276 lines
13 KiB
C#
276 lines
13 KiB
C#
using Avalonia;
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using Avalonia.Controls;
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using Avalonia.Controls.ApplicationLifetimes;
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using Avalonia.Markup.Xaml;
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using Avalonia.Styling;
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using Avalonia.Threading;
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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;
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using LehrerApp.Desktop.ViewModels.Groups;
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using LehrerApp.Desktop.ViewModels.Planning;
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using LehrerApp.Desktop.ViewModels.Students;
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using LehrerApp.Desktop.ViewModels.Workload;
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using LehrerApp.Desktop.Views;
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using LehrerApp.Desktop.Views.Workload;
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using LehrerApp.Sync;
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using Microsoft.Extensions.DependencyInjection;
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namespace LehrerApp.Desktop;
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public class App : Application
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{
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public static IServiceProvider Services { get; private set; } = null!;
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private static ServiceProvider? _serviceProvider;
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private static bool _exitHandlerAttached;
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public override void Initialize() => AvaloniaXamlLoader.Load(this);
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public override void OnFrameworkInitializationCompleted()
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{
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// Vor jedem Fenster (auch dem DB-Passwort-Prompt) anwenden, damit kein kurzes Aufblitzen
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// der Systemvorgabe zu sehen ist, falls Hell/Dunkel manuell erzwungen wurde. Eigenständige
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// Instanz statt über den DI-Container (der erst in BuildServices() entsteht, die den
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// Passwort-Prompt bereits verzögert) - dieselbe appData-Datei wie später der
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// DI-Singleton, rein lesend also unproblematisch doppelt konstruiert.
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ApplyTheme(new AppearanceSettingsService(AppBootstrapper.ResolveAppDataPath()).Load());
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if (ApplicationLifetime is IClassicDesktopStyleApplicationLifetime desktop)
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{
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// Erst den Splashscreen anzeigen und die synchrone Initialisierung in den ersten
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// Dispatcher-Durchlauf verschieben, damit das Ladebild vorher gezeichnet wird.
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var splash = new SplashWindow();
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desktop.MainWindow = splash;
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Dispatcher.UIThread.Post(
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() => ContinueStartup(desktop, splash),
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DispatcherPriority.Background);
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}
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base.OnFrameworkInitializationCompleted();
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}
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private static async void ContinueStartup(
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IClassicDesktopStyleApplicationLifetime desktop, SplashWindow splash)
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{
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// Verschlüsselte Datenbank (13.3.4): Passwort abfragen, bevor die Datenbank
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// (und damit BuildServices, das sie öffnet) angefasst wird.
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if (AppBootstrapper.IsDbEncrypted())
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{
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var promptVm = new DbPasswordPromptViewModel(
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new DatabaseEncryptionService(), AppBootstrapper.ResolveDbPath());
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var promptWindow = new DbPasswordPromptWindow { DataContext = promptVm };
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promptVm.OnUnlocked = async password =>
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{
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AppBootstrapper.DbPassword = password;
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await StartMainAppAsync(desktop, promptWindow);
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};
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desktop.MainWindow = promptWindow;
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promptWindow.Show();
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splash.Close();
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return;
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}
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await StartMainAppAsync(desktop, splash);
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}
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private static async Task StartMainAppAsync(
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IClassicDesktopStyleApplicationLifetime desktop, Window? windowToClose = null)
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{
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_serviceProvider = AppBootstrapper.BuildServices();
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Services = _serviceProvider;
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Services.GetRequiredService<AppLogger>().Info("Anwendung gestartet.");
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GlobalExceptionHandler.AttachNotifications(Services.GetRequiredService<NotificationService>());
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// Papierkorb (14.3): Einträge älter als 30 Tage endgültig entfernen. Beim Start statt per
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// Timer - reicht für ein Werkzeug, das ohnehin nur "Fehlklick eben rückgängig machen" sein
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// soll, kein dauerhaftes Archiv.
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Services.GetRequiredService<ITrashRepository>().PurgeOlderThan(DateTime.UtcNow.AddDays(-30));
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if (!_exitHandlerAttached)
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{
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desktop.Exit += (_, _) => DisposeServices();
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_exitHandlerAttached = true;
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}
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var mainVm = Services.GetRequiredService<MainWindowViewModel>();
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WireCallbacks(mainVm);
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// Beide optionalen Erstabgleiche noch unter dem Splashscreen abschließen. Ihre
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// CPU-/Datenbankarbeit läuft innerhalb der Dienste im Threadpool; dadurch öffnet das
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// Hauptfenster mit fertigem Datenstand und friert nicht kurz danach ein. Das Auflösen
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// aktiviert zugleich die periodischen Timer.
