contextnetworkimpl.cpp

// SPDX-FileCopyrightText: Copyright (C) 2013 swift Project Community / Contributors
// SPDX-License-Identifier: GPL-3.0-or-later OR LicenseRef-swift-pilot-client-1
 
#include "core/context/contextnetworkimpl.h"
 
#include <QStringBuilder>
#include <QTimer>
 
#include "config/buildconfig.h"
#include "core/airspaceanalyzer.h"
#include "core/airspacemonitor.h"
#include "core/application.h"
#include "core/context/contextownaircraft.h"
#include "core/context/contextownaircraftimpl.h"
#include "core/context/contextsimulatorimpl.h"
#include "core/corefacade.h"
#include "core/fsd/fsdclient.h"
#include "core/webdataservices.h"
#include "misc/aviation/aircrafticaocode.h"
#include "misc/aviation/aircraftparts.h"
#include "misc/aviation/atcstationlist.h"
#include "misc/aviation/callsign.h"
#include "misc/aviation/comsystem.h"
#include "misc/dbusserver.h"
#include "misc/logcategories.h"
#include "misc/logmessage.h"
#include "misc/network/entityflags.h"
#include "misc/network/networkutils.h"
#include "misc/network/textmessage.h"
#include "misc/pq/constants.h"
#include "misc/pq/frequency.h"
#include "misc/pq/time.h"
#include "misc/pq/units.h"
#include "misc/sequence.h"
#include "misc/simplecommandparser.h"
#include "misc/simulation/simulatorplugininfo.h"
#include "misc/stringutils.h"
 
using namespace swift::config;
using namespace swift::misc;
using namespace swift::misc::physical_quantities;
using namespace swift::misc::aviation;
using namespace swift::misc::network;
using namespace swift::misc::geo;
using namespace swift::misc::simulation;
using namespace swift::misc::weather;
using namespace swift::core::fsd;
using namespace swift::core::vatsim;
 
namespace swift::core::context
{
    CContextNetwork::CContextNetwork(CCoreFacadeConfig::ContextMode mode, CCoreFacade *runtime)
        : IContextNetwork(mode, runtime)
    {
        Q_ASSERT(this->getRuntime());
        Q_ASSERT(this->getIContextOwnAircraft());
        Q_ASSERT(this->getIContextOwnAircraft()->isUsingImplementingObject());
        CContextNetwork::registerHelp();
 
        // 1. Init by "network driver"
        m_fsdClient = new CFSDClient(this, // client provider
                                     this->getRuntime()->getCContextOwnAircraft(), // own aircraft provider
                                     this, // remote aircraft provider
                                     this); // thread owner
        m_fsdClient->start(); // FSD thread
        connect(m_fsdClient, &CFSDClient::connectionStatusChanged, this, &CContextNetwork::onFsdConnectionStatusChanged,
                Qt::QueuedConnection);
        connect(m_fsdClient, &CFSDClient::killRequestReceived, this, &CContextNetwork::kicked, Qt::QueuedConnection);
        connect(m_fsdClient, &CFSDClient::textMessagesReceived, this, &CContextNetwork::onTextMessagesReceived,
                Qt::QueuedConnection);
        connect(m_fsdClient, &CFSDClient::textMessageSent, this, &CContextNetwork::onTextMessageSent,
                Qt::QueuedConnection);
        connect(m_fsdClient, &CFSDClient::severeNetworkError, this, &CContextNetwork::severeNetworkError,
                Qt::QueuedConnection);
        connect(m_fsdClient, &CFSDClient::muteRequestReceived, this, &CContextNetwork::muteRequestReceived,
                Qt::QueuedConnection);
 
        // 2. Update timer for data (network data such as frequency)
        // we use 2 timers so we can query at different times (not too many queirs at once)
        m_requestAircraftDataTimer = new QTimer(this);
        connect(m_requestAircraftDataTimer, &QTimer::timeout, this, &CContextNetwork::requestAircraftDataUpdates);
        m_requestAircraftDataTimer->start(30 * 1000);
        m_requestAircraftDataTimer->setObjectName("CContextNetwork::m_requestAircraftDataTimer");
 
        m_requestAtisTimer = new QTimer(this);
        connect(m_requestAtisTimer, &QTimer::timeout, this, &CContextNetwork::requestAtisUpdates);
        m_requestAtisTimer->start(13 * 1000); // should not be called at the same time as above
        m_requestAtisTimer->setObjectName("CContextNetwork::m_requestAtisTimer");
 
        // 3. send staggered model matching signals, to avoid to many matchings at the same time
        m_staggeredMatchingTimer = new QTimer(this);
        connect(m_staggeredMatchingTimer, &QTimer::timeout, this, &CContextNetwork::emitReadyForMatching);
        m_staggeredMatchingTimer->start(200);
        m_staggeredMatchingTimer->setObjectName("CContextNetwork::m_staggeredMatchingTimer");
 
        // 4. Airspace contents
        Q_ASSERT_X(this->getRuntime()->getCContextOwnAircraft(), Q_FUNC_INFO,
                   "this and own aircraft context must be local");
        Q_ASSERT_X(this->getRuntime()->getCContextSimulator(), Q_FUNC_INFO,
                   "this and own simulator context must be local");
        m_airspace = new CAirspaceMonitor(this->getRuntime()->getCContextOwnAircraft(),
                                          this->getRuntime()->getCContextSimulator(), m_fsdClient, this);
        m_fsdClient->setClientProvider(m_airspace);
        connect(m_airspace, &CAirspaceMonitor::atcStationDisconnected, this, &CContextNetwork::atcStationDisconnected,
                Qt::QueuedConnection);
        connect(m_airspace, &CAirspaceMonitor::changedAtcStationsOnline, this,
                &CContextNetwork::changedAtcStationsOnline, Qt::QueuedConnection);
        connect(m_airspace, &CAirspaceMonitor::changedAircraftInRange, this, &CContextNetwork::changedAircraftInRange,
                Qt::QueuedConnection);
        connect(m_airspace, &CAirspaceMonitor::removedAircraft, this, &IContextNetwork::removedAircraft,
                Qt::QueuedConnection); // DBus
        connect(m_airspace, &CAirspaceMonitor::readyForModelMatching, this,
                &CContextNetwork::onReadyForModelMatching); // intentionally NOT QueuedConnection
        connect(m_airspace, &CAirspaceMonitor::addedAircraft, this, &CContextNetwork::addedAircraft,
                Qt::QueuedConnection);
        connect(m_airspace, &CAirspaceMonitor::changedAtisReceived, this, &CContextNetwork::onChangedAtisReceived,
                Qt::QueuedConnection);
    }
 
    void CContextNetwork::setSimulationEnvironmentProvider(ISimulationEnvironmentProvider *provider)
    {
        if (this->canUseAirspaceMonitor())
        {
            m_airspace->setSimulationEnvironmentProvider(provider);
        }
        if (this->canUseFsd())
        {
            m_fsdClient->setSimulationEnvironmentProvider(provider);
        }
    }
 
