From 40a79c8367eaa64385b0a9a05d4949edd181bcba Mon Sep 17 00:00:00 2001
From: levlam <levlam@telegram.org>
Date: Fri, 10 Jul 2026 22:51:02 +0300
Subject: Add community cache.

---
 telegram-bot-api/Client.cpp | 24 +++++++++++++++++++++++-
 telegram-bot-api/Client.h   |  8 ++++++++
 2 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/telegram-bot-api/Client.cpp b/telegram-bot-api/Client.cpp
index 173948e..d7ed0d0 100644
--- a/telegram-bot-api/Client.cpp
+++ b/telegram-bot-api/Client.cpp
@@ -54,7 +54,7 @@ Client::Client(td::ActorShared<> parent, const td::string &bot_token, bool is_te
 
 Client::~Client() {
   td::Scheduler::instance()->destroy_on_scheduler(SharedData::get_file_gc_scheduler_id(), messages_, users_, groups_,
-                                                  supergroups_, chats_, sticker_set_names_);
+                                                  supergroups_, chats_, communities_, sticker_set_names_);
 }
 
 int Client::get_retry_after_time(td::Slice error_message) {
@@ -9663,6 +9663,12 @@ void Client::on_update(object_ptr<td_api::Object> result) {
       add_supergroup(supergroup_info, std::move(update->supergroup_));
       break;
     }
+    case td_api::updateCommunity::ID: {
+      auto update = move_object_as<td_api::updateCommunity>(result);
+      auto *community_info = add_community_info(update->community_->id_);
+      add_community(community_info, std::move(update->community_));
+      break;
+    }
     case td_api::updateSupergroupFullInfo::ID: {
       auto update = move_object_as<td_api::updateSupergroupFullInfo>(result);
       auto supergroup_id = update->supergroup_id_;
@@ -17553,6 +17559,22 @@ const Client::ChatInfo *Client::get_chat(int64 chat_id) const {
   return chats_.get_pointer(chat_id);
 }
 
+void Client::add_community(CommunityInfo *community_info, object_ptr<td_api::community> &&community) {
+  community_info->name = std::move(community->name_);
+}
+
+Client::CommunityInfo *Client::add_community_info(int64 community_id) {
+  auto &community_info = communities_[community_id];
+  if (community_info == nullptr) {
+    community_info = td::make_unique<CommunityInfo>();
+  }
+  return community_info.get();
+}
+
+const Client::CommunityInfo *Client::get_community_info(int64 community_id) const {
+  return communities_.get_pointer(community_id);
+}
+
 void Client::set_chat_available_reactions(ChatInfo *chat_info,
                                           object_ptr<td_api::ChatAvailableReactions> &&available_reactions) {
   CHECK(chat_info != nullptr);
diff --git a/telegram-bot-api/Client.h b/telegram-bot-api/Client.h
index 6ce5973..e0b00ad 100644
--- a/telegram-bot-api/Client.h
+++ b/telegram-bot-api/Client.h
@@ -1210,6 +1210,13 @@ class Client final : public WebhookActor::Callback {
   ChatInfo *add_chat(int64 chat_id);
   const ChatInfo *get_chat(int64 chat_id) const;
 
+  struct CommunityInfo {
+    td::string name;
+  };
+  static void add_community(CommunityInfo *community_info, object_ptr<td_api::community> &&community);
+  CommunityInfo *add_community_info(int64 community_id);
+  const CommunityInfo *get_community_info(int64 community_id) const;
+
   void set_chat_available_reactions(ChatInfo *chat_info,
                                     object_ptr<td_api::ChatAvailableReactions> &&available_reactions);
 
@@ -1562,6 +1569,7 @@ class Client final : public WebhookActor::Callback {
   td::WaitFreeHashMap<int64, td::unique_ptr<GroupInfo>> groups_;
   td::WaitFreeHashMap<int64, td::unique_ptr<SupergroupInfo>> supergroups_;
   td::WaitFreeHashMap<int64, td::unique_ptr<ChatInfo>> chats_;
+  td::WaitFreeHashMap<int64, td::unique_ptr<CommunityInfo>> communities_;
   td::WaitFreeHashMap<td::string, td::unique_ptr<BusinessConnection>> business_connections_;
 
   td::FlatHashMap<int32, td::vector<PromisedQueryPtr>> file_download_listeners_;
-- 
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