Update API scheme on layer 202.

Telegram/SourceFiles/calls/calls_instance.cpp

@@ -678,14 +678,14 @@ void Instance::handleGroupCallUpdate(
 	}, [](const MTPDupdateGroupCallParticipants &data) {
 		return data.vcall().match([&](const MTPDinputGroupCall &data) {
 			return data.vid().v;
-		}, [](const MTPDinputGroupCallSlug &) -> CallId {
+		}, [](const auto &) -> CallId {
-			Unexpected("slug in Instance::handleGroupCallUpdate");
+			Unexpected("slug/msg in Instance::handleGroupCallUpdate");
 		});
 	}, [](const MTPDupdateGroupCallChainBlocks &data) {
 		return data.vcall().match([&](const MTPDinputGroupCall &data) {
 			return data.vid().v;
-		}, [](const MTPDinputGroupCallSlug &) -> CallId {
+		}, [](const auto &) -> CallId {
-			Unexpected("slug in Instance::handleGroupCallUpdate");
+			Unexpected("slug/msg in Instance::handleGroupCallUpdate");
 		});
 	}, [](const auto &) -> CallId {
 		Unexpected("Type in Instance::handleGroupCallUpdate.");

Telegram/SourceFiles/calls/group/calls_group_call.cpp

@@ -715,44 +715,55 @@ void GroupCall::setupConferenceCall() {
 		sendOutboundBlock(std::move(block));
 	}, _lifetime);
 
-	_conferenceCall->staleParticipantId(
+	_conferenceCall->staleParticipantIds(
-	) | rpl::start_with_next([=](UserId staleId) {
+	) | rpl::start_with_next([=](const base::flat_set<UserId> &staleIds) {
-		removeConferenceParticipant(staleId);
+		removeConferenceParticipants(staleIds);
 	}, _lifetime);
 	_e2e->participantsSetValue(
 	) | rpl::start_with_next([=](const TdE2E::ParticipantsSet &set) {
 		auto users = base::flat_set<UserId>();
 		users.reserve(set.list.size());
-		auto ids = QStringList();
 		for (const auto &id : set.list) {
 			users.emplace(UserId(id.v));
-			ids.push_back('"' + _peer->owner().user(UserId(id.v))->name() + '"');
 		}
-		LOG(("ACCESS: ") + ids.join(", "));
 		_conferenceCall->setParticipantsWithAccess(std::move(users));
 	}, _lifetime);
 }
 
-void GroupCall::removeConferenceParticipant(UserId id) {
+void GroupCall::removeConferenceParticipants(
+		const base::flat_set<UserId> userIds) {
 	Expects(_e2e != nullptr);
+	Expects(!userIds.empty());
 
-	const auto block = _e2e->makeRemoveBlock(TdE2E::MakeUserId(id));
+	const auto owner = &_peer->owner();
+	auto inputs = QVector<MTPInputPeer>();
+	inputs.reserve(userIds.size());
+	auto ids = base::flat_set<TdE2E::UserId>();
+	ids.reserve(userIds.size());
+	for (const auto &id : userIds) {
+		inputs.push_back(owner->user(id)->input);
+		ids.emplace(TdE2E::MakeUserId(id));
+	}
+	const auto block = _e2e->makeRemoveBlock(ids);
 	if (block.data.isEmpty()) {
 		return;
 	}
-	_api.request(MTPphone_DeleteConferenceCallParticipant(
+	_api.request(MTPphone_DeleteConferenceCallParticipants(
 		inputCall(),
-		_peer->owner().user(id)->input,
+		MTP_vector<MTPInputPeer>(std::move(inputs)),
 		MTP_bytes(block.data)
 	)).done([=](const MTPUpdates &result) {
 		_peer->session().api().applyUpdates(result);
 	}).fail([=](const MTP::Error &error) {
 		const auto type = error.type();
 		if (type == u"GROUPCALL_FORBIDDEN"_q) {
-			setState(State::Joining);
+			LOG(("Call Info: "
-			rejoin();
+				"Rejoin after error '%1' in delete confcall participants"
+				).arg(type));
+			startRejoin();
 		} else {
-			LOG(("NOTREMOVED: %1").arg(type));
+			LOG(("Call Error: Could not remove confcall participants: %1"
+				).arg(type));
 		}
 	}).send();
 }
@@ -1187,8 +1198,8 @@ void GroupCall::join(const MTPInputGroupCall &inputCall) {
 	inputCall.match([&](const MTPDinputGroupCall &data) {
 		_id = data.vid().v;
 		_accessHash = data.vaccess_hash().v;
-	}, [&](const MTPDinputGroupCallSlug &) {
+	}, [&](const auto &) {
-		Unexpected("inputGroupCallSlug in GroupCall::join.");
+		Unexpected("slug/msg in GroupCall::join.");
 	});
 	setState(_scheduleDate ? State::Waiting : State::Joining);
 
