasPersons)
-
-            result.AppendLine(
-                l.refsid + "," +
-                l.anrede + "," +
-                l.titel + "," +
-                l.vorname + "," +
-                l.adel + "," +
-                l.name + "," +
-                l.namezus + "," +
-                l.anredzus + "," +
-                l.strasse + "," +
-                l.strasse2 + "," +
-                l.plz + "," +
-                l.ort + "," +
-                l.land + "," +
-                l.pplz + "," +
-                l.postfach + "," +
-                l.name1 + "," +
-                l.name2 + "," +
-                l.name3 + "," +
-                l.name4 + "," +
-                l.name5 + "," +
-                l.funktion + "," +
-                l.funktion2 + "," +
-                l.abteilung + "," +
-                l.funktionad);
-
-        // weitere Cases
-        return result.ToString();
-    }
-}

DataImport.cs

@@ -1,251 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Reflection;
-
-namespace Logof_Client;
-
-public class DataImport
-{
-    public static (bool, KasAddressList) ImportKasAddressList(Uri pathToCsv, AddressPatch patch = null,
-        char separator = ',')
-    {
-        if (patch == null)
-            return ImportKasAddressListWithoutPatch(pathToCsv, separator);
-        return ImportKasAddressListWithPatch(pathToCsv, patch, separator);
-    }
-
-    private static (bool, KasAddressList) ImportKasAddressListWithoutPatch(Uri pathToCsv, char separator)
-    {
-        if (!File.Exists(pathToCsv.LocalPath))
-        {
-            Console.WriteLine($"File not found: {pathToCsv}");
-            return (false, null);
-        }
-
-        using var reader = new StreamReader(pathToCsv.LocalPath);
-        var headerLine = reader.ReadLine();
-        if (headerLine == null)
-        {
-            Console.WriteLine("File is empty.");
-            return (false, null);
-        }
-
-        var imported = new KasAddressList(KasAddressList.GenerateName(Path.GetFileNameWithoutExtension(pathToCsv.LocalPath)));
-
-        while (!reader.EndOfStream)
-        {
-            var line = reader.ReadLine();
-            if (string.IsNullOrWhiteSpace(line))
-                continue;
-
-            var parts = line.Split(separator).Select(p => p.Trim()).ToArray();
-
-            if (parts.Length < 24)
-            {
-                Console.WriteLine($"Not enough columns in line: {line}");
-                continue;
-            }
-
-            try
-            {
-                var person = new KasPerson(
-                    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($"Error while parsing line: {line} - {ex.Message}");
-                Console.WriteLine(ex.StackTrace);
-                return (false, null);
-            }
-        }
-
-        return (true, imported);
-    }
-
-    private static (bool, KasAddressList) ImportKasAddressListWithPatch(Uri pathToCsv, AddressPatch patch,
-        char separator)
-    {
-        if (!File.Exists(pathToCsv.LocalPath))
-        {
-            Console.WriteLine($"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 = headerLine.Split(separator).Select(h => h.Trim()).ToArray();
-
-        var imported = new KasAddressList(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 = line.Split(separator).Select(p => p.Trim()).ToArray();
-
-            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 new_refsid = last_refsid;
-            if (!patch.has_refsid)
-                new_refsid = GenerateNewRefsid();
-            else
-                new_refsid = ParseInt(GetField("refsid"));
-
-            try
-            {
-                var person = new KasPerson(
-                    new_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);
-                return (false, null);
-            }
-        }
-
-        return (true, imported);
-
-        int GenerateNewRefsid()
-        {
-
-            int biggest = last_refsid;
-            foreach (var set in Settings._instance.addressSets.addresses)
-            {
-                foreach (var address in set.KasPersons)
-                {
-                    if (biggest < address.refsid)
-                    {
-                        biggest = address.refsid+1;
-                    }
-                }
-            }
-            last_refsid = biggest+1;
-            return last_refsid;
-        }
-    }
-
-
-    private static int ParseInt(string input)
-    {
-        return int.TryParse(input, out var result) ? result : 0;
-    }
-}

DataStore/DataStructures.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Threading.Tasks;
 
 namespace Logof_Client;
 
@@ -32,11 +33,16 @@ public class KasAddressList //Address-Set
         this.owner_id = owner_id;
     }
 
-    public static string GenerateName(string basic_type, bool? is_rest = false)
+    public static async Task<string> GenerateName(string basic_type, bool? is_rest = false)
     {
+        string pre = "";
+
         if (is_rest == true)
             return basic_type + " - " + DateTime.Now.ToShortDateString() + " - Rest";
-        return basic_type + " - " + DateTime.Now.ToShortDateString();
+        pre = basic_type + " - " + DateTime.Now.ToShortDateString();
+
+        var result = await NamingWindow.Show(MainWindow._instance, pre);
+        return string.IsNullOrWhiteSpace(result) ? pre : result;
     }
 
     // public void UpdateErrorList(List<KasPersonError> errorList)
@@ -54,6 +60,11 @@ public class KasAddressList //Address-Set
         var id = listItemName.Split(" - ")[0];
         return int.Parse(id);
     }
+
+    public override string ToString()
+    {
+        return Name + " (" + KasPersons.Count + " Einträge)";
+    }
 }
 
 public class KasPerson
@@ -62,6 +73,7 @@ public class KasPerson
 
     public KasPerson()
     {
+        id = GenerateNewID(0);
         refsid = 0;
         anrede = "";
         titel = "";
@@ -88,7 +100,7 @@ public class KasPerson
         funktionad = "";
     }
 
-    public KasPerson(int refsid,
+    public KasPerson(int id, int refsid,
         string anrede,
         string titel,
         string vorname,
@@ -113,6 +125,7 @@ public class KasPerson
         string abteilung,
         string funktionad)
     {
+        this.id = id;
         this.refsid = refsid;
         this.anrede = anrede;
         this.titel = titel;
@@ -139,6 +152,7 @@ public class KasPerson
         this.funktionad = funktionad;
     }
 
+    public int id { get; set; }
     public int refsid { get; set; }
     public string anrede { get; set; }
     public string titel { get; set; }
@@ -163,6 +177,34 @@ public class KasPerson
     public string funktion2 { get; set; }
     public string abteilung { get; set; }
     public string funktionad { get; set; }
+
+    public static int GenerateNewID(int base_id)
+    {
+        //var newid = 100000 + base_id;
+        int highest = 0;
+        foreach (var set in Settings._instance.addressSets.addresses)
+        {
+            foreach (var add in set.KasPersons)
+            {
+                if(add.id >= highest) highest = add.id+1;
+            }
+        }
+        
+
+        return highest + base_id + 1;
+    }
+
+    public override string ToString()
+    {
+        if (refsid != null && refsid != 0)
+        {
+            return refsid + " - " + name;
+        }
+        else
+        {
+            return id + " - " + name;
+        }
+    }
 }
 
 public class KasPersonError
@@ -177,4 +219,19 @@ public class KasPersonError
     //public int refsid { get; set; }
     public List<AddressCheck.ErrorTypes> errors { get; set; } = new();
     public List<AddressCheck.WarningTypes> warnings { get; set; } = new();
+
+    public string GetString()
+    {
+        var output = "";
+        foreach (var error in errors) output += error + ", ";
+
+        foreach (var warning in warnings) output += warning + ", ";
+
+        return output;
+    }
+
+    public string ToString(KasPerson person)
+    {
+        return "ID:"+person.id + "; Name: " +person.name +"; Errors: " + GetString();
+    }
 }

DataStore/Settings.cs

@@ -0,0 +1,226 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using Newtonsoft.Json;
+
+namespace Logof_Client;
+
+public class Settings
+{
+    public static Settings _instance = new();
+    public AddressSets addressSets = new();
+    public Customers customers = new();
+    public PdfExportSettings pdfExport { get; set; } = new();
+
+    // public string settingsPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData),
+    //     "logofclient", "config.json");
+
+    public Settings()
+    {
+        _instance = this;
+    }
+
+
+    public static void Save()
+    {
+        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(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;
+
+        try
+        {
+            var contents = File.ReadAllText(Path.Combine(Global._instance.config_path, "config.json"));
+            _instance = JsonConvert.DeserializeObject<Settings>(contents);
+            MainWindow._instance.RefreshCustomerItems();
+        }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while reading settings. Generating new... {ex.Message}", Logger.LogType.Warning);
+
+            _instance = new Settings();
+        }
+    }
+}
+
+public class PdfExportSettings
+{
+    public double cellPaddingTopMm { get; set; } = 5;
+    public double cellPaddingBottomMm { get; set; } = 5;
+    public double cellPaddingLeftMm { get; set; } = 5;
+    public double cellPaddingRightMm { get; set; } = 5;
+
+    public double pageMarginTopMm { get; set; } = 0;
+    public double pageMarginBottomMm { get; set; } = 0;
+    public double pageMarginLeftMm { get; set; } = 0;
+    public double pageMarginRightMm { get; set; } = 0;
+
+    public int rowsPerPage { get; set; } = 7;
+    public int columnsPerPage { get; set; } = 3;
+
+    public double fontSize { get; set; } = 9;
+    public double smallFontSize { get; set; } = 6;
+}
+
+public class Global
+{
+    public static Global _instance;
+
+    public Global()
+    {
+        _instance = this;
+    }
+
+    public string config_path { get; set; } = Path.Combine(
+        Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData),
+        "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",
+        "wiki");
+
+    public List<Country> countries { get; set; } = new();
+    public string font_path { get; set; } = Path.Combine(AppContext.BaseDirectory, "assets", "fonts");
+
+    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"));
+        var json = JsonConvert.SerializeObject(_instance, Formatting.Indented);
+        File.WriteAllText(
+            Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "logofclient",
+                "global.config"), json);
+    }
+
+    public static void Load()
+    {
+        // if (!File.Exists(Path.Combine(
+        //         Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "logofclient",
+        //         "global.config")))
+        //     File.Create(Path.Combine(
+        //         Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "logofclient",
+        //         "global.config"));
+        try
+        {
+            var contents = File.ReadAllText(Path.Combine(
+                Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "logofclient",
+                "global.config"));
+            _instance = JsonConvert.DeserializeObject<Global>(contents) ?? new Global();
+            _instance.NormalizePaths();
+        }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while reading global settings. Generating new... {ex.Message}", Logger.LogType.Warning);
+            _instance = new 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
+{
+    public List<Customer> customers = new();
+    public Customer current { get; set; } = null;
+}
+
+public class Customer
+{
+    public Customer()
+    {
+        var highestID = 0;
+        foreach (var customer in Settings._instance.customers.customers)
+            if (customer.ID > highestID)
+                highestID = customer.ID;
+
+        ID = highestID + 1;
+    }
+    
+    public override string ToString()
+    {
+        return name;
+    }
+
+    public string name { get; set; } = "";
+    public string description { get; set; } = "";
+    public string sender_address { get; set; } = "";
+    public AddressPatch patch { get; set; }
+    public char separator { get; set; } = ',';
+    public int ID { get; }
+
+
+    // public static int GetIDByCustomerListItem(string item_content)
+    // {
+    //     var id = item_content.Split(" - ")[0];
+    //     return int.Parse(id);
+    // }
+}
+
+public class AddressSets
+{
+    public List<KasAddressList> addresses = new();
+
+    public KasAddressList GetAddressSetByID(int ID)
+    {
+        foreach (var i in addresses)
+            if (i.ID == ID)
+                return i;
+
+        return null;
+    }
+}
+
+public class Country
+{
+    public Country(string name, string translation, List<string> alternatives)
+    {
+        this.name = name;
+        this.translation = translation;
+        this.alternatives = alternatives;
+    }
+
+    public Country(string name)
+    {
+        this.name = name;
+        translation = "";
+        alternatives = new List<string>();
+    }
+
+    public Country()
+    {
+    }
+
+    public string? name { get; set; }
+    public string translation { get; set; }
+    public List<string> alternatives { get; set; }
+
+    public static Country GetByName(string name)
+    {
+        foreach (var country in Global._instance.countries)
+            if (country.name == name)
+                return country;
+
+        return null;
+    }
+}

Logger.cs

@@ -0,0 +1,40 @@
+using System;
+using System.IO;
+using Newtonsoft.Json;
+
+namespace Logof_Client;
+
+public static class Logger
+{
+    public static void Log(string text, LogType logType = LogType.Info)
+    {
+        try
+        {
+            string config_path = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData),
+                "logofclient");
+            if (!Directory.Exists(config_path))
+                Directory.CreateDirectory(config_path);
+
+            string log_path = Path.Combine(config_path, $"log-{DateTime.Now:dd-MM-yy}.log");
+            if(!File.Exists(log_path))
+                File.Create(log_path).Close();
+
+            string line = $"[{DateTime.Now:dd.MM.yyyy - hh:mm:ss}]: ({logType.ToString()}) {text}";
+            Console.WriteLine(line);
+            
+            File.AppendAllLines(log_path, [line]);
+        }
+        catch (Exception ex)
+        {
+            Console.WriteLine(ex);
+        }
+        
+    }
+
+    public enum LogType
+    {
+        Error,
+        Warning,
+        Info
+    }
+}

Logof Client.csproj

@@ -19,8 +19,21 @@
             <IncludeAssets Condition="'$(Configuration)' != 'Debug'">None</IncludeAssets>
             <PrivateAssets Condition="'$(Configuration)' != 'Debug'">All</PrivateAssets>
         </PackageReference>
+        <PackageReference Include="ISO3166" Version="1.0.4"/>
         <PackageReference Include="Lucide.Avalonia" Version="0.1.35"/>
         <PackageReference Include="Newtonsoft.Json" Version="13.0.4"/>
+        <PackageReference Include="PdfSharp" Version="6.1.1"/>
+    </ItemGroup>
+
+    <ItemGroup>
+        <PackageReference Include="Markdig" Version="0.30.3"/>
+        <PackageReference Include="AvaloniaEdit" Version="0.10.12"/>
+    </ItemGroup>
+
+    <ItemGroup>
+        <None Include="wiki\**\*.md">
+            <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+        </None>
     </ItemGroup>
 
     <ItemGroup>
@@ -37,4 +50,12 @@
             <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
         </AvaloniaResource>
     </ItemGroup>
+
+    <ItemGroup>
+        <Content Include="assets\fonts\**\*.*">
+            <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+        </Content>
+
+        <Folder Include="assets\fonts\"/>
+    </ItemGroup>
 </Project>

MainWindow.axaml

@@ -28,7 +28,7 @@
                             <Label FontSize="20" Content="Addressverwaltung" VerticalContentAlignment="Center" />
                         </StackPanel>
                     </TabItem.Header>
-                    <Grid RowDefinitions="2*,*,*">
+                    <Grid RowDefinitions="3*,80,2*">
                         <Grid ColumnDefinitions="*,*" Grid.Row="0">
                             <!-- Kunden -->
                             <Grid Margin="30,30,10,30">
@@ -67,7 +67,28 @@
                                          SelectionChanged="LstCustomerAdressSets_OnSelectionChanged"
                                          Background="AliceBlue"
                                          Margin="0,5,0,5"
-                                         SelectionMode="Multiple,Toggle" />
+                                         SelectionMode="Multiple,Toggle">
+                                    <ListBox.ContextMenu>
+                                        <ContextMenu>
+                                            <MenuItem x:Name="MnIAdSetRename" Click="MnIAdSetRename_OnClick">
+                                                <MenuItem.Header>
+                                                    <StackPanel Orientation="Horizontal">
+                                                        <LucideIcon Kind="Pencil" Width="12" Height="12" Size="12" />
+                                                        <Label Content="Umbenennen" VerticalContentAlignment="Center" />
+                                                    </StackPanel>
+                                                </MenuItem.Header>
+                                            </MenuItem>
+                                            <MenuItem x:Name="MnIAdSetDelete" Click="MnIAdSetRename_OnClick" IsEnabled="False">
+                                                <MenuItem.Header>
+                                                    <StackPanel Orientation="Horizontal">
+                                                        <LucideIcon Kind="Trash" Width="12" Height="12" Size="12" />
+                                                        <Label Content="Löschen" VerticalContentAlignment="Center" />
+                                                    </StackPanel>
+                                                </MenuItem.Header>
+                                            </MenuItem>
+                                        </ContextMenu>
+                                    </ListBox.ContextMenu>
+                                </ListBox>
 
