kotatogram-desktop/Telegram/SourceFiles/calls/calls_group_call.cpp

/*
This file is part of Telegram Desktop,
the official desktop application for the Telegram messaging service.

For license and copyright information please follow this link:
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
*/
#include "calls/calls_group_call.h"

#include "main/main_session.h"
//#include "main/main_account.h"
//#include "main/main_app_config.h"
#include "apiwrap.h"
#include "lang/lang_keys.h"
#include "boxes/confirm_box.h"
//#include "boxes/rate_call_box.h"
//#include "calls/calls_instance.h"
//#include "base/openssl_help.h"
//#include "mtproto/mtproto_dh_utils.h"
//#include "mtproto/mtproto_config.h"
//#include "core/application.h"
//#include "core/core_settings.h"
//#include "media/audio/media_audio_track.h"
//#include "base/platform/base_platform_info.h"
//#include "calls/calls_panel.h"
//#include "webrtc/webrtc_video_track.h"
//#include "webrtc/webrtc_media_devices.h"
#include "data/data_channel.h"
//#include "data/data_session.h"
//#include "facades.h"

#include <tgcalls/group/GroupInstanceImpl.h>

#include <QtCore/QJsonDocument>
#include <QtCore/QJsonObject>
#include <QtCore/QJsonArray>

namespace tgcalls {
class GroupInstanceImpl;
} // namespace tgcalls

namespace Calls {

GroupCall::GroupCall(
	not_null<Delegate*> delegate,
	not_null<ChannelData*> channel,
	const MTPInputGroupCall &inputCall)
: _delegate(delegate)
, _channel(channel)
, _api(&_channel->session().mtp()) {
	if (inputCall.c_inputGroupCall().vid().v) {
		join(inputCall);
	} else {
		start();
	}
}

GroupCall::~GroupCall() {
	destroyController();
}

void GroupCall::start() {
	const auto randomId = rand_value<int32>();
	_api.request(MTPphone_CreateGroupCall(
		_channel->inputChannel,
		MTP_int(randomId)
	)).done([=](const MTPUpdates &result) {
		_channel->session().api().applyUpdates(result);
	}).fail([=](const RPCError &error) {
		int a = error.code();
	}).send();
}

void GroupCall::join(const MTPInputGroupCall &inputCall) {
	inputCall.match([&](const MTPDinputGroupCall &data) {
		_id = data.vid().v;
		_accessHash = data.vaccess_hash().v;
		createAndStartController();
		const auto weak = base::make_weak(this);
		_instance->emitJoinPayload([=](tgcalls::GroupJoinPayload payload) {
			crl::on_main(weak, [=, payload = std::move(payload)]{
				auto fingerprints = QJsonArray();
				for (const auto print : payload.fingerprints) {
					auto object = QJsonObject();
					object.insert("hash", QString::fromStdString(print.hash));
					object.insert("setup", QString::fromStdString(print.setup));
					object.insert(
						"fingerprint",
						QString::fromStdString(print.fingerprint));
					fingerprints.push_back(object);
				}

				auto root = QJsonObject();
				root.insert("ufrag", QString::fromStdString(payload.ufrag));
				root.insert("pwd", QString::fromStdString(payload.pwd));
				root.insert("fingerprints", fingerprints);
				root.insert("ssrc", int(payload.ssrc));

				const auto json = QJsonDocument(root).toJson(
					QJsonDocument::Compact);
				_api.request(MTPphone_JoinGroupCall(
					MTP_flags(_muted.current()
						? MTPphone_JoinGroupCall::Flag::f_muted
						: MTPphone_JoinGroupCall::Flag(0)),
					inputCall,
					MTP_dataJSON(MTP_bytes(json))
				)).done([=](const MTPUpdates &updates) {
					_channel->session().api().applyUpdates(updates);
				}).fail([=](const RPCError &error) {
					int a = error.code();
				}).send();
			});
		});
	});
}

void GroupCall::setMuted(bool mute) {
	_muted = mute;
	if (_instance) {
		_instance->setIsMuted(mute);
	}
}

bool GroupCall::handleUpdate(const MTPGroupCall &call) {
	return call.match([&](const MTPDgroupCall &data) {
		if (_id != data.vid().v
			|| _accessHash != data.vaccess_hash().v
			|| !_instance) {
			return false;
		}
		if (const auto params = data.vparams()) {
			params->match([&](const MTPDdataJSON &data) {
				auto error = QJsonParseError{ 0, QJsonParseError::NoError };
				const auto document = QJsonDocument::fromJson(
					data.vdata().v,
					&error);
				if (error.error != QJsonParseError::NoError) {
					LOG(("API Error: "
						"Failed to parse group call params, error: %1."
						).arg(error.errorString()));
					return;
				} else if (!document.isObject()) {
					LOG(("API Error: "
						"Not an object received in group call params."));
					return;
				}
				const auto readString = [](
						const QJsonObject &object,
						const char *key) {
					return object.value(key).toString().toStdString();
				};
				const auto root = document.object().value("transport").toObject();
				auto payload = tgcalls::GroupJoinResponsePayload();
				payload.ufrag = readString(root, "ufrag");
				payload.pwd = readString(root, "pwd");
				const auto prints = root.value("fingerprints").toArray();
				const auto candidates = root.value("candidates").toArray();
				for (const auto &print : prints) {
					const auto object = print.toObject();
					payload.fingerprints.push_back(tgcalls::GroupJoinPayloadFingerprint{
						.hash = readString(object, "hash"),
						.setup = readString(object, "setup"),
						.fingerprint = readString(object, "fingerprint"),
					});
				}
				for (const auto &candidate : candidates) {
					const auto object = candidate.toObject();
					payload.candidates.push_back(tgcalls::GroupJoinResponseCandidate{
						.port = readString(object, "port"),
						.protocol = readString(object, "protocol"),
						.network = readString(object, "network"),
						.generation = readString(object, "generation"),
						.id = readString(object, "id"),
						.component = readString(object, "component"),
						.foundation = readString(object, "foundation"),
						.priority = readString(object, "priority"),
						.ip = readString(object, "ip"),
						.type = readString(object, "type"),
						.tcpType = readString(object, "tcpType"),
						.relAddr = readString(object, "relAddr"),
						.relPort = readString(object, "relPort"),
					});
				}
				_instance->setJoinResponsePayload(payload);
				_api.request(MTPphone_GetGroupParticipants(
					inputCall(),
					MTP_int(0),
					MTP_int(10)
				)).done([=](const MTPphone_GroupParticipants &result) {
					auto sources = std::vector<uint32_t>();
					result.match([&](const MTPDphone_groupParticipants &data) {
						for (const auto &p : data.vparticipants().v) {
							p.match([&](const MTPDgroupCallParticipant &data) {
								if (data.vuser_id().v != _channel->session().userId()) {
									sources.push_back(data.vsource().v);
								}
							});
						}
					});
					_instance->setSsrcs(std::move(sources));
					_instance->setIsMuted(false);
				}).fail([=](const RPCError &error) {
					int a = error.code();
				}).send();
			});
		}
		return true;
	}, [&](const MTPDgroupCallPrivate &data) {
		if (_instance || _id) {
			return false;
		}
		join(MTP_inputGroupCall(data.vid(), data.vaccess_hash()));
		return true;
	}, [&](const MTPDgroupCallDiscarded &data) {
		if (data.vid().v != _id) {
			return false;
		}
		return true;
	});
}

