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//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2026
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#pragma once
#include "td/telegram/CustomEmojiId.h"
#include "td/telegram/DialogId.h"
#include "td/telegram/DialogNotificationSettings.h"
#include "td/telegram/files/FileId.h"
#include "td/telegram/ForumTopic.h"
#include "td/telegram/ForumTopicEditedData.h"
#include "td/telegram/ForumTopicId.h"
#include "td/telegram/ForumTopicInfo.h"
#include "td/telegram/MessageContentType.h"
#include "td/telegram/MessageId.h"
#include "td/telegram/MessagesInfo.h"
#include "td/telegram/td_api.h"
#include "td/telegram/telegram_api.h"
#include "td/actor/actor.h"
#include "td/utils/common.h"
#include "td/utils/Promise.h"
#include "td/utils/Status.h"
#include "td/utils/WaitFreeHashMap.h"
#include "td/utils/WaitFreeHashSet.h"
namespace td {
class DraftMessage;
class Td;
class ForumTopicManager final : public Actor {
public:
ForumTopicManager(Td *td, ActorShared<> parent);
ForumTopicManager(const ForumTopicManager &) = delete;
ForumTopicManager &operator=(const ForumTopicManager &) = delete;
ForumTopicManager(ForumTopicManager &&) = delete;
ForumTopicManager &operator=(ForumTopicManager &&) = delete;
~ForumTopicManager() final;
int32 get_forum_topic_id_object(DialogId dialog_id, ForumTopicId forum_topic_id);
bool can_be_forum(DialogId dialog_id) const;
Status is_forum(DialogId dialog_id, bool allow_bots = false);
bool can_send_message_to_forum_topic(DialogId dialog_id, ForumTopicId forum_topic_id) const;
void create_forum_topic(DialogId dialog_id, string &&title, bool title_missing,
td_api::object_ptr<td_api::forumTopicIcon> &&icon,
Promise<td_api::object_ptr<td_api::forumTopicInfo>> &&promise);
void on_forum_topic_created(DialogId dialog_id, unique_ptr<ForumTopicInfo> &&forum_topic_info,
Promise<td_api::object_ptr<td_api::forumTopicInfo>> &&promise);
void edit_forum_topic(DialogId dialog_id, ForumTopicId forum_topic_id, string &&title, bool edit_icon_custom_emoji,
CustomEmojiId icon_custom_emoji_id, Promise<Unit> &&promise);
void get_forum_topic(DialogId dialog_id, ForumTopicId forum_topic_id,
Promise<td_api::object_ptr<td_api::forumTopic>> &&promise);
void reload_forum_topic(DialogId dialog_id, ForumTopicId forum_topic_id, Promise<Unit> &&promise);
void on_get_forum_topic(DialogId dialog_id, ForumTopicId expected_forum_topic_id, MessagesInfo &&info,
telegram_api::object_ptr<telegram_api::ForumTopic> &&topic,
Promise<td_api::object_ptr<td_api::forumTopic>> &&promise);
void on_get_forum_topics(DialogId dialog_id, bool order_by_creation_date, MessagesInfo &&info,
vector<telegram_api::object_ptr<telegram_api::ForumTopic>> &&topics,
Promise<td_api::object_ptr<td_api::forumTopics>> &&promise);
void get_forum_topic_link(DialogId dialog_id, ForumTopicId forum_topic_id,
Promise<td_api::object_ptr<td_api::messageLink>> &&promise);
void get_forum_topics(DialogId dialog_id, string query, int32 offset_date, MessageId offset_message_id,
ForumTopicId offset_forum_topic_id, int32 limit,
Promise<td_api::object_ptr<td_api::forumTopics>> promise);
void toggle_forum_topic_is_closed(DialogId dialog_id, ForumTopicId forum_topic_id, bool is_closed,
Promise<Unit> &&promise);
Status set_forum_topic_notification_settings(
DialogId dialog_id, ForumTopicId forum_topic_id,
td_api::object_ptr<td_api::chatNotificationSettings> &¬ification_settings) TD_WARN_UNUSED_RESULT;
Status set_forum_topic_draft_message(DialogId dialog_id, ForumTopicId forum_topic_id,
unique_ptr<DraftMessage> &&draft_message);
void toggle_forum_topic_is_hidden(DialogId dialog_id, bool is_hidden, Promise<Unit> &&promise);
void toggle_forum_topic_is_pinned(DialogId dialog_id, ForumTopicId forum_topic_id, bool is_pinned,
Promise<Unit> &&promise);
void set_pinned_forum_topics(DialogId dialog_id, vector<ForumTopicId> forum_topic_ids, Promise<Unit> &&promise);
void delete_forum_topic(DialogId dialog_id, ForumTopicId forum_topic_id, Promise<Unit> &&promise);
void delete_all_dialog_topics(DialogId dialog_id);
void read_forum_topic_messages(DialogId dialog_id, ForumTopicId forum_topic_id, MessageId last_read_inbox_message_id);
void on_update_forum_topic_unread(DialogId dialog_id, ForumTopicId forum_topic_id, MessageId last_message_id,
MessageId last_read_inbox_message_id, MessageId last_read_outbox_message_id,
int32 unread_count);
void on_update_forum_topic_notify_settings(DialogId dialog_id, ForumTopicId forum_topic_id,
tl_object_ptr<telegram_api::peerNotifySettings> &&peer_notify_settings,
const char *source);
void on_update_forum_topic_draft_message(DialogId dialog_id, ForumTopicId forum_topic_id,
