feat: Improve message broadcasting to exclude sender, add error handling for direct delivery, and enhance sendToUser logging.

src/messages/messages.gateway.ts

@@ -175,13 +175,14 @@ export class MessagesGateway implements OnGatewayConnection, OnGatewayDisconnect
         data.message,
       );
 
-      // Broadcast to all clients in the conversation room
-      this.server
+      // Broadcast to other clients in the conversation room (exclude sender)
+      client
         .to(`conversation:${data.conversationId}`)
         .emit('new_message', message);
 
       // Also send directly to the other participant's socket(s)
       // so they receive the message even if they haven't joined this room
+      try {
         const participants = await this.messagesService.getConversationParticipants(data.conversationId);
         if (participants) {
           const otherUserId = client.userId === participants.userId
@@ -189,6 +190,9 @@ export class MessagesGateway implements OnGatewayConnection, OnGatewayDisconnect
             : participants.userId;
           this.sendToUser(otherUserId, 'new_message', message);
         }
+      } catch (participantError) {
+        this.logger.warn(`Failed to get participants for direct delivery in ${data.conversationId}: ${participantError.message}`);
+      }
 
       return { success: true, message };
     } catch (error) {
@@ -381,10 +385,13 @@ export class MessagesGateway implements OnGatewayConnection, OnGatewayDisconnect
    */
   sendToUser(userId: string, event: string, data: any) {
     const sockets = this.userSocketMap.get(userId);
-    if (sockets) {
+    if (sockets && sockets.size > 0) {
       sockets.forEach((socketId) => {
         this.server.to(socketId).emit(event, data);
       });
+      this.logger.debug(`Sent ${event} to user ${userId} via ${sockets.size} socket(s)`);
+    } else {
+      this.logger.debug(`User ${userId} has no active sockets for ${event} - message saved in DB`);
     }
   }