WIP

Hyperbar.Widget/WidgetBuilder.cs

@@ -25,13 +25,18 @@ public class WidgetBuilder :
             })
             .ConfigureServices((context, services) =>
             {
-                services.AddHostedService<WidgetService>();
+                services.AddSingleton<IWidgetHost, WidgetHost>();
                 services.AddScoped<IServiceFactory>(provider =>
                     new ServiceFactory((type, parameters) =>
                         ActivatorUtilities.CreateInstance(provider, type, parameters!)));
                 services.AddScoped<IMediator, Mediator>();
                 services.AddScoped<IDisposer, Disposer>();
-                services.AddSingleton<IValue<WidgetAvailability>, Value<WidgetAvailability>>();
+                services.AddHandler<WidgetAvailabilityChangedHandler>();
+                services.AddValueChangedNotification<WidgetConfiguration,
+                    WidgetAvailability>((config) => (args) =>
+                    {
+                        args.Value = config.IsEnabled;
+                    });
             });
     }
 
@@ -40,9 +45,7 @@ public class WidgetBuilder :
     public IWidgetHost Build()
     {
         IHost host = hostBuilder.Build();
-
-        return (IWidgetHost)ActivatorUtilities.CreateInstance(host.Services,
-            typeof(WidgetHost), host);
+        return host.Services.GetRequiredService<IWidgetHost>();
     }
 
     public IWidgetBuilder UseConfiguration<TConfiguration>(Action<TConfiguration> configurationDelegate)
@@ -56,7 +59,6 @@ public class WidgetBuilder :
         }
 
         configurationRegistered = true;
-
         TConfiguration configuration = new();
         configurationDelegate(configuration);
 
@@ -88,7 +90,6 @@ public class WidgetBuilder :
         }
 
         viewModelTemplateRegistered = true;
-
         hostBuilder.ConfigureServices(services =>
         {
             services.AddWidgetTemplate<TViewModel>();
@@ -107,7 +108,6 @@ public class WidgetBuilder :
         }
 
         viewModelTemplateRegistered = true;
-
         hostBuilder.ConfigureServices(services =>
         {
             services.AddWidgetTemplate<TWidgetContent, TWidgetTemplate>();