@@ -1391,6 +1402,14 @@ void GroupCall::markTrackPaused(const VideoEndpoint &endpoint, bool paused) {
 		: Webrtc::VideoState::Active);
 }
 
+void GroupCall::startRejoin() {
+	for (const auto &[task, part] : _broadcastParts) {
+		_api.request(part.requestId).cancel();
+	}
+	setState(State::Joining);
+	rejoin();
+}
+
 void GroupCall::rejoin() {
 	rejoin(joinAs());
 }
@@ -1489,10 +1508,7 @@ void GroupCall::sendJoinRequest() {
 		| (_e2e ? (Flag::f_public_key | Flag::f_block) : Flag());
 	_api.request(MTPphone_JoinGroupCall(
 		MTP_flags(flags),
-		(_conferenceLinkSlug.isEmpty()
+		inputCallSafe(),
-			? inputCall()
-			: MTP_inputGroupCallSlug(
-				MTP_string(_conferenceLinkSlug))),
 		joinAs()->input,
 		MTP_string(_joinHash),
 		(_e2e ? TdE2E::PublicKeyToMTP(_e2e->myKey()) : MTPint256()),
@@ -1573,7 +1589,7 @@ void GroupCall::refreshLastBlockAndJoin() {
 		return;
 	}
 	_api.request(MTPphone_GetGroupCallChainBlocks(
-		inputCall(),
+		inputCallSafe(),
 		MTP_int(0),
 		MTP_int(-1),
 		MTP_int(1)
@@ -1632,6 +1648,11 @@ void GroupCall::requestSubchainBlocks(int subchain, int height) {
 		auto &state = _subchains[subchain];
 		state.requestId = 0;
 		_e2e->subchainBlocksRequestFinished(subchain);
+		if (error.type() == u"GROUPCALL_FORBIDDEN"_q) {
+			LOG(("Call Info: Rejoin after error '%1' in get chain blocks."
+				).arg(error.type()));
+			startRejoin();
+		}
 	}).send();
 }
 
