Revert "MM-42810: Introduce a channel hook for a websocket event (#23812)" (#24107)

Automatic Merge

server/channels/app/notification.go

@@ -484,6 +484,12 @@ func (a *App) SendNotifications(c request.CTX, post *model.Post, team *model.Tea
 	message := model.NewWebSocketEvent(model.WebsocketEventPosted, "", post.ChannelId, "", nil, "")
 
 	// Note that PreparePostForClient should've already been called by this point
+	postJSON, jsonErr := post.ToJSON()
+	if jsonErr != nil {
+		return nil, errors.Wrapf(jsonErr, "failed to encode post to JSON")
+	}
+	message.Add("post", postJSON)
+
 	message.Add("channel_type", channel.Type)
 	message.Add("channel_display_name", notification.GetChannelName(model.ShowUsername, ""))
 	message.Add("channel_name", channel.Name)
@@ -517,10 +523,13 @@ func (a *App) SendNotifications(c request.CTX, post *model.Post, team *model.Tea
 		message.Add("followers", model.ArrayToJSON(notificationsForCRT.Desktop))
 	}
 
-	err := a.publishWebsocketEventForPost(c, post, message)
+	published, err := a.publishWebsocketEventForPermalinkPost(c, post, message)
 	if err != nil {
 		return nil, err
 	}
+	if !published {
+		a.Publish(message)
+	}
 
 	// If this is a reply in a thread, notify participants
 	if isCRTAllowed && post.RootId != "" {