/* Copyright (C) 2017
 * swift Project Community / Contributors
 *
 * This file is part of swift project. It is subject to the license terms in the LICENSE file found in the top-level
 * directory of this distribution. No part of swift project, including this file, may be copied, modified, propagated,
 * or distributed except according to the terms contained in the LICENSE file.
 */

#if defined(SWIFT_USING_FSUIPC32) || defined(SWIFT_USING_FSUIPC64)

#ifndef NOMINMAX
#define NOMINMAX
#endif

#include "fsuipc.h"
#include <Windows.h>
// bug in FSUIPC_User.h, windows.h not included, so we have to import it first

#ifdef SWIFT_USING_FSUIPC32
extern "C" {
#include "../fsuipc32/IPCuser.h"
#include "../fsuipc32/FSUIPC_User.h"
#include "../fsuipc32/NewWeather.h"
}
#elif SWIFT_USING_FSUIPC64
extern "C" {
#include "../fsuipc64/IPCuser64.h"
#include "../fsuipc64/FSUIPC_User64.h"
#include "../fsuipc64/NewWeather.h"
}
#endif

#include "blackmisc/simulation/fscommon/bcdconversions.h"
#include "blackmisc/threadutils.h"
#include "blackmisc/logmessage.h"

#include <QDebug>
#include <QLatin1Char>
#include <QDateTime>

using namespace BlackMisc;
using namespace BlackMisc::Simulation::FsCommon;
using namespace BlackMisc::Aviation;
using namespace BlackMisc::Network;
using namespace BlackMisc::Geo;
using namespace BlackMisc::Simulation;
using namespace BlackMisc::PhysicalQuantities;
using namespace BlackMisc::Weather;

namespace BlackSimPlugin
{
    namespace FsCommon
    {
        //! Fsuipc weather message
        struct CFsuipc::FsuipcWeatherMessage
        {
            FsuipcWeatherMessage() = default;
            FsuipcWeatherMessage(unsigned int offset, const QByteArray &data, int leftTrials);
            int m_offset = 0;
            QByteArray m_messageData;
            int m_leftTrials = 0;
        };

        CFsuipc::CFsuipc(QObject *parent) : QObject(parent)
        {
            startTimer(100);
        }

        CFsuipc::~CFsuipc()
        {
            this->close();
        }

        bool CFsuipc::open(bool force)
        {
            Q_ASSERT_X(CThreadUtils::isCurrentThreadObjectThread(this), Q_FUNC_INFO, "Open not threadsafe");
            DWORD dwResult;
            m_lastErrorMessage = "";
            m_lastErrorIndex = 0;
            if (!force && m_opened) { return m_opened; } // already connected

            if (FSUIPC_Open(SIM_ANY, &dwResult))
            {
                m_opened = true; // temp status
                m_openCount++;

                if (this->isOpen())
                {
                    const int simIndex = static_cast<int>(FSUIPC_FS_Version);
                    const QString sim = CFsuipc::simulator(simIndex);
                    QString ver = QStringLiteral("%1.%2.%3.%4%5")
                                  .arg(QLatin1Char(48 + (0x0f & (FSUIPC_Version >> 28))))
                                  .arg(QLatin1Char(48 + (0x0f & (FSUIPC_Version >> 24))))
                                  .arg(QLatin1Char(48 + (0x0f & (FSUIPC_Version >> 20))))
                                  .arg(QLatin1Char(48 + (0x0f & (FSUIPC_Version >> 16))))
                                  .arg((FSUIPC_Version & 0xffff) ? QString(QLatin1Char('a' + static_cast<char>(FSUIPC_Version & 0xff) - 1)) : "");
                    m_fsuipcVersion = QStringLiteral("FSUIPC %1 (%2)").arg(ver, sim);
                    CLogMessage(this).info(u"FSUIPC connected: %1") << m_fsuipcVersion;
                }
                else
                {
                    CLogMessage(this).warning(u"FSUIPC opened, but verification failed");
                    m_opened = false;
                    FSUIPC_Close(); // under any circumstances close
                }
            }
            else
            {
                const int index = static_cast<int>(dwResult);
                m_lastErrorIndex = index;
                m_lastErrorMessage = CFsuipc::errorMessages().at(index);
                CLogMessage(this).warning(u"FSUIPC not connected: %1") << m_lastErrorMessage;
                m_opened = false;
                FSUIPC_Close(); // under any circumstances close
            }