@@ -1646,13 +1667,14 @@ void GroupCall::sendOutboundBlock(QByteArray block) {
 		const auto type = error.type();
 		if (type == u"GROUPCALL_FORBIDDEN"_q) {
 			_pendingOutboundBlock = block;
-			setState(State::Joining);
+			LOG(("Call Info: Rejoin after error '%1' in send confcall block."
-			rejoin();
+				).arg(type));
+			startRejoin();
 		} else if (type == u"BLOCK_INVALID"_q
 			|| type.startsWith(u"CONF_WRITE_CHAIN_INVALID"_q)) {
 			LOG(("Call Error: Could not broadcast block: %1").arg(type));
 		} else {
-			LOG(("HMM"));
+			LOG(("Call Error: Got '%1' in send confcall block.").arg(type));
 			sendOutboundBlock(block);
 		}
 	}).send();
@@ -2196,8 +2218,8 @@ void GroupCall::handleUpdate(const MTPDupdateGroupCallParticipants &data) {
 	const auto callId = data.vcall().match([](
 			const MTPDinputGroupCall &data) {
 		return data.vid().v;
-	}, [](const MTPDinputGroupCallSlug &) -> CallId {
+	}, [](const auto &) -> CallId {
-		Unexpected("inputGroupCallSlug in GroupCall::handleUpdate.");
+		Unexpected("slug/msg in GroupCall::handleUpdate.");
 	});
 	if (_id != callId) {
 		return;
@@ -2225,8 +2247,8 @@ void GroupCall::handleUpdate(const MTPDupdateGroupCallChainBlocks &data) {
 	const auto callId = data.vcall().match([](
 			const MTPDinputGroupCall &data) {
 		return data.vid().v;
-	}, [](const MTPDinputGroupCallSlug &) -> CallId {
+	}, [](const auto &) -> CallId {
-		Unexpected("inputGroupCallSlug in GroupCall::handleUpdate.");
+		Unexpected("slug/msg in GroupCall::handleUpdate.");
 	});
 	if (_id != callId || !_e2e) {
 		return;
@@ -2279,8 +2301,7 @@ void GroupCall::applySelfUpdate(const MTPDgroupCallParticipant &data) {
 			// I was removed from the call, rejoin.
 			LOG(("Call Info: "
 				"Rejoin after got 'left' with my ssrc."));
-			setState(State::Joining);
+			startRejoin();
-			rejoin();
 		}
 		return;
 	} else if (data.vsource().v != _joinState.ssrc) {
@@ -2307,8 +2328,7 @@ void GroupCall::applySelfUpdate(const MTPDgroupCallParticipant &data) {
 			: MuteState::ForceMuted);
 	} else if (_instanceMode == InstanceMode::Stream) {
 		LOG(("Call Info: Rejoin after unforcemute in stream mode."));
-		setState(State::Joining);
+		startRejoin();
-		rejoin();
 	} else if (mutedByAdmin()) {
 		setMuted(MuteState::Muted);
 		if (!_instanceTransitioning) {
@@ -2882,11 +2902,7 @@ void GroupCall::broadcastPartStart(std::shared_ptr<LoadPartTask> task) {
 	}).fail([=](const MTP::Error &error, const MTP::Response &response) {
 		if (error.type() == u"GROUPCALL_JOIN_MISSING"_q
 			|| error.type() == u"GROUPCALL_FORBIDDEN"_q) {
-			for (const auto &[task, part] : _broadcastParts) {
+			startRejoin();
-				_api.request(part.requestId).cancel();
-			}
-			setState(State::Joining);
-			rejoin();
 			return;
 		}
 		const auto status = (MTP::IsFloodError(error)
@@ -3005,11 +3021,7 @@ void GroupCall::requestCurrentTimeStart(
 
 		if (error.type() == u"GROUPCALL_JOIN_MISSING"_q
 			|| error.type() == u"GROUPCALL_FORBIDDEN"_q) {
-			for (const auto &[task, part] : _broadcastParts) {
+			startRejoin();
-				_api.request(part.requestId).cancel();
-			}
-			setState(State::Joining);
-			rejoin();
 		}
 	}).handleAllErrors().toDC(
 		MTP::groupCallStreamDcId(_broadcastDcId)
@@ -3415,7 +3427,7 @@ void GroupCall::checkJoined() {
 	}).fail([=](const MTP::Error &error) {
 		LOG(("Call Info: Full rejoin after error '%1' in checkGroupCall."
 			).arg(error.type()));
-		rejoin();
+		startRejoin();
 	}).send();
 }
 
@@ -3590,7 +3602,7 @@ void GroupCall::sendSelfUpdate(SendUpdateType type) {
 		if (error.type() == u"GROUPCALL_FORBIDDEN"_q) {
 			LOG(("Call Info: Rejoin after error '%1' in editGroupCallMember."
 				).arg(error.type()));
-			rejoin();
+			startRejoin();
 		}
 	}).send();
 }
@@ -3684,7 +3696,7 @@ void GroupCall::editParticipant(
 		if (error.type() == u"GROUPCALL_FORBIDDEN"_q) {
 			LOG(("Call Info: Rejoin after error '%1' in editGroupCallMember."
 				).arg(error.type()));
-			rejoin();
+			startRejoin();
 		}
 	}).send();
 }
@@ -3700,7 +3712,7 @@ std::variant<int, not_null<UserData*>> GroupCall::inviteUsers(
 	if (_conferenceCall) {
 		for (const auto &user : users) {
 			_api.request(MTPphone_InviteConferenceCallParticipant(
-				inputCall(),
+				inputCallSafe(),
 				user->inputUser
 			)).send();
 		}
@@ -3821,9 +3833,16 @@ auto GroupCall::otherParticipantStateValue() const
 MTPInputGroupCall GroupCall::inputCall() const {
 	Expects(_id != 0);
 