    CContextNetwork::~CContextNetwork() { this->gracefulShutdown(); }
 
    CAircraftSituationList CContextNetwork::remoteAircraftSituations(const CCallsign &callsign) const
    {
        if (!this->canUseAirspaceMonitor())
        {
            return {};
        }
        return m_airspace->remoteAircraftSituations(callsign);
    }
 
    CAircraftSituation CContextNetwork::remoteAircraftSituation(const aviation::CCallsign &callsign, int index) const
    {
        if (!this->canUseAirspaceMonitor())
        {
            return {};
        }
        return m_airspace->remoteAircraftSituation(callsign, index);
    }
 
    MillisecondsMinMaxMean
    CContextNetwork::remoteAircraftSituationsTimestampDifferenceMinMaxMean(const CCallsign &callsign) const
    {
        if (!this->canUseAirspaceMonitor())
        {
            return {};
        }
        return m_airspace->remoteAircraftSituationsTimestampDifferenceMinMaxMean(callsign);
    }
 
    CAircraftSituationList CContextNetwork::latestRemoteAircraftSituations() const
    {
        if (!this->canUseAirspaceMonitor())
        {
            return {};
        }
        return m_airspace->latestRemoteAircraftSituations();
    }
 
    CAircraftSituationList CContextNetwork::latestOnGroundProviderElevations() const
    {
        Q_ASSERT(m_airspace);
        return m_airspace->latestOnGroundProviderElevations();
    }
 
    CAircraftPartsList CContextNetwork::remoteAircraftParts(const CCallsign &callsign) const
    {
        if (!this->canUseAirspaceMonitor())
        {
            return {};
        }
        return m_airspace->remoteAircraftParts(callsign);
    }
 
    int CContextNetwork::remoteAircraftPartsCount(const CCallsign &callsign) const
    {
        if (!this->canUseAirspaceMonitor())
        {
            return 0;
        }
        return m_airspace->remoteAircraftPartsCount(callsign);
    }
 
    int CContextNetwork::remoteAircraftSituationsCount(const CCallsign &callsign) const
    {
        if (!this->canUseAirspaceMonitor())
        {
            return 0;
        }
        return m_airspace->remoteAircraftSituationsCount(callsign);
    }
 
    bool CContextNetwork::isRemoteAircraftSupportingParts(const CCallsign &callsign) const
    {
        if (!this->canUseAirspaceMonitor())
        {
            return false;
        }
        return m_airspace->isRemoteAircraftSupportingParts(callsign);
    }
 
    CCallsignSet CContextNetwork::remoteAircraftSupportingParts() const
    {
        if (!this->canUseAirspaceMonitor())
        {
            return {};
        }
        return m_airspace->remoteAircraftSupportingParts();
    }
 
    CAircraftSituationChangeList CContextNetwork::remoteAircraftSituationChanges(const CCallsign &callsign) const
    {
        if (!this->canUseAirspaceMonitor())
        {
            return {};
        }
        return m_airspace->remoteAircraftSituationChanges(callsign);
    }
 
    int CContextNetwork::remoteAircraftSituationChangesCount(const CCallsign &callsign) const
    {
        if (!this->canUseAirspaceMonitor())
        {
            return {};
        }
        return m_airspace->remoteAircraftSituationChangesCount(callsign);
    }
 
    QList<QMetaObject::Connection> CContextNetwork::connectRemoteAircraftProviderSignals(
        QObject *receiver, std::function<void(const CAircraftSituation &)> situationSlot,
        std::function<void(const CCallsign &, const CAircraftParts &)> partsSlot,
        std::function<void(const CCallsign &)> removedAircraftSlot,
        std::function<void(const CAirspaceAircraftSnapshot &)> aircraftSnapshotSlot)
    {
        Q_ASSERT_X(m_airspace, Q_FUNC_INFO, "Missing airspace");
        return m_airspace->connectRemoteAircraftProviderSignals(receiver, situationSlot, partsSlot, removedAircraftSlot,
                                                                aircraftSnapshotSlot);
    }
 
    void CContextNetwork::gracefulShutdown()
    {
        this->disconnect(); // all signals
        if (this->isConnected())
        {
            this->disconnectFromNetwork();
        }
        if (m_fsdClient)
        {
            m_fsdClient->gracefulShutdown();
            m_fsdClient->setClientProvider(nullptr);
            m_fsdClient->deleteLater();
            m_fsdClient = nullptr;
        }
 
        if (m_airspace)
        {
            m_airspace->gracefulShutdown();
            m_airspace->deleteLater();
            m_airspace = nullptr;
        }
    }
 
    CStatusMessage CContextNetwork::connectToNetwork(const CServer &server, const QString &extraLiveryString,
                                                     bool sendLivery, const QString &extraModelString,
                                                     bool sendModelString, const CCallsign &partnerCallsign,
                                                     CLoginMode mode)
    {
        if (!this->canUseFsd())
        {
            return { CStatusMessage({ CLogCategories::validation() }, CStatusMessage::SeverityInfo,
                                    u"Invalid FSD state (shutdown)") };
        }
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO;
        }
 
        QString msg;
        if (!server.getUser().hasCredentials())
        {
            return CStatusMessage({ CLogCategories::validation() }, CStatusMessage::SeverityError,
                                  u"Invalid user credentials");
        }
        if (!this->ownAircraft().getAircraftIcaoCode().hasDesignator())
        {
            return CStatusMessage({ CLogCategories::validation() }, CStatusMessage::SeverityError,
                                  u"Invalid ICAO data for own aircraft");
        }
        if (!CNetworkUtils::canConnect(server, msg, 5000))
        {
            return { CStatusMessage::SeverityError, msg };
        }
        if (m_fsdClient->isConnected())
        {
            return CStatusMessage({ CLogCategories::validation() }, CStatusMessage::SeverityError,
                                  u"Already connected");
        }
        if (this->isPendingConnection())
        {
            return CStatusMessage({ CLogCategories::validation() }, CStatusMessage::SeverityError,
                                  u"Pending connection, please wait");
        }
 
        this->getIContextOwnAircraft()->updateOwnAircraftPilot(server.getUser());
        const CSimulatedAircraft ownAircraft(this->ownAircraft());
        m_fsdClient->setPartnerCallsign(
            isValidPartnerCallsign(ownAircraft.getCallsign(), partnerCallsign) ? partnerCallsign : CCallsign());
 
        // Fall back to observer mode, if no simulator is available or not simulating
        if (!CBuildConfig::isLocalDeveloperDebugBuild() && !this->getIContextSimulator()->isSimulatorSimulating())
        {
            CLogMessage(this).info(
                u"No simulator connected or connected simulator not simulating. Falling back to observer mode");
            mode.setLoginMode(CLoginMode::Observer);
        }
 
        const CSimulatorInfo sim = this->getIContextSimulator() ?
                                       this->getIContextSimulator()->getSimulatorPluginInfo().getSimulatorInfo() :
                                       CSimulatorInfo();
        const QString l =
            extraLiveryString.isEmpty() ? ownAircraft.getModel().getSwiftLiveryString(sim) : extraLiveryString;
        const QString m = extraModelString.isEmpty() ? ownAircraft.getModelString() : extraModelString;
 