unique_ptr<DraftMessage> &&draft_message);
void clear_forum_topic_draft_by_sent_message(DialogId dialog_id, ForumTopicId forum_topic_id,
bool message_clear_draft, MessageContentType message_content_type);
void on_update_forum_topic_is_pinned(DialogId dialog_id, ForumTopicId forum_topic_id, bool is_pinned);
void on_update_pinned_forum_topics(DialogId dialog_id, vector<ForumTopicId> forum_topic_ids);
void on_forum_topic_edited(DialogId dialog_id, ForumTopicId forum_topic_id, const ForumTopicEditedData &edited_data);
bool on_get_forum_topic_error(DialogId dialog_id, ForumTopicId forum_topic_id, const Status &status,
const char *source);
void on_get_forum_topic_info(DialogId dialog_id, const ForumTopicInfo &topic_info, const char *source);
void on_get_forum_topic_infos(DialogId dialog_id, vector<tl_object_ptr<telegram_api::ForumTopic>> &&forum_topics,
const char *source);
void on_topic_message_count_changed(DialogId dialog_id, ForumTopicId forum_topic_id, int diff);
void on_topic_mention_count_changed(DialogId dialog_id, ForumTopicId forum_topic_id, int32 count, bool is_relative);
void on_topic_reaction_count_changed(DialogId dialog_id, ForumTopicId forum_topic_id, int32 count, bool is_relative);
void on_topic_poll_vote_count_changed(DialogId dialog_id, ForumTopicId forum_topic_id, int32 count, bool is_relative);
void repair_topic_unread_mention_count(DialogId dialog_id, ForumTopicId forum_topic_id);
void repair_topic_unread_reaction_count(DialogId dialog_id, ForumTopicId forum_topic_id);
void repair_topic_unread_poll_vote_count(DialogId dialog_id, ForumTopicId forum_topic_id);
private:
static constexpr size_t MAX_FORUM_TOPIC_TITLE_LENGTH = 128; // server-side limit for forum topic title
struct Topic {
unique_ptr<ForumTopicInfo> info_;
unique_ptr<ForumTopic> topic_;
int32 receive_date_ = 0;
int32 message_count_ = 0;
mutable bool need_save_to_database_ = true;
template <class StorerT>
void store(StorerT &storer) const;
template <class ParserT>
void parse(ParserT &parser);
int32 MAGIC = 0x1fac3901;
};
struct DialogTopics {
WaitFreeHashMap<ForumTopicId, unique_ptr<Topic>, ForumTopicIdHash> topics_;
WaitFreeHashSet<ForumTopicId, ForumTopicIdHash> deleted_topic_ids_;
};
void tear_down() final;
static Status can_be_forum_topic_id(ForumTopicId forum_topic_id);
DialogTopics *add_dialog_topics(DialogId dialog_id);
DialogTopics *get_dialog_topics(DialogId dialog_id);
static Topic *add_topic(DialogTopics *dialog_topics, ForumTopicId forum_topic_id);
static Topic *get_topic(DialogTopics *dialog_topics, ForumTopicId forum_topic_id);
Topic *add_topic(DialogId dialog_id, ForumTopicId forum_topic_id);
Topic *get_topic(DialogId dialog_id, ForumTopicId forum_topic_id);
const Topic *get_topic(DialogId dialog_id, ForumTopicId forum_topic_id) const;
ForumTopicInfo *get_topic_info(DialogId dialog_id, ForumTopicId forum_topic_id);
const ForumTopicInfo *get_topic_info(DialogId dialog_id, ForumTopicId forum_topic_id) const;
void set_topic_info(DialogId dialog_id, Topic *topic, unique_ptr<ForumTopicInfo> forum_topic_info);
ForumTopicId on_get_forum_topic_impl(DialogId dialog_id, tl_object_ptr<telegram_api::ForumTopic> &&forum_topic);
const DialogNotificationSettings *get_forum_topic_notification_settings(DialogId dialog_id,
ForumTopicId forum_topic_id) const;
DialogNotificationSettings *get_forum_topic_notification_settings(DialogId dialog_id, ForumTopicId forum_topic_id);
bool update_forum_topic_notification_settings(DialogId dialog_id, ForumTopicId forum_topic_id,
DialogNotificationSettings *current_settings,
DialogNotificationSettings &&new_settings);
void on_delete_forum_topic(DialogId dialog_id, ForumTopicId forum_topic_id, Promise<Unit> &&promise);
vector<FileId> get_topic_file_ids(const Topic *topic) const;
td_api::object_ptr<td_api::forumTopic> get_forum_topic_object(DialogId dialog_id, ForumTopicId forum_topic_id) const;
td_api::object_ptr<td_api::updateForumTopicInfo> get_update_forum_topic_info_object(
const ForumTopicInfo *topic_info) const;
void send_update_forum_topic_info(const ForumTopicInfo *topic_info) const;
td_api::object_ptr<td_api::updateForumTopic> get_update_forum_topic_object(DialogId dialog_id,
const Topic *topic) const;
void send_update_forum_topic(DialogId dialog_id, const Topic *topic) const;
void on_forum_topic_changed(DialogId dialog_id, Topic *topic);
void save_topic_to_database(DialogId dialog_id, const Topic *topic);
void delete_topic_from_database(DialogId dialog_id, ForumTopicId forum_topic_id, Promise<Unit> &&promise);
Td *td_;
ActorShared<> parent_;
WaitFreeHashMap<DialogId, unique_ptr<DialogTopics>, DialogIdHash> dialog_topics_;
};
} // namespace td
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