-	return MTP_inputGroupCall(
+	return MTP_inputGroupCall(MTP_long(_id), MTP_long(_accessHash));
-		MTP_long(_id),
+}
-		MTP_long(_accessHash));
+
+MTPInputGroupCall GroupCall::inputCallSafe() const {
+	const auto inviteMsgId = _conferenceJoinMessageId.bare;
+	return inviteMsgId
+		? MTP_inputGroupCallInviteMessage(MTP_int(inviteMsgId))
+		: _conferenceLinkSlug.isEmpty()
+		? inputCall()
+		: MTP_inputGroupCallSlug(MTP_string(_conferenceLinkSlug));
 }
 
 void GroupCall::destroyController() {

Telegram/SourceFiles/calls/group/calls_group_call.h

@@ -281,7 +281,7 @@ public:
 	void startScheduledNow();
 	void toggleScheduleStartSubscribed(bool subscribed);
 	void setNoiseSuppression(bool enabled);
-	void removeConferenceParticipant(UserId userId);
+	void removeConferenceParticipants(const base::flat_set<UserId> userIds);
 
 	bool emitShareScreenError();
 	bool emitShareCameraError();
@@ -545,6 +545,7 @@ private:
 		const std::optional<Data::GroupCallParticipant> &was,
 		const Data::GroupCallParticipant &now);
 	void applyMeInCallLocally();
+	void startRejoin();
 	void rejoin();
 	void leave();
 	void rejoin(not_null<PeerData*> as);
@@ -615,6 +616,7 @@ private:
 	[[nodiscard]] int activeVideoSendersCount() const;
 
 	[[nodiscard]] MTPInputGroupCall inputCall() const;
+	[[nodiscard]] MTPInputGroupCall inputCallSafe() const;
 
 	const not_null<Delegate*> _delegate;
 	const std::shared_ptr<Data::GroupCall> _conferenceCall;

Telegram/SourceFiles/data/data_channel.cpp

@@ -1006,7 +1006,7 @@ void ChannelData::setGroupCall(
 		owner().registerGroupCall(_call.get());
 		session().changes().peerUpdated(this, UpdateFlag::GroupCall);
 		addFlags(Flag::CallActive);
-	}, [&](const MTPDinputGroupCallSlug &) {
+	}, [&](const auto &) {
 		clearGroupCall();
 	});
 }

Telegram/SourceFiles/data/data_chat.cpp

@@ -239,7 +239,7 @@ void ChatData::setGroupCall(
 		owner().registerGroupCall(_call.get());
 		session().changes().peerUpdated(this, UpdateFlag::GroupCall);
 		addFlags(Flag::CallActive);
-	}, [&](const MTPDinputGroupCallSlug &) {
+	}, [&](const auto &) {
 		clearGroupCall();
 	});
 }

Telegram/SourceFiles/data/data_group_call.cpp

@@ -85,7 +85,7 @@ GroupCall::GroupCall(
 		}) | rpl::start_with_next([=](const ParticipantUpdate &update) {
 			if (const auto id = peerToUser(update.was->peer->id)) {
 				if (_participantsWithAccess.current().contains(id)) {
-					_staleParticipantId.fire_copy(id);
+					_staleParticipantIds.fire({ id });
 				}
 			}
 		}, _checkStaleLifetime);
@@ -262,12 +262,16 @@ void GroupCall::checkStaleRequest() {
 				existing.emplace(id);
 			}
 		}
+		auto stale = base::flat_set<UserId>();
 		for (const auto &id : list) {
 			if (!existing.contains(id)) {
-				_staleParticipantId.fire_copy(id);
+				stale.reserve(list.size());
-				return;
+				stale.emplace(id);
 			}
 		}
+		if (!stale.empty()) {
+			_staleParticipantIds.fire(std::move(stale));
+		}
 	}).fail([=] {
 		_checkStaleRequestId = 0;
 	}).send();
@@ -402,8 +406,9 @@ auto GroupCall::participantsWithAccessValue() const
 	return _participantsWithAccess.value();
 }
 