        // FG fix, do not send livery and model ids for FlightGear
        // https://discordapp.com/channels/539048679160676382/567091362030419981/698124094482415616
        if (sim.isFG() && extraModelString.isEmpty())
        {
            sendModelString = false;
        }
 
        m_currentMode = mode;
        m_fsdClient->setLoginMode(mode);
        m_fsdClient->setCallsign(ownAircraft.getCallsign());
 
        // set this BEFORE model string as FG has different handling
        m_fsdClient->setSimType(sim);
 
        m_fsdClient->setIcaoCodes(ownAircraft);
        m_fsdClient->setLiveryAndModelString(l, sendLivery, m, sendModelString);
        m_fsdClient->setClientName(sApp->swiftVersionChar());
        m_fsdClient->setVersion(CBuildConfig::getVersion().majorVersion(), CBuildConfig::getVersion().minorVersion());
 
#ifdef SWIFT_VATSIM_SUPPORT
        int clientId = 0;
        QString clientKey;
        if (!getEnvironmentClientIdAndKey(clientId, clientKey))
        {
            // if not set, use the default client id and key from build config
            clientId = CBuildConfig::vatsimClientId();
            clientKey = CBuildConfig::vatsimPrivateKey();
        }
 
        m_fsdClient->setClientIdAndKey(static_cast<quint16>(clientId), clientKey.toLocal8Bit());
#endif
        m_fsdClient->setClientCapabilities(Capabilities::AircraftInfo | Capabilities::FastPos | Capabilities::VisPos |
                                           Capabilities::AtcInfo | Capabilities::AircraftConfig |
                                           Capabilities::IcaoEquipment);
        m_fsdClient->setServer(server);
 
        m_fsdClient->setPilotRating(PilotRating::Student);
        m_fsdClient->setAtcRating(AtcRating::Observer);
 
        m_fsdClient->connectToServer();
        return CStatusMessage({ CLogCategories::validation() }, CStatusMessage::SeverityInfo,
                              u"Connection pending " % server.getAddress() % u' ' % QString::number(server.getPort()));
    }
 
    CServer CContextNetwork::getConnectedServer() const
    {
        if (!this->canUseFsd())
        {
            return {};
        }
        return this->isConnected() ? m_fsdClient->getServer() : CServer();
    }
 
    CLoginMode CContextNetwork::getLoginMode() const
    {
        if (!this->canUseFsd())
        {
            return {};
        }
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO;
        }
        return m_fsdClient->getLoginMode();
    }
 
    CStatusMessage CContextNetwork::disconnectFromNetwork()
    {
        if (!this->canUseFsd())
        {
            return { CStatusMessage({ CLogCategories::validation() }, CStatusMessage::SeverityInfo,
                                    u"Invalid FSD state (shutdown)") };
        }
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO;
        }
        if (m_fsdClient->isConnected() || m_fsdClient->isPendingConnection())
        {
            m_fsdClient->disconnectFromServer();
            return CStatusMessage({ CLogCategories::validation() }, CStatusMessage::SeverityInfo,
                                  u"Connection terminating");
        }
        else
        {
            return CStatusMessage({ CLogCategories::validation() }, CStatusMessage::SeverityWarning,
                                  u"Already disconnected");
        }
    }
 
    bool CContextNetwork::isConnected() const
    {
        if (!this->canUseFsd())
        {
            return false;
        }
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO;
        }
        return m_fsdClient->isConnected();
    }
 
    bool CContextNetwork::isPendingConnection() const
    {
        if (!this->canUseFsd())
        {
            return false;
        }
        return m_fsdClient->isPendingConnection();
    }
 
    bool CContextNetwork::parseCommandLine(const QString &commandLine, const CIdentifier &originator)
    {
        Q_UNUSED(originator);
 
        if (!this->canUseAirspaceMonitor())
        {
            return false;
        }
        if (!this->canUseFsd())
        {
            return false;
        }
        if (commandLine.isEmpty())
        {
            return false;
        }
 
        static const QStringList cmds({ ".msg", ".m", ".chat", ".altos", ".altoffset", ".addtimeos", ".addtimeoffset",
                                        ".wallop", ".reinit", ".reinitialize", ".enable", ".disable", ".ignore",
                                        ".unignore", ".fsd" });
        CSimpleCommandParser parser(cmds);
        parser.parse(commandLine);
        if (!parser.isKnownCommand())
        {
            return false;
        }
        if (parser.matchesCommand(".msg", ".m", ".chat"))
        {
            if (!this->getIContextNetwork() || !this->getIContextNetwork()->isConnected())
            {
                CLogMessage(this).validationError(u"Network needs to be connected");
                return false;
            }
            else if (!this->getIContextOwnAircraft())
            {
                CLogMessage(this).validationError(u"No own aircraft data, no text message can be sent");
                return false;
            }
            if (parser.countParts() < 3)
            {
                CLogMessage(this).validationError(u"Incorrect message");
                return false;
            }
 
            // set receiver
            const CSimulatedAircraft ownAircraft(this->getIContextOwnAircraft()->getOwnAircraft());
            const QString receiver = parser.part(1).trimmed().toLower(); // receiver
            CCallsign ownCallsign = ownAircraft.getCallsign();
            if (m_fsdClient)
            {
                // override with the preset callsign, as the own callsign can be different for partner callsign
                // scenarios copilot scenarios
                const CCallsign presetCallsign = m_fsdClient->getPresetCallsign();
                if (!presetCallsign.isEmpty())
                {
                    ownCallsign = presetCallsign;
                }
            }
 
            if (ownCallsign.isEmpty())
            {
                CLogMessage(this).validationError(u"No own callsign");
                return false;
            }
 
            CTextMessage tm;
            tm.setSenderCallsign(ownCallsign);
 
            // based on the CPZ bug
            // https://discordapp.com/channels/539048679160676382/539486309882789888/576765888401768449 no longer use
            // starts/ends with
            if (receiver == QStringView(u"c1") || receiver == QStringView(u"com1") || receiver == QStringView(u"comm1"))
            {
                tm.setFrequency(ownAircraft.getCom1System().getFrequencyActive());
            }
            else if (receiver == QStringView(u"c2") || receiver == QStringView(u"com2") ||
                     receiver == QStringView(u"comm2"))
            {
                tm.setFrequency(ownAircraft.getCom2System().getFrequencyActive());
            }
            else if (receiver == "u" || receiver == QStringView(u"uni") || receiver == QStringView(u"unicom"))
            {
                tm.setFrequency(CPhysicalQuantitiesConstants::FrequencyUnicom());
            }
            else
            {
                const CFrequency radioFrequency =
                    CComSystem::parseComFrequency(receiver, CPqString::SeparatorBestGuess);
                if (!radioFrequency.isNull())
                {
                    if (CComSystem::isValidCivilAviationFrequency(radioFrequency))
                    {
                        tm.setFrequency(radioFrequency);
                    }
                    else
                    {
                        CLogMessage(this).validationError(u"Wrong COM frequency for text message");
                        return false;
                    }
                }
                else
                {
                    const CCallsign toCallsign(receiver);
                    tm.setRecipientCallsign(toCallsign);
                }
            }
 
            const QString msg(parser.partAndRemainingStringAfter(2));
            tm.setMessage(msg);
            if (tm.isEmpty())
            {
                CLogMessage(this).validationError(u"No text message body");
                return false;
            }
            CTextMessageList tml(tm);
            this->sendTextMessages(tml);
            return true;
        }
        else if (parser.matchesCommand(".altos", ".altoffset"))
        {
            if (!m_airspace)
            {
                return false;
            }
            if (parser.countParts() < 2)
            {
                return false;
            }
 
            const QString csPart(parser.part(1));
            CCallsign cs;
            if (csPart.contains('?'))
            {
                cs = IRemoteAircraftProvider::testAltitudeOffsetCallsign(); // wildcard
            }
            else
            {
                cs = CCallsign(csPart);
                if (!m_airspace->isAircraftInRange(cs))
                {
                    CLogMessage(this).validationError(u"Altitude offset unknown callsign");
                    return false;
                }
            }
 