                                 <Button Grid.Row="2" HorizontalAlignment="Stretch" x:Name="BtnCustomerAddressSetImport"
                                         Click="BtnCustomerAddressSetImport_OnClick">
@@ -78,23 +99,10 @@
                                 </Button>
                             </Grid>
                         </Grid>
-                        <!-- <Grid Grid.Row="0"> -->
+                        <!-- <Grid ColumnDefinitions="*,*,*" Grid.Row="1"> -->
-                        <!--     <StackPanel Orientation="Horizontal" VerticalAlignment="Center" -->
+                            <StackPanel Grid.Row="1"  Orientation="Horizontal" Spacing="10" HorizontalAlignment="Center"
-                        <!--                 HorizontalAlignment="Center"> -->
-                        <!--         <TextBox x:Name="TbFilename" Watermark="Dateipfad" Width="400" -->
-                        <!--                  VerticalContentAlignment="Center" /> -->
-                        <!--         <Button x:Name="BtnChooseFile" Margin="10,0,0,0" Click="BtnChooseFile_OnClick"> -->
-                        <!--             <StackPanel Orientation="Horizontal"> -->
-                        <!--                 <LucideIcon Kind="FolderOpen" Width="16" Height="16" Size="16" /> -->
-                        <!--                 <Label Content="Öffnen" VerticalContentAlignment="Center" /> -->
-                        <!--             </StackPanel> -->
-                        <!--         </Button> -->
-                        <!--     </StackPanel> -->
-                        <!-- </Grid> -->
-                        <Grid Grid.ColumnDefinitions="*,*" Grid.Row="1">
-                            <StackPanel Grid.Column="0" Width="250" Orientation="Vertical" HorizontalAlignment="Right"
                                         Margin="0,0,5,0">
-                                <Button HorizontalAlignment="Stretch" HorizontalContentAlignment="Center"
+                                <Button  Width="250" HorizontalContentAlignment="Center"
                                         Margin="0,0,0,10" IsEnabled="False"
                                         x:Name="BtnCheck" Click="BtnCheck_OnClick">
                                     <StackPanel Orientation="Horizontal">
@@ -103,7 +111,7 @@
                                                FontWeight="Bold" />
                                     </StackPanel>
                                 </Button>
-                                <Button HorizontalAlignment="Stretch" IsEnabled="False"
+                                <Button Width="250" IsEnabled="False"
                                         HorizontalContentAlignment="Center"
                                         Click="BtnCombine_OnClick" x:Name="BtnCombine"
                                         Margin="0,0,0,10">
@@ -113,19 +121,7 @@
                                                FontWeight="Bold" />
                                     </StackPanel>
                                 </Button>
-                                <Button HorizontalAlignment="Stretch" IsEnabled="False"
+                                <Button Width="250" IsEnabled="False" Click="BtnShorten_OnClick"
-                                        HorizontalContentAlignment="Center" x:Name="BtnRepair"
-                                        Margin="0,0,0,10">
-                                    <StackPanel Orientation="Horizontal">
-                                        <LucideIcon Kind="Hammer" Width="36" Height="36" />
-                                        <Label Content="Reparieren" VerticalContentAlignment="Center" FontSize="15"
-                                               FontWeight="Bold" />
-                                    </StackPanel>
-                                </Button>
-                            </StackPanel>
-                            <StackPanel Grid.Column="1" Width="250" Orientation="Vertical" HorizontalAlignment="Left"
-                                        Margin="5,0,0,0">
-                                <Button HorizontalAlignment="Stretch" IsEnabled="False"
                                         HorizontalContentAlignment="Center" x:Name="BtnShorten"
                                         Margin="0,0,0,10">
                                     <StackPanel Orientation="Horizontal">
@@ -134,7 +130,8 @@
                                                FontWeight="Bold" />
                                     </StackPanel>
                                 </Button>
-                                <Button HorizontalAlignment="Stretch" IsEnabled="False"
+                                <Button Width="250" IsEnabled="False"
+                                        Click="BtnGenerateLabels_OnClick"
                                         HorizontalContentAlignment="Center" x:Name="BtnGenerateLabels"
                                         Margin="0,0,0,10">
                                     <StackPanel Orientation="Horizontal">
@@ -144,8 +141,17 @@
                                                FontWeight="Bold" />
                                     </StackPanel>
                                 </Button>
+                                <Button Width="250" IsEnabled="False"
+                                        HorizontalContentAlignment="Center" x:Name="BtnRepair"
+                                        Margin="0,0,0,10">
+                                    <StackPanel Orientation="Horizontal">
+                                        <LucideIcon Kind="Hammer" Width="36" Height="36" />
+                                        <Label Content="Reparieren" VerticalContentAlignment="Center" FontSize="15"
+                                               FontWeight="Bold" />
                                     </StackPanel>
-                        </Grid>
+                                </Button>
+                            </StackPanel>
+                        <!-- </Grid> -->
                         <Grid Grid.Row="2" Margin="20" IsVisible="True" x:Name="GrdCalcMan">
                             <Image Source="assets/calc_man.png" VerticalAlignment="Center" HorizontalAlignment="Center" />
                         </Grid>
@@ -160,10 +166,12 @@
                                         <StackPanel Orientation="Vertical">
                                             <StackPanel Orientation="Horizontal">
                                                 <LucideIcon Kind="SquaresUnite" Width="36" Height="36" />
-                                                <Label Content="Vereinigung" VerticalContentAlignment="Center" FontSize="15"
+                                                <Label Content="Vereinigung" VerticalContentAlignment="Center"
+                                                       FontSize="15"
                                                        FontWeight="Bold" />
                                             </StackPanel>
-                                            <Label FontSize="9" Content="Fügt Elemente beider Mengen in eine Menge zusammen"></Label>
+                                            <Label FontSize="9"
+                                                   Content="Fügt Elemente beider Mengen in eine Menge zusammen" />
                                         </StackPanel>
                                     </Button>
                                     <Button HorizontalAlignment="Stretch" MinWidth="240"
@@ -177,7 +185,8 @@
                                                        FontSize="15"
                                                        FontWeight="Bold" />
                                             </StackPanel>
-                                            <Label FontSize="9" Content="Überträgt nur doppelte Elemente in die neue Menge"></Label>
+                                            <Label FontSize="9"
+                                                   Content="Überträgt nur doppelte Elemente in die neue Menge" />
                                         </StackPanel>
 
                                     </Button>
@@ -192,7 +201,8 @@
                                                        FontSize="15"
                                                        FontWeight="Bold" />
                                             </StackPanel>
-                                            <Label FontSize="9" Content="Elemente der ersten Menge ohne Elemente der zweiten Menge"></Label>
+                                            <Label FontSize="9"
+                                                   Content="Elemente der ersten Menge ohne Elemente der zweiten Menge" />
                                         </StackPanel>
 