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var initialPolls = new List<Task>();
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if (Services.GetService<UntisSyncService>() is { } untisSync)
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initialPolls.Add(untisSync.PollAsync());
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if (Services.GetService<AnnualPlanSyncService>() is { } annualPlanSync)
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initialPolls.Add(annualPlanSync.PollAsync());
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await Task.WhenAll(initialPolls);
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var main = new MainWindow { DataContext = mainVm };
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main.EnableWindowSizePersistence(Services.GetRequiredService<WindowSettingsService>());
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if (Services.GetService<SyncEngine>() is { } syncEngine)
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main.EnableFinalSync(syncEngine);
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desktop.MainWindow = main;
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main.Show();
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windowToClose?.Close();
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}
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/// <summary>Wechselt die Darstellung sofort, ohne Neustart (12.4) — Avalonia stylt den
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/// gesamten sichtbaren Baum automatisch neu, sobald sich <see cref="ThemeVariant"/>
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/// ändert.</summary>
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public static void ApplyTheme(AppTheme theme) =>
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Current!.RequestedThemeVariant = theme switch
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{
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AppTheme.Light => ThemeVariant.Light,
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AppTheme.Dark => ThemeVariant.Dark,
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_ => ThemeVariant.Default,
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};
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private static void DisposeServices()
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{
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var serviceProvider = Interlocked.Exchange(ref _serviceProvider, null);
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if (serviceProvider is null) return;
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try
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{
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serviceProvider.GetService<LiteDbContext>()?.Checkpoint();
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}
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catch (Exception ex)
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{
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AppBootstrapper.Logger.Error("Datenbank-Checkpoint beim Beenden fehlgeschlagen.", ex);
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}
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finally
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{
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// Der Exit-Handler läuft synchron auf dem Avalonia-UI-Thread. Die asynchrone
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// Entsorgung darf dort nicht mit GetResult() gestartet werden: Fortsetzungen aus
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// WebUntis/HttpClient könnten sonst auf den blockierten UI-Kontext zurückwarten.
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try
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{
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Task.Run(async () =>
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await serviceProvider.DisposeAsync().ConfigureAwait(false))
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.GetAwaiter().GetResult();
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}
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catch (Exception ex)
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{
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AppBootstrapper.Logger.Error("Dienste konnten beim Beenden nicht vollständig freigegeben werden.", ex);
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}
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}
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}
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private static void WireCallbacks(MainWindowViewModel main)
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{
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// GroupList → GroupDetail (OnAddGroup wird in GroupListView.axaml.cs verdrahtet)
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var gl = Services.GetRequiredService<GroupListViewModel>();
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gl.OnNavigateToDetail = (id, tab) => main.NavigateToGroupDetail(id, tab);
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// Dashboard → GroupDetail (Chips) / StudentDetail (Fehlzeiten-/Förderplan-Hinweise)
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var dash = Services.GetRequiredService<DashboardViewModel>();
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dash.OnNavigateToGroup = id => main.NavigateToGroupDetail(id);
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dash.OnNavigateToStudent = id => main.NavigateToStudent(id);
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dash.OnNavigateToLesson = id => main.NavigateToGroupDetail(id, 3); // Tab "Mitarbeit"
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dash.OnNavigateToExam = id => main.NavigateToGroupDetail(id, 4); // Tab "Klausuren"
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dash.OnNavigateToUnplannedLesson = id => main.NavigateToGroupDetail(id, 6); // Tab "Planung"
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dash.OnAddMissingTeachingTime = item => ShowMissingTeachingTimeDialog(item, dash);
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var examsOverview = Services.GetRequiredService<ViewModels.Exams.ExamsOverviewViewModel>();
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examsOverview.OnNavigateToGroups = () => main.NavigateToCommand.Execute(NavItem.Groups);
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// Globale Suche/Schnellerfassung (14.2): Navigation bleibt im MainWindow-VM, die
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// vorhandenen Dialog-Helfer übernehmen Eingabe und Validierung.
