Erste Version

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Services/Settings.cs

@@ -0,0 +1,56 @@
+using System.Security.Cryptography;
+using System.Text;
+using System.Text.Json;
+
+namespace BSO.Launcher;
+
+/// <summary>
+/// Einstellungen und Anmeldung in %LocalAppData%\BSO Launcher\settings.json. Der Token ist mit DPAPI verschluesselt
+/// (nur dieser Windows-Benutzer auf diesem PC kann ihn lesen).
+/// </summary>
+public sealed class Settings
+{
+    public static string Folder => Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), "BSO Launcher");
+    static string FilePath => Path.Combine(Folder, "settings.json");
+    static readonly JsonSerializerOptions Options = new() { WriteIndented = true };
+
+    public string? Username { get; set; }
+    public string? ProtectedToken { get; set; }
+    /// <summary>Spielordner von Hand gewaehlt (sonst automatisch aus den Steam-Bibliotheken).</summary>
+    public string? GameFolder { get; set; }
+    public string Server { get; set; } = "127.0.0.1:7777";
+    public bool AutoConnect { get; set; } = true;
+    public bool KeepOpen { get; set; }
+    public bool AutoUpdateMod { get; set; } = true;
+
+    [System.Text.Json.Serialization.JsonIgnore]
+    public string? Token
+    {
+        get
+        {
+            if (string.IsNullOrEmpty(ProtectedToken)) return null;
+            try { return Encoding.UTF8.GetString(ProtectedData.Unprotect(Convert.FromBase64String(ProtectedToken), null, DataProtectionScope.CurrentUser)); }
+            catch { return null; }
+        }
+        set => ProtectedToken = value == null ? null
+            : Convert.ToBase64String(ProtectedData.Protect(Encoding.UTF8.GetBytes(value), null, DataProtectionScope.CurrentUser));
+    }
+
+    public static Settings Load()
+    {
+        try
+        {
+            if (File.Exists(FilePath)) return JsonSerializer.Deserialize<Settings>(File.ReadAllText(FilePath)) ?? new Settings();
+        }
+        catch (Exception e) { LauncherLog.Error("settings.json nicht lesbar: " + e.Message); }
+        return new Settings();
+    }
+
+    public void Save()
+    {
+        Directory.CreateDirectory(Folder);
+        string tmp = FilePath + ".tmp";
+        File.WriteAllText(tmp, JsonSerializer.Serialize(this, Options));
+        File.Move(tmp, FilePath, true);
+    }
+}