                                     </Button>
@@ -203,16 +213,90 @@
                                         <StackPanel Orientation="Vertical">
                                             <StackPanel Orientation="Horizontal">
                                                 <LucideIcon Kind="SquaresExclude" Width="36" Height="36" />
-                                                <Label Content="Symmetrische Differenz" VerticalContentAlignment="Center"
+                                                <Label Content="Symmetrische Differenz"
+                                                       VerticalContentAlignment="Center"
                                                        FontSize="15"
                                                        FontWeight="Bold" />
                                             </StackPanel>
-                                            <Label FontSize="9" Content="Nur Elemente, die NICHT doppelt sind"></Label>
+                                            <Label FontSize="9" Content="Nur Elemente, die NICHT doppelt sind" />
                                         </StackPanel>
-
                                     </Button>
                                 </StackPanel>
-                                <CheckBox HorizontalAlignment="Center" x:Name="CbMergeExportUnmerged" IsChecked="False">Speichere Unverarbeitete in neuem Verteiler</CheckBox>
+                                <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="50">
+                                    <StackPanel Orientation="Vertical" >
+                                        <RadioButton Content="Vergleiche nach refsid" IsChecked="True" x:Name="RbComprefsid"></RadioButton>
+                                        <RadioButton Content="Vergleiche nach finaler Adresse" IsChecked="False" x:Name="RbCompfinAd"></RadioButton>
+                                    </StackPanel>
+                                    <StackPanel Orientation="Vertical">
+                                        <CheckBox HorizontalAlignment="Left" x:Name="CbMergeExportUnmerged" IsChecked="False">Speichere Unverarbeitete in neuem Verteiler</CheckBox>
+                                        <CheckBox HorizontalAlignment="Left" x:Name="CbMergeDeleteOld" IsChecked="False">Lösche ursprüngliche Sets</CheckBox>
+                                    </StackPanel>
+                                </StackPanel>
+                            </StackPanel>
+                        </Grid>
+                        <Grid Grid.Row="2" Margin="20" ColumnDefinitions="*,5*,*" IsVisible="False" x:Name="GrdExportMarginOptions">
+                            <StackPanel Grid.Column="1" Orientation="Vertical" Spacing="20">
+                                <Grid ColumnDefinitions="*,*,*" ColumnSpacing="20">
+                                    <StackPanel Orientation="Vertical" Spacing="10">
+                                        <Grid ColumnDefinitions="*,*">
+                                            <Label Grid.Column="0" Content="Zellenrand oben (mm)"></Label>
+                                            <NumericUpDown Grid.Column="1" x:Name="NudExpMargCellPaddingTop" Minimum="0" Maximum="20" Value="5"></NumericUpDown>
+                                        </Grid>
+                                        <Grid ColumnDefinitions="*,*">
+                                            <Label Grid.Column="0" Content="Zellenrand unten (mm)"></Label>
+                                            <NumericUpDown Grid.Column="1" x:Name="NudExpMargCellPaddingBot" Minimum="0" Maximum="20" Value="5"></NumericUpDown>
+                                        </Grid>
+                                        <Grid ColumnDefinitions="*,*">
+                                            <Label Grid.Column="0" Content="Zellenrand links (mm)"></Label>
+                                            <NumericUpDown Grid.Column="1" x:Name="NudExpMargCellPaddingLeft" Minimum="0" Maximum="20" Value="5"></NumericUpDown>
+                                        </Grid>
+                                        <Grid ColumnDefinitions="*,*">
+                                            <Label Grid.Column="0" Content="Zellenrand rechts (mm)"></Label>
+                                            <NumericUpDown Grid.Column="1" x:Name="NudExpMargCellPaddingRight" Minimum="0" Maximum="20" Value="5"></NumericUpDown>
+                                        </Grid>
+                                    </StackPanel>
+                                    
+                                    <StackPanel Grid.Column="1" Orientation="Vertical" Spacing="10">
+                                        <Grid ColumnDefinitions="*,*">
+                                            <Label Content="Zellenabstand oben"></Label>
+                                            <NumericUpDown Grid.Column="1" x:Name="TbExpMargMarginTop" Minimum="0" Maximum="20" Value="0"></NumericUpDown>
+                                        </Grid>
+                                        <Grid ColumnDefinitions="*,*">
+                                            <Label Content="Zellenabstand unten"></Label>
+                                            <NumericUpDown Grid.Column="1" x:Name="TbExpMargMarginBottom" Minimum="0" Maximum="20" Value="0"></NumericUpDown>
+                                        </Grid>
+                                        <Grid ColumnDefinitions="*,*">
+                                            <Label Content="Zellenabstand rechts"></Label>
+                                            <NumericUpDown Grid.Column="1" x:Name="TbExpMargMarginRight" Minimum="0" Maximum="20" Value="0"></NumericUpDown>
+                                        </Grid>
+                                        <Grid ColumnDefinitions="*,*">
+                                            <Label Content="Zellenabstand links"></Label>
+                                            <NumericUpDown Grid.Column="1" x:Name="TbExpMargMarginLeft" Minimum="0" Maximum="20" Value="0"></NumericUpDown>
+                                        </Grid>
+                                    </StackPanel>
+                                    
+                                    <StackPanel Grid.Column="2" Orientation="Vertical" Spacing="10">
+                                        <Grid ColumnDefinitions="*,*">
+                                            <Label Content="Zeilen pro Seite"></Label>
+                                            <NumericUpDown Grid.Column="1" x:Name="TbExpMargRowsPerPage" Minimum="1" Maximum="10" Value="7"></NumericUpDown>
+                                        </Grid>
+                                        <Grid ColumnDefinitions="*,*">
+                                            <Label Grid.Column="0" Content="Spalten pro Seite"></Label>
+                                            <NumericUpDown Grid.Column="1" x:Name="NudExpMargColumnsPerPage" Minimum="1" Maximum="8" Value="3"></NumericUpDown>
+                                        </Grid>
+                                        <Grid ColumnDefinitions="*,*">
+                                            <Label Grid.Column="0" Content="Schriftgröße (groß)"></Label>
+                                            <NumericUpDown Grid.Column="1" x:Name="NudExpMargFontSize" Minimum="5" Maximum="30" Value="9"></NumericUpDown>
+                                        </Grid>
+                                        <Grid ColumnDefinitions="*,*">
+                                            <Label Grid.Column="0" Content="Schriftgröße (klein)"></Label>
+                                            <NumericUpDown Grid.Column="1" x:Name="NudExpMargSmallFontSize" Minimum="3" Maximum="30" Value="6"></NumericUpDown>
+                                        </Grid>
+                                    </StackPanel>
+                                </Grid>
+                                <StackPanel Orientation="Horizontal" HorizontalAlignment="Center">
+                                    <Button Content="Start" Click="BtnStartGenerateLabels_OnClick"></Button>
+                                </StackPanel>
                             </StackPanel>
                         </Grid>
                     </Grid>
@@ -241,6 +325,49 @@
                         </StackPanel>
                     </TabItem.Header>
                 </TabItem>
+                <TabItem IsEnabled="True">
+                    <TabItem.Header>
+                        <StackPanel Orientation="Horizontal">
+                            <LucideIcon Kind="LibraryBig" Width="32" Height="32" Size="32" />
+                            <Label FontSize="20" Content="Wiki" VerticalContentAlignment="Center" />
+                        </StackPanel>
+                    </TabItem.Header>
+                    <Grid ColumnDefinitions="300,*">
+                        <Border Grid.Column="0" Background="#FFF" BorderBrush="#DDD" BorderThickness="0,0,1,0">
+                            <StackPanel>
+                                <StackPanel Spacing="10" Orientation="Horizontal" Margin="10">
+                                    <Button Content="+ Datei" x:Name="BtnWikiAddFile"
+                                            Click="BtnWikiAddFile_OnClick" />
+                                    <Button Content="+ Ordner" x:Name="BtnWikiAddFolder"
+                                            Click="BtnWikiAddFolder_OnClick" />
+                                </StackPanel>
+                                <ScrollViewer HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Auto">
+                                    <TreeView Name="NavTree" Margin="10" />
+                                </ScrollViewer>
+                            </StackPanel>
+                        </Border>
+
+                        <Grid Grid.Column="1">
+                            <Grid.RowDefinitions>
+                                <RowDefinition Height="Auto" />
+                                <RowDefinition Height="*" />
+                            </Grid.RowDefinitions>
+
+                            <StackPanel Orientation="Horizontal" Margin="8" Grid.Row="0">
+                                <Button Name="EditButton" Content="Edit" HorizontalContentAlignment="Center"
+                                        IsEnabled="False" Width="80" Margin="0,0,8,0" />
+                                <Button Name="OpenFolderButton" HorizontalContentAlignment="Center"
+                                        Content="Open Folder" Width="100" />
+                            </StackPanel>
+
+                            <Border Grid.Row="1" Margin="8" BorderBrush="#DDD" BorderThickness="1" CornerRadius="4">
+                                <ScrollViewer>
+                                    <StackPanel Name="PreviewPanel" Margin="8" />
+                                </ScrollViewer>
+                            </Border>
+                        </Grid>
+                    </Grid>
+                </TabItem>
                 <TabItem IsEnabled="True">
                     <TabItem.Header>
                         <StackPanel Orientation="Horizontal">
@@ -256,13 +383,14 @@
                                     <Label FontSize="16" Content="Global" VerticalContentAlignment="Center" />
                                 </StackPanel>
                             </TabItem.Header>
-                            <StackPanel Orientation="Vertical">
+                            <StackPanel Orientation="Vertical" Spacing="10">
                                 <Grid ColumnDefinitions="400,*">
                                     <Label Grid.Column="0">config-Datei</Label>
-                                    <StackPanel Grid.Column="1" Orientation="Horizontal" Spacing="5">
+                                    <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>
+                                            <Button x:Name="BtnConfigPath" HorizontalAlignment="Right">
                                                 <Button.Content>
                                                     <StackPanel Orientation="Horizontal">
                                                         <LucideIcon Kind="File" Width="16" Height="16" Size="16" />
@@ -271,6 +399,41 @@
                                                 </Button.Content>
                                             </Button>
                                         </StackPanel>
+                                    </StackPanel>
+                                </Grid>
+                                <Grid ColumnDefinitions="400,*">
+                                    <Label Grid.Column="0">Wiki-Pfad</Label>
+                                    <StackPanel Grid.Column="1" Orientation="Vertical" Spacing="5">
+                                        <StackPanel Orientation="Horizontal" Spacing="5">
+                                            <TextBox x:Name="TbWikiPath" HorizontalAlignment="Stretch"
+                                                     Watermark="/home/username/.config/logofclient/wiki" />
+                                            <Button IsEnabled="True" x:Name="BtnWikiPath" HorizontalAlignment="Right">
+                                                <Button.Content>
+                                                    <StackPanel Orientation="Horizontal">
+                                                        <LucideIcon Kind="Folder" Width="16" Height="16" Size="16" />
+                                                        <Label Content="Öffnen..." VerticalContentAlignment="Center" />
+                                                    </StackPanel>
+                                                </Button.Content>
+                                            </Button>
+                                        </StackPanel>
+                                    </StackPanel>
+                                </Grid>
+                                <Grid ColumnDefinitions="400,*">
+                                    <Label Grid.Column="0">Font-Pfad</Label>
+                                    <StackPanel Grid.Column="1" Orientation="Vertical" Spacing="5">
+                                        <StackPanel Orientation="Horizontal" Spacing="5">
+                                            <TextBox x:Name="TbFontPath" HorizontalAlignment="Stretch"
+                                                     Watermark="[App-Direcotry]/assets/fonts/" />
+                                            <Button IsEnabled="True" x:Name="BtnFontPath" HorizontalAlignment="Right">
+                                                <Button.Content>
+                                                    <StackPanel Orientation="Horizontal">
+                                                        <LucideIcon Kind="Folder" Width="16" Height="16" Size="16" />
+                                                        <Label Content="Öffnen..." VerticalContentAlignment="Center" />
+                                                    </StackPanel>
+                                                </Button.Content>
+                                            </Button>
+                                        </StackPanel>
+                                    </StackPanel>
                                 </Grid>
                             </StackPanel>
                         </TabItem>
@@ -316,11 +479,26 @@
                                                  x:Name="TbSettingsCustomerDescription" />
                                     </Grid>
                                     <Grid ColumnDefinitions="150,*">
+                                        <Label Content="Absenderadresse" />
+                                        <TextBox Grid.Column="1" Watermark="Absenderadresse"
+                                                 HorizontalAlignment="Stretch"
+                                                 TextChanged="TbSettingsCustomerSenderAddress_OnTextChanged"
+                                                 x:Name="TbSettingsCustomerSenderAddress" />
+                                    </Grid>
+                                    <Grid ColumnDefinitions="150,*,Auto">
                                         <Label Content="CSV-Trennzeichen" />
                                         <TextBox Grid.Column="1" Watermark=","
-                                                 HorizontalAlignment="Stretch"
+                                                 HorizontalAlignment="Stretch" Margin="0,0,5,0"
                                                  TextChanged="TbSettingsCustomerCsvSeparator_OnTextChanged"
                                                  x:Name="TbSettingsCustomerCsvSeparator" />
+                                        <StackPanel Grid.Column="2" Orientation="Horizontal" Spacing="5">
+                                            <Button Click="ChangeCSVDivider" Content=","></Button>
+                                            <Button Click="ChangeCSVDivider" Content=";"></Button>
+                                            <Button Click="ChangeCSVDivider" Content="TAB"></Button>
+                                            <Button Click="ChangeCSVDivider" Content="|"></Button>
+                                            <Button Click="ChangeCSVDivider" Content="SPACE"></Button>
+                                            <Button Click="ChangeCSVDivider" Content=":"></Button>
+                                        </StackPanel>
                                     </Grid>
                                     <Grid ColumnDefinitions="150,*">
                                         <Label Content="Address-Patch-Info" />
@@ -347,7 +525,7 @@
                                                    VerticalContentAlignment="Center" />
                                         </StackPanel>
                                     </Button>
-                                    <Button Background="#99963434" HorizontalAlignment="Stretch"
+                                    <Button Background="#99963434" HorizontalAlignment="Stretch" x:Name="BtnDeleteCustomer" Click="BtnDeleteCustomer_OnClick"
                                             HorizontalContentAlignment="Center">
                                         <StackPanel Orientation="Horizontal">
                                             <LucideIcon Kind="Trash" Width="16" Height="16" Size="16" />
@@ -357,6 +535,97 @@
                                 </StackPanel>
                             </Grid>
                         </TabItem>
+                        <TabItem>
+                            <TabItem.Header>
+                                <StackPanel Orientation="Horizontal">
+                                    <LucideIcon Kind="Globe" Width="16" Height="16" Size="16" />
+                                    <Label FontSize="16" Content="Länder" VerticalContentAlignment="Center" />
+                                </StackPanel>
+                            </TabItem.Header>
+                            <Grid ColumnDefinitions="*,*">
+                                <Grid Grid.Column="0" Margin="5">
+                                    <Grid.RowDefinitions>
+                                        <RowDefinition Height="*" />
+                                        <RowDefinition Height="Auto" />
+                                    </Grid.RowDefinitions>
+
+                                    <ListBox x:Name="CountryList" Grid.Row="0"
+                                             SelectionChanged="CountryList_OnSelectionChanged" />
+
+                                    <Grid Grid.Row="1" ColumnDefinitions="*,250" Margin="0,5,0,0">
+                                        <TextBox x:Name="TbSettingsNewCountry" />
+                                        <Button Grid.Column="1" x:Name="BtnSettingsNewCountry"
+                                                HorizontalAlignment="Stretch" Click="BtnSettingsNewCountry_OnClick"
+                                                HorizontalContentAlignment="Center" Content="+ Hinzufügen"
+                                                Margin="5,0,0,0" />
+                                    </Grid>
+                                </Grid>
+
+                                <Grid Grid.Column="1" Margin="5">
+                                    <Grid.RowDefinitions>
+                                        <RowDefinition Height="Auto" />
+                                        <RowDefinition Height="Auto" />
+                                        <RowDefinition Height="Auto" />
+                                        <RowDefinition Height="*" />
+                                    </Grid.RowDefinitions>
+
+                                    <StackPanel Grid.Row="0" Orientation="Horizontal" Margin="0,0,0,5"
+                                                HorizontalAlignment="Right">
+                                        <Button x:Name="BtnSettingsInsertDefaultCountries"
+                                                Content="Standard-Länder laden (Englisch)"
+                                                Click="BtnSettingsInsertDefaultCountries_OnClick" />
+
+                                    </StackPanel>
+
+                                    <Grid Grid.Row="1" ColumnDefinitions="300,*" Margin="0,0,0,5">
+                                        <TextBlock Text="Name:" VerticalAlignment="Center" />
+                                        <TextBox Grid.Column="1" x:Name="TbSettingsCountryName"
+                                                 TextChanged="TbSettingsCountryName_OnTextChanged" />
+                                    </Grid>
+
+                                    <Grid ColumnDefinitions="300,*" Margin="0,0,0,5" Grid.Row="2">
+                                        <TextBlock Text="Übersetzung:" VerticalAlignment="Center" />
+                                        <TextBox Grid.Column="1" x:Name="TbSettingsCountryTranslation"
+                                                 TextChanged="TbSettingsCountryTranslation_OnTextChanged" />
+                                    </Grid>
+
+                                    <Grid Grid.Row="3">
+                                        <Grid.RowDefinitions>
+                                            <RowDefinition Height="*" />
+                                            <RowDefinition Height="Auto" />
+                                            <RowDefinition Height="Auto" />
+                                            <RowDefinition Height="Auto" />
+                                        </Grid.RowDefinitions>
+
+
+                                        <ListBox Grid.Row="0" x:Name="LbSettingsAlternatives" SelectionMode="Multiple" />
+
+                                        <Grid Grid.Row="1" ColumnDefinitions="*,200" Margin="0,5,0,0">
+                                            <TextBox x:Name="TbSettingsNewCountryAlternative"
+                                                     Watermark="Kürzel/Alternative" />
+                                            <Button Grid.Column="1" x:Name="BtnSettingsNewCountryAlternative"
+                                                    Content="+ Hinzufügen" Margin="5 0 0 0"
+                                                    HorizontalContentAlignment="Center"
+                                                    Click="BtnSettingsNewCountryAlternative_OnClick"
+                                                    HorizontalAlignment="Stretch" />
+                                        </Grid>
+
+                                        <Button x:Name="BtnSettingsRemoveSelectedAlternatives" Grid.Row="2"
+                                                Content="Ausgewählte Entfernen" Background="#99963434"
+                                                HorizontalContentAlignment="Center"
+                                                HorizontalAlignment="Stretch"
+                                                Click="BtnSettingsRemoveSelectedAlternatives_OnClick"
+                                                Margin="0,5,0,0" />
+
+                                        <Button Grid.Row="3"
+                                                Content="Land Entfernen" Background="#99963434"
+                                                HorizontalContentAlignment="Center" x:Name="BtnSettingsRemoveCountry"
+                                                HorizontalAlignment="Stretch" Click="BtnSettingsRemoveCountry_OnClick"
+                                                Margin="0,5,0,0" />
+                                    </Grid>
+                                </Grid>
+                            </Grid>
+                        </TabItem>
                     </TabControl>
                 </TabItem>
             </TabControl>

NamingWindow.axaml

@@ -0,0 +1,19 @@
+<Window xmlns="https://github.com/avaloniaui"
+        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" WindowStartupLocation="CenterScreen" Topmost="True"
+        x:Class="Logof_Client.NamingWindow"
+        Title="NamingWindow">
+    <StackPanel Orientation="Vertical">
+        <TextBlock Name="Text" Margin="10" TextWrapping="Wrap" />
+        <TextBox Name="Input" Margin="10" />
+        <StackPanel HorizontalAlignment="Right" Margin="5" Orientation="Horizontal" Name="Buttons">
+            <StackPanel.Styles>
+                <Style Selector="Button">
+                    <Setter Property="Margin" Value="5" />
+                </Style>
+            </StackPanel.Styles>
+        </StackPanel>
+    </StackPanel>
+</Window>

NamingWindow.axaml.cs

@@ -0,0 +1,59 @@
+using System;
+using System.Runtime.CompilerServices;
+using System.Threading.Tasks;
+using Avalonia.Controls;
+
+namespace Logof_Client;
+
+public partial class NamingWindow : Window
+{
+    public NamingWindow()
+    {
+        InitializeComponent();
+    }
+
+    public static Task<string> Show(Window parent, string input = "", string info = "Bitte geben Sie einen Namen ein:")
+    {
+        try
+        {
+            var wind = new NamingWindow
+            {
+                Title = "Name eingeben"
+            };
+            wind.FindControl<TextBlock>("Text").Text = info;
+            var buttonPanel = wind.FindControl<StackPanel>("Buttons");
+            var inputBox = wind.FindControl<TextBox>("Input");
+
+            inputBox.Text = input;
+            string res = null;
+
+            void AddButton(string caption)
+            {
+                var btn = new Button { Content = caption };
+                btn.Click += (_, __) =>
+                {
+                    res = inputBox.Text;
+                    wind.Close();
+                };
+                buttonPanel.Children.Add(btn);
+            }
+
+            AddButton("Ok");
+
+
+            var tcs = new TaskCompletionSource<string>();
+            wind.Closed += delegate { tcs.TrySetResult(res); };
+            if (parent != null)
+                wind.ShowDialog(parent);
+            else wind.Show();
+            wind.Focus();
+
+            return tcs.Task;
+        }
+        catch (Exception ex)
+        {
+            Logger.Log("Error while showing naming window: " + ex.Message, Logger.LogType.Warning);
+            return Task.FromResult<string>(null!);
+        }
+    }
+}

ProgressWindow.axaml

@@ -3,7 +3,7 @@
         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
         mc:Ignorable="d" d:DesignWidth="800" Width="800" MinWidth="800" MaxWidth="800" d:DesignHeight="150"
-        Height="150" MinHeight="150" MaxHeight="150" Icon="assets/icon.ico"
+        Height="150" MinHeight="150" MaxHeight="150" Icon="assets/icon.ico" WindowStartupLocation="CenterScreen" Topmost="True"
         x:Class="Logof_Client.ProgressWindow" Title="Verarbeitung läuft...">
     <Grid>
         <!-- <ScrollViewer x:Name="ScvLog"> -->

ProgressWindow.axaml.cs

@@ -16,9 +16,9 @@ public partial class ProgressWindow : Window
         PbProgress.Value = percentage;
     }
 
-    public void AddToLog(string message)
+    public void AddToLog(string message, string percent)
     {
-        TbLog.Text = message;
+        TbLog.Text = message + $"\n{percent}%";
         //ScvLog.ScrollToEnd();
     }
 }

README.md

@@ -0,0 +1,8 @@
+# Logofclient
+Free and open source software suite to manage customers, prices, employees, etc. 
+
+## Bugs
+Please report any bugs you find to fierke@mypapertown.de, thank you!
+
+## Contributing
+Feel free to contribute to this project using your MyPaperCloud-Account (request it via fierke@mypapertown.de) or a local git.mypapercloud.de-Account you are able to create.