-rpl::producer<UserId> GroupCall::staleParticipantId() const {
+auto GroupCall::staleParticipantIds() const
-	return _staleParticipantId.events();
+-> rpl::producer<base::flat_set<UserId>> {
+	return _staleParticipantIds.events();
 }
 
 void GroupCall::enqueueUpdate(const MTPUpdate &update) {

Telegram/SourceFiles/data/data_group_call.h

@@ -150,7 +150,8 @@ public:
 		-> const base::flat_set<UserId> &;
 	[[nodiscard]] auto participantsWithAccessValue() const
 		-> rpl::producer<base::flat_set<UserId>>;
-	[[nodiscard]] rpl::producer<UserId> staleParticipantId() const;
+	[[nodiscard]] auto staleParticipantIds() const
+		-> rpl::producer<base::flat_set<UserId>>;
 	void setParticipantsLoaded();
 	void checkStaleParticipants();
 	void checkStaleRequest();
@@ -264,7 +265,7 @@ private:
 	rpl::event_stream<> _participantsReloaded;
 
 	rpl::variable<base::flat_set<UserId>> _participantsWithAccess;
-	rpl::event_stream<UserId> _staleParticipantId;
+	rpl::event_stream<base::flat_set<UserId>> _staleParticipantIds;
 	mtpRequestId _checkStaleRequestId = 0;
 	rpl::lifetime _checkStaleLifetime;
 

Telegram/SourceFiles/history/history.cpp

@@ -1227,9 +1227,9 @@ void History::applyServiceChanges(
 			}
 		}
 	}, [&](const MTPDmessageActionConferenceCall &data) {
-		if (!data.is_active() && !data.is_missed()) {
+		if (!data.is_active() && !data.is_missed() && !item->out()) {
 			if (const auto window = session().tryResolveWindow()) {
-				window->resolveConferenceCall(qs(data.vslug()), item->id);
+				window->resolveConferenceCall(item->id);
 			}
 		}
 	}, [](const auto &) {

Telegram/SourceFiles/history/history_item.cpp

@@ -5640,13 +5640,12 @@ void HistoryItem::setServiceMessageByAction(const MTPmessageAction &action) {
 		}
 
 		const auto id = this->id;
-		const auto slug = qs(action.vslug());
 		setCustomServiceLink(std::make_shared<LambdaClickHandler>([=](
 				ClickContext context) {
 			const auto my = context.other.value<ClickHandlerContext>();
 			const auto weak = my.sessionWindow;
 			if (const auto strong = weak.get()) {
-				strong->resolveConferenceCall(slug, id);
+				strong->resolveConferenceCall(id);
 			}
 		}));
 

Telegram/SourceFiles/history/history_item_helpers.cpp

@@ -915,8 +915,8 @@ MediaCheckResult CheckMessageMedia(const MTPMessageMedia &media) {
 [[nodiscard]] CallId CallIdFromInput(const MTPInputGroupCall &data) {
 	return data.match([&](const MTPDinputGroupCall &data) {
 		return data.vid().v;
-	}, [](const MTPDinputGroupCallSlug &) -> CallId {
+	}, [](const auto &) -> CallId {
-		Unexpected("inputGroupCallSlug in CallIdFromInput.");
+		Unexpected("slug/msg in CallIdFromInput.");
 	});
 }
 