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var search = Services.GetRequiredService<GlobalSearchViewModel>();
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search.OnNavigate = result =>
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{
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if (result.Kind == GlobalSearchResultKind.Student && result.EntityId is { } studentId)
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main.NavigateToStudent(studentId);
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else if (result.Kind == GlobalSearchResultKind.Group && result.GroupId is { } groupId)
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main.NavigateToGroupDetail(groupId);
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else if (result.Kind == GlobalSearchResultKind.Exam && result.GroupId is { } examGroupId)
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main.NavigateToGroupDetail(examGroupId, 4);
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else if (result.Kind == GlobalSearchResultKind.Task)
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main.NavigateToWorkload();
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};
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search.OnQuickAddTask = startAsReminder => ShowQuickTaskDialog(startAsReminder, dash);
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search.OnQuickAddStudent = ShowAddStudentDialog;
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search.OnQuickAddGroupDocumentation = () => ShowQuickGroupDocumentationDialog(dash);
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// StudentList → StudentDetail + Anlegen
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var sl = Services.GetRequiredService<StudentListViewModel>();
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sl.OnNavigateToDetail = id => main.NavigateToStudent(id);
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sl.OnAddStudent = () => ShowAddStudentDialog();
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// Stundenplan "Heute" → GroupDetail (Tab "Planung") / Einstellungen (Zahnrad, Tab "Ferien & Feiertage")
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var timetable = Services.GetRequiredService<TimetableViewModel>();
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timetable.OnNavigateToSettings = tab => main.NavigateToSettings(tab);
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timetable.OnNavigateToGroup = id => main.NavigateToGroupDetail(id, 6);
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}
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private static async Task ShowAddStudentDialog()
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{
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var vm = new ViewModels.Students.AddStudentDialogViewModel(
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Services.GetRequiredService<Core.Interfaces.IStudentRepository>());
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var dialog = new Views.Students.AddStudentDialog { DataContext = vm };
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if (Application.Current?.ApplicationLifetime is IClassicDesktopStyleApplicationLifetime { MainWindow: { } owner })
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await dialog.ShowDialog<bool>(owner);
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}
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private static async Task ShowQuickTaskDialog(bool startAsReminder, DashboardViewModel dashboard)
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{
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if (Application.Current?.ApplicationLifetime is not IClassicDesktopStyleApplicationLifetime
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{ MainWindow: { } owner }) return;
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var result = await WorkTaskDialogHelper.ShowDialog(owner, startAsReminder: startAsReminder);
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if (result is null) return;
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Services.GetRequiredService<IWorkTaskRepository>().Save(result);
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dashboard.RefreshCommand.Execute(null);
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Services.GetRequiredService<WorkTaskListViewModel>().Load();
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}
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private static async Task ShowMissingTeachingTimeDialog(MissingTeachingTimeItem item, DashboardViewModel dashboard)
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{
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if (Application.Current?.ApplicationLifetime is not IClassicDesktopStyleApplicationLifetime
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{ MainWindow: { } owner }) return;
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var tasks = Services.GetRequiredService<IWorkTaskRepository>()
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.GetAll().Where(t => t.Status != WorkTaskStatus.Done).ToList();
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var vm = new AddTimeEntryDialogViewModel(tasks)
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{
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DateText = item.Date.ToString("dd.MM.yyyy"),
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SelectedCategory = "Unterricht",
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StartTimeText = item.WindowStart.ToString("HH:mm"),
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EndTimeText = item.WindowEnd.ToString("HH:mm"),
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};
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var dialog = new AddTimeEntryDialog { DataContext = vm };
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await dialog.ShowDialog<bool>(owner);
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if (vm.Result is null) return;
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Services.GetRequiredService<ITimeEntryRepository>().Save(vm.Result);
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dashboard.RefreshCommand.Execute(null);
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Services.GetRequiredService<TimeTrackingViewModel>().Load();
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}
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private static async Task ShowQuickGroupDocumentationDialog(DashboardViewModel dashboard)
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{
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if (Application.Current?.ApplicationLifetime is not IClassicDesktopStyleApplicationLifetime
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{ MainWindow: { } owner }) return;
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var subjects = Services.GetRequiredService<ISubjectRepository>().GetAll()
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.ToDictionary(s => s.Id);
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var options = Services.GetRequiredService<IGroupRepository>().GetAll()
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.Where(g => g.IsActive)
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.OrderBy(g => g.Name)
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.Select(g => new GroupDocumentationOption(g.Id,
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g.SubjectId is { } subjectId && subjects.TryGetValue(subjectId, out var subject)
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? $"{g.Name} · {(string.IsNullOrWhiteSpace(subject.ShortName) ? subject.Name : subject.ShortName)}"
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: g.Name));
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var vm = new GroupDocumentationQuickViewModel(options);
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var dialog = new Views.Students.GroupDocumentationQuickDialog { DataContext = vm };
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if (!await dialog.ShowDialog<bool>(owner) || vm.Result is null) return;
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Services.GetRequiredService<IDocumentationRepository>().Save(vm.Result);
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dashboard.RefreshCommand.Execute(null);
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}
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}
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