            return m_opened;
        }

        void CFsuipc::close()
        {
            Q_ASSERT_X(CThreadUtils::isCurrentThreadObjectThread(this), Q_FUNC_INFO, "Open not threadsafe");
            if (m_opened)
            {
                CLogMessage(this).info(u"Closing FSUIPC: %1") << m_fsuipcVersion;
            }
            FSUIPC_Close(); // Closing when it wasn't open is okay, so this is safe here
            m_closeCount++;
            m_opened = false;
        }

        bool CFsuipc::isOpened() const
        {
            return m_opened;
        }

        bool CFsuipc::isOpen() const
        {
            if (!this->isOpened()) { return false; }

            // test read
            DWORD dwResult;
            char localFsTimeRaw[3];
            if (FSUIPC_Read(0x0238, 3, localFsTimeRaw, &dwResult) && FSUIPC_Process(&dwResult))
            {
                return dwResult == 0;
            }
            return false;
        }

        bool CFsuipc::write(const CSimulatedAircraft &aircraft)
        {
            Q_ASSERT_X(CThreadUtils::isCurrentThreadObjectThread(this), Q_FUNC_INFO, "Open not threadsafe");
            if (!this->isOpened()) { return false; }

            quint16 com1ActiveRaw = aircraft.getCom1System().getFrequencyActive().value(CFrequencyUnit::MHz()) * 100;
            quint16 com2ActiveRaw = aircraft.getCom2System().getFrequencyActive().value(CFrequencyUnit::MHz()) * 100;
            quint16 com1StandbyRaw = aircraft.getCom1System().getFrequencyStandby().value(CFrequencyUnit::MHz()) * 100;
            quint16 com2StandbyRaw = aircraft.getCom2System().getFrequencyStandby().value(CFrequencyUnit::MHz()) * 100;
            com1ActiveRaw = CBcdConversions::dec2Bcd(com1ActiveRaw - 10000);
            com2ActiveRaw = CBcdConversions::dec2Bcd(com2ActiveRaw - 10000);
            com1StandbyRaw = CBcdConversions::dec2Bcd(com1StandbyRaw - 10000);
            com2StandbyRaw = CBcdConversions::dec2Bcd(com2StandbyRaw - 10000);
            quint16 transponderCodeRaw = static_cast<quint16>(aircraft.getTransponderCode());

            transponderCodeRaw = CBcdConversions::dec2Bcd(transponderCodeRaw);

            DWORD dwResult = 0;

            bool ok =
                FSUIPC_Write(0x034e, 2, &com1ActiveRaw,  &dwResult) &&
                FSUIPC_Write(0x3118, 2, &com2ActiveRaw, &dwResult) &&
                FSUIPC_Write(0x311a, 2, &com1StandbyRaw, &dwResult) &&
                FSUIPC_Write(0x311c, 2, &com2StandbyRaw, &dwResult) &&
                FSUIPC_Write(0x0354, 2, &transponderCodeRaw, &dwResult);
            if (ok) { FSUIPC_Process(&dwResult); }

            ok = ok && write(aircraft.getTransponder());

            return ok && dwResult == 0;
        }

        bool CFsuipc::write(const CTransponder &xpdr)
        {
            Q_ASSERT_X(CThreadUtils::isCurrentThreadObjectThread(this), Q_FUNC_INFO, "Open not threadsafe");
            if (!this->isOpened()) { return false; }

