From ab165bd34d51b7a1028b7a7c51f135526077f670 Mon Sep 17 00:00:00 2001
From: levlam <levlam@telegram.org>
Date: Tue, 15 Nov 2022 17:07:05 +0300
Subject: [PATCH] Add ForumTopicManager::can_be_forum.

---
 td/telegram/ForumTopicManager.cpp | 8 ++++++--
 td/telegram/ForumTopicManager.h   | 2 ++
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/td/telegram/ForumTopicManager.cpp b/td/telegram/ForumTopicManager.cpp
index 0d929c341..4c7923bb3 100644
--- a/td/telegram/ForumTopicManager.cpp
+++ b/td/telegram/ForumTopicManager.cpp
@@ -307,8 +307,7 @@ void ForumTopicManager::on_get_forum_topics(DialogId dialog_id,
   if (forum_topics.empty()) {
     return;
   }
-  if (dialog_id.get_type() != DialogType::Channel ||
-      !td_->contacts_manager_->is_megagroup_channel(dialog_id.get_channel_id())) {
+  if (!can_be_forum(dialog_id)) {
     LOG(ERROR) << "Receive forum topics in " << dialog_id << " from " << source;
     return;
   }
@@ -340,6 +339,11 @@ Status ForumTopicManager::is_forum(DialogId dialog_id) {
   return Status::OK();
 }
 
+bool ForumTopicManager::can_be_forum(DialogId dialog_id) const {
+  return dialog_id.get_type() == DialogType::Channel &&
+         td_->contacts_manager_->is_megagroup_channel(dialog_id.get_channel_id());
+}
+
 ForumTopicManager::DialogTopics *ForumTopicManager::add_dialog_topics(DialogId dialog_id) {
   auto *dialog_topics = dialog_topics_.get_pointer(dialog_id);
   if (dialog_topics == nullptr) {
diff --git a/td/telegram/ForumTopicManager.h b/td/telegram/ForumTopicManager.h
index 3137ac4f6..38f0a4765 100644
--- a/td/telegram/ForumTopicManager.h
+++ b/td/telegram/ForumTopicManager.h
@@ -69,6 +69,8 @@ class ForumTopicManager final : public Actor {
 
   Status is_forum(DialogId dialog_id);
 
+  bool can_be_forum(DialogId dialog_id) const;
+
   DialogTopics *add_dialog_topics(DialogId dialog_id);
 
   static Topic *add_topic(DialogTopics *dialog_topics, MessageId top_thread_message_id);