ResultWindow.axaml

@@ -12,13 +12,18 @@
                    x:Name="LblResultCount" />
             <StackPanel x:Name="StpFilterOptions" Orientation="Vertical" HorizontalAlignment="Stretch"
                         VerticalAlignment="Stretch" Margin="10,80,10,0" />
-            <!-- <Button x:Name="BtnUpdateFilter" Content="Aktualisieren" HorizontalAlignment="Stretch" -->
+            <Button Content="Filter anwenden" HorizontalAlignment="Stretch" VerticalAlignment="Bottom"
-            <!--         VerticalAlignment="Bottom" Margin="10,0,10,10" Click="BtnUpdateFilter_OnClick" /> -->
+                    x:Name="BtnExecuteFilter" Click="BtnExecuteFilter_OnClick"
+                    Margin="10,10,10,50" />
             <Button Content="Ausgewählte Anzeigen" HorizontalAlignment="Stretch" VerticalAlignment="Bottom"
                     x:Name="BtnShowSelected" Click="BtnShowSelected_OnClick"
                     Margin="10,10,10,10" />
         </Grid>
-        <DataGrid x:Name="DgResult" Grid.Column="1" AutoGenerateColumns="True" />
+        <ScrollViewer Grid.Column="1" HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Auto">
+            <!-- <TextBlock x:Name="TbResults"></TextBlock> -->
+            <ListBox x:Name="LbResults"></ListBox>
+            <!-- <StackPanel x:Name="StkResults" Orientation="Vertical" Margin="10" /> -->
+        </ScrollViewer>
 
     </Grid>
 </Window>

ResultWindow.axaml.cs

@@ -5,6 +5,7 @@ using Avalonia;
 using Avalonia.Controls;
 using Avalonia.Interactivity;
 using Avalonia.Layout;
+using Avalonia.Media;
 
 namespace Logof_Client;
 
@@ -27,16 +28,65 @@ public partial class ResultWindow : Window
 
     private void GenerateView(List<KasPerson> result)
     {
+        try
+        {
+
+
             // Filter to only show persons with errors
             var result_with_errors = result.Where(p => p.PersonError != null).ToList();
             LblResultCount.Content = $"{result_with_errors.Count}/{ur_result.Count} Ergebnisse";
-        DgResult.ItemsSource = result_with_errors;
+
+            // TbResults.Text = "";
+            // foreach (var person in result_with_errors) TbResults.Text += person.PersonError.GetString()+"\n";
+            LbResults.Items.Clear();
+            foreach (var person in result_with_errors) LbResults.Items.Add(person.PersonError.ToString(person));
+            // StkResults.Children.Clear();
+            // foreach (var person in result_with_errors) StkResults.Children.Add(CreatePersonGrid(person));
+        }
+        catch (Exception ex)
+        {
+            Logger.Log("Error while generating result view: " + ex.Message, Logger.LogType.Warning);
+        }
     }
 
-    private void ViewSingle(int refsid)
+    private Grid CreatePersonGrid(KasPerson person)
+    {
+        var grid = new Grid
+        {
+            ColumnDefinitions = ColumnDefinitions.Parse("100,*,100,*,100,*"),
+            RowDefinitions = RowDefinitions.Parse("Auto"),
+            Margin = new Thickness(0, 5, 0, 5),
+            Background = new SolidColorBrush(Color.Parse("#F0F0F0"))
+        };
+
+        // ID
+        grid.Children.Add(new TextBlock
+        {
+            Text = "id: ",
+            FontWeight = FontWeight.Bold, Margin = new Thickness(5)
+        });
+        grid.Children.Add(new TextBlock { Text = person.id.ToString(), Margin = new Thickness(5) });
+        Grid.SetColumn(grid.Children[1], 1);
+
+        // PLZ
+        grid.Children.Add(new TextBlock { Text = "plz:", FontWeight = FontWeight.Bold, Margin = new Thickness(5) });
+        Grid.SetColumn(grid.Children[2], 2);
+        grid.Children.Add(new TextBlock { Text = person.plz, Margin = new Thickness(5) });
+        Grid.SetColumn(grid.Children[3], 3);
+
+        // PPLZ
+        grid.Children.Add(new TextBlock { Text = "errors:", FontWeight = FontWeight.Bold, Margin = new Thickness(5) });
+        Grid.SetColumn(grid.Children[4], 4);
+        grid.Children.Add(new TextBlock { Text = person.PersonError.GetString(), Margin = new Thickness(5) });
+        Grid.SetColumn(grid.Children[5], 5);
+
+        return grid;
+    }
+
+    private void ViewSingle(int id)
     {
         foreach (var result in ur_addresses.KasPersons)
-            if (result.refsid == refsid)
+            if (result.id == id)
             {
                 var wind = new Window();
                 var stp = new StackPanel();
@@ -45,8 +95,8 @@ public partial class ResultWindow : Window
                 var tb = new TextBlock();
                 var tb2 = new TextBlock();
                 tb.Text =
-                    "refsid:\nanrede:\ntitel:\nvorname:\nadel:\nname:\nnamezus:\nanredzus:\nstrasse:\nstrasse2:\nplz:\nort:\nland:\npplz:\npostfach:\nname1:\nname2:\nname3:\nname4:\nname5:\nfunktion:\nfunktion2:\nabteilung:\nfunktionad:";
+                    "id:\nanrede:\ntitel:\nvorname:\nadel:\nname:\nnamezus:\nanredzus:\nstrasse:\nstrasse2:\nplz:\nort:\nland:\npplz:\npostfach:\nname1:\nname2:\nname3:\nname4:\nname5:\nfunktion:\nfunktion2:\nabteilung:\nfunktionad:";
-                tb2.Text = result.refsid + "\n" + result.anrede + "\n" + result.titel + "\n" + result.vorname + "\n" +
+                tb2.Text = result.id + "\n" + result.anrede + "\n" + result.titel + "\n" + result.vorname + "\n" +
                            result.adel + "\n" + result.name + "\n" + result.namezus + "\n" + result.anredzus + "\n" +
                            result.strasse + "\n" + result.strasse2 + "\n" + result.plz + "\n" + result.ort + "\n" +
                            result.land + "\n" + result.pplz + "\n" + result.postfach + "\n" + result.name1 + "\n" +
@@ -64,6 +114,8 @@ public partial class ResultWindow : Window
     }
 
     private void Load(List<KasPerson> result)
+    {
+        try
         {
             var knownErrors = new List<AddressCheck.ErrorTypes>();
             var knownWarnings = new List<AddressCheck.WarningTypes>();
@@ -87,7 +139,7 @@ public partial class ResultWindow : Window
                 var cb = new CheckBox();
                 cb.IsChecked = true;
                 cb.Content = errtype.ToString();
-            cb.Click += (sender, e) => UpdateFilter();
+                //cb.Click += (sender, e) => UpdateFilter();
                 errortypecheckboxes.Add(cb);
                 StpFilterOptions.Children.Add(cb);
             }
@@ -97,61 +149,112 @@ public partial class ResultWindow : Window
                 var cb = new CheckBox();
                 cb.IsChecked = true;
                 cb.Content = wartype.ToString();
-            cb.Click += (sender, e) => UpdateFilter();
+                //cb.Click += (sender, e) => UpdateFilter();
                 warningtypecheckboxes.Add(cb);
                 StpFilterOptions.Children.Add(cb);
             }
 
             GenerateView(result);
         }
+        catch (Exception ex)
+        {
+            Logger.Log("Error while showing naming window: " + ex.Message, Logger.LogType.Warning);
+        }
+        
+    }
 
     private void BtnUpdateFilter_OnClick(object? sender, RoutedEventArgs e)
     {
     }
 
     private void UpdateFilter()
+    {
+        try
         {
             var temp_result = new List<KasPerson>();
-        var checked_types = new List<AddressCheck.ErrorTypes>();
+
-        var checked_types_war = new List<AddressCheck.WarningTypes>();
+        var checkedErrors = new HashSet<AddressCheck.ErrorTypes>();
+        var checkedWarnings = new HashSet<AddressCheck.WarningTypes>();
+
+        // safer parsing: use TryParse and trim the Content string
         foreach (var cb in errortypecheckboxes)
             if (cb.IsChecked == true)
-                checked_types.Add(
+            {
-                    (AddressCheck.ErrorTypes)Enum.Parse(typeof(AddressCheck.ErrorTypes), cb.Content.ToString()));
+                var s = cb.Content?.ToString()?.Trim();
+                if (!string.IsNullOrEmpty(s) &&
+                    Enum.TryParse<AddressCheck.ErrorTypes>(s, true, out var et))
+                    checkedErrors.Add(et);
+            }
 
         foreach (var cb in warningtypecheckboxes)
             if (cb.IsChecked == true)
-                checked_types_war.Add(
+            {
-                    (AddressCheck.WarningTypes)Enum.Parse(typeof(AddressCheck.WarningTypes), cb.Content.ToString()));
+                var s = cb.Content?.ToString()?.Trim();
+                if (!string.IsNullOrEmpty(s) &&
+                    Enum.TryParse<AddressCheck.WarningTypes>(s, true, out var wt))
+                    checkedWarnings.Add(wt);
+            }
 
+        // If no checkboxes are selected, show all persons with errors (default behavior)
+        if (checkedErrors.Count == 0 && checkedWarnings.Count == 0)
+            temp_result = ur_result.Where(p => p.PersonError != null).ToList();
+        else
             foreach (var person in ur_result)
             {
                 if (person.PersonError == null) continue;
 
-            foreach (var err in person.PersonError.errors)
+                var personErrors = person.PersonError.errors ?? Enumerable.Empty<AddressCheck.ErrorTypes>();
-                if (checked_types.Contains(err) && !temp_result.Contains(person))
+                var personWarnings = person.PersonError.warnings ?? Enumerable.Empty<AddressCheck.WarningTypes>();
-                    temp_result.Add(person);
 
-            foreach (var war in person.PersonError.warnings)
+                var matchesError = false;
-                if (checked_types_war.Contains(war) && !temp_result.Contains(person))
+                var matchesWarning = false;
+
+                // only test errors if the user selected error-types
+                if (checkedErrors.Count > 0)
+                    matchesError = personErrors.Any(err => checkedErrors.Contains(err));
+
+                // only test warnings if the user selected warning-types
+                if (checkedWarnings.Count > 0)
+                    matchesWarning = personWarnings.Any(war => checkedWarnings.Contains(war));
+
+                // If at least one category matches (OR across categories), include person
+                if ((matchesError || matchesWarning) && !temp_result.Contains(person))
                     temp_result.Add(person);
             }
 
         LblResultCount.Content = $"{temp_result.Count}/{ur_result.Count} Ergebnisse";
-        DgResult.ItemsSource = temp_result;
+
+        LbResults.Items.Clear();
+        foreach (var person in temp_result) LbResults.Items.Add(person.PersonError.ToString(person));
+        // TbResults.Text = "";
+        // foreach (var person in temp_result) TbResults.Text += person.PersonError.GetString() +"\n";
+        // StkResults.Children.Clear();
+        // foreach (var person in temp_result) StkResults.Children.Add(CreatePersonGrid(person));
+        } catch (Exception ex)
+        {
+            Logger.Log("Error while updating filter: " + ex.Message, Logger.LogType.Warning);
         }
         
+    }
+
+
     private void BtnShowSelected_OnClick(object? sender, RoutedEventArgs e)
     {
-        foreach (var selected in DgResult.SelectedItems)
+        // foreach (var selected in DgResult.SelectedItems)
-            try
+        //     try
+        //     {
+        //         var _asKas = (KasPerson)selected;
+        //         ViewSingle(_asKas.id);
+        //     }
+        //     catch (Exception ex)
+        //     {
+        //         Console.WriteLine(ex.Message);
+        //     }
+    }
+
+    private void BtnExecuteFilter_OnClick(object? sender, RoutedEventArgs e)
     {
-                var _asKas = (KasPerson)selected;
+        Console.WriteLine("Updating filter...");
-                ViewSingle(_asKas.refsid);
+        UpdateFilter();
-            }
-            catch (Exception ex)
-            {
-                Console.WriteLine(ex.Message);
-            }
     }
 }

Settings.cs

@@ -1,147 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.IO;
-using Newtonsoft.Json;
-
-namespace Logof_Client;
-
-public class Settings
-{
-    public static Settings _instance = new();
-    public AddressSets addressSets = new();
-    public Customers customers = new();
-
-    public string settingsPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData),
-        "logofclient", "config.json");
-
-    public Settings()
-    {
-        _instance = this;
-    }
-
-
-    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;
-
-        var json = JsonConvert.SerializeObject(_instance);
-        File.WriteAllText(_instance.settingsPath, json);
-    }
-
-    public static void Load()
-    {
-        if (!string.IsNullOrEmpty(Global._instance.config_path)) _instance.settingsPath = Global._instance.config_path;
-
-        try
-        {
-            var contents = File.ReadAllText(_instance.settingsPath);
-            _instance = JsonConvert.DeserializeObject<Settings>(contents);
-            MainWindow._instance.RefreshCustomerItems();
-        }
-        catch (Exception ex)
-        {
-            Console.WriteLine(ex.Message);
-            Console.WriteLine(ex.StackTrace);
-            Console.WriteLine("Error while reading settings. Generating new...");
-            _instance = new Settings();
-        }
-    }
-}
-
-public class Global
-{
-    public static Global _instance;
-
-    public Global()
-    {
-        _instance = this;
-    }
-
-    public string config_path { get; set; } = "";
-
-    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"));
-        var json = JsonConvert.SerializeObject(_instance, Formatting.Indented);
-        File.WriteAllText(
-            Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "logofclient",
-                "global.config"), json);
-    }
-
-    public static void Load()
-    {
-        // if (!File.Exists(Path.Combine(
-        //         Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "logofclient",
-        //         "global.config")))
-        //     File.Create(Path.Combine(
-        //         Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "logofclient",
-        //         "global.config"));
-        try
-        {
-            var contents = File.ReadAllText(Path.Combine(
-                Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "logofclient",
-                "global.config"));
-            _instance = JsonConvert.DeserializeObject<Global>(contents);
-        }
-        catch (Exception ex)
-        {
-            Console.WriteLine(ex.Message);
-            Console.WriteLine(ex.StackTrace);
-            Console.WriteLine("Error while reading global settings. Generating new...");
-            _instance = new Global();
-            Save();
-        }
-    }
-}
-
-public class Customers
-{
-    public List<Customer> customers = new();
-    public int current { get; set; } = 0;
-}
-
-public class Customer
-{
-    public Customer()
-    {
-        var highestID = 0;
-        foreach (var customer in Settings._instance.customers.customers)
-            if (customer.ID > highestID)
-                highestID = customer.ID;
-
-        ID = highestID + 1;
-    }
-
-    public string name { get; set; } = "";
-    public string description { get; set; } = "";
-    public AddressPatch patch { get; set; }
-    public char separator { get; set; } = ',';
-    public int ID { get; }
-
-    public static int GetIDByCustomerListItem(string item_content)
-    {
-        var id = item_content.Split(" - ")[0];
-        return int.Parse(id);
-    }
-}
-
-public class AddressSets
-{
-    public List<KasAddressList> addresses = new();
-
-    public KasAddressList GetAddressSetByID(int ID)
-    {
-        foreach (var i in addresses)
-            if (i.ID == ID)
-                return i;
-
-        return null;
-    }
-}