Telegram/SourceFiles/mtproto/scheme/api.tl

@@ -187,7 +187,7 @@ messageActionStarGift#4717e8a4 flags:# name_hidden:flags.0?true saved:flags.2?tr
 messageActionStarGiftUnique#acdfcb81 flags:# upgrade:flags.0?true transferred:flags.1?true saved:flags.2?true refunded:flags.5?true gift:StarGift can_export_at:flags.3?int transfer_stars:flags.4?long from_id:flags.6?Peer peer:flags.7?Peer saved_id:flags.7?long = MessageAction;
 messageActionPaidMessagesRefunded#ac1f1fcd count:int stars:long = MessageAction;
 messageActionPaidMessagesPrice#bcd71419 stars:long = MessageAction;
-messageActionConferenceCall#ff397dea flags:# missed:flags.0?true active:flags.1?true call_id:long slug:string duration:flags.2?int other_participants:flags.3?Vector<Peer> = MessageAction;
+messageActionConferenceCall#2ffe2f7a flags:# missed:flags.0?true active:flags.1?true call_id:long duration:flags.2?int other_participants:flags.3?Vector<Peer> = MessageAction;
 
 dialog#d58a08c6 flags:# pinned:flags.2?true unread_mark:flags.3?true view_forum_as_messages:flags.6?true peer:Peer top_message:int read_inbox_max_id:int read_outbox_max_id:int unread_count:int unread_mentions_count:int unread_reactions_count:int notify_settings:PeerNotifySettings pts:flags.0?int draft:flags.1?DraftMessage folder_id:flags.4?int ttl_period:flags.5?int = Dialog;
 dialogFolder#71bd134c flags:# pinned:flags.2?true folder:Folder peer:Peer top_message:int unread_muted_peers_count:int unread_unmuted_peers_count:int unread_muted_messages_count:int unread_unmuted_messages_count:int = Dialog;
@@ -1346,6 +1346,7 @@ groupCall#d597650c flags:# join_muted:flags.1?true can_change_join_muted:flags.2
 
 inputGroupCall#d8aa840f id:long access_hash:long = InputGroupCall;
 inputGroupCallSlug#fe06823f slug:string = InputGroupCall;
+inputGroupCallInviteMessage#8c10603f msg_id:int = InputGroupCall;
 
 groupCallParticipant#eba636fe flags:# muted:flags.0?true left:flags.1?true can_self_unmute:flags.2?true just_joined:flags.4?true versioned:flags.5?true min:flags.8?true muted_by_you:flags.9?true volume_by_admin:flags.10?true self:flags.12?true video_joined:flags.15?true peer:Peer date:int active_date:flags.3?int source:int volume:flags.7?int about:flags.11?string raise_hand_rating:flags.13?long video:flags.6?GroupCallParticipantVideo presentation:flags.14?GroupCallParticipantVideo = GroupCallParticipant;
 
@@ -2607,7 +2608,7 @@ phone.getGroupCallStreamChannels#1ab21940 call:InputGroupCall = phone.GroupCallS
 phone.getGroupCallStreamRtmpUrl#deb3abbf peer:InputPeer revoke:Bool = phone.GroupCallStreamRtmpUrl;
 phone.saveCallLog#41248786 peer:InputPhoneCall file:InputFile = Bool;
 phone.createConferenceCall#fbcefee6 random_id:int = phone.GroupCall;
-phone.deleteConferenceCallParticipant#7b8cc2a3 call:InputGroupCall peer:InputPeer block:bytes = Updates;
+phone.deleteConferenceCallParticipants#22e547c7 call:InputGroupCall ids:Vector<InputPeer> block:bytes = Updates;
 phone.sendConferenceCallBroadcast#c6701900 call:InputGroupCall block:bytes = Updates;
 phone.inviteConferenceCallParticipant#3e9cf7ee call:InputGroupCall user_id:InputUser = Updates;
 phone.declineConferenceCallInvite#3c479971 msg_id:int = Updates;

Telegram/SourceFiles/tde2e/tde2e_api.cpp

@@ -124,8 +124,8 @@ Block Call::makeJoinBlock() {
 	};
 }
 
-Block Call::makeRemoveBlock(UserId id) {
+Block Call::makeRemoveBlock(const base::flat_set<UserId> &ids) {
-	if (failed() || !_id || id == _myUserId) {
+	if (failed() || !_id) {
 		return {};
 	}
 