            // should be the same as writing via SimConnect data area
            DWORD dwResult;
            byte xpdrModeSb3Raw  = xpdr.isInStandby()   ? 1U : 0U;
            byte xpdrIdentSb3Raw = xpdr.isIdentifying() ? 1U : 0U;
            const bool ok =
                FSUIPC_Write(0x7b91, 1, &xpdrModeSb3Raw,  &dwResult) &&
                FSUIPC_Write(0x7b93, 1, &xpdrIdentSb3Raw, &dwResult);
            if (ok) { FSUIPC_Process(&dwResult); }
            return ok && dwResult == 0;
        }

        bool CFsuipc::write(const CWeatherGrid &weatherGrid)
        {
            Q_ASSERT_X(CThreadUtils::isCurrentThreadObjectThread(this), Q_FUNC_INFO, "Open not threadsafe");
            if (!this->isOpened()) { return false; }

            this->clearAllWeather();
            CGridPoint gridPoint = weatherGrid.front();

            NewWeather nw;
            // Clear new weather
            nw.uCommand = NW_SET;
            nw.uFlags = 0;
            nw.ulSignature = 0;
            nw.uDynamics = 0;
            for (std::size_t i = 0; i < sizeof(nw.uSpare) / sizeof(nw.uSpare[0]); i++) { nw.uSpare[i] = 0; }

            nw.dLatitude = 0.0;
            nw.dLongitude = 0.0;
            nw.nElevation = 0;
            nw.ulTimeStamp = 0;
            nw.nTempCtr = 0;
            nw.nWindsCtr = 0;
            nw.nCloudsCtr = 0;
            nw.nElevation = 0; // metres * 65536;
            nw.nUpperVisCtr = 0;

            // todo: Take station from weather grid
            memcpy(nw.chICAO, "GLOB", 4);

            CVisibilityLayerList visibilityLayers = gridPoint.getVisibilityLayers();
            visibilityLayers.sortBy(&CVisibilityLayer::getBase);
            auto surfaceVisibility = visibilityLayers.frontOrDefault();
            NewVis vis;
            vis.LowerAlt = static_cast<short>(surfaceVisibility.getBase().valueInteger(CLengthUnit::m()));
            vis.UpperAlt = static_cast<ushort>(surfaceVisibility.getTop().valueInteger(CLengthUnit::m()));
            // Range is measured in: 1/100ths sm
            vis.Range = static_cast<ushort>(surfaceVisibility.getVisibility().value(CLengthUnit::SM()) * 100);
            vis.Spare = 0;
            nw.Vis = vis;

            for (const auto &visibilityLayer : visibilityLayers)
            {
                vis.LowerAlt = static_cast<short>(visibilityLayer.getBase().valueInteger(CLengthUnit::m()));
                vis.UpperAlt = static_cast<ushort>(visibilityLayer.getTop().valueInteger(CLengthUnit::m()));
                vis.Range    = static_cast<ushort>(visibilityLayer.getVisibility().value(CLengthUnit::SM()) * 100);
                vis.Spare = 0;
                nw.UpperVis[nw.nUpperVisCtr++] = vis;
            }

            CTemperatureLayerList temperatureLayers = gridPoint.getTemperatureLayers();
            temperatureLayers.sortBy(&CTemperatureLayer::getLevel);
            for (const auto &temperatureLayer : temperatureLayers)
            {
                NewTemp temp;
                temp.Alt = static_cast<ushort>(temperatureLayer.getLevel().valueInteger(CLengthUnit::m()));
                temp.Day = static_cast<short>(temperatureLayer.getTemperature().valueInteger(CTemperatureUnit::C()));
                temp.DayNightVar = 3;
                temp.DewPoint = static_cast<short>(temperatureLayer.getDewPoint().value(CTemperatureUnit::C()));
                nw.Temp[nw.nTempCtr++] = temp;
            }

            CCloudLayerList cloudLayers = gridPoint.getCloudLayers();
            cloudLayers.sortBy(&CCloudLayer::getBase);
            for (const auto &cloudLayer : cloudLayers)
            {
                NewCloud cloud;
                switch (cloudLayer.getCoverage())
                {
                case CCloudLayer::None:      cloud.Coverage = 0; break;
                case CCloudLayer::Few:       cloud.Coverage = 2; break;
                case CCloudLayer::Scattered: cloud.Coverage = 4; break;
                case CCloudLayer::Broken:    cloud.Coverage = 6; break;
                case CCloudLayer::Overcast:  cloud.Coverage = 8; break;
                default:                     cloud.Coverage = 0; break;
                }

                cloud.Deviation = 0;
                cloud.Icing = 0;
                cloud.LowerAlt = static_cast<ushort>(cloudLayer.getBase().valueInteger(CLengthUnit::m()));
                cloud.PrecipBase = 0;