Tasks/AddressCheck.cs

@@ -1,3 +1,4 @@
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Threading;
@@ -37,6 +38,8 @@ public class AddressCheck
     }
 
     public async Task<List<KasPerson>> Perform(int id)
+    {
+        try
         {
             // Find the index of the address set with the given id
             var adset_index = -1;
@@ -237,7 +240,8 @@ public class AddressCheck
                             // Directly set PersonError in the address set
                             var person_index = adset.KasPersons.IndexOf(person);
                             if (person_index >= 0)
-                                    Settings._instance.addressSets.addresses[adset_index].KasPersons[person_index].PersonError = 
+                                Settings._instance.addressSets.addresses[adset_index].KasPersons[person_index]
+                                        .PersonError =
                                     new KasPersonError((errors, warnings));
                         }
 
@@ -247,7 +251,8 @@ public class AddressCheck
                     await Dispatcher.UIThread.InvokeAsync(() =>
                     {
                         if (hasFaults)
-                                _progress.AddToLog($"Person mit refsid {person.refsid} ist fehlerhaft");
+                            _progress.AddToLog($"Person mit id {person.id} ist fehlerhaft",
+                                Convert.ToInt32(percent).ToString());
 
                         _progress.ChangePercentage(percent);
                     });
@@ -260,5 +265,14 @@ public class AddressCheck
             return Settings._instance.addressSets.addresses[adset_index].KasPersons
                 .Where(p => p.PersonError != null)
                 .ToList();
+
         }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while performing address check: {ex.Message}", Logger.LogType.Error);
+        }
+
+        return null;
+    }
+
 }

Tasks/AddressCreation.cs

@@ -5,52 +5,6 @@ namespace Logof_Client;
 
 public static class AddressCreator
 {
-    /// <summary>
-    ///     Creates max-seven-lines-long Markdown address-string. Analyzes the KasPerson-Instance to find the best result.
-    /// </summary>
-    /// <param name="refsid">KasPerson-ID</param>
-    /// <returns>A Markdown string with the address that is maximum seven lines long</returns>
-    public static string? CreateFinalMarkdownString2(int refsid)
-    {
-        // Maximum seven lines of information
-
-        // find the address
-        var address = new KasPerson();
-        var string_address = "";
-        var address_line_count = 0;
-        foreach (var set in Settings._instance.addressSets.addresses)
-        {
-            var temp = set.KasPersons.FirstOrDefault(obj => obj.refsid == refsid);
-            if (temp != null) break;
-        }
-
-        // no address found
-        if (address == null) return null;
-
-        // let's get started: the name (and anrede), block-line-count: 1
-        if (!string.IsNullOrEmpty(address.anrede))
-        {
-            if (address.anrede == "Herr") string_address += "Herrn";
-            else string_address += address.anrede;
-            address_line_count++;
-        }
-
-        if (!string.IsNullOrEmpty(address.name) && !string.IsNullOrEmpty(address.vorname))
-        {
-            string_address += " " + address.vorname + " " + address.name;
-        }
-        else if (!string.IsNullOrEmpty(address.name))
-        {
-        }
-        else // Anrede but no name? to the trash!
-        {
-            string_address = "";
-            address_line_count = 0;
-        }
-
-        return "Hier könnte eine\nAdresse stehen";
-    }
-
     //+++ Aufbau +++
     //  
     // Von unten anfangen, max. 7 Zeilen
@@ -86,31 +40,65 @@ public static class AddressCreator
     /// </summary>
     /// <param name="refsid">KasPerson-ID</param>
     /// <returns>A Markdown string with the address that is maximum seven lines long</returns>
-    public static string? CreateFinalMarkdownString(int refsid)
+    public static string? CreateFinalMarkdownString(int id)
     {
         // Maximum seven lines of information
-
+        try
+        {
             // find the address
-        var address = new KasPerson();
+                    KasPerson? address = null;
                     var string_address = "";
                     var address_line_count = 0;
                     foreach (var set in Settings._instance.addressSets.addresses)
                     {
-            var temp = set.KasPersons.FirstOrDefault(obj => obj.refsid == refsid);
+                        var temp = set.KasPersons.FirstOrDefault(obj => obj.id == id);
-            if (temp != null) break;
+                        if (temp != null)
+                        {
+                            address = temp;
+                            break;
+                        }
                     }
             
                     // no address found
                     if (address == null) return null;
             
                     // let's get started: we start from the bottom
-        // if the country is not germany, set it
+                    // if the country is not Germany, set it; try to map via Global countries alternatives -> translation
-        // LAND: GER oder DE
+                    var trimmedLand = (address.land ?? "").Trim();
-        if (address.land.ToLower().Trim() != "germany" && address.land.ToLower().Trim() != "ger" &&
+                    var trimmedLowerLand = trimmedLand.ToLower();
-            address.land.ToLower().Trim() != "" && address.land.ToLower().Trim() != "de" &&
+                    var isGermany = trimmedLowerLand == "germany" || trimmedLowerLand == "ger" ||
-            address.land.ToLower().Trim() != "deutschland")
+                                    trimmedLowerLand == "" || trimmedLowerLand == "de" ||
+                                    trimmedLowerLand == "deutschland";
+            
+                    if (!isGermany)
                     {
-            string_address = "**" + address.land.Trim() + "**"; // Needs to be bold
+                        var countryToShow = trimmedLand; // default: use raw land value
+            
+                        if (!string.IsNullOrEmpty(trimmedLand))
+                            // search for matching country via alternatives using for-loops
+                            for (var ci = 0; ci < Global._instance.countries.Count; ci++)
+                            {
+                                var country = Global._instance.countries[ci];
+                                for (var ai = 0; ai < country.alternatives.Count; ai++)
+                                    try
+                                    {
+                                        var alt = (country.alternatives[ai] ?? "").Trim();
+                                        if (string.Equals(alt, trimmedLand, StringComparison.OrdinalIgnoreCase))
+                                        {
+                                            countryToShow = string.IsNullOrWhiteSpace(country.translation)
+                                                ? country.name
+                                                : country.translation;
+                                            goto CountryFound;
+                                        }
+                                    }
+                                    catch
+                                    {
+                                        // ignore malformed alternative
+                                    }
+                            }
+            
+                        CountryFound:
+                        string_address = "**" + countryToShow + "**"; // Needs to be bold
                         address_line_count++;
                     }
             
@@ -121,10 +109,10 @@ public static class AddressCreator
                         address_line_count++;
                         if (!string.IsNullOrWhiteSpace(address.postfach))
                         {
-                string_address = address.postfach.Trim() + "\n" + string_address;
+                            string_address = "Postfach " + address.postfach.Trim() + "\n" + string_address;
                             address_line_count++;
                         }
-            else
+                        else if (!string.IsNullOrWhiteSpace(address.strasse.Trim()))
                         {
                             string_address = address.strasse.Trim() + "\n" + string_address;
                             address_line_count++;
@@ -133,28 +121,33 @@ public static class AddressCreator
                         var nameline = CreateNameLine(address.anredzus, address.anrede, address.titel, address.vorname,
                             address.adel, address.name, address.namezus);
             
-            if (string.IsNullOrWhiteSpace(nameline))
+                        if (!string.IsNullOrWhiteSpace(nameline))
                         {
-                string_address = nameline + string_address;
+                            string_address = nameline + "\n" + string_address;
                             address_line_count++;
                         }
             
+                        // REIHENFOLGE
                         var nameattribs = new[]
                             { address.name1, address.name2, address.name3, address.name4, address.name5, address.abteilung };
             
-            for (var i = 0; i < nameattribs.Length - 1; i++)
+                        var names = "";
-                if (address_line_count < 7)
+                        for (var i = 0; i < nameattribs.Length; i++)
+                            try
                             {
+                                if (address_line_count >= 7) break;
                                 if (!string.IsNullOrWhiteSpace(nameattribs[i]))
                                 {
-                        string_address += nameattribs[i] + "\n" + string_address;
+                                    names += "\n" + nameattribs[i];
                                     address_line_count++;
                                 }
                             }
-                else
+                            catch
                             {
-                    break;
+                                Console.WriteLine("ERROR 15821");
                             }
+            
+                        string_address = names + "\n" + string_address;
                     } // Alternative B: plz valid and city existing 
                     else if (!string.IsNullOrEmpty(address.ort) && CheckPLZ(address.plz, address.land))
                     {
@@ -165,61 +158,80 @@ public static class AddressCreator
                             string_address = address.strasse.Trim() + "\n" + string_address;
                             address_line_count++;
                         }
-            else
+                        else if (!string.IsNullOrWhiteSpace(address.postfach.Trim()))
                         {
-                string_address = address.postfach.Trim() + "\n" + string_address;
+                            string_address = "Postfach " + address.postfach.Trim() + "\n" + string_address;
                             address_line_count++;
                         }
             
                         var nameline = CreateNameLine(address.anredzus, address.anrede, address.titel, address.vorname,
                             address.adel, address.name, address.namezus);
             
-            if (string.IsNullOrWhiteSpace(nameline))
+                        if (!string.IsNullOrWhiteSpace(nameline))
                         {
-                string_address = nameline + string_address;
+                            string_address = nameline + "\n" + string_address;
                             address_line_count++;
                         }
             
                         var nameattribs = new[]
                             { address.name1, address.name2, address.name3, address.name4, address.name5, address.abteilung };
             
-            for (var i = 0; i < nameattribs.Length - 1; i++)
+                        var names = "";
-                if (address_line_count < 7)
+                        for (var i = 0; i < nameattribs.Length; i++)
+                            try
                             {
+                                if (address_line_count >= 7) break;
                                 if (!string.IsNullOrWhiteSpace(nameattribs[i]))
                                 {
-                        string_address += nameattribs[i] + "\n" + string_address;
+                                    names += "\n" + nameattribs[i];
                                     address_line_count++;
                                 }
                             }
-                else
+                            catch
                             {
-                    break;
+                                Console.WriteLine("ERROR 15821");
                             }
+            
+                        string_address = names + "\n" + string_address;
                     } // Error-Handling?
             
-        return string_address;
+                    if (address_line_count > 1) return string_address;
-        return "Hier könnte eine\nAdresse stehen";
+                    return null;
+        }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while creating markdown string: {ex.Message}", Logger.LogType.Error);
+        }
+
+        return null;
     }
 
     public static string CreateNameLine(string anredezus, string anrede, string titel, string vorname, string adel,
         string name, string namezus)
+    {
+        try
         {
             if (!string.IsNullOrWhiteSpace(anredezus))
                     return string.Join(" ",
                                new[] { anredezus, titel, vorname, adel, name }
                                    .Where(s => !string.IsNullOrWhiteSpace(s))
                            )
-                   + (string.IsNullOrWhiteSpace(namezus) ? "" : $" ({namezus.Trim()})")
+                           + (string.IsNullOrWhiteSpace(namezus) ? "" : $" ({namezus.Trim()})");
-                   + "\n";
         
             // else 
             return string.Join(" ",
                        new[] { anrede, titel, vorname, adel, name }
                            .Where(s => !string.IsNullOrWhiteSpace(s))
                    )
-               + (string.IsNullOrWhiteSpace(namezus) ? "" : $" ({namezus.Trim()})")
+                   + (string.IsNullOrWhiteSpace(namezus) ? "" : $" ({namezus.Trim()})");
-               + "\n";
+        }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while performing address name line creation: {ex.Message}", Logger.LogType.Error);
+        }
+
+        return null;
+        
     }
 
     /// <summary>
@@ -229,22 +241,40 @@ public static class AddressCreator
     /// <param name="land">country, to check the plz</param>
     /// <returns>true or faslse, depending on result :+1:</returns>
     public static bool CheckPLZ(string plz, string land)
+    {
+        try
         {
             if (string.IsNullOrWhiteSpace(plz)) return false;
             
-        // For non-german countries, accept any non-empty postal code
+            var trimmedPlz = plz.Trim();
-        if (land.ToLower().Trim() != "germany" && land.ToLower().Trim() != "ger" && land.ToLower().Trim() != "" &&
+            var trimmedLand = land.ToLower().Trim();
-            land.ToLower().Trim() != "de" && land.ToLower().Trim() != "deutschland")
-            return true;
     
-        // For Germany, check if it's a valid numeric postal code (5 digits)
+            // Check if it's a German country code
-        if (int.TryParse(plz, out var iplz))
+            var isGermany = trimmedLand == "germany" || trimmedLand == "ger" || trimmedLand == "de" ||
+                            trimmedLand == "deutschland" || trimmedLand == "";
+    
+            if (isGermany)
+                // For Germany (including empty land), accept numeric postal codes with 5 digits
+                try
                 {
-            if (iplz > 99999 || iplz < 10000) return false;
+                    var iplz = Convert.ToInt32(trimmedPlz);
-            return true;
+                    if (trimmedPlz.Length == 5) return true;
-        }
-        
-        // If it can't be parsed as int, it's not a valid German postal code
                     return false;
                 }
+                catch
+                {
+                    return false;
+                }
+    
+            // For non-German countries, accept any non-empty postal code
+            return true;
+        }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while performing address plz check: {ex.Message}", Logger.LogType.Error);
+        }
+
+        return false;
+        
+    }
 }