@@ -137,11 +137,13 @@ Block Call::makeRemoveBlock(UserId id) {
 	auto found = false;
 	auto updated = state.value();
 	auto &list = updated.participants;
-	for (auto i = begin(list); i != end(list); ++i) {
+	for (auto i = begin(list); i != end(list);) {
-		if (uint64(i->user_id) == id.v) {
+		const auto userId = UserId{ uint64(i->user_id) };
-			list.erase(i);
+		if (userId != _myUserId && ids.contains(userId)) {
+			i = list.erase(i);
 			found = true;
-			break;
+		} else {
+			++i;
 		}
 	}
 	if (!found) {

Telegram/SourceFiles/tde2e/tde2e_api.h

@@ -97,7 +97,7 @@ public:
 
 	void refreshLastBlock0(std::optional<Block> block);
 	[[nodiscard]] Block makeJoinBlock();
-	[[nodiscard]] Block makeRemoveBlock(UserId id);
+	[[nodiscard]] Block makeRemoveBlock(const base::flat_set<UserId> &ids);
 
 	[[nodiscard]] rpl::producer<ParticipantsSet> participantsSetValue() const;
 

Telegram/SourceFiles/ui/image/image_location.cpp

@@ -173,7 +173,7 @@ StorageFileLocation::StorageFileLocation(
 			_id = data.vid().v;
 			_accessHash = data.vaccess_hash().v;
 		}, [](const auto &data) {
-			Unexpected("inputGroupCallSlug in inputGroupCallStream.");
+			Unexpected("slug/msg in inputGroupCallStream.");
 		});
 		_volumeId = data.vtime_ms().v;
 		_localId = data.vscale().v;

Telegram/SourceFiles/window/window_session_controller.cpp

@@ -840,6 +840,14 @@ void SessionNavigation::resolveCollectible(
 	}).send();
 }
 
+void SessionNavigation::resolveConferenceCall(const QString &slug) {
+	resolveConferenceCall(slug, 0);
+}
+
+void SessionNavigation::resolveConferenceCall(MsgId inviteMsgId) {
+	resolveConferenceCall(QString(), inviteMsgId);
+}
+
 void SessionNavigation::resolveConferenceCall(
 		const QString &slug,
 		MsgId inviteMsgId) {
@@ -853,11 +861,14 @@ void SessionNavigation::resolveConferenceCall(
 
 	const auto limit = 5;
 	_conferenceCallRequestId = _api.request(MTPphone_GetGroupCall(
-		MTP_inputGroupCallSlug(MTP_string(slug)),
+		(inviteMsgId
+			? MTP_inputGroupCallInviteMessage(MTP_int(inviteMsgId.bare))
+			: MTP_inputGroupCallSlug(MTP_string(slug))),
 		MTP_int(limit)
 	)).done([=](const MTPphone_GroupCall &result) {
 		_conferenceCallRequestId = 0;
 		const auto slug = base::take(_conferenceCallSlug);
+		const auto inviteMsgId = base::take(_conferenceCallInviteMsgId);
 
 		result.data().vcall().match([&](const auto &data) {
 			const auto call = std::make_shared<Data::GroupCall>(
@@ -884,7 +895,7 @@ void SessionNavigation::resolveConferenceCall(
 			box->boxClosing() | rpl::start_with_next([=] {
 				if (inviteMsgId && !*confirmed) {
 					_api.request(MTPphone_DeclineConferenceCallInvite(
-						MTP_int(inviteMsgId)
+						MTP_int(inviteMsgId.bare)
 					)).send();
 				}
 			}, box->lifetime());

Telegram/SourceFiles/window/window_session_controller.h

@@ -264,7 +264,8 @@ public:
 		PeerId ownerId,
 		const QString &entity,
 		Fn<void(QString)> fail = nullptr);
-	void resolveConferenceCall(const QString &slug, MsgId inviteMsgId = 0);
+	void resolveConferenceCall(const QString &slug);
+	void resolveConferenceCall(MsgId inviteMsgId);
 
 	base::weak_ptr<Ui::Toast::Instance> showToast(
 		Ui::Toast::Config &&config);
@@ -291,6 +292,7 @@ private:
 	void resolveChannelById(
 		ChannelId channelId,
 		Fn<void(not_null<ChannelData*>)> done);
+	void resolveConferenceCall(const QString &slug, MsgId inviteMsgId);
 
 	void resolveDone(
 		const MTPcontacts_ResolvedPeer &result,