            CLength os(CLength::null());
            if (parser.hasPart(2))
            {
                os.parseFromString(parser.part(2), CPqString::SeparatorBestGuess);
            }
 
            const bool added = this->testAddAltitudeOffset(cs, os);
            if (added)
            {
                CLogMessage(this).info(u"Added altitude offset %1 for %2")
                    << os.valueRoundedWithUnit(2) << cs.asString();
            }
            else
            {
                CLogMessage(this).info(u"Removed altitude offset %1") << cs.asString();
            }
 
            return true;
        }
        else if (parser.matchesCommand(".addtimeos", ".addtimeoffset"))
        {
            if (!m_airspace)
            {
                return false;
            }
            if (parser.countParts() < 2)
            {
                return false;
            }
 
            CTime os(CTime::null());
            if (parser.hasPart(2))
            {
                os.parseFromString(parser.part(2), CPqString::SeparatorBestGuess);
            }
 
            if (!os.isNull() && os.isPositiveWithEpsilonConsidered())
            {
                const qint64 ost = os.valueInteger(CTimeUnit::ms());
                CLogMessage(this).info(u"Added add offset time %1ms") << ost;
            }
            else
            {
                CLogMessage(this).info(u"Reset add. time offset");
            }
        }
        else if (parser.matchesCommand(".reinit", ".reinitialize"))
        {
            if (!m_airspace)
            {
                return false;
            }
            const int count = m_airspace->reInitializeAllAircraft();
            if (count > 0)
            {
                CLogMessage(this).info(u"Re-init %1 aircraft") << count;
            }
        }
        else if (parser.matchesCommand(".wallop"))
        {
            if (parser.countParts() < 2)
            {
                return false;
            }
            if (!m_fsdClient)
            {
                return false;
            }
            if (!this->isConnected())
            {
                CLogMessage(this).validationError(u"Network needs to be connected");
                return false;
            }
            const QString wallopMsg = parser.partAndRemainingStringAfter(1);
            if (wallopMsg.isEmpty())
            {
                CLogMessage(this).validationError(u"No wallop message body");
                return false;
            }
            m_fsdClient->sendTextMessage(TextMessageGroups::AllSups, wallopMsg);
            return true;
        }
        else if (parser.matchesCommand(".enable", ".unignore"))
        {
            if (parser.countParts() < 2)
            {
                return false;
            }
            if (!m_fsdClient)
            {
                return false;
            }
            if (!this->isConnected())
            {
                return false;
            }
            const CCallsign cs(parser.part(1));
            if (cs.isValid())
            {
                this->updateAircraftEnabled(cs, true);
            }
        }
        else if (parser.matchesCommand(".disable", ".ignore"))
        {
            if (parser.countParts() < 2)
            {
                return false;
            }
            if (!m_fsdClient)
            {
                return false;
            }
            if (!this->isConnected())
            {
                return false;
            }
            const CCallsign cs(parser.part(1));
            if (cs.isValid())
            {
                this->updateAircraftEnabled(cs, false);
            }
        }
        else if (m_airspace && parser.matchesCommand(".fsd"))
        {
            return m_airspace->parseCommandLine(commandLine, originator);
        }
 
        return false;
    }
 
    void CContextNetwork::sendTextMessages(const CTextMessageList &textMessages)
    {
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO << textMessages;
        }
        m_fsdClient->sendTextMessages(textMessages);
    }
 
    void CContextNetwork::sendFlightPlan(const CFlightPlan &flightPlan)
    {
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO << flightPlan;
        }
        m_fsdClient->sendFlightPlan(flightPlan);
        m_fsdClient->sendClientQueryFlightPlan(this->ownAircraft().getCallsign());
    }
 
    CFlightPlan CContextNetwork::loadFlightPlanFromNetwork(const CCallsign &callsign) const
    {
        if (!this->canUseFsd())
        {
            return {};
        }
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO;
        }
        return m_airspace->loadFlightPlanFromNetwork(callsign);
    }
 
    CUserList CContextNetwork::getUsers() const
    {
        if (!this->canUseAirspaceMonitor())
        {
            return {};
        }
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO;
        }
        return m_airspace->getUsers();
    }
 
    CUserList CContextNetwork::getUsersForCallsigns(const CCallsignSet &callsigns) const
    {
        if (!this->canUseAirspaceMonitor() || callsigns.isEmpty())
        {
            return {};
        }
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO;
        }
        return m_airspace->getUsersForCallsigns(callsigns);
    }
 
    CUser CContextNetwork::getUserForCallsign(const CCallsign &callsign) const
    {
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO;
        }
        CCallsignSet callsigns;
        callsigns.push_back(callsign);
        const CUserList users = this->getUsersForCallsigns(callsigns);
        if (users.isEmpty())
        {
            return {};
        }
        return users[0];
    }
 
    CClientList CContextNetwork::getClients() const
    {
        if (!this->canUseAirspaceMonitor())
        {
            return {};
        }
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO;
        }
        return m_airspace->getClients();
    }
 
    CClientList CContextNetwork::getClientsForCallsigns(const CCallsignSet &callsigns) const
    {
        if (!this->canUseAirspaceMonitor())
        {
            return {};
        }
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO;
        }
        return m_airspace->getClientsForCallsigns(callsigns);
    }
 
    bool CContextNetwork::setOtherClient(const CClient &client)
    {
        if (!this->canUseAirspaceMonitor())
        {
            return false;
        }
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO;
        }
        return m_airspace->setOtherClient(client);
    }
 
    int CContextNetwork::removeClient(const aviation::CCallsign &callsign)
    {
        if (!this->canUseAirspaceMonitor())
        {
            return 0;
        }
        return m_airspace->removeClient(callsign);
    }
 
    bool CContextNetwork::autoAdjustCientGndCapability(const aviation::CAircraftSituation &situation)
    {
        if (!this->canUseAirspaceMonitor())
        {
            return false;
        }
        return m_airspace->autoAdjustCientGndCapability(situation);
    }
 
    bool CContextNetwork::addClientGndCapability(const CCallsign &callsign)
    {
        if (!this->canUseAirspaceMonitor())
        {
            return false;
        }
        return m_airspace->addClientGndCapability(callsign);
    }
 
    bool CContextNetwork::setClientGndCapability(const aviation::CCallsign &callsign, bool supportGndFlag)
    {
        if (!this->canUseAirspaceMonitor())
        {
            return false;
        }
        return m_airspace->setClientGndCapability(callsign, supportGndFlag);
    }
 
    void CContextNetwork::markAsSwiftClient(const CCallsign &callsign) { m_airspace->markAsSwiftClient(callsign); }
 