Tasks/AddressPatch.cs

@@ -0,0 +1,140 @@
+using System;
+using System.IO;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using Logof_Client;
+
+public class AddressPatch
+{
+    public string refsid_is { get; set; } = "";
+    public string anrede_is { get; set; } = "";
+    public string titel_is { get; set; } = "";
+    public string vorname_is { get; set; } = "";
+    public string adel_is { get; set; } = "";
+    public string name_is { get; set; } = "";
+    public string namezus_is { get; set; } = "";
+    public string anredzus_is { get; set; } = "";
+    public string strasse_is { get; set; } = "";
+    public string strasse2_is { get; set; } = "";
+    public string plz_is { get; set; } = "";
+    public string ort_is { get; set; } = "";
+    public string land_is { get; set; } = "";
+    public string pplz_is { get; set; } = "";
+    public string postfach_is { get; set; } = "";
+    public string name1_is { get; set; } = "";
+    public string name2_is { get; set; } = "";
+    public string name3_is { get; set; } = "";
+    public string name4_is { get; set; } = "";
+    public string name5_is { get; set; } = "";
+    public string funktion_is { get; set; } = "";
+    public string funktion2_is { get; set; } = "";
+    public string abteilung_is { get; set; } = "";
+    public string funktionad_is { get; set; } = "";
+
+    public bool has_refsid { get; set; }
+    public bool has_anrede { get; set; }
+    public bool has_titel { get; set; }
+    public bool has_vorname { get; set; }
+    public bool has_adel { get; set; }
+    public bool has_name { get; set; }
+    public bool has_namezus { get; set; }
+    public bool has_anredzus { get; set; }
+    public bool has_strasse { get; set; }
+    public bool has_strasse2 { get; set; }
+    public bool has_plz { get; set; }
+    public bool has_ort { get; set; }
+    public bool has_land { get; set; }
+    public bool has_pplz { get; set; }
+    public bool has_postfach { get; set; }
+    public bool has_name1 { get; set; }
+    public bool has_name2 { get; set; }
+    public bool has_name3 { get; set; }
+    public bool has_name4 { get; set; }
+    public bool has_name5 { get; set; }
+    public bool has_funktion { get; set; }
+    public bool has_funktion2 { get; set; }
+    public bool has_abteilung { get; set; }
+    public bool has_funktionad { get; set; }
+
+    public static AddressPatch Import(Uri filename)
+    {
+        try
+        {
+            var patch = new AddressPatch();
+            
+                    // Alle Zeilen aus der Datei laden
+                    var lines = File.ReadAllLines(filename.LocalPath);
+            
+                    // Alle Properties der Klasse (Strings und bools)
+                    var properties = typeof(AddressPatch).GetProperties(BindingFlags.Public | BindingFlags.Instance);
+            
+                    // Nur die Properties, die mit _is enden (also die String-Werte)
+                    var stringProps = properties.Where(p => p.PropertyType == typeof(string) && p.Name.EndsWith("_is"));
+            
+                    foreach (var prop in stringProps)
+                    {
+                        // Beispiel: prop.Name = "name_is"
+                        var baseName = prop.Name.Substring(0, prop.Name.Length - 3); // "name"
+            
+                        // In der Datei wird nach "name:" gesucht (ohne _is)
+                        var line = lines.FirstOrDefault(l => l.StartsWith(baseName + ":"));
+                        if (line != null)
+                        {
+                            // Wert extrahieren (alles nach dem Doppelpunkt)
+                            var value = line.Substring(line.IndexOf(':') + 1).Trim();
+            
+                            // Wert im Patch-Objekt setzen
+                            prop.SetValue(patch, value);
+            
+                            // Passendes has_ Feld aktivieren, z.B. "has_name"
+                            var hasProp = properties.FirstOrDefault(p => p.Name == "has_" + baseName);
+                            if (hasProp != null && hasProp.PropertyType == typeof(bool)) hasProp.SetValue(patch, true);
+                        }
+                    }
+            
+                    return patch;
+        }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while importing address patch: {ex.Message}", Logger.LogType.Error);
+        }
+
+        return null;
+
+
+    }
+
+
+    public override string ToString()
+    {
+        try
+        {
+            var properties = GetType().GetProperties(BindingFlags.Public | BindingFlags.Instance);
+                    var stringProps = properties.Where(p => p.PropertyType == typeof(string) && p.Name.EndsWith("_is"));
+            
+                    var lines = new StringBuilder();
+            
+                    foreach (var prop in stringProps)
+                    {
+                        // passendes has_ Feld
+                        var hasProp =
+                            properties.FirstOrDefault(p => p.Name == "has_" + prop.Name.Substring(0, prop.Name.Length - 3));
+                        if (hasProp != null && (bool)hasProp.GetValue(this))
+                        {
+                            var value = (string)prop.GetValue(this);
+                            lines.AppendLine($"{prop.Name} => {value}");
+                        }
+                    }
+            
+                    return lines.ToString().TrimEnd();
+        }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while parsing: {ex.Message}", Logger.LogType.Error);
+        }
+
+        return "Error while parsing";
+        
+    }
+}

Tasks/AddressRepair.cs

@@ -1,3 +1,4 @@
+using System;
 using System.Collections.Generic;
 
 namespace Logof_Client;
@@ -9,15 +10,16 @@ public class AddressRepair(ProgressWindow progressWindow)
     public KasAddressList Perform(KasAddressList all_addresses,
         List<(int, List<AddressCheck.ErrorTypes>)> failed_addresses)
     {
-        // foreach (var k in all_addresses.KasPersons)
+        try
-        // foreach (var p in failed_addresses)
+        {
-        // {
+            
-        //     if (k.refsid != p.Item1) continue;
+        }
-        //
+        catch (Exception ex)
-        //     if (p.Item1.Contains(AddressCheck.WarningTypes.DoubledRefsid))
+        {
-        //     {
+            Logger.Log($"Error while performing address repair: {ex.Message}", Logger.LogType.Error);
-        //     }
+        }
-        // }
+
+        return null;
 
         return null;
     }

Tasks/AddressShortener.cs

@@ -0,0 +1,84 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Threading.Tasks.Dataflow;
+
+namespace Logof_Client;
+
+public class AddressShortener(ProgressWindow progressWindow)
+{
+    private readonly ProgressWindow _progress = progressWindow;
+
+    public async Task Perform(KasAddressList list)
+    {
+        try
+        {
+            List<int> doubled_ids = new List<int>();
+                    for (int i = 0; i < list.KasPersons.Count; i++)
+                    {
+                        var address =  list.KasPersons[i];
+                        for (int j = 0; j < list.KasPersons.Count; j++)
+                        {
+                            if (i == j) continue;
+                            var sec_address =  list.KasPersons[j];
+                            
+                            if (address.refsid == sec_address.refsid && !doubled_ids.Contains(address.refsid) && address.refsid != 0)
+                            {
+                                doubled_ids.Add(address.refsid);
+                            }
+                        }
+                    }
+                    
+                    
+                    // delete doubled addresses by refsid
+                    foreach (int id in doubled_ids)
+                    {
+                        // does this remove both of the doubled addresses?
+                        list.KasPersons.Remove(list.KasPersons.FirstOrDefault(x => x.refsid == id));
+                    }
+            
+                    List<int> toRemove = new List<int>();
+                    foreach (var address in list.KasPersons)
+                    {
+                        try
+                        {
+                            if (address.PersonError.errors.Contains(AddressCheck.ErrorTypes.NoPLZorPPLZ))
+                            {
+                                toRemove.Add(address.id);
+                            }
+                            else if (address.PersonError.errors.Contains(AddressCheck.ErrorTypes.PlzNotUsable) &&
+                                     address.PersonError.errors.Contains(AddressCheck.ErrorTypes.PPlzNotUsable))
+                            {
+                                toRemove.Add(address.id);
+                            } else if (address.PersonError.errors.Contains(AddressCheck.ErrorTypes.PlzNotUsable) &&
+                                       address.PersonError.warnings.Contains(AddressCheck.WarningTypes.NoPPLZ))
+                            {
+                                toRemove.Add(address.id);
+                            }
+                            else if (address.PersonError.errors.Contains(AddressCheck.ErrorTypes.PPlzNotUsable) &&
+                                     address.PersonError.warnings.Contains(AddressCheck.WarningTypes.NoPLZ))
+                            {
+                                toRemove.Add(address.id);
+                            }
+                        }
+                        catch
+                        {
+                            Console.WriteLine("PersonError not accessible: " + address.id);
+                        }
+                    }
+                    
+                    // delete doubled addresses by refsid
+                    foreach (int id in toRemove)
+                    {
+                        // does this remove both of the doubled addresses?
+                        list.KasPersons.Remove(list.KasPersons.Find(x => x.id == id));
+                    }
+        }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while performing address shortener: {ex.Message}", Logger.LogType.Error);
+        }
+        
+    }
+}

Tasks/CombineAddresses.cs

@@ -16,39 +16,58 @@ public class CombineAddresses
         _progress = progressWindow;
     }
     
-    public async Task<(KasAddressList,KasAddressList)> Perform(List<KasAddressList> address_lists, string type, bool? exportUnused)
+    public enum CombineType
     {
-        var res = await Task.Run(async () =>
+        refsid,
+        final_adress,
+        none
+    }
+
+    public async Task<(KasAddressList, KasAddressList)> Perform(List<KasAddressList> address_lists, string type, CombineType comb_type,
+        bool? exportUnused, bool? deleteOld)
     {
-            if (type == "difference") return Difference(address_lists, exportUnused);
+        try
-            if (type == "union") return Union(address_lists, exportUnused);
+        {
-            if (type == "intersection") return Intersection(address_lists, exportUnused);
+            var result = await Execute(address_lists,type,comb_type,exportUnused);
-            if (type == "symdiff") return SymmetricDifference(address_lists, exportUnused);
             
-            return null;
+                    if (deleteOld == true)
-        });
+                    {
+                        foreach (var list in address_lists)
+                        {
+                            Settings._instance.addressSets.addresses.Remove(list);
+                        }
+                    }
             
+                    return result;
+        }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while performing address combining: {ex.Message}", Logger.LogType.Error);
+        }
 
-        return res.Result;
-
-
-        // KasAddressList result = new("Ergebnis_" + DateTime.Now.ToString("ddMMyy_HHmmss"));
-        // await Task.Run(async () =>
-        // {
-        //     for (var i = 0; i < address_lists.Count; i++)
-        //         if (i == 0)
-        //             lock (result)
-        //             {
-        //                 result = address_lists[i];
-        //             }
-        //         else
-        //             lock (result)
-        //             {
-        //                 result = Merge(result, address_lists[i], i + 1, address_lists.Count).Result;
-        //             }
-        // });
-        // return result;
         return (null,null);
+        
+
+    }
+
+    private async Task<(KasAddressList, KasAddressList)> Execute(List<KasAddressList> address_lists, string type, CombineType comb_type,
+        bool? exportUnused)
+    {
+        try
+        {
+            if (type == "difference") return await Difference(address_lists, comb_type, exportUnused);
+            if (type == "union") return await Union(address_lists, comb_type, exportUnused);
+            if (type == "intersection") return await Intersection(address_lists, comb_type, exportUnused);
+            if (type == "symdiff") return await SymmetricDifference(address_lists, comb_type, exportUnused);
+            return (null, null);
+        }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while executing address combining: {ex.Message}", Logger.LogType.Error);
+        }
+
+        return (null,null);
+        
     }
 
 
@@ -59,10 +78,13 @@ public class CombineAddresses
     /// <param name="second">Second address to compare</param>
     /// <param name="only_refsid">If true, only a refsid-check will be done</param>
     /// <returns></returns>
-    public bool CompareAddresses(KasPerson first, KasPerson second, bool only_refsid = false)
+    public bool CompareAddresses(KasPerson first, KasPerson second, CombineType comb_type)
     {
-        if (first.refsid == second.refsid) return true;
+        
-        if (!only_refsid)
+        // A refsid of 0 means "missing", so it must not collapse unrelated entries.
+        if(comb_type == CombineType.refsid)
+            if (first.refsid != 0 && second.refsid != 0 && first.refsid == second.refsid) return true;
+        if (comb_type == CombineType.final_adress)
             if (first.name == second.name &&
                 first.anrede == second.anrede &&
                 first.anredzus == second.anredzus &&
@@ -91,11 +113,14 @@ public class CombineAddresses
         return false;
     }
 
-    public async Task<(KasAddressList,KasAddressList)> Difference(List<KasAddressList> address_lists, bool? return_unused,
+    public async Task<(KasAddressList, KasAddressList)> Difference(List<KasAddressList> address_lists, CombineType comb_type,
+        bool? return_unused,
         Progress? progress = null)
+    {
+        try
         {
             if (address_lists == null || address_lists.Count == 0)
-            return (new KasAddressList(KasAddressList.GenerateName("difference")),null);
+                return (new KasAddressList(await KasAddressList.GenerateName("difference")), null);
     
             progress ??= new Progress
             {
@@ -107,12 +132,14 @@ public class CombineAddresses
             var restUnion = new List<KasPerson>();
             for (var i = 1; i < address_lists.Count; i++)
                 restUnion.AddRange(address_lists[i].KasPersons);
-        var result = new KasAddressList(KasAddressList.GenerateName("difference"));
+            var result = new KasAddressList(await KasAddressList.GenerateName("difference"));
-        var second_result = new KasAddressList(KasAddressList.GenerateName("difference_rest"));
+            var second_result = new KasAddressList("none");
+            if(return_unused == true)
+                second_result = new KasAddressList(await KasAddressList.GenerateName("difference_rest", false));
     
             foreach (var person in address_lists[0].KasPersons)
             {
-            var isDouble = restUnion.Any(p => CompareAddresses(person, p));
+                var isDouble = restUnion.Any(p => CompareAddresses(person, p, comb_type));
                 if (!isDouble)
                     result.KasPersons.Add(person);
                 else
@@ -122,18 +149,32 @@ public class CombineAddresses
                 progress.Increment();
                 if (progress.LogAction == null) continue;
                 var logMessage =
-                $"Person mit refsid {person.refsid} verglichen mit {restUnion.Count} Personen des Restes.";
+                    $"Person mit id {person.id} verglichen mit {restUnion.Count} Personen des Restes.";
                 await Dispatcher.UIThread.InvokeAsync(() => progress.LogAction?.Invoke(logMessage));
             }
+    
             if (return_unused == true) return (result, second_result);
-        else return (result, null);
+            return (result, null);
+        }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while performing difference-combining: {ex.Message}", Logger.LogType.Error);
+        }
+
+        return (null,null);
+        
     }
 
 
-    public async Task<(KasAddressList,KasAddressList)> Union(List<KasAddressList> address_lists, bool? return_unused, Progress progress = null)
+    public async Task<(KasAddressList, KasAddressList)> Union(List<KasAddressList> address_lists, CombineType comb_type, bool? return_unused,
+        Progress progress = null)
     {
-        var result = new KasAddressList(KasAddressList.GenerateName("union"));
+        try
-        var second_result = new KasAddressList(KasAddressList.GenerateName("union_rest"));
+        {
+            var result = new KasAddressList(await KasAddressList.GenerateName("union"));
+            var second_result = new KasAddressList("none");
+            if(return_unused == true)
+                second_result = new KasAddressList(await KasAddressList.GenerateName("union_rest", false));
     
             if (address_lists == null || address_lists.Count == 0)
                 return (result, null);
@@ -144,7 +185,7 @@ public class CombineAddresses
             foreach (var list in address_lists)
             foreach (var person in list.KasPersons)
             {
-            if (!result.KasPersons.Any(existing => CompareAddresses(existing, person)))
+                if (!result.KasPersons.Any(existing => CompareAddresses(existing, person, comb_type)))
                     result.KasPersons.Add(person);
                 else
                     second_result.KasPersons.Add(person);
@@ -152,7 +193,7 @@ public class CombineAddresses
                 processed++;
                 var percent = processed / (double)total * 100;
                 var logMessage =
-                $"{percent:F1}%: Person mit {person.refsid} hinzugefügt (aktuell {result.KasPersons.Count} Einträge)";
+                    $"{percent:F1}%: Person mit {person.id} hinzugefügt (aktuell {result.KasPersons.Count} Einträge)";
     
                 if (progress == null) continue;
                 if (Dispatcher.UIThread.CheckAccess())
@@ -162,7 +203,15 @@ public class CombineAddresses
             }
     
             if (return_unused == true) return (result, second_result);
-        else return (result, null);
+            return (result, null);
+        }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while performing union-combining: {ex.Message}", Logger.LogType.Error);
+        }
+
+        return (null,null);
+        
     }
 