                // Light rain - when the precipitation rate is < 2.5 mm (0.098 in) per hour
                // Moderate rain - when the precipitation rate is between 2.5 mm (0.098 in) - 7.6 mm (0.30 in) or 10 mm (0.39 in) per hour
                // Heavy rain - when the precipitation rate is > 7.6 mm (0.30 in) per hour, or between 10 mm (0.39 in) and 50 mm (2.0 in) per hour
                // Violent rain - when the precipitation rate is > 50 mm (2.0 in) per hour

                cloud.PrecipRate = 2 * static_cast<unsigned char>(cloudLayer.getPrecipitationRate());
                cloud.PrecipType = static_cast<unsigned char>(cloudLayer.getPrecipitation());
                cloud.TopShape = 0;
                cloud.Turbulence = 0;

                switch (cloudLayer.getClouds())
                {
                case CCloudLayer::NoClouds: cloud.Type = 0; break;
                case CCloudLayer::Cirrus: cloud.Type = 1; break;
                case CCloudLayer::Stratus: cloud.Type = 8; break;
                case CCloudLayer::Cumulus: cloud.Type = 9; break;
                case CCloudLayer::Thunderstorm: cloud.Type = 10; break;
                default: cloud.Type = 0;
                }

                cloud.UpperAlt = static_cast<ushort>(cloudLayer.getTop().valueInteger(CLengthUnit::m()));
                nw.Cloud[nw.nCloudsCtr++] = cloud;
            }

            CWindLayerList windLayers = gridPoint.getWindLayers();
            windLayers.sortBy(&CWindLayer::getLevel);
            for (const auto &windLayer : as_const(windLayers))
            {
                NewWind wind;
                wind.Direction = static_cast<ushort>(windLayer.getDirection().value(CAngleUnit::deg()) * 65536 / 360.0);
                wind.GapAbove = 0;
                wind.Gust = static_cast<ushort>(windLayer.getGustSpeed().valueInteger(CSpeedUnit::kts()));
                wind.Shear = 0;
                wind.Speed = static_cast<ushort>(windLayer.getSpeed().valueInteger(CSpeedUnit::kts()));
                wind.SpeedFract = 0;
                wind.Turbulence = 0;
                wind.UpperAlt = static_cast<ushort>(windLayer.getLevel().valueInteger(CLengthUnit::m()));
                wind.Variance = 0;
                nw.Wind[nw.nWindsCtr++] = wind;
            }

            NewPress press;
            press.Drift = 0;
            // Pressure is measured in: 16 x mb
            press.Pressure = static_cast<ushort>(gridPoint.getPressureAtMsl().value(CPressureUnit::mbar()) * 16);
            nw.Press = press;

            // writing will take place in
            QByteArray weatherData(reinterpret_cast<const char *>(&nw), sizeof(NewWeather));
            m_weatherMessageQueue.append(FsuipcWeatherMessage(0xC800, weatherData, 5));
            return true;
        }

        bool CFsuipc::setSimulatorTime(int hour, int minute)
        {
            Q_ASSERT_X(CThreadUtils::isCurrentThreadObjectThread(this), Q_FUNC_INFO, "Open not threadsafe");
            if (!this->isOpened()) { return false; }

            // should be the same as writing via SimConnect data area
            DWORD dwResult;
            quint8 hourRaw = hour;
            quint8 minuteRaw = minute;

            const bool ok =
                FSUIPC_Write(0x023b, 1, &hourRaw,  &dwResult) &&
                FSUIPC_Write(0x023c, 1, &minuteRaw, &dwResult);
            if (ok) { FSUIPC_Process(&dwResult); }
            return ok && dwResult == 0;
        }

