add NotificationService, cleanup

MareSynchronos/Mediator/MediatorSubscriberBase.cs

@@ -0,0 +1,16 @@
+namespace MareSynchronos.Mediator;
+
+public abstract class MediatorSubscriberBase : IDisposable
+{
+    protected MediatorSubscriberBase(MareMediator mediator)
+    {
+        Mediator = mediator;
+    }
+
+    protected readonly MareMediator Mediator;
+
+    public virtual void Dispose()
+    {
+        Mediator.UnsubscribeAll(this);
+    }
+}

MareSynchronos/Mediator/Messages.cs

@@ -1,8 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+using Dalamud.Interface.Internal.Notifications;
 
 namespace MareSynchronos.Mediator;
 
@@ -37,4 +33,6 @@ public record PlayerRelatedObjectPointerUpdateMessage(IntPtr[] RelatedObjects) :
 public record HaltScanMessage(string Source) : IMessage;
 public record ResumeScanMessage(string Source) : IMessage;
 
+public record NotificationMessage
+    (string Title, string Message, NotificationType Type, uint TimeShownOnScreen = 3000) : IMessage;
 #pragma warning restore MA0048 // File name must match type name