    CServerList CContextNetwork::getVatsimFsdServers() const
    {
        Q_ASSERT_X(sApp->getWebDataServices(), Q_FUNC_INFO, "Missing data reader");
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO;
        }
        return sApp->getWebDataServices()->getVatsimFsdServers();
    }
 
    void CContextNetwork::onFsdConnectionStatusChanged(const CConnectionStatus &from, const CConnectionStatus &to)
    {
        // if (this->isDebugEnabled()) { CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO << from
        // << to; }
 
        if (to.isDisconnected())
        {
            // make sure airspace is really cleaned up
            Q_ASSERT(m_airspace);
            m_airspace->clear();
        }
 
        // send 1st position
        if (to.isConnected())
        {
            CLogMessage(this).info(u"Connected, own aircraft %1") << this->ownAircraft().getCallsignAsString();
 
            if (m_fsdClient)
            {
                const CServer server = m_fsdClient->getServer();
                emit this->connectedServerChanged(server);
            }
        }
 
        // send as message
        static const QString chgMsg("Connection status changed from '%1' to '%2'");
        CLogMessage(this).info(chgMsg) << from.toQString() << to.toQString();
 
        // send as own signal
        emit this->connectionStatusChanged(from, to);
    }
 
    void CContextNetwork::onReadyForModelMatching(const CSimulatedAircraft &aircraft)
    {
        m_readyForModelMatching.enqueue(aircraft);
    }
 
    void CContextNetwork::emitReadyForMatching()
    {
        if (m_readyForModelMatching.isEmpty())
        {
            return;
        }
        if (!sApp || sApp->isShuttingDown())
        {
            return;
        }
 
        const CSimulatedAircraft aircraft = m_readyForModelMatching.dequeue();
        if (!this->isAircraftInRange(aircraft.getCallsign()))
        {
            return;
        }
        emit this->readyForModelMatching(aircraft);
    }
 
    void CContextNetwork::createRelayMessageToPartnerCallsign(const CTextMessage &textMessage,
                                                              const CCallsign &partnerCallsign,
                                                              CTextMessageList &relayedMessages)
    {
        if (textMessage.isEmpty())
        {
            return;
        }
        if (partnerCallsign.isEmpty())
        {
            return;
        }
        if (textMessage.getSenderCallsign() == partnerCallsign)
        {
            return;
        } // no round trips
 
        CTextMessage modified(textMessage);
        modified.makeRelayedMessage(partnerCallsign);
        relayedMessages.push_back(modified);
    }
 
    void CContextNetwork::xCtxSimulatorRenderRestrictionsChanged(bool restricted, bool enabled, int maxAircraft,
                                                                 const CLength &maxRenderedDistance)
    {
        // mainly passing changed restrictions from simulator to network
        if (!m_airspace)
        {
            return;
        }
        if (!m_airspace->analyzer())
        {
            return;
        }
        m_airspace->analyzer()->setSimulatorRenderRestrictionsChanged(restricted, enabled, maxAircraft,
                                                                      maxRenderedDistance);
    }
 
    void CContextNetwork::xCtxSimulatorStatusChanged(int status)
    {
        const ISimulator::SimulatorStatus simStatus = static_cast<ISimulator::SimulatorStatus>(status);
        if (ISimulator::isAnyConnectedStatus(simStatus))
        {
            const QPointer<CContextSimulator> sim = this->getRuntime()->getCContextSimulator();
            this->setSimulationEnvironmentProvider(sim ? sim->simulator() : nullptr);
            const CSimulatorInfo simInfo = sim ? sim->getSimulatorPluginInfo().getSimulatorInfo() : CSimulatorInfo();
 
            m_simulatorConnected++;
            m_lastConnectedSim = simInfo;
        }
        else
        {
            this->setSimulationEnvironmentProvider(nullptr);
        }
    }
 
    bool CContextNetwork::canUseFsd() const { return sApp && !sApp->isShuttingDown() && m_fsdClient; }
 
    bool CContextNetwork::canUseAirspaceMonitor() const { return sApp && !sApp->isShuttingDown() && m_airspace; }
 
    void CContextNetwork::updateMetars(const CMetarList &metars)
    {
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO;
        }
        CLogMessage(this).info(u"%1 METARs updated") << metars.size();
    }
 
    void CContextNetwork::onChangedAtisReceived(const CCallsign &callsign)
    {
        Q_UNUSED(callsign)
        m_dsAtcStationsOnlineChanged.inputSignal(); // the ATIS data are stored in the station object
    }
 
    void CContextNetwork::onTextMessagesReceived(const CTextMessageList &messages)
    {
        if (messages.isEmpty())
        {
            return;
        }
 
        const CCallsign partnerCallsign = this->getPartnerCallsign();
        const CCallsign ownCallsign = this->ownAircraft().getCallsign();
 
        CTextMessageList textMessages = messages.withRelayedToPrivateMessages();
        CTextMessageList partnerMessages;
 
        if (!partnerCallsign.isEmpty())
        {
            partnerMessages = textMessages.findBySender(partnerCallsign);
            const CTextMessageList relayedSentMessages =
                partnerMessages.findByNotForRecipient(ownCallsign).markedAsSent();
            partnerMessages =
                partnerMessages.findByRecipient(ownCallsign); // really send to me as PM and not a forwared one
 
            // avoid infinite rountrips
            textMessages = textMessages.withRemovedPrivateMessagesFromCallsign(partnerCallsign);
 
            // fake those as sent by myself
            for (const CTextMessage &rsm : relayedSentMessages)
            {
                emit this->textMessageSent(rsm);
            }
        }
 
        // 1) relayed messaged "now look like PMs"
        // 2) all messaged of partner are EXCLUDED
        if (!textMessages.isEmpty())
        {
            emit this->textMessagesReceived(textMessages);
        }
        if (!partnerMessages.isEmpty())
        {
            emit this->textMessagesReceived(partnerMessages);
        }
 
        if (textMessages.containsPrivateMessages())
        {
            const CTextMessageList supMessages(messages.getSupervisorMessages());
            for (const CTextMessage &m : supMessages)
            {
                emit this->supervisorTextMessageReceived(m);
            }
 
