Add updateSavedMessagesTopic and more fields about the topic.

td/generate/scheme/td_api.tl

@@ -1902,8 +1902,12 @@ savedMessagesTopicAuthorHidden = SavedMessagesTopic;
 savedMessagesTopicSavedFromChat chat_id:int53 = SavedMessagesTopic;
 
 
-//@description Contains information about a found Saved Messages topic @topic The topic @last_message Last message in the topic; may be null if none or unknown
-foundSavedMessagesTopic topic:SavedMessagesTopic last_message:message = FoundSavedMessagesTopic;
+//@description Contains information about a found Saved Messages topic
+//@topic The topic
+//@is_pinned True, if the topic is pinned
+//@order A parameter used to determine order of the topic in the topic list. Topics must be sorted by the order in descending order
+//@last_message Last message in the topic; may be null if none or unknown
+foundSavedMessagesTopic topic:SavedMessagesTopic is_pinned:Bool order:int64 last_message:message = FoundSavedMessagesTopic;
 
 //@description Contains a list of Saved Messages topics
 //@total_count Total number of Saved Messages topics found
@@ -6506,6 +6510,9 @@ updateChatFolders chat_folders:vector<chatFolderInfo> main_chat_list_position:in
 //@online_member_count New number of online members in the chat, or 0 if unknown
 updateChatOnlineMemberCount chat_id:int53 online_member_count:int32 = Update;
 
+//@description Basic information about a Saved Messages topic has changed @topic New information about the topic
+updateSavedMessagesTopic topic:foundSavedMessagesTopic = Update;
+
 //@description The list of pinned Saved Messages topics has changed. The app can call getPinnedSavedMessagesTopics to get the new list
 updatePinnedSavedMessagesTopics = Update;
 

td/telegram/SavedMessagesManager.cpp

@@ -24,6 +24,8 @@
 #include "td/utils/format.h"
 #include "td/utils/logging.h"
 
+#include <limits>
+
 namespace td {
 
 class GetPinnedSavedDialogsQuery final : public Td::ResultHandler {
@@ -366,11 +368,29 @@ void SavedMessagesManager::on_topic_message_deleted(SavedMessagesTopicId saved_m
 }
 
 void SavedMessagesManager::on_topic_changed(SavedMessagesTopicId saved_messages_topic_id, SavedMessagesTopic *topic) {
+  CHECK(topic != nullptr);
   if (!topic->is_changed_) {
     return;
   }
 
-  // TODO send updateSavedMessagesTopic
+  if (topic->private_order_ != 0) {
+    bool is_deleted = topic_list_.ordered_topics_.erase({topic->private_order_, saved_messages_topic_id}) > 0;
+    CHECK(is_deleted);
+  }
+  if (topic->pinned_order_ != 0) {
+    topic->private_order_ = topic->pinned_order_;
+  } else if (topic->last_message_id_ != MessageId()) {
+    topic->private_order_ = (static_cast<int64>(topic->last_message_date_) << 31) +
+                            topic->last_message_id_.get_prev_server_message_id().get_server_message_id().get();
+  }
+  if (topic->private_order_ != 0) {
+    bool is_inserted = topic_list_.ordered_topics_.insert({topic->private_order_, saved_messages_topic_id}).second;
+    CHECK(is_inserted);
+  }
+
+  send_closure(G()->td(), &Td::send_update,
+               td_api::make_object<td_api::updateSavedMessagesTopic>(
+                   get_found_saved_messages_topic_object(saved_messages_topic_id, topic)));
 }
 
 void SavedMessagesManager::get_pinned_saved_messages_topics(
@@ -552,13 +572,18 @@ void SavedMessagesManager::on_get_saved_messages_topics(
 
 td_api::object_ptr<td_api::foundSavedMessagesTopic> SavedMessagesManager::get_found_saved_messages_topic_object(
     SavedMessagesTopicId saved_messages_topic_id, const SavedMessagesTopic *topic) const {
+  CHECK(topic != nullptr);
   td_api::object_ptr<td_api::message> last_message_object;
   if (topic->last_message_id_ != MessageId()) {
     last_message_object = td_->messages_manager_->get_message_object(
         {td_->dialog_manager_->get_my_dialog_id(), topic->last_message_id_}, "get_found_saved_messages_topic_object");
   }
+  auto public_order = TopicDate(topic->private_order_, saved_messages_topic_id) <= topic_list_.last_topic_date_
+                          ? topic->private_order_
+                          : static_cast<int64>(0);
   return td_api::make_object<td_api::foundSavedMessagesTopic>(
-      saved_messages_topic_id.get_saved_messages_topic_object(td_), std::move(last_message_object));
+      saved_messages_topic_id.get_saved_messages_topic_object(td_), topic->pinned_order_ != 0, public_order,
+      std::move(last_message_object));
 }
 
