update AI initializing

rework AIAvailabilityStatus events to mediatr

Azaion.Common/Services/Inference/InferenceServiceEventHandler.cs

@@ -0,0 +1,43 @@
+using Azaion.Common.Database;
+using Azaion.Common.DTO;
+using Azaion.Common.Events;
+using MediatR;
+using MessagePack;
+using Microsoft.Extensions.Logging;
+
+namespace Azaion.Common.Services.Inference;
+
+public class InferenceServiceEventHandler(IInferenceService inferenceService,
+    IAnnotationService annotationService,
+    IMediator mediator,
+    ILogger<InferenceServiceEventHandler> logger) :
+        INotificationHandler<InferenceDataEvent>,
+        INotificationHandler<AIAvailabilityStatusEvent>
+{
+    public async Task Handle(InferenceDataEvent e, CancellationToken ct)
+    {
+        try
+        {
+            if (e.Command.Message == "DONE")
+            {
+                await inferenceService.InferenceCancelTokenSource.CancelAsync();
+                return;
+            }
+
+            var annImage = MessagePackSerializer.Deserialize<AnnotationImage>(e.Command.Data, cancellationToken: ct);
+            var annotation = await annotationService.SaveAnnotation(annImage, ct);
+            await mediator.Publish(new AnnotationAddedEvent(annotation), ct);
+        }
+        catch (Exception ex)
+        {
+            logger.LogError(ex, ex.Message);
+        }
+    }
+
+    public async Task Handle(AIAvailabilityStatusEvent e, CancellationToken ct)
+    {
+
+        e.Status = AIAvailabilityEnum.Enabled;
+
+    }
+}