void GroupCall::createAndStartController() {
	using AudioLevels = std::vector<std::pair<uint32_t, float>>;

	const auto weak = base::make_weak(this);
	tgcalls::GroupInstanceDescriptor descriptor = {
		.config = tgcalls::GroupConfig{
		},
		.networkStateUpdated = [=](bool) {
		},
		.audioLevelsUpdated = [=](const AudioLevels &data) {
		},
	};
	if (Logs::DebugEnabled()) {
		auto callLogFolder = cWorkingDir() + qsl("DebugLogs");
		auto callLogPath = callLogFolder + qsl("/last_group_call_log.txt");
		auto callLogNative = QDir::toNativeSeparators(callLogPath);
#ifdef Q_OS_WIN
		descriptor.config.logPath.data = callLogNative.toStdWString();
#else // Q_OS_WIN
		const auto callLogUtf = QFile::encodeName(callLogNative);
		descriptor.config.logPath.data.resize(callLogUtf.size());
		ranges::copy(callLogUtf, descriptor.config.logPath.data.begin());
#endif // Q_OS_WIN
		QFile(callLogPath).remove();
		QDir().mkpath(callLogFolder);
	}

	LOG(("Call Info: Creating group instance"));
	_instance = std::make_unique<tgcalls::GroupInstanceImpl>(
		std::move(descriptor));

	const auto raw = _instance.get();
	if (_muted.current()) {
		raw->setIsMuted(_muted.current());
	}
	//raw->setAudioOutputDuckingEnabled(settings.callAudioDuckingEnabled());
}

void GroupCall::setCurrentAudioDevice(bool input, const QString &deviceId) {
	if (_instance) {
		const auto id = deviceId.toStdString();
		//if (input) {
		//	_instance->setAudioInputDevice(id);
		//} else {
		//	_instance->setAudioOutputDevice(id);
		//}
	}
}

void GroupCall::setAudioVolume(bool input, float level) {
	if (_instance) {
		//if (input) {
		//	_instance->setInputVolume(level);
		//} else {
		//	_instance->setOutputVolume(level);
		//}
	}
}

void GroupCall::setAudioDuckingEnabled(bool enabled) {
	if (_instance) {
		//_instance->setAudioOutputDuckingEnabled(enabled);
	}
}

void GroupCall::handleRequestError(const RPCError &error) {
	//if (error.type() == qstr("USER_PRIVACY_RESTRICTED")) {
	//	Ui::show(Box<InformBox>(tr::lng_call_error_not_available(tr::now, lt_user, _user->name)));
	//} else if (error.type() == qstr("PARTICIPANT_VERSION_OUTDATED")) {
	//	Ui::show(Box<InformBox>(tr::lng_call_error_outdated(tr::now, lt_user, _user->name)));
	//} else if (error.type() == qstr("CALL_PROTOCOL_LAYER_INVALID")) {
	//	Ui::show(Box<InformBox>(Lang::Hard::CallErrorIncompatible().replace("{user}", _user->name)));
	//}
	//finish(FinishType::Failed);
}

void GroupCall::handleControllerError(const QString &error) {
	if (error == u"ERROR_INCOMPATIBLE"_q) {
		//Ui::show(Box<InformBox>(
		//	Lang::Hard::CallErrorIncompatible().replace(
		//		"{user}",
		//		_user->name)));
	} else if (error == u"ERROR_AUDIO_IO"_q) {
		Ui::show(Box<InformBox>(tr::lng_call_error_audio_io(tr::now)));
	}
	//finish(FinishType::Failed);
}

MTPInputGroupCall GroupCall::inputCall() const {
	Expects(_id != 0);

	return MTP_inputGroupCall(
		MTP_long(_id),
		MTP_long(_accessHash));
}

void GroupCall::destroyController() {
	if (_instance) {
		//_instance->stop([](tgcalls::FinalState) {
		//});

		DEBUG_LOG(("Call Info: Destroying call controller.."));
		_instance.reset();
		DEBUG_LOG(("Call Info: Call controller destroyed."));
	}
}

} // namespace Calls