 
@@ -171,10 +220,14 @@ public class CombineAddresses
         return null;
     }
 
-    public async Task<(KasAddressList,KasAddressList)> Intersection(List<KasAddressList> address_lists, bool? return_unused, Progress progress = null)
+    public async Task<(KasAddressList, KasAddressList)> Intersection(List<KasAddressList> address_lists, CombineType comb_type,
+        bool? return_unused, Progress progress = null)
     {
-        var result = new KasAddressList(KasAddressList.GenerateName("intersection"));
+        try
-        var second_result = new KasAddressList(KasAddressList.GenerateName("intersection_rest"));
+        {
+            var result = new KasAddressList(await KasAddressList.GenerateName("intersection"));
+            var second_result = new KasAddressList("none");
+            if(return_unused == true) second_result = new KasAddressList(await KasAddressList.GenerateName("intersection_rest", false));
     
             if (address_lists == null || address_lists.Count == 0)
                 return (result, null);
@@ -190,7 +243,7 @@ public class CombineAddresses
             {
                 // Prüfen, ob Person in *allen* anderen Listen vorkommt
                 var isInAll = otherLists.All(list =>
-                list.KasPersons.Any(existing => CompareAddresses(existing, person)));
+                    list.KasPersons.Any(existing => CompareAddresses(existing, person, comb_type)));
     
                 if (isInAll)
                     result.KasPersons.Add(person);
@@ -200,7 +253,7 @@ public class CombineAddresses
                 processed++;
                 var percent = processed / (double)total * 100;
                 var logMessage =
-                $"{percent:F1}%: Person mit {person.refsid} geprüft – {(isInAll ? "in allen enthalten" : "nicht überall vorhanden")}";
+                    $"{percent:F1}%: Person mit {person.id} geprüft – {(isInAll ? "in allen enthalten" : "nicht überall vorhanden")}";
     
                 // Sicher und nicht blockierend loggen
                 if (progress != null)
@@ -213,14 +266,26 @@ public class CombineAddresses
             }
     
             if (return_unused == true) return (result, second_result);
-        else return (result, null);
+            return (result, null);
+        }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while performing intersection-combining: {ex.Message}", Logger.LogType.Error);
+        }
+
+        return (null,null);
+        
     }
 
 
-    public async Task<(KasAddressList,KasAddressList)> SymmetricDifference(List<KasAddressList> address_lists, bool? return_unused, Progress progress = null)
+    public async Task<(KasAddressList, KasAddressList)> SymmetricDifference(List<KasAddressList> address_lists, CombineType comb_type,
+        bool? return_unused, Progress progress = null)
     {
-        var result = new KasAddressList(KasAddressList.GenerateName("symmetric_difference"));
+        try
-        var second_result = new KasAddressList(KasAddressList.GenerateName("symmetric_rest"));
+        {
+            var result = new KasAddressList(await KasAddressList.GenerateName("symmetric_difference"));
+            var second_result = new KasAddressList("none");
+            if(return_unused == true) second_result = new KasAddressList(await KasAddressList.GenerateName("symmetric_rest", false));
     
             if (address_lists == null || address_lists.Count == 0)
                 return (result, null);
@@ -235,7 +300,7 @@ public class CombineAddresses
             foreach (var person in list.KasPersons)
             {
                 // Prüfen, ob schon vorhanden
-            var existing = allPersons.FirstOrDefault(p => CompareAddresses(p.person, person));
+                var existing = allPersons.FirstOrDefault(p => CompareAddresses(p.person, person, comb_type));
                 if (existing.person != null)
                 {
                     // Falls schon drin → Vorkommen erhöhen
@@ -251,7 +316,7 @@ public class CombineAddresses
                 processed++;
                 var percent = processed / (double)total * 100;
                 var logMessage =
-                $"{percent:F1}%: Person mit {person.refsid} verarbeitet (Zwischengröße {allPersons.Count})";
+                    $"{percent:F1}%: Person mit {person.id} verarbeitet (Zwischengröße {allPersons.Count})";
     
                 if (progress != null)
                 {
@@ -270,68 +335,17 @@ public class CombineAddresses
                     second_result.KasPersons.Add(person);
     
             if (return_unused == true) return (result, second_result);
-        else return (result, null);
+            return (result, null);
+        }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while performing symdiff-combining: {ex.Message}", Logger.LogType.Error);
         }
 
+        return (null,null);
+        
+    }
     
-    // private async Task<KasAddressList> Merge(KasAddressList first, KasAddressList second, int num, int total)
-    // {
-    //     foreach (var sec in second.KasPersons)
-    //     {
-    //         var is_new = true;
-    //         foreach (var fi in first.KasPersons)
-    //         {
-    //             if (fi.refsid == sec.refsid)
-    //             {
-    //                 is_new = false;
-    //                 break;
-    //             }
-    //
-    //             if (fi.name == sec.name &&
-    //                 fi.anrede == sec.anrede &&
-    //                 fi.anredzus == sec.anredzus &&
-    //                 fi.namezus == sec.namezus &&
-    //                 fi.titel == sec.titel &&
-    //                 fi.adel == sec.adel &&
-    //                 fi.strasse == sec.strasse &&
-    //                 fi.strasse2 == sec.strasse2 &&
-    //                 fi.vorname == sec.vorname &&
-    //                 fi.ort == sec.ort &&
-    //                 fi.land == sec.land &&
-    //                 fi.plz == sec.plz &&
-    //                 fi.pplz == sec.pplz &&
-    //                 fi.funktion == sec.funktion &&
-    //                 fi.funktion2 == sec.funktion2 &&
-    //                 fi.funktionad == sec.funktionad &&
-    //                 fi.abteilung == sec.abteilung &&
-    //                 fi.postfach == sec.postfach &&
-    //                 fi.name1 == sec.name1 &&
-    //                 fi.name2 == sec.name2 &&
-    //                 fi.name3 == sec.name3 &&
-    //                 fi.name4 == sec.name4 &&
-    //                 fi.name5 == sec.name5)
-    //             {
-    //                 is_new = false;
-    //                 break;
-    //             }
-    //         }
-    //
-    //         if (is_new) first.KasPersons.Add(sec);
-    //         var subperc = second.KasPersons.IndexOf(sec) / second.KasPersons.Count;
-    //         var percent = (num + (double)subperc) / total * 100;
-    //         await Dispatcher.UIThread.InvokeAsync(() =>
-    //         {
-    //             if (is_new)
-    //                 _progress.AddToLog($"Person mit refsid {sec.refsid} ergänzt");
-    //             else
-    //                 _progress.AddToLog($"Person mit refsid {sec.refsid} bereits vorhanden");
-    //
-    //             _progress.ChangePercentage(percent);
-    //         });
-    //     }
-    //
-    //     return first;
-    // }
 }
 
 public class Progress

Tasks/CsvBuilder.cs

@@ -0,0 +1,86 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace Logof_Client;
+
+public class CsvBuilder
+{
+    private readonly string Header;
+    private readonly List<object> Instances;
+    private readonly KasAddressList KasAddressList;
+    private readonly char Separator;
+
+    public CsvBuilder(string header, List<object> instances, char separator = ',')
+    {
+        Header = header;
+        Instances = instances;
+        Separator = separator;
+    }
+
+    public CsvBuilder(string header, KasAddressList instances, char separator = ',')
+    {
+        Header = header;
+        KasAddressList = instances;
+        Separator = separator;
+    }
+
+    public string? BuildKas()
+    {
+        var result = new StringBuilder();
+
+        result.AppendLine(Header);
+        foreach (var l in KasAddressList.KasPersons)
+            result.AppendLine(string.Join(Separator, new[]
+            {
+                EscapeCsvField(l.refsid.ToString()),
+                EscapeCsvField(l.anrede),
+                EscapeCsvField(l.titel),
+                EscapeCsvField(l.vorname),
+                EscapeCsvField(l.adel),
+                EscapeCsvField(l.name),
+                EscapeCsvField(l.namezus),
+                EscapeCsvField(l.anredzus),
+                EscapeCsvField(l.strasse),
+                EscapeCsvField(l.strasse2),
+                EscapeCsvField(l.plz),
+                EscapeCsvField(l.ort),
+                EscapeCsvField(l.land),
+                EscapeCsvField(l.pplz),
+                EscapeCsvField(l.postfach),
+                EscapeCsvField(l.name1),
+                EscapeCsvField(l.name2),
+                EscapeCsvField(l.name3),
+                EscapeCsvField(l.name4),
+                EscapeCsvField(l.name5),
+                EscapeCsvField(l.funktion),
+                EscapeCsvField(l.funktion2),
+                EscapeCsvField(l.abteilung),
+                EscapeCsvField(l.funktionad)
+            }));
+
+        // weitere Cases
+        return result.ToString();
+    }
+
+    private string EscapeCsvField(string? value)
+    {
+        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 "";
+
+    }
+}

Tasks/DataImport.cs

@@ -0,0 +1,310 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Logof_Client;
+
+public class DataImport
+{
+    public static async Task<(bool, KasAddressList)> ImportKasAddressList(Uri pathToCsv, AddressPatch patch = null,
+        char separator = ',')
+    {
+        if (patch == null)
+            return await ImportKasAddressListWithoutPatch(pathToCsv, separator);
+        return await ImportKasAddressListWithPatch(pathToCsv, patch, separator);
+    }
+
+    private static async Task<(bool, KasAddressList)> ImportKasAddressListWithoutPatch(Uri pathToCsv, char separator)
+    {
+        try
+        {
+            if (!File.Exists(pathToCsv.LocalPath))
+            {
+                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 (false, null);
+    }
+
+    private static async Task<(bool, KasAddressList)> ImportKasAddressListWithPatch(Uri pathToCsv, AddressPatch patch,
+        char separator)
+    {
+        try
+        {
+            if (!File.Exists(pathToCsv.LocalPath))
+            {
+                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($"Error while importing kas address list with patch: {ex.Message}",Logger.LogType.Error);
+        }
+        
+
+        // int GenerateNewRefsid()
+        // {
+        //     var biggest = last_refsid;
+        //     foreach (var set in Settings._instance.addressSets.addresses)
+        //     foreach (var address in set.KasPersons)
+        //         if (biggest < address.id)
+        //             biggest = address.id + 1;
+        //
+        //     last_refsid = biggest + 1;
+        //     return last_refsid;
+        // }
+        return (false, null);
+    }
+
+
+    private static int ParseInt(string input)
+    {
+        return int.TryParse(input, out var result) ? result : 0;
+    }
+
+    private static string[] ParseCsvLine(string line, char separator)
+    {
+        try
+        {
+            var fields = new List<string>();
+            var current = new StringBuilder();
+            var inQuotes = false;
+
+            for (var i = 0; i < line.Length; i++)
+            {
+                var c = line[i];
+
+                if (c == '"')
+                {
+                    if (inQuotes && i + 1 < line.Length && line[i + 1] == '"')
+                    {
+                        current.Append('"');
+                        i++;
+                        continue;
+                    }
+
+                    inQuotes = !inQuotes;
+                    continue;
+                }
+
+                if (c == separator && !inQuotes)
+                {
+                    fields.Add(current.ToString().Trim());
+                    current.Clear();
+                    continue;
+                }
+
+                current.Append(c);
+            }
+
+            fields.Add(current.ToString().Trim());
+            return fields.ToArray();
+        }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while persing csv line: {ex.Message}",Logger.LogType.Error);
+        }
+
+        return [];
+    }
+}

