add message delete event

src/Infrastructure/BotSharp.Abstraction/Conversations/ConversationHookBase.cs

@@ -67,4 +67,7 @@ public abstract class ConversationHookBase : IConversationHook
 
     public virtual Task OnUserAgentConnectedInitially(Conversation conversation)
         => Task.CompletedTask;
+
+    public virtual Task OnMessageDeleted(string conversationId, string messageId)
+        => Task.CompletedTask;
 }

src/Infrastructure/BotSharp.Abstraction/Conversations/IConversationHook.cs

@@ -84,4 +84,12 @@ public interface IConversationHook
     /// <param name="conversation"></param>
     /// <returns></returns>
     Task OnHumanInterventionNeeded(RoleDialogModel message);
+
+    /// <summary>
+    /// Delete message in a conversation
+    /// </summary>
+    /// <param name="conversationId"></param>
+    /// <param name="messageId"></param>
+    /// <returns></returns>
+    Task OnMessageDeleted(string conversationId, string messageId);
 }

src/Infrastructure/BotSharp.Core/Conversations/Services/ConversationService.TruncateMessage.cs

@@ -8,6 +8,11 @@ public partial class ConversationService : IConversationService
     {
         var db = _services.GetRequiredService<IBotSharpRepository>();
         var isSaved = db.TruncateConversation(conversationId, messageId, true);
+        var hooks = _services.GetServices<IConversationHook>().ToList();
+        foreach (var hook in hooks)
+        {
+            await hook.OnMessageDeleted(conversationId, messageId);
+        }
         return await Task.FromResult(isSaved);
     }
 }

src/Infrastructure/BotSharp.OpenAPI/BotSharpOpenApiExtensions.cs

@@ -30,7 +30,7 @@ public static class BotSharpOpenApiExtensions
         bool enableValidation)
     {
         services.AddScoped<IUserIdentity, UserIdentity>();
-        services.AddHostedService<ConversationTimeoutService>();
+        //services.AddHostedService<ConversationTimeoutService>();
 
         // Add bearer authentication
         var schema = "MIXED_SCHEME";

src/Plugins/BotSharp.Plugin.ChatHub/Hooks/ChatHubConversationHook.cs

@@ -96,4 +96,14 @@ public class ChatHubConversationHook : ConversationHookBase
 
         await base.OnResponseGenerated(message);
     }
+
+    public override async Task OnMessageDeleted(string conversationId, string messageId)
+    {
+        await _chatHub.Clients.User(_user.Id).SendAsync("OnMessageDeleted", new ChatResponseModel
+        {
+            ConversationId = conversationId,
+            MessageId = messageId
+        });
+        await base.OnMessageDeleted(conversationId, messageId);
+    }
 }