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181
LehrerApp.Desktop/AppBootstrapper.cs
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181
LehrerApp.Desktop/AppBootstrapper.cs
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using LehrerApp.Core.Interfaces;
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using LehrerApp.Core.Services;
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using LehrerApp.Data;
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using LehrerApp.Data.Repositories;
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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.Students;
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using LehrerApp.Sync;
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using LehrerApp.Sync.Crypto;
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using LehrerApp.Sync.Models;
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using Microsoft.Extensions.DependencyInjection;
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namespace LehrerApp.Desktop;
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public static class AppBootstrapper
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{
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public static IServiceProvider BuildServices()
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{
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var services = new ServiceCollection();
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// ── Pfade ─────────────────────────────────────────────────────────────
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var appData = Path.Combine(
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Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData),
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"LehrerApp");
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Directory.CreateDirectory(appData);
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var dbPath = Path.Combine(appData, "lehrerapp.db");
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var queuePath = Path.Combine(appData, "syncqueue.db");
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var keyPath = Path.Combine(appData, "sync.key");
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// ── Datenbank ─────────────────────────────────────────────────────────
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services.AddSingleton(_ => new LiteDbContext(dbPath));
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// ── Repositories ──────────────────────────────────────────────────────
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services.AddSingleton<IStudentRepository, StudentRepository>();
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services.AddSingleton<IGroupRepository, GroupRepository>();
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services.AddSingleton<IEnrollmentRepository, EnrollmentRepository>();
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services.AddSingleton<IExamRepository, ExamRepository>();
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services.AddSingleton<IExamResultRepository, ExamResultRepository>();
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services.AddSingleton<IGradeRepository, GradeRepository>();
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services.AddSingleton<IUnitRepository, UnitRepository>();
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services.AddSingleton<ILessonRepository, LessonRepository>();
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services.AddSingleton<IDocumentationRepository, DocumentationRepository>();
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services.AddSingleton<IWorkTaskRepository, WorkTaskRepository>();
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services.AddSingleton<ITimeEntryRepository, TimeEntryRepository>();
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// ── Core Services ─────────────────────────────────────────────────────
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services.AddSingleton<GradingService>();
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services.AddSingleton<SchoolYearService>();
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// ── Sync ──────────────────────────────────────────────────────────────
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services.AddSingleton(_ => new EventQueue(queuePath));
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services.AddSingleton(sp =>
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new ConflictResolver(sp.GetRequiredService<EventQueue>()));
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// Schlüssel laden oder neu generieren
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services.AddSingleton<byte[]>(_ =>
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{
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var key = SyncCrypto.LoadKey(keyPath) ?? SyncCrypto.GenerateKey();
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SyncCrypto.SaveKey(key, keyPath);
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return key;
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});
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// EventApplier – wendet gezogene Events auf LiteDB an
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services.AddSingleton<EventApplier>(sp => new EventApplier(
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key: sp.GetRequiredService<byte[]>(),
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students: sp.GetRequiredService<IStudentRepository>(),
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groups: sp.GetRequiredService<IGroupRepository>(),
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enrollments: sp.GetRequiredService<IEnrollmentRepository>(),
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exams: sp.GetRequiredService<IExamRepository>(),
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examResults: sp.GetRequiredService<IExamResultRepository>(),
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grades: sp.GetRequiredService<IGradeRepository>(),
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units: sp.GetRequiredService<IUnitRepository>(),
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lessons: sp.GetRequiredService<ILessonRepository>(),
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docs: sp.GetRequiredService<IDocumentationRepository>(),
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tasks: sp.GetRequiredService<IWorkTaskRepository>(),
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timeEntries: sp.GetRequiredService<ITimeEntryRepository>()));
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// SyncEngine + ReadableSnapshotService nur wenn Server konfiguriert
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var serverUrl = LoadServerUrl(appData);
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var deviceId = LoadOrCreateDeviceId(appData);
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services.AddSingleton<SyncEngine?>(sp =>
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{
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if (string.IsNullOrEmpty(serverUrl)) return null;
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var http = BuildHttpClient(serverUrl, appData);
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var config = new SyncConfig
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{
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ServerUrl = serverUrl,
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DeviceId = deviceId,
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DeviceType = DeviceType.Desktop,
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AutoSyncIntervalMinutes = 5,
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};
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return new SyncEngine(
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sp.GetRequiredService<EventQueue>(),
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sp.GetRequiredService<ConflictResolver>(),
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http,
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config);
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});
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services.AddSingleton<ReadableSnapshotService?>(sp =>
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{
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if (string.IsNullOrEmpty(serverUrl)) return null;
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return new ReadableSnapshotService(
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http: BuildHttpClient(serverUrl, appData),
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students: sp.GetRequiredService<IStudentRepository>(),
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groups: sp.GetRequiredService<IGroupRepository>(),
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enrollments: sp.GetRequiredService<IEnrollmentRepository>(),
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exams: sp.GetRequiredService<IExamRepository>(),
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examResults: sp.GetRequiredService<IExamResultRepository>(),
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grades: sp.GetRequiredService<IGradeRepository>(),
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units: sp.GetRequiredService<IUnitRepository>(),
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lessons: sp.GetRequiredService<ILessonRepository>(),
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tasks: sp.GetRequiredService<IWorkTaskRepository>(),
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schoolYear: sp.GetRequiredService<SchoolYearService>(),
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deviceId: deviceId);
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});
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services.AddSingleton<SnapshotService?>(sp =>
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{
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if (string.IsNullOrEmpty(serverUrl)) return null;
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return new SnapshotService(
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http: BuildHttpClient(serverUrl, appData),
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db: sp.GetRequiredService<LiteDbContext>(),
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syncKey: sp.GetRequiredService<byte[]>(),
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deviceType: DeviceType.Desktop,
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dbPath: dbPath,
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keyPath: keyPath);
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});
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// ── ViewModels ────────────────────────────────────────────────────────
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services.AddSingleton<MainWindowViewModel>();
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services.AddSingleton<DashboardViewModel>();
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services.AddTransient<GroupListViewModel>();
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services.AddTransient<GroupDetailViewModel>();
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services.AddTransient<StudentListViewModel>();
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services.AddTransient<StudentDetailViewModel>();
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services.AddSingleton<SyncStatusViewModel>();
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services.AddTransient<DevicePairingViewModel>(sp =>
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new DevicePairingViewModel(
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sp.GetRequiredService<SnapshotService?>()
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?? throw new InvalidOperationException(
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"Kein Server konfiguriert.")));
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return services.BuildServiceProvider();
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}
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// ── Hilfsmethoden ─────────────────────────────────────────────────────────
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private static HttpClient BuildHttpClient(string serverUrl, string appData)
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{
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var http = new HttpClient { BaseAddress = new Uri(serverUrl) };
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var tokenPath = Path.Combine(appData, "auth.token");
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if (File.Exists(tokenPath))
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{
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var token = File.ReadAllText(tokenPath).Trim();
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http.DefaultRequestHeaders.Authorization =
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new System.Net.Http.Headers.AuthenticationHeaderValue(
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"Bearer", token);
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}
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return http;
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}
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private static string LoadServerUrl(string appData)
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{
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var path = Path.Combine(appData, "server.txt");
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return File.Exists(path) ? File.ReadAllText(path).Trim() : "";
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}
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private static string LoadOrCreateDeviceId(string appData)
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{
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var path = Path.Combine(appData, "device.id");
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if (File.Exists(path)) return File.ReadAllText(path).Trim();
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var id = Guid.NewGuid().ToString();
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File.WriteAllText(path, id);
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return id;
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}
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}
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