        QString CFsuipc::getVersion() const
        {
            return m_fsuipcVersion;
        }

        bool CFsuipc::read(CSimulatedAircraft &aircraft, bool cockpit, bool situation, bool aircraftParts)
        {
            Q_ASSERT_X(CThreadUtils::isCurrentThreadObjectThread(this), Q_FUNC_INFO, "Open not threadsafe");
            DWORD dwResult = 0;
            char localFsTimeRaw[3];
            char modelNameRaw[256];
            qint16 com1ActiveRaw = 0, com2ActiveRaw = 0, com1StandbyRaw = 0, com2StandbyRaw = 0;
            qint16 transponderCodeRaw = 0;
            byte xpdrModeSb3Raw = 1, xpdrIdentSb3Raw = 1;
            qint32 groundspeedRaw = 0, pitchRaw = 0, bankRaw = 0, headingRaw = 0;
            qint64 altitudeRaw = 0;
            double pressureAltitudeRaw = 0; // 34B0
            qint32 groundAltitudeRaw = 0;
            qint64 latitudeRaw = 0, longitudeRaw = 0;
            qint16 lightsRaw = 0;
            qint16 onGroundRaw = 0;
            qint32 flapsControlRaw = 0, gearControlRaw = 0, spoilersControlRaw = 0;
            qint16 numberOfEngines = 0;
            qint16 engine1CombustionFlag = 0, engine2CombustionFlag = 0, engine3CombustionFlag = 0, engine4CombustionFlag = 0;

            // http://www.projectmagenta.com/all-fsuipc-offsets/
            // https://www.ivao.aero/softdev/ivap/fsuipc_sdk.asp
            // http://squawkbox.ca/doc/sdk/fsuipc.php

            if (!this->isOpened()) { return false; }
            if (!(aircraftParts || situation || cockpit)) { return false; }

            bool read = false;
            bool cockpitN = !cockpit;
            bool situationN = !situation;
            bool aircraftPartsN = !aircraftParts;

            //! \todo KB 2018-11 BUG fix for broken connection, needs to go as soon as issue is fixed
            //! Seems to be fixed with
            //! a) https://dev.swift-project.org/T471
            //! b) https://dev.swift-project.org/T444
            //! Remove after 2019-03 if issue is resolved
            if (!(FSUIPC_Read(0x0238, 3, localFsTimeRaw, &dwResult) && FSUIPC_Process(&dwResult)))
            {
                FSUIPC_Close();
                FSUIPC_Open(SIM_ANY, &dwResult);
                m_closeCount++;
                m_openCount++;
                if (m_openCount < 10)
                {
                    CLogMessage(this).warning(u"Used FSUIPC open/close workaround");
                }
            }

            if (
                FSUIPC_Read(0x0238, 3, localFsTimeRaw, &dwResult) &&

                // COM settings
                (cockpitN || FSUIPC_Read(0x034e, 2, &com1ActiveRaw,  &dwResult)) &&
                (cockpitN || FSUIPC_Read(0x3118, 2, &com2ActiveRaw,  &dwResult)) &&
                (cockpitN || FSUIPC_Read(0x311a, 2, &com1StandbyRaw, &dwResult)) &&
                (cockpitN || FSUIPC_Read(0x311c, 2, &com2StandbyRaw, &dwResult)) &&
                (cockpitN || FSUIPC_Read(0x0354, 2, &transponderCodeRaw, &dwResult)) &&

                // COM Settings, transponder, SB3
                (cockpitN || FSUIPC_Read(0x7b91, 1, &xpdrModeSb3Raw,  &dwResult)) &&
                (cockpitN || FSUIPC_Read(0x7b93, 1, &xpdrIdentSb3Raw, &dwResult)) &&

                // Speeds, situation
                (situationN || FSUIPC_Read(0x02b4, 4, &groundspeedRaw, &dwResult)) &&
                (situationN || FSUIPC_Read(0x0578, 4, &pitchRaw, &dwResult)) &&
                (situationN || FSUIPC_Read(0x057c, 4, &bankRaw,  &dwResult)) &&
                (situationN || FSUIPC_Read(0x0580, 4, &headingRaw,  &dwResult)) &&
                (situationN || FSUIPC_Read(0x0570, 8, &altitudeRaw, &dwResult)) &&

