[CHANGE] DI fixes

Manager.App/DependencyInjection.cs

@@ -25,9 +25,11 @@ public static class DependencyInjection
             options.UseSqlite($"Data Source={dbPath}");
         });
 
-        builder.Services.AddScoped<ILibraryService, LibraryService>();
-
+        
+        builder.Services.AddSingleton<HostedServiceConnector>();
         builder.Services.AddHostedService<ClientManager>();
+        
+        builder.Services.AddScoped<ILibraryService, LibraryService>();
     }
 
     public static void SetupSettings(this WebApplicationBuilder builder)

Manager.App/Services/System/ClientManager.cs

@@ -6,15 +6,19 @@ using Manager.YouTube;
 
 namespace Manager.App.Services.System;
 
-public class ClientManager : BackgroundService
+public class ClientManager(IServiceScopeFactory scopeFactory, HostedServiceConnector serviceConnector) : BackgroundService
 {
     private readonly List<YouTubeClient> _clients = [];
     private CancellationToken _cancellationToken;
+    private ILibraryService? _libraryService;
     
     protected override async Task ExecuteAsync(CancellationToken stoppingToken)
     {
+        serviceConnector.RegisterService(this);
         _cancellationToken = stoppingToken;
         stoppingToken.Register(CancellationRequested);
+        using var scope = scopeFactory.CreateScope();
+        _libraryService = scope.ServiceProvider.GetRequiredService<ILibraryService>();
     }
     
     private void CancellationRequested()

Manager.App/Services/System/HostedServiceConnector.cs

@@ -0,0 +1,11 @@
+namespace Manager.App.Services.System;
+
+public class HostedServiceConnector
+{
+    private readonly List<IHostedService> _hostedServices = [];
+
+    public void RegisterService(IHostedService service)
+    {
+        _hostedServices.Add(service);
+    }
+}