Dashboard-Performance, CI-Workflow, Settings-Aufteilung, Backup-Härtung
- Dashboard: Fehlzeiten-Warnung lädt Mitarbeitssitzungen einmal vorab statt pro Schüler/Eintrag einzeln nachzuschlagen (N+1 vermieden); neues IParticipationSessionRepository.GetAll() dafür. - CI: .gitea/workflows/ci.yml baut und testet bei jedem Push/PR. Dabei fehlende Release|Any CPU-Konfiguration für 6 Projekte in der .sln behoben (LehrerApp.Data.Tests wurde bei Release-Builds der Solution bislang stillschweigend übersprungen). TreatWarningsAsErrors jetzt aktiv. - SettingsViewModel (1986 Zeilen) als partial class auf 20 Themen- dateien aufgeteilt, Verhalten unverändert. - Backup: optionaler zweiter Sicherungsordner (USB-Stick/Netzlaufwerk, best-effort) und Integritätsprüfung nach jedem Backup (DatabaseEncryptionService.CanOpenAndRead). Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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using CommunityToolkit.Mvvm.ComponentModel;
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using CommunityToolkit.Mvvm.Input;
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using LehrerApp.Core.Interfaces;
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using LehrerApp.Core.Models;
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using LehrerApp.Core.Services;
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using LehrerApp.Data;
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using LehrerApp.Desktop.Services;
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using LehrerApp.Desktop.ViewModels.Planning;
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using LehrerApp.Sync;
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using LehrerApp.Sync.Crypto;
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using System.Collections.ObjectModel;
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using System.Globalization;
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using System.Security.Cryptography;
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using System.Text.Json;
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using System.Text.Json.Serialization;
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namespace LehrerApp.Desktop.ViewModels.Settings;
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public partial class SettingsViewModel
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{
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// ── Sicherheit: Datenbank-Verschlüsselung (13.3.4) ───────────────────────
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[ObservableProperty] private bool _isDbEncrypted;
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[ObservableProperty] private string _currentDbPassword = "";
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[ObservableProperty] private string _newDbPassword = "";
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[ObservableProperty] private string _newDbPasswordConfirm = "";
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[ObservableProperty] private string _dbPasswordError = "";
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public string DbEncryptionStatusLabel => IsDbEncrypted ? "verschlüsselt" : "nicht verschlüsselt";
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partial void OnIsDbEncryptedChanged(bool value) => OnPropertyChanged(nameof(DbEncryptionStatusLabel));
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// ── Datenbank-Verschlüsselung: Setzen / Ändern / Entfernen ───────────────
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[RelayCommand]
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private void SaveDbPassword()
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{
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DbPasswordError = "";
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var valid = true;
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var wantsPassword = !string.IsNullOrWhiteSpace(NewDbPassword) || !string.IsNullOrWhiteSpace(NewDbPasswordConfirm);
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if (IsDbEncrypted && !_dbEncryption.VerifyPassword(AppBootstrapper.DbPath, CurrentDbPassword))
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{
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DbPasswordError = "Aktuelles Passwort ist falsch.";
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valid = false;
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}
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if (!wantsPassword)
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{
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DbPasswordError = "Bitte ein neues Passwort eingeben.";
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valid = false;
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}
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else if (NewDbPassword != NewDbPasswordConfirm)
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{
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DbPasswordError = "Neue Passwörter stimmen nicht überein.";
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valid = false;
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}
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else if (NewDbPassword.Length < 4)
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{
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DbPasswordError = "Mindestens 4 Zeichen.";
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valid = false;
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}
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if (!valid) return;
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_dbContext.Dispose();
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_dbEncryption.SetPassword(AppBootstrapper.DbPath, IsDbEncrypted ? CurrentDbPassword : null, NewDbPassword.Trim());
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AppBootstrapper.RestartApplication();
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}
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[RelayCommand]
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private void RemoveDbPassword()
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{
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DbPasswordError = "";
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if (!_dbEncryption.VerifyPassword(AppBootstrapper.DbPath, CurrentDbPassword))
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{
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DbPasswordError = "Aktuelles Passwort ist falsch.";
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return;
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}
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_dbContext.Dispose();
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_dbEncryption.SetPassword(AppBootstrapper.DbPath, CurrentDbPassword, null);
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AppBootstrapper.RestartApplication();
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}
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}
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