            // part to send to partner, "forward/relay" to partner
            if (!partnerCallsign.isEmpty())
            {
                // IMPORTANT: partner messages already received
                CTextMessageList relayedMessages;
                const CTextMessageList privateMessages = messages.getPrivateMessages();
                for (const CTextMessage &m : privateMessages)
                {
                    this->createRelayMessageToPartnerCallsign(m, partnerCallsign, relayedMessages);
                }
 
                if (!relayedMessages.isEmpty())
                {
                    QPointer<CContextNetwork> myself(this);
                    QTimer::singleShot(10, this, [=] {
                        if (myself)
                        {
                            myself->sendTextMessages(relayedMessages);
                        }
                    });
                }
            } // relay to partner
        }
    }
 
    void CContextNetwork::onTextMessageSent(const CTextMessage &message)
    {
        if (message.isEmpty())
        {
            return;
        }
        if (message.isRelayedMessage())
        {
            return;
        }
 
        if (message.isPrivateMessage())
        {
            // forward messages which are NO real PMs tp the partner
            const CCallsign partnerCallsign = this->getPartnerCallsign();
            if (!partnerCallsign.isEmpty() && message.getRecipientCallsign() != partnerCallsign)
            {
                QPointer<CContextNetwork> myself(this);
                CTextMessageList relayedMessages;
                this->createRelayMessageToPartnerCallsign(message, partnerCallsign, relayedMessages);
                if (!relayedMessages.isEmpty())
                {
                    QTimer::singleShot(10, this, [=] {
                        if (myself)
                        {
                            myself->sendTextMessages(relayedMessages);
                        }
                    });
                }
            }
        }
 
        emit this->textMessageSent(message);
    }
 
    CSimulatedAircraft CContextNetwork::ownAircraft() const
    {
        Q_ASSERT(this->getRuntime()); // must never be null
 
        if (!this->getRuntime()->getIContextOwnAircraft())
        {
            return {};
        }
        return this->getRuntime()->getCContextOwnAircraft()->getOwnAircraft();
    }
 
    CCallsign CContextNetwork::getPartnerCallsign() const
    {
        return m_fsdClient ? m_fsdClient->getPresetPartnerCallsign() : CCallsign();
    }
 
    bool CContextNetwork::isValidPartnerCallsign(const CCallsign &ownCallsign, const CCallsign &partnerCallsign)
    {
        if (partnerCallsign.isEmpty())
        {
            return false;
        }
        if (ownCallsign == partnerCallsign)
        {
            return false;
        } // MUST NOT be the same
        return true;
    }
 
    CAtcStationList CContextNetwork::getAtcStationsOnline(bool recalculateDistance) const
    {
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO;
        }
        CAtcStationList stations = m_airspace->getAtcStationsOnline();
        if (!recalculateDistance || !this->getIContextOwnAircraft())
        {
            return stations;
        }
        stations.calculcateAndUpdateRelativeDistanceAndBearing(
            this->getIContextOwnAircraft()->getOwnAircraftSituation());
        return stations;
    }
 
    CAtcStationList CContextNetwork::getClosestAtcStationsOnline(int number) const
    {
        if (!this->getIContextOwnAircraft())
        {
            return {};
        }
        const CAircraftSituation ownSituation = this->getIContextOwnAircraft()->getOwnAircraftSituation();
        const CAtcStationList stations = m_airspace->getAtcStationsOnline().findClosest(number, ownSituation);
        return stations;
    }
 
    CSimulatedAircraftList CContextNetwork::getAircraftInRange() const
    {
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO;
        }
        return m_airspace->getAircraftInRange();
    }
 
    CCallsignSet CContextNetwork::getAircraftInRangeCallsigns() const
    {
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO;
        }
        return m_airspace->getAircraftInRangeCallsigns();
    }
 
    int CContextNetwork::getAircraftInRangeCount() const
    {
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO;
        }
        return m_airspace->getAircraftInRangeCount();
    }
 
    bool CContextNetwork::isAircraftInRange(const CCallsign &callsign) const
    {
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO;
        }
        return m_airspace->isAircraftInRange(callsign);
    }
 
    bool CContextNetwork::isVtolAircraft(const CCallsign &callsign) const
    {
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO;
        }
        return m_airspace->isVtolAircraft(callsign);
    }
 
    CSimulatedAircraft CContextNetwork::getAircraftInRangeForCallsign(const CCallsign &callsign) const
    {
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO << callsign;
        }
        return m_airspace->getAircraftInRangeForCallsign(callsign);
    }
 
    CAircraftModel CContextNetwork::getAircraftInRangeModelForCallsign(const CCallsign &callsign) const
    {
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO << callsign;
        }
        return m_airspace->getAircraftInRangeModelForCallsign(callsign);
    }
 
    CStatusMessageList CContextNetwork::getReverseLookupMessages(const CCallsign &callsign) const
    {
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO << callsign;
        }
        return m_airspace->getReverseLookupMessages(callsign);
    }
 
    ReverseLookupLogging CContextNetwork::isReverseLookupMessagesEnabled() const
    {
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO;
        }
        return m_airspace->isReverseLookupMessagesEnabled();
    }
 
    void CContextNetwork::enableReverseLookupMessages(ReverseLookupLogging enable)
    {
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << enable;
        }
        const ReverseLookupLogging revEnabled = m_airspace->isReverseLookupMessagesEnabled();
        if (revEnabled == enable)
        {
            return;
        }
        m_airspace->enableReverseLookupMessages(enable);
        emit IContext::changedLogOrDebugSettings();
    }
 
    CStatusMessageList CContextNetwork::getAircraftPartsHistory(const CCallsign &callsign) const
    {
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO << callsign;
        }
        return m_airspace->getAircraftPartsHistory(callsign);
    }
 
    CAircraftPartsList CContextNetwork::getRemoteAircraftParts(const CCallsign &callsign) const
    {
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO << callsign;
        }
        return m_airspace->remoteAircraftParts(callsign);
    }
 
    int CContextNetwork::getRemoteAircraftSupportingPartsCount() const
    {
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO;
        }
        return m_airspace->getRemoteAircraftSupportingPartsCount();
    }
 
    bool CContextNetwork::isAircraftPartsHistoryEnabled() const
    {
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO;
        }
        return m_airspace->isAircraftPartsHistoryEnabled();
    }
 
    void CContextNetwork::enableAircraftPartsHistory(bool enabled)
    {
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << enabled;
        }
        m_airspace->enableAircraftPartsHistory(enabled);
        emit IContext::changedLogOrDebugSettings();
    }
 
    int CContextNetwork::aircraftSituationsAdded() const
    {
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO;
        }
        return m_airspace->aircraftSituationsAdded();
    }
 
    int CContextNetwork::aircraftPartsAdded() const
    {
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO;
        }
        return m_airspace->aircraftPartsAdded();
    }
 
    qint64 CContextNetwork::situationsLastModified(const CCallsign &callsign) const
    {
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO;
        }
        return m_airspace->situationsLastModified(callsign);
    }
 
    qint64 CContextNetwork::partsLastModified(const CCallsign &callsign) const
    {
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO;
        }
        return m_airspace->partsLastModified(callsign);
    }
 
    QString CContextNetwork::getNetworkStatistics(bool reset, const QString &separator)
    {
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO;
        }
        if (!m_fsdClient)
        {
            return {};
        }
        return m_fsdClient->getNetworkStatisticsAsText(reset, separator);
    }
 
    bool CContextNetwork::setNetworkStatisticsEnable(bool enabled)
    {
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO;
        }
        if (!m_fsdClient)
        {
            return false;
        }
        return m_fsdClient->setStatisticsEnable(enabled);
    }
 
    bool CContextNetwork::testAddAltitudeOffset(const CCallsign &callsign, const CLength &offset)
    {
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO;
        }
        return m_airspace->testAddAltitudeOffset(callsign, offset);
    }
 
