Allow the Mediator to be subscribed to and therefore handled

Bitvault/ArchiveItemHandler.cs

@@ -0,0 +1,34 @@
+using Bitvault.Data;
+using Microsoft.EntityFrameworkCore;
+using Toolkit.Foundation;
+
+namespace Bitvault;
+
+public class ArchiveItemHandler(IValueStore<Item> valueStore,
+    IDbContextFactory<ContainerDbContext> dbContextFactory) :
+    INotificationHandler<ArchiveEventArgs<Item>>
+{
+    public async Task Handle(ArchiveEventArgs<Item> args)
+    {
+        try
+        {
+            if (valueStore.Value is Item item)
+            {
+                await Task.Run(async () =>
+                {
+                    using ContainerDbContext context = await dbContextFactory.CreateDbContextAsync();
+
+                    if (await context.FindAsync<ItemEntry>(item.Id) is ItemEntry result)
+                    {
+                        result.State = 3;
+                        await context.SaveChangesAsync();
+                    }
+                });
+            }
+        }
+        catch
+        {
+
+        }
+    }
+}