From a29f4b43d40508e3b384c797e55f3f499ac564e6 Mon Sep 17 00:00:00 2001
From: levlam <levlam@telegram.org>
Date: Mon, 1 Feb 2021 02:43:23 +0300
Subject: [PATCH] Load even known group call participant after receiving typing
 from them.

---
 td/telegram/GroupCallManager.cpp | 14 +++++++++++++-
 td/telegram/GroupCallManager.h   |  3 +++
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/td/telegram/GroupCallManager.cpp b/td/telegram/GroupCallManager.cpp
index 16586f373..04f2aa958 100644
--- a/td/telegram/GroupCallManager.cpp
+++ b/td/telegram/GroupCallManager.cpp
@@ -967,6 +967,16 @@ GroupCallManager::GroupCallParticipants *GroupCallManager::add_group_call_partic
   return participants.get();
 }
 
+const GroupCallParticipant *GroupCallManager::get_group_call_participant(
+    const GroupCallParticipants *group_call_participants, UserId user_id) {
+  for (auto &group_call_participant : group_call_participants->participants) {
+    if (group_call_participant.user_id == user_id) {
+      return &group_call_participant;
+    }
+  }
+  return nullptr;
+}
+
 void GroupCallManager::on_update_group_call_participants(
     InputGroupCallId input_group_call_id, vector<tl_object_ptr<telegram_api::groupCallParticipant>> &&participants,
     int32 version) {
@@ -2114,7 +2124,9 @@ void GroupCallManager::on_user_speaking_in_group_call(GroupCallId group_call_id,
     return;
   }
 
-  if (!td_->contacts_manager_->have_user_force(user_id)) {
+  if (!td_->contacts_manager_->have_user_force(user_id) ||
+      (!recursive && need_group_call_participants(input_group_call_id, group_call) &&
+       get_group_call_participant(add_group_call_participants(input_group_call_id), user_id) == nullptr)) {
     if (recursive) {
       LOG(ERROR) << "Failed to find speaking " << user_id << " from " << input_group_call_id;
     } else {
diff --git a/td/telegram/GroupCallManager.h b/td/telegram/GroupCallManager.h
index 462f46427..c4c885838 100644
--- a/td/telegram/GroupCallManager.h
+++ b/td/telegram/GroupCallManager.h
@@ -167,6 +167,9 @@ class GroupCallManager : public Actor {
 
   GroupCallParticipants *add_group_call_participants(InputGroupCallId input_group_call_id);
 
+  const GroupCallParticipant *get_group_call_participant(const GroupCallParticipants *group_call_participants,
+                                                         UserId user_id);
+
   void on_group_call_left(InputGroupCallId input_group_call_id, int32 audio_source, bool need_rejoin);
 
   void on_group_call_left_impl(GroupCall *group_call, bool need_rejoin);