Tasks/PdfBuilder.cs

@@ -0,0 +1,483 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using PdfSharp;
+using PdfSharp.Drawing;
+using PdfSharp.Fonts;
+using PdfSharp.Pdf;
+
+namespace Logof_Client;
+
+public class PdfBuilder
+{
+    private readonly PdfExportSettings _settings;
+    private readonly XFont _boldFont;
+    private readonly XFont _regularFont;
+    private readonly XFont _smallFont;
+
+    public PdfBuilder(PdfExportSettings? settings = null)
+    {
+        try
+        {
+            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))
+                {
+                    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($"Error while searching for fonts: {ex.Message}",Logger.LogType.Error);
+                chosenFamily = "Arial";
+            }
+
+            _boldFont = new XFont(chosenFamily, _settings.fontSize, XFontStyleEx.Bold);
+            _regularFont = new XFont(chosenFamily, _settings.fontSize, XFontStyleEx.Regular);
+            _smallFont = new XFont(chosenFamily, _settings.smallFontSize, XFontStyleEx.Regular);
+        }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while font resolving: {ex.Message}",Logger.LogType.Error);
+        }
+        
+
+    }
+
+    private static void EnsureFontResolverRegistered()
+    {
+        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($"Error while ensuring font resolver register state: {ex.Message}",Logger.LogType.Error);
+        }
+        
+    }
+
+    private static string StripStyleSuffix(string name)
+    {
+        try
+        {
+            if (string.IsNullOrEmpty(name)) return name;
+            var idx = name.IndexOf('-');
+            if (idx < 0) idx = name.IndexOf('_');
+            if (idx > 0)
+                return name.Substring(0, idx);
+            return name;
+        }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while stripping style suffix: {ex.Message}",Logger.LogType.Error);
+        }
+
+        return null;
+
+    }
+
+
+    /// <summary>
+    ///     Creates a PDF document with address stickers from an AddressSet with a placeholder in the first cell.
+    /// </summary>
+    /// <param name="addressSetId">The ID of the AddressSet to use</param>
+    /// <param name="placeholderText">Text for the first cell (top-left)</param>
+    /// <param name="outputPath">Path where the PDF should be saved</param>
+    public void CreateAddressLabelPdfFromAddressSetWithPlaceholder(int addressSetId, string placeholderText,
+        string outputPath)
+    {
+        try
+        {
+            // 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 (Exception ex)
+        {
+            Logger.Log($"Error while creating address label pdf from address set with placeholder: {ex.Message}",Logger.LogType.Error);
+        }
+        
+    }
+
+    /// <summary>
+    ///     Creates a PDF document with a single placeholder cell for other information.
+    /// </summary>
+    /// <param name="addresses">Array of addresses</param>
+    /// <param name="placeholderText">Text for the first cell (top-left)</param>
+    /// <param name="outputPath">Path where the PDF should be saved</param>
+    public void CreateAddressLabelPdfWithPlaceholder(List<string> addresses, string placeholderText, string outputPath)
+    {
+        try
+        {
+                if (addresses == null || addresses.Count == 0)
+                    throw new ArgumentException("Addresses array cannot be null or empty");
+
+                var document = new PdfDocument();
+
+                var addressIndex = 0;
+                var isFirstCell = true;
+
+                while (addressIndex < addresses.Count || isFirstCell)
+                {
+                    var page = document.AddPage();
+                    page.Size = PageSize.A4;
+
+                    using (var gfx = XGraphics.FromPdfPage(page))
+                    {
+                        DrawPageWithPlaceholder(gfx, addresses, ref addressIndex, ref isFirstCell, placeholderText);
+                    }
+                }
+
+                document.Save(outputPath);
+        }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while creating address label pdf with placeholder: {ex.Message}",Logger.LogType.Error);
+        }
+        
+    }
+
+    private void DrawPage(XGraphics gfx, List<string> addresses, ref int addressIndex)
+    {
+        for (var row = 0; row < _settings.rowsPerPage; row++)
+        {
+            for (var col = 0; col < _settings.columnsPerPage; col++)
+            {
+                if (addressIndex >= addresses.Count) break;
+
+                var x = MmToPoints(_settings.pageMarginLeftMm + col * GetCellWidthMm());
+                var y = MmToPoints(_settings.pageMarginTopMm + row * GetCellHeightMm());
+
+                DrawCell(gfx, x, y, addresses[addressIndex]);
+                addressIndex++;
+            }
+
+            if (addressIndex >= addresses.Count) break;
+        }
+    }
+
+    private void DrawPageWithPlaceholder(XGraphics gfx, List<string> addresses, ref int addressIndex,
+        ref bool isFirstCell, string placeholderText)
+    {
+        try
+        {
+            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);
+                }
+            }
+        }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while drawing page with placholder: {ex.Message}",Logger.LogType.Error);
+        }
+        
+    }
+
+    private void DrawCell(XGraphics gfx, double x, double y, string? address)
+    {
+        try
+        {
+            var cellWidthPoints = MmToPoints(GetCellWidthMm());
+            var cellHeightPoints = MmToPoints(GetCellHeightMm());
+
+            // Draw cell border
+            var rect = new XRect(x, y, cellWidthPoints, cellHeightPoints);
+            gfx.DrawRectangle(XPens.Black, rect);
+
+            // Draw address content if available
+            if (!string.IsNullOrEmpty(address)) DrawMarkdownText(gfx, address, x, y, cellWidthPoints, cellHeightPoints);
+        }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while drawing cell: {ex.Message}",Logger.LogType.Error);
+        }
+        
+    }
+
+    private void DrawEmptyCell(XGraphics gfx, double x, double y)
+    {
+        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($"Error while drawing empty cell: {ex.Message}",Logger.LogType.Error);
+        }
+        
+    }
+
+    private void DrawMarkdownText(XGraphics gfx, string text, double x, double y, double cellWidth, double cellHeight)
+    {
+        try
+        {
+            var paddingLeftPoints = MmToPoints(_settings.cellPaddingLeftMm);
+            var paddingRightPoints = MmToPoints(_settings.cellPaddingRightMm);
+            var paddingTopPoints = MmToPoints(_settings.cellPaddingTopMm);
+            var paddingBottomPoints = MmToPoints(_settings.cellPaddingBottomMm);
+
+            var maxWidth = Math.Max(0, cellWidth - paddingLeftPoints - paddingRightPoints);
+
+            // Split text by newlines and remove empty trailing lines
+            var rawLines = text.Split(new[] { "\n" }, StringSplitOptions.None);
+            var lines = rawLines.Where(l => l != null).ToArray();
+
+            // Use a conservative line height in points
+            var lineHeight = _regularFont.Size * 1.2;
+
+            // Calculate total height of the text block
+            var totalHeight = lines.Length * lineHeight;
+
+            // Start drawing from the top of the cell (align addresses to top)
+            var startY = y + paddingTopPoints;
+
+            var currentY = startY;
+
+            foreach (var line in lines)
+            {
+                // Stop if we've reached the top boundary
+                if (currentY + lineHeight > y + cellHeight - paddingBottomPoints + 0.001)
+                    break;
+
+                // Parse and draw the line with markdown support
+                DrawLineWithMarkdown(gfx, line, x + paddingLeftPoints, currentY, maxWidth);
+                currentY += lineHeight;
+            }
+        }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while drawing markdown text: {ex.Message}",Logger.LogType.Error);
+        }
+        
+    }
+
+    private void DrawLineWithMarkdown(XGraphics gfx, string line, double x, double y, double maxWidth)
+    {
+        try
+        {
+            if (string.IsNullOrWhiteSpace(line)) return;
+            var currentX = x;
+            var i = 0;
+
+            while (i < line.Length)
+            {
+                if (currentX - x >= maxWidth)
+                    break;
+
+                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))
+                        {
+                            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;
+                        }
+
+                        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)
+                    {
+                        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)
+                    {
+                        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;
+            }
+        }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while drawing markdown line: {ex.Message}",Logger.LogType.Error);
+        }
+        
+    }
+
+    private string TruncateTextToWidth(XGraphics gfx, string text, XFont font, double maxWidth)
+    {
+        try
+        {
+            if (string.IsNullOrEmpty(text))
+                return text;
+
+            for (var len = text.Length; len > 0; len--)
+            {
+                var truncated = text.Substring(0, len);
+                var measured = gfx.MeasureString(truncated, font);
+                if (measured.Width <= maxWidth)
+                    return truncated;
+            }
+
+            return string.Empty;
+        }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while truncating text to width: {ex.Message}",Logger.LogType.Error);
+        }
+
+        return null;
+    }
+
+    /// <summary>
+    ///     Converts millimeters to points (1 mm = 2.834645669 points)
+    /// </summary>
+    private double MmToPoints(double mm)
+    {
+        return mm * 2.834645669;
+    }
+
+    private double GetCellWidthMm()
+    {
+        var availableWidthMm = 210d - _settings.pageMarginLeftMm - _settings.pageMarginRightMm;
+        return availableWidthMm / _settings.columnsPerPage;
+    }
+
+    private double GetCellHeightMm()
+    {
+        var availableHeightMm = 297d - _settings.pageMarginTopMm - _settings.pageMarginBottomMm;
+        return availableHeightMm / _settings.rowsPerPage;
+    }
+
+    // Configuration methods to allow customization
+
+    /// <summary>
+    ///     Sets the cell dimensions in millimeters
+    /// </summary>
+    public void SetCellDimensions(double width, double height)
+    {
+        if (width <= 0 || height <= 0)
+            throw new ArgumentException("Cell dimensions must be positive");
+    }
+
+    /// <summary>
+    ///     Sets the page margins in millimeters
+    /// </summary>
+    public void SetMargins(double left, double top, double right, double bottom)
+    {
+        if (left < 0 || top < 0 || right < 0 || bottom < 0)
+            throw new ArgumentException("Margins cannot be negative");
+    }
+}

Tasks/StableFontResolver.cs

@@ -0,0 +1,163 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using PdfSharp.Fonts;
+using System.Globalization;
+
+namespace Logof_Client;
+
+public class StableFontResolver : IFontResolver
+{
+    // family -> style -> bytes
+    private readonly Dictionary<string, Dictionary<string, byte[]>> _families = new(StringComparer.OrdinalIgnoreCase);
+    private readonly List<string> _orderedFamilies = new();
+
+    public StableFontResolver(string fontsDirectory)
+    {
+        try
+        {
+            if (string.IsNullOrEmpty(fontsDirectory)) return;
+            if (!Directory.Exists(fontsDirectory)) return;
+
+            var files = Directory.EnumerateFiles(fontsDirectory, "*.ttf");
+            foreach (var f in files)
+            {
+                try
+                {
+                    var baseName = Path.GetFileNameWithoutExtension(f);
+                    if (string.IsNullOrEmpty(baseName)) continue;
+
+                    // Try to split family and style by hyphen or underscore
+                    var family = baseName;
+                    var style = "Regular";
+
+                    var idx = baseName.IndexOf('-');
+                    if (idx < 0) idx = baseName.IndexOf('_');
+                    if (idx > 0)
+                    {
+                        family = baseName.Substring(0, idx);
+                        style = baseName.Substring(idx + 1);
+                    }
+
+                    // Normalize common style names
+                    style = NormalizeStyle(style);
+
+                    var data = File.ReadAllBytes(f);
+                    if (data == null || data.Length == 0) continue;
+
+                    if (!_families.TryGetValue(family, out var dict))
+                    {
+                        dict = new Dictionary<string, byte[]>(StringComparer.OrdinalIgnoreCase);
+                        _families[family] = dict;
+                        _orderedFamilies.Add(family);
+                    }
+
+                    if (!dict.ContainsKey(style))
+                        dict[style] = data;
+                }
+                catch
+                {
+                    // ignore individual font load errors
+                }
+            }
+        }
+        catch (Exception ex)
+        {
+            Logger.Log($"Error while initializing FontResolver: {ex.Message}",Logger.LogType.Error);
+        }
+    }
+
+    private static string NormalizeStyle(string s)
+    {
+        try
+        {
+            if (string.IsNullOrEmpty(s)) return "Regular";
+            s = s.ToLowerInvariant();
+            if (s.Contains("bold") && s.Contains("italic")) return "BoldItalic";
+            if (s.Contains("bold")) return "Bold";
+            if (s.Contains("italic") || s.Contains("oblique")) return "Italic";
+            if (s.Contains("regular") || s == "r") return "Regular";
+            return CultureInfo.InvariantCulture.TextInfo.ToTitleCase(s);
+        }
+        catch (Exception ex)
+        {
+            Logger.Log($"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

@@ -0,0 +1,17 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        x:Class="Logof_Client.Wiki.EditorWindow"
+        Title="Wiki Editor" MinWidth="600" MinHeight="350" WindowState="Maximized">
+    <Grid Margin="10,0,10,10">
+        <Grid.RowDefinitions>
+            <RowDefinition Height="50" />
+            <RowDefinition Height="*" />
+        </Grid.RowDefinitions>
+        <StackPanel Grid.Row="0" Spacing="10" Orientation="Horizontal">
+            <Button x:Name="BtnSave" Content="Speichern" Click="BtnSave_OnClick" />
+            <Button x:Name="BtnSaveAs" Content="Speichern unter..." Click="BtnSaveAs_OnClick" />
+            <Button x:Name="BtnDelete" Content="Löschen" Click="BtnDelete_OnClick" />
+        </StackPanel>
+        <TextBox AcceptsTab="True" AcceptsReturn="True" Grid.Row="1" x:Name="TbContent" />
+    </Grid>
+</Window>

Wiki/EditorWindow.axaml.cs

@@ -0,0 +1,69 @@
+using System;
+using System.IO;
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+
+namespace Logof_Client.Wiki;
+
+public partial class EditorWindow : Window
+{
+    public string filename = "";
+
+    public EditorWindow(string filename = "")
+    {
+        try
+        {
+            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($"Error while : {ex.Message}",Logger.LogType.Error);}
+        
+    }
+
+    private void BtnSave_OnClick(object? sender, RoutedEventArgs e)
+    {
+        try
+        {
+            File.WriteAllText(filename, TbContent.Text);
+            MainWindow._instance.PopulateNavTree();
+        }
+        catch (Exception ex)
+        {
+            MessageBox.Show(null,
+                "Es ist ein Fehler aufgetreten. Bitte senden Sie ihn über git.mypapercloud.de/fierke/logofclient ein:\n" +
+                ex.StackTrace, "Fehler");
+            Logger.Log($"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 " +
+            PathUtilities.NormalizeFileSystemPath(Global._instance.wiki_storage_path),
+            "Fehler");
+    }
+
+    private async void BtnDelete_OnClick(object? sender, RoutedEventArgs e)
+    {
+        var result = await MessageBox.Show(null, "Sicher?", "Sicher?", MessageBoxButton.YesNo);
+        if (result == MessageBoxResult.No) return;
+        try
+        {
+            File.Delete(filename);
+        } catch  (Exception ex) { Logger.Log($"Error while : {ex.Message}",Logger.LogType.Error);}
+        
+        MainWindow._instance.PopulateNavTree();
+        Close();
+    }
+}

Wiki/MarkdownRenderer.cs

@@ -0,0 +1,140 @@
+using System;
+using System.Collections.Generic;
+using Avalonia.Controls;
+using Avalonia.Media;
+using Markdig;
+using Markdig.Syntax;
+using Markdig.Syntax.Inlines;
+using System.Text;
+
+namespace Logof_Client.Wiki;
+
+public static class MarkdownRenderer
+{
+    public static Control Render(string markdown)
+    {
+        try
+        {
+            var panel = new StackPanel { Spacing = 6 };
+            if (string.IsNullOrWhiteSpace(markdown)) return panel;
+    
+            var doc = Markdown.Parse(markdown);
+    
+            foreach (var block in doc)
+            {
+                switch (block)
+                {
+                    case HeadingBlock hb:
+                    {
+                        var text = GetInlineText(hb.Inline);
+                        var tb = new TextBlock
+                        {
+                            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 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;
+        } catch  (Exception ex) { Logger.Log($"Error while : {ex.Message}",Logger.LogType.Error);}
+
+        return new Panel();
+    }
+
+    private static string GetInlineText(ContainerInline? container)
+    {
+        try
+        {
+            if (container == null) return string.Empty;
+            var sb = new StringBuilder();
+            foreach (var inline in container)
+            {
+                switch (inline)
+                {
+                    case LiteralInline li:
+                        sb.Append(li.Content.ToString());
+                        break;
+                    case EmphasisInline ei:
+                        sb.Append(GetInlineText(ei));
+                        break;
+                    case CodeInline ci:
+                        sb.Append(ci.Content);
+                        break;
+                    case LinkInline li:
+                        sb.Append(GetInlineText(li));
+                        break;
+                    case LineBreakInline:
+                        sb.Append("\n");
+                        break;
+                    default:
+                        sb.Append(inline.ToString());
+                        break;
+                }
+            }
+
+            return sb.ToString();
+        } catch  (Exception ex) { Logger.Log($"Error while : {ex.Message}",Logger.LogType.Error);}
+
+        return null;
+    }
+}

Wiki/WikiItem.cs

@@ -0,0 +1,13 @@
+using System.Collections.ObjectModel;
+
+namespace Logof_Client.Wiki;
+
+public class WikiItem
+{
+    public string Name { get; set; }
+    public string Path { get; set; }
+    public bool IsFolder { get; set; }
+    public ObservableCollection<WikiItem> Children { get; } = new();
+
+    public override string ToString() => Name;
+}

Wiki/WikiService.cs

@@ -0,0 +1,74 @@
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace Logof_Client.Wiki;
+
+public class WikiService
+{
+    public WikiService(string wikiRoot = null)
+    {
+        // prefer global wiki storage path if configured
+        if (Global._instance != null && !string.IsNullOrWhiteSpace(Global._instance.wiki_storage_path))
+        {
+            var cfg = PathUtilities.NormalizeFileSystemPath(Global._instance.wiki_storage_path);
+            WikiRootFullPath = Path.IsPathRooted(cfg)
+                ? cfg
+                : Path.Combine(Directory.GetCurrentDirectory(), cfg);
+            WikiRoot = WikiRootFullPath;
+        }
+        else
+        {
+            if (wikiRoot == null)
+                wikiRoot = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData),
+                    "logofclient",
+                    "wiki");
+            wikiRoot = PathUtilities.NormalizeFileSystemPath(wikiRoot);
+            WikiRoot = wikiRoot;
+            WikiRootFullPath = Path.IsPathRooted(wikiRoot)
+                ? wikiRoot
+                : Path.Combine(Directory.GetCurrentDirectory(), wikiRoot);
+        }
+    }
+
+    public string WikiRoot { get; }
+    public string WikiRootFullPath { get; }
+
+    public List<WikiItem> GetRootItems()
+    {
+        var list = new List<WikiItem>();
+
+        if (!Directory.Exists(WikiRootFullPath)) return list;
+
+        var dirInfo = new DirectoryInfo(WikiRootFullPath);
+
+        // Add folders
+        foreach (var dir in dirInfo.GetDirectories()) list.Add(BuildFolderItem(dir));
+
+        // Add files in root
+        foreach (var file in dirInfo.GetFiles("*.md"))
+            list.Add(new WikiItem { Name = file.Name, Path = file.FullName, IsFolder = false });
+
+        return list.OrderBy(i => i.IsFolder ? 0 : 1).ToList();
+    }
+
+    private WikiItem BuildFolderItem(DirectoryInfo dir)
+    {
+        var node = new WikiItem { Name = dir.Name, Path = dir.FullName, IsFolder = true };
+
+        foreach (var subdir in dir.GetDirectories()) node.Children.Add(BuildFolderItem(subdir));
+
+        foreach (var file in dir.GetFiles("*.md"))
+            node.Children.Add(new WikiItem { Name = file.Name, Path = file.FullName, IsFolder = false });
+
+        return node;
+    }
+
+    public Task<string?> LoadFileContentAsync(string path)
+    {
+        if (!File.Exists(path)) return Task.FromResult<string?>(null);
+        return File.ReadAllTextAsync(path);
+    }
+}

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}