init 1.0.0

2026-06-19 00:42:00 +02:00
commit 5ca960746b
67 changed files with 3261 additions and 0 deletions
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+using LehrerApp.Core.Interfaces;
+using LehrerApp.Core.Services;
+using LehrerApp.Data;
+using LehrerApp.Data.Repositories;
+using LehrerApp.Desktop.ViewModels;
+using LehrerApp.Desktop.ViewModels.Groups;
+using LehrerApp.Desktop.ViewModels.Students;
+using LehrerApp.Sync;
+using LehrerApp.Sync.Crypto;
+using LehrerApp.Sync.Models;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace LehrerApp.Desktop;
+
+/// <summary>
+/// Konfiguriert den DI-Container für den Desktop-Client.
+///
+/// WICHTIG: Alle Repositories sind Singleton – eine LiteDB-Datei pro Nutzer.
+/// Sync-Services werden nur registriert wenn eine Server-URL konfiguriert ist.
+/// </summary>
+public static class AppBootstrapper
+{
+    public static string DbPath      { get; private set; } = "";
+    public static string AppDataPath { get; private set; } = "";
+
+    public static IServiceProvider BuildServices()
+    {
+        var services = new ServiceCollection();
+
+        // ── Pfade ─────────────────────────────────────────────────────────────
+        var appData = Path.Combine(
+            Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData),
+            "LehrerApp");
+        Directory.CreateDirectory(appData);
+        AppDataPath   = appData;
+        DbPath        = Path.Combine(appData, "lehrerapp.db");
+        var queuePath = Path.Combine(appData, "syncqueue.db");
+        var keyPath   = Path.Combine(appData, "sync.key");
+
+        // ── Datenbank ─────────────────────────────────────────────────────────
+        services.AddSingleton(_ => new LiteDbContext(DbPath));
+
+        // ── Repositories ──────────────────────────────────────────────────────
+        services.AddSingleton<IStudentRepository,       StudentRepository>();
+        services.AddSingleton<IGroupRepository,         GroupRepository>();
+        services.AddSingleton<IEnrollmentRepository,    EnrollmentRepository>();
+        services.AddSingleton<IExamRepository,          ExamRepository>();
+        services.AddSingleton<IExamResultRepository,    ExamResultRepository>();
+        services.AddSingleton<IGradeRepository,         GradeRepository>();
+        services.AddSingleton<IUnitRepository,          UnitRepository>();
+        services.AddSingleton<ILessonRepository,        LessonRepository>();
+        services.AddSingleton<IDocumentationRepository, DocumentationRepository>();
+        services.AddSingleton<IWorkTaskRepository,      WorkTaskRepository>();
+        services.AddSingleton<ITimeEntryRepository,     TimeEntryRepository>();
+
+        // ── Services ──────────────────────────────────────────────────────────
+        services.AddSingleton<GradingService>();
+        services.AddSingleton<SchoolYearService>();
+
+        // ── Sync (optional – nur wenn Server konfiguriert) ────────────────────
+        services.AddSingleton(_ => new EventQueue(queuePath));
+        services.AddSingleton(sp => new ConflictResolver(sp.GetRequiredService<EventQueue>()));
+        services.AddSingleton<byte[]>(_ =>
+        {
+            var key = SyncCrypto.LoadKey(keyPath) ?? SyncCrypto.GenerateKey();
+            SyncCrypto.SaveKey(key, keyPath);
+            return key;
+        });
+
+        var serverUrl = LoadServerUrl(appData);
+        var deviceId  = LoadOrCreateDeviceId(appData);
+
+        if (!string.IsNullOrEmpty(serverUrl))
+        {
+            services.AddSingleton<SyncEngine>(sp => new SyncEngine(
+                sp.GetRequiredService<EventQueue>(),
+                sp.GetRequiredService<ConflictResolver>(),
+                BuildHttp(serverUrl, appData),
+                new SyncConfig
+                {
+                    ServerUrl               = serverUrl,
+                    DeviceId                = deviceId,
+                    DeviceType              = DeviceType.Desktop,
+                    AutoSyncIntervalMinutes = 5,
+                }));
+
+            services.AddSingleton<SnapshotService>(sp => new SnapshotService(
+                BuildHttp(serverUrl, appData),
+                sp.GetRequiredService<LiteDbContext>(),
+                sp.GetRequiredService<byte[]>(),
+                DeviceType.Desktop, DbPath, keyPath));
+        }
+
+        // ── ViewModels ────────────────────────────────────────────────────────
+        // Singleton: einmal erstellt, überall dieselbe Instanz
+        services.AddSingleton<MainWindowViewModel>();
+        services.AddSingleton<DashboardViewModel>();
+        services.AddSingleton<SyncStatusViewModel>();
+        services.AddSingleton<GroupListViewModel>();
+        services.AddSingleton<StudentListViewModel>();
+
+        // Transient: neue Instanz pro Navigation (für Detailseiten)
+        services.AddTransient<GroupDetailViewModel>();
+        services.AddTransient<StudentDetailViewModel>();
+
+        return services.BuildServiceProvider();
+    }
+
+    // ── Hilfsmethoden ─────────────────────────────────────────────────────────
+
+    private static HttpClient BuildHttp(string url, string appData)
+    {
+        var http = new HttpClient { BaseAddress = new Uri(url) };
+        var tokenPath = Path.Combine(appData, "auth.token");
+        if (File.Exists(tokenPath))
+            http.DefaultRequestHeaders.Authorization =
+                new System.Net.Http.Headers.AuthenticationHeaderValue(
+                    "Bearer", File.ReadAllText(tokenPath).Trim());
+        return http;
+    }
+
+    public static string LoadServerUrl(string? path = null) =>
+        File.Exists(Path.Combine(path ?? AppDataPath, "server.txt"))
+            ? File.ReadAllText(Path.Combine(path ?? AppDataPath, "server.txt")).Trim()
+            : "";
+
+    public static void SaveServerUrl(string url) =>
+        File.WriteAllText(Path.Combine(AppDataPath, "server.txt"), url);
+
+    private static string LoadOrCreateDeviceId(string appData)
+    {
+        var p = Path.Combine(appData, "device.id");
+        if (File.Exists(p)) return File.ReadAllText(p).Trim();
+        var id = Guid.NewGuid().ToString();
+        File.WriteAllText(p, id);
+        return id;
+    }
+}