 int64 SavedMessagesManager::get_next_pinned_saved_messages_topic_order() {
@@ -816,4 +841,20 @@ void SavedMessagesManager::on_update_pinned_saved_messages_topics() {
   send_closure(G()->td(), &Td::send_update, td_api::make_object<td_api::updatePinnedSavedMessagesTopics>());
 }
 
+void SavedMessagesManager::get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const {
+  if (td_->auth_manager_->is_bot()) {
+    return;
+  }
+
+  for (const auto &it : saved_messages_topics_) {
+    const auto *topic = it.second.get();
+    updates.push_back(td_api::make_object<td_api::updateSavedMessagesTopic>(
+        get_found_saved_messages_topic_object(topic->saved_messages_topic_id_, topic)));
+  }
+}
+
+const SavedMessagesManager::TopicDate SavedMessagesManager::MIN_TOPIC_DATE{std::numeric_limits<int64>::max(),
+                                                                           SavedMessagesTopicId()};
+const SavedMessagesManager::TopicDate SavedMessagesManager::MAX_TOPIC_DATE{0, SavedMessagesTopicId()};
+
 }  // namespace td

td/telegram/SavedMessagesManager.h

@@ -16,6 +16,8 @@
 #include "td/utils/common.h"
 #include "td/utils/Promise.h"
 
+#include <set>
+
 namespace td {
 
 class Td;
@@ -57,6 +59,8 @@ class SavedMessagesManager final : public Actor {
 
   void on_update_pinned_saved_messages_topics();
 
+  void get_current_state(vector<td_api::object_ptr<td_api::Update>> &updates) const;
+
  private:
   static constexpr int32 MAX_GET_HISTORY = 100;  // server side limit
 
@@ -65,9 +69,38 @@ class SavedMessagesManager final : public Actor {
     MessageId last_message_id_;
     int32 last_message_date_ = 0;
     int64 pinned_order_ = 0;
+    int64 private_order_ = 0;
     bool is_changed_ = true;
   };
 
+  class TopicDate {
+    int64 order_;
+    SavedMessagesTopicId topic_id_;
+
+   public:
+    TopicDate(int64 order, SavedMessagesTopicId topic_id) : order_(order), topic_id_(topic_id) {
+    }
+
+    bool operator<(const TopicDate &other) const {
+      return order_ > other.order_ ||
+             (order_ == other.order_ && topic_id_.get_unique_id() > other.topic_id_.get_unique_id());
+    }
+
+    bool operator<=(const TopicDate &other) const {
+      return order_ > other.order_ ||
+             (order_ == other.order_ && topic_id_.get_unique_id() >= other.topic_id_.get_unique_id());
+    }
+  };
+
+  static const TopicDate MIN_TOPIC_DATE;
+  static const TopicDate MAX_TOPIC_DATE;
+
+  struct TopicList {
+    std::set<TopicDate> ordered_topics_;
+
+    TopicDate last_topic_date_ = MIN_TOPIC_DATE;  // in memory
+  };
+
   void tear_down() final;
 
   SavedMessagesTopic *get_topic(SavedMessagesTopicId saved_messages_topic_id);
@@ -104,6 +137,8 @@ class SavedMessagesManager final : public Actor {
   bool are_pinned_saved_messages_topics_inited_ = false;
 
   int64 current_pinned_saved_messages_topic_order_ = static_cast<int64>(2147000000) << 32;
+
+  TopicList topic_list_;
 };
 
 }  // namespace td

td/telegram/Td.cpp

@@ -4305,6 +4305,8 @@ void Td::on_request(uint64 id, const td_api::getCurrentState &request) {
 
     notification_manager_->get_current_state(updates);
 
+    saved_messages_manager_->get_current_state(updates);
+
     story_manager_->get_current_state(updates);
 
     config_manager_.get_actor_unsafe()->get_current_state(updates);