    QStringList CContextNetwork::getNetworkPresetValues() const
    {
        if (!m_fsdClient)
        {
            return {};
        }
        return m_fsdClient->getPresetValues();
    }
 
    CAtcStation CContextNetwork::getOnlineStationForCallsign(const CCallsign &callsign) const
    {
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO << callsign;
        }
        return m_airspace->getAtcStationsOnline().findFirstByCallsign(callsign);
    }
 
    CAtcStationList CContextNetwork::getOnlineStationsForFrequency(const CFrequency &frequency) const
    {
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO;
        }
        return m_airspace->getAtcStationsOnline().findIfFrequencyIsWithinSpacing(frequency);
    }
 
    bool CContextNetwork::isOnlineStation(const CCallsign &callsign) const
    {
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO << callsign;
        }
        return m_airspace->getAtcStationsOnline().containsCallsign(callsign);
    }
 
    void CContextNetwork::requestAircraftDataUpdates()
    {
        if (!canUseAirspaceMonitor())
        {
            return;
        }
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO;
        }
        if (!this->isConnected())
        {
            return;
        }
 
        m_airspace->requestAircraftDataUpdates();
        if (m_requestAircraftDataTimer)
        {
            m_requestAircraftDataTimer->start();
        } // restart
    }
 
    void CContextNetwork::requestAtisUpdates()
    {
        if (!canUseAirspaceMonitor())
        {
            return;
        }
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO;
        }
        if (!this->isConnected())
        {
            return;
        }
 
        m_airspace->requestAtisUpdates();
        if (m_requestAtisTimer)
        {
            m_requestAtisTimer->start();
        } // restart
    }
 
    bool CContextNetwork::updateAircraftEnabled(const CCallsign &callsign, bool enabledForRendering)
    {
        if (!canUseAirspaceMonitor())
        {
            return false;
        }
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO << callsign << enabledForRendering;
        }
        const bool c = m_airspace->updateAircraftEnabled(callsign, enabledForRendering);
        if (c)
        {
            const CSimulatedAircraft aircraft(this->getAircraftInRangeForCallsign(callsign));
            Q_ASSERT_X(!aircraft.getCallsign().isEmpty(), Q_FUNC_INFO, "missing callsign");
            emit this->changedRemoteAircraftEnabled(aircraft);
        }
        return c;
    }
 
    bool CContextNetwork::setAircraftEnabledFlag(const CCallsign &callsign, bool enabledForRendering)
    {
        if (!canUseAirspaceMonitor())
        {
            return false;
        }
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO << callsign;
        }
        return m_airspace->setAircraftEnabledFlag(callsign, enabledForRendering);
    }
 
    bool CContextNetwork::updateAircraftModel(const CCallsign &callsign, const CAircraftModel &model,
                                              const CIdentifier &originator)
    {
        if (!canUseAirspaceMonitor())
        {
            return false;
        }
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO << callsign << model;
        }
        const bool c = m_airspace->updateAircraftModel(callsign, model, originator);
        if (c)
        {
            const CSimulatedAircraft aircraft(this->getAircraftInRangeForCallsign(callsign));
            Q_ASSERT_X(!aircraft.getCallsign().isEmpty(), Q_FUNC_INFO, "missing callsign");
            emit this->changedRemoteAircraftModel(aircraft, originator); // update aircraft model
        }
        return c;
    }
 
    bool CContextNetwork::updateAircraftNetworkModel(const CCallsign &callsign, const CAircraftModel &model,
                                                     const CIdentifier &originator)
    {
        if (!canUseAirspaceMonitor())
        {
            return false;
        }
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO << callsign << model;
        }
        const bool c = m_airspace->updateAircraftNetworkModel(callsign, model, originator);
        if (c)
        {
            const CSimulatedAircraft aircraft(this->getAircraftInRangeForCallsign(callsign));
            emit this->changedRemoteAircraftModel(aircraft, originator); // updated network model
        }
        return c;
    }
 
    bool CContextNetwork::updateFastPositionEnabled(const CCallsign &callsign, bool enableFastPositonUpdates)
    {
        if (!canUseAirspaceMonitor())
        {
            return false;
        }
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug()
                << Q_FUNC_INFO << callsign << enableFastPositonUpdates;
        }
        const bool c = m_airspace->updateFastPositionEnabled(callsign, enableFastPositonUpdates);
        if (c)
        {
            const CSimulatedAircraft aircraft(this->getAircraftInRangeForCallsign(callsign));
            CLogMessage(this).info(u"Callsign '%1' fast positions '%2'")
                << aircraft.getCallsign() << swift::misc::boolToOnOff(aircraft.fastPositionUpdates());
            emit this->changedFastPositionUpdates(aircraft);
        }
        return c;
    }
 
    bool CContextNetwork::updateAircraftSupportingGndFLag(const CCallsign &callsign, bool supportGndFlag)
    {
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO << callsign << supportGndFlag;
        }
        const bool c = m_airspace->setClientGndCapability(callsign, supportGndFlag);
        if (c)
        {
            const CSimulatedAircraft aircraft(this->getAircraftInRangeForCallsign(callsign));
            CLogMessage(this).info(u"Callsign '%1' set gnd.capability: %2")
                << aircraft.getCallsign() << boolToOnOff(aircraft.isSupportingGndFlag());
            emit this->changedGndFlagCapability(aircraft);
        }
        return c;
    }
 
    bool CContextNetwork::updateCG(const aviation::CCallsign &callsign, const CLength &cg)
    {
        if (!canUseAirspaceMonitor())
        {
            return false;
        }
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug()
                << Q_FUNC_INFO << callsign << cg.valueRoundedWithUnit(1);
        }
        const bool c = m_airspace->updateCG(callsign, cg);
        return c;
    }
 
    CCallsignSet CContextNetwork::updateCGForModel(const QString &modelString, const CLength &cg)
    {
        if (!canUseAirspaceMonitor())
        {
            return {};
        }
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug()
                << Q_FUNC_INFO << modelString << cg.valueRoundedWithUnit(1);
        }
        const CCallsignSet set = m_airspace->updateCGForModel(modelString, cg);
        return set;
    }
 
    bool CContextNetwork::updateCGAndModelString(const CCallsign &callsign, const CLength &cg,
                                                 const QString &modelString)
    {
        if (!canUseAirspaceMonitor())
        {
            return false;
        }
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug()
                << Q_FUNC_INFO << callsign << cg.valueRoundedWithUnit(1) << modelString;
        }
        const bool c = m_airspace->updateCGAndModelString(callsign, cg, modelString);
        return c;
    }
 
    bool CContextNetwork::updateAircraftRendered(const CCallsign &callsign, bool rendered)
    {
        if (!canUseAirspaceMonitor())
        {
            return false;
        }
        const bool c = m_airspace->updateAircraftRendered(callsign, rendered);
        return c;
    }
 
    int CContextNetwork::updateMultipleAircraftRendered(const CCallsignSet &callsigns, bool rendered)
    {
        if (!canUseAirspaceMonitor())
        {
            return 0;
        }
        const int c = m_airspace->updateMultipleAircraftRendered(callsigns, rendered);
        return c;
    }
 
    int CContextNetwork::updateMultipleAircraftEnabled(const CCallsignSet &callsigns, bool enabled)
    {
        if (!canUseAirspaceMonitor())
        {
            return 0;
        }
        const int c = m_airspace->updateMultipleAircraftEnabled(callsigns, enabled);
        return c;
    }
 
    int CContextNetwork::updateAircraftGroundElevation(const CCallsign &callsign, const CElevationPlane &elevation,
                                                       CAircraftSituation::GndElevationInfo info,
                                                       bool *setForOnGroundPosition)
    {
        if (!canUseAirspaceMonitor())
        {
            return 0;
        }
        return m_airspace->updateAircraftGroundElevation(callsign, elevation, info, setForOnGroundPosition);
    }
 
    void CContextNetwork::updateMarkAllAsNotRendered()
    {
        if (!canUseAirspaceMonitor())
        {
            return;
        }
        m_airspace->updateMarkAllAsNotRendered();
    }
 
