Method processChat

Telegram/SourceFiles/data/data_session.cpp:849–1209

}

not_null<PeerData*> Session::processChat(const MTPChat &data) {
	const auto result = data.match([&](const MTPDchat &data) {
		return peer(peerFromChat(data.vid().v));
	}, [&](const MTPDchatForbidden &data) {
		return peer(peerFromChat(data.vid().v));
	}, [&](const MTPDchatEmpty &data) {
		return peer(peerFromChat(data.vid().v));
	}, [&](const MTPDchannel &data) {
		return peer(peerFromChannel(data.vid().v));
	}, [&](const MTPDchannelForbidden &data) {
		return peer(peerFromChannel(data.vid().v));
	});
	auto minimal = false;

	using UpdateFlag = Data::PeerUpdate::Flag;
	auto flags = UpdateFlag::None | UpdateFlag::None;
	data.match([&](const MTPDchat &data) {
		const auto chat = result->asChat();

		const auto canAddMembers = chat->canAddMembers();
		if (chat->version() < data.vversion().v) {
			chat->setVersion(data.vversion().v);
			chat->invalidateParticipants();
		}

		chat->setName(qs(data.vtitle()));
		chat->setPhoto(data.vphoto());
		chat->date = data.vdate().v;

		if (const auto rights = data.vadmin_rights()) {
			chat->setAdminRights(ChatAdminRightsInfo(*rights).flags);
		} else {
			chat->setAdminRights(ChatAdminRights());
		}
		if (const auto rights = data.vdefault_banned_rights()) {
			chat->setDefaultRestrictions(ChatRestrictionsInfo(*rights).flags);
		} else {
			chat->setDefaultRestrictions(ChatRestrictions());
		}

		if (const auto migratedTo = data.vmigrated_to()) {
			migratedTo->match([&](const MTPDinputChannel &input) {
				const auto channel = this->channel(input.vchannel_id().v);
				channel->addFlags(ChannelDataFlag::Megagroup);
				if (!channel->accessHash()) {
					channel->setAccessHash(input.vaccess_hash().v);
				}
				ApplyMigration(chat, channel);
			}, [](const MTPDinputChannelFromMessage &) {
				LOG(("API Error: "
					"migrated_to contains channel from message."));
			}, [](const MTPDinputChannelEmpty &) {
			});
		}

		using Flag = ChatDataFlag;
		const auto flagsMask = Flag::Left
			| Flag::Creator