    CLength CContextNetwork::getCGFromDB(const CCallsign &callsign) const
    {
        if (!canUseAirspaceMonitor())
        {
            return {};
        }
        return m_airspace->getCGFromDB(callsign);
    }
 
    CLength CContextNetwork::getCGFromDB(const QString &modelString) const
    {
        if (!canUseAirspaceMonitor())
        {
            return {};
        }
        return m_airspace->getCGFromDB(modelString);
    }
 
    void CContextNetwork::rememberCGFromDB(const CLength &cgFromDB, const CCallsign &callsign)
    {
        if (!canUseAirspaceMonitor())
        {
            return;
        }
        m_airspace->rememberCGFromDB(cgFromDB, callsign);
    }
 
    void CContextNetwork::rememberCGFromDB(const CLength &cgFromDB, const QString &modelString)
    {
        if (!canUseAirspaceMonitor())
        {
            return;
        }
        m_airspace->rememberCGFromDB(cgFromDB, modelString);
    }
 
    int CContextNetwork::reInitializeAllAircraft()
    {
        if (!canUseAirspaceMonitor())
        {
            return 0;
        }
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO;
        }
        return m_airspace->reInitializeAllAircraft();
    }
 
    CAirspaceAircraftSnapshot CContextNetwork::getLatestAirspaceAircraftSnapshot() const
    {
        if (!canUseAirspaceMonitor())
        {
            return {};
        }
        return m_airspace->getLatestAirspaceAircraftSnapshot();
    }
 
    CElevationPlane CContextNetwork::averageElevationOfNonMovingAircraft(const CAircraftSituation &reference,
                                                                         const CLength &range, int minValues,
                                                                         int sufficientValues) const
    {
        if (!canUseAirspaceMonitor())
        {
            return {};
        }
        return m_airspace->averageElevationOfNonMovingAircraft(reference, range, minValues, sufficientValues);
    }
 
    void CContextNetwork::setClients(const CClientList &clients) { m_airspace->setClients(clients); }
 
    void CContextNetwork::clearClients() { m_airspace->clearClients(); }
 
    CClient CContextNetwork::getClientOrDefaultForCallsign(const aviation::CCallsign &callsign) const
    {
        if (!canUseAirspaceMonitor())
        {
            return {};
        }
        return m_airspace->getClientOrDefaultForCallsign(callsign);
    }
 
    bool CContextNetwork::hasClientInfo(const aviation::CCallsign &callsign) const
    {
        if (!canUseAirspaceMonitor())
        {
            return false;
        }
        return m_airspace->hasClientInfo(callsign);
    }
 
    bool CContextNetwork::addNewClient(const CClient &client)
    {
        if (!canUseAirspaceMonitor())
        {
            return false;
        }
        return m_airspace->addNewClient(client);
    }
 
    int CContextNetwork::updateOrAddClient(const aviation::CCallsign &callsign, const CPropertyIndexVariantMap &vm,
                                           bool skipEqualValues)
    {
        if (!canUseAirspaceMonitor())
        {
            return 0;
        }
        return m_airspace->updateOrAddClient(callsign, vm, skipEqualValues);
    }
 
    void CContextNetwork::setFastPositionEnabledCallsigns(CCallsignSet &callsigns)
    {
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO << callsigns;
        }
        Q_ASSERT(m_fsdClient);
        m_fsdClient->setInterimPositionReceivers(callsigns);
    }
 
    CCallsignSet CContextNetwork::getFastPositionEnabledCallsigns() const
    {
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO;
        }
        Q_ASSERT(m_fsdClient);
        return m_fsdClient->getInterimPositionReceivers();
    }
 
    void CContextNetwork::testRequestAircraftConfig(const CCallsign &callsign)
    {
        if (!this->canUseFsd())
        {
            return;
        }
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO << callsign;
        }
        m_fsdClient->sendClientQueryAircraftConfig(callsign);
    }
 
    void CContextNetwork::testCreateDummyOnlineAtcStations(int number)
    {
        if (!this->canUseAirspaceMonitor())
        {
            return;
        }
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO << number;
        }
        m_airspace->testCreateDummyOnlineAtcStations(number);
    }
 
    void CContextNetwork::testAddAircraftParts(const CCallsign &callsign, const CAircraftParts &parts, bool incremental)
    {
        if (!this->canUseAirspaceMonitor())
        {
            return;
        }
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO << parts << incremental;
        }
        m_airspace->testAddAircraftParts(callsign, parts, incremental);
    }
 
    void CContextNetwork::testReceivedAtisMessage(const CCallsign &callsign, const CInformationMessage &msg)
    {
        if (!this->canUseFsd())
        {
            return;
        }
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO << callsign.asString();
        }
        emit this->fsdClient()->atisReplyReceived(callsign, msg);
    }
 
    void CContextNetwork::testReceivedTextMessages(const CTextMessageList &textMessages)
    {
        if (!this->canUseFsd())
        {
            return;
        }
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO << textMessages.toQString();
        }
        emit this->fsdClient()->textMessagesReceived(textMessages);
    }
 
    CMetar CContextNetwork::getMetarForAirport(const CAirportIcaoCode &airportIcaoCode) const
    {
        if (this->isDebugEnabled())
        {
            CLogMessage(this, CLogCategories::contextSlot()).debug() << Q_FUNC_INFO << airportIcaoCode;
        }
        if (!sApp || !sApp->getWebDataServices())
        {
            return {};
        }
        return sApp->getWebDataServices()->getMetarForAirport(airportIcaoCode);
    }
 
    QMetaObject::Connection
    CContextNetwork::connectRawFsdMessageSignal(QObject *receiver, RawFsdMessageReceivedSlot rawFsdMessageReceivedSlot)
    {
        Q_ASSERT_X(receiver, Q_FUNC_INFO, "Missing receiver");
 
        // bind does not allow to define connection type, so we use receiver as workaround
        const QMetaObject::Connection uc; // unconnected
        const QMetaObject::Connection c = rawFsdMessageReceivedSlot ? connect(m_fsdClient, &CFSDClient::rawFsdMessage,
                                                                              receiver, rawFsdMessageReceivedSlot) :
                                                                      uc;
        Q_ASSERT_X(c || !rawFsdMessageReceivedSlot, Q_FUNC_INFO, "connect failed");
        return c;
    }
} // namespace swift::core::context