                // Position
                (situationN || FSUIPC_Read(0x0560, 8, &latitudeRaw,  &dwResult)) &&
                (situationN || FSUIPC_Read(0x0568, 8, &longitudeRaw, &dwResult)) &&
                (situationN || FSUIPC_Read(0x0020, 4, &groundAltitudeRaw,   &dwResult)) &&
                (situationN || FSUIPC_Read(0x34B0, 8, &pressureAltitudeRaw, &dwResult)) &&

                // model name
                FSUIPC_Read(0x3d00, 256, &modelNameRaw, &dwResult) &&

                // aircraft parts
                (aircraftPartsN || FSUIPC_Read(0x0D0C, 2, &lightsRaw,   &dwResult)) &&
                (aircraftPartsN || FSUIPC_Read(0x0366, 2, &onGroundRaw, &dwResult)) &&
                (aircraftPartsN || FSUIPC_Read(0x0BDC, 4, &flapsControlRaw, &dwResult)) &&
                (aircraftPartsN || FSUIPC_Read(0x0BE8, 4, &gearControlRaw,  &dwResult)) &&
                (aircraftPartsN || FSUIPC_Read(0x0BD0, 4, &spoilersControlRaw, &dwResult)) &&

                // engines
                (aircraftPartsN || FSUIPC_Read(0x0AEC, 2, &numberOfEngines, &dwResult)) &&
                (aircraftPartsN || FSUIPC_Read(0x0894, 2, &engine1CombustionFlag, &dwResult)) &&
                (aircraftPartsN || FSUIPC_Read(0x092C, 2, &engine2CombustionFlag, &dwResult)) &&
                (aircraftPartsN || FSUIPC_Read(0x09C4, 2, &engine3CombustionFlag, &dwResult)) &&
                (aircraftPartsN || FSUIPC_Read(0x0A5C, 2, &engine4CombustionFlag, &dwResult)) &&

                // If we wanted other reads/writes at the same time, we could put them here
                FSUIPC_Process(&dwResult))
            {
                read = true;

                // time, basically as a heartbeat
                QString fsTime = QString::asprintf("%02d:%02d:%02d", localFsTimeRaw[0], localFsTimeRaw[1], localFsTimeRaw[2]);

                if (cockpit)
                {
                    // COMs
                    CComSystem com1 = aircraft.getCom1System();
                    CComSystem com2 = aircraft.getCom2System();
                    CTransponder xpdr = aircraft.getTransponder();

                    // 2710 => 12710 => / 100.0 => 127.1
                    com1ActiveRaw  = static_cast<short>(10000 + CBcdConversions::bcd2Dec(com1ActiveRaw));
                    com2ActiveRaw  = static_cast<short>(10000 + CBcdConversions::bcd2Dec(com2ActiveRaw));
                    com1StandbyRaw = static_cast<short>(10000 + CBcdConversions::bcd2Dec(com1StandbyRaw));
                    com2StandbyRaw = static_cast<short>(10000 + CBcdConversions::bcd2Dec(com2StandbyRaw));
                    com1.setFrequencyActiveMHz(com1ActiveRaw / 100.0);
                    com2.setFrequencyActiveMHz(com2ActiveRaw / 100.0);
                    com1.setFrequencyStandbyMHz(com1StandbyRaw / 100.0);
                    com2.setFrequencyStandbyMHz(com2StandbyRaw / 100.0);

                    transponderCodeRaw = static_cast<qint16>(CBcdConversions::bcd2Dec(transponderCodeRaw));
                    xpdr.setTransponderCode(transponderCodeRaw);

                    // Mode by SB3
                    xpdr.setTransponderMode(xpdrModeSb3Raw == 0 ? CTransponder::ModeC : CTransponder::StateStandby);
                    if (xpdrIdentSb3Raw != 0)
                    {
                        // will be reset in CFsuipc::write
                        xpdr.setTransponderMode(CTransponder::StateIdent);
                    }
                    aircraft.setCockpit(com1, com2, xpdr);
                } // cockpit

                if (situation)
                {
                    // position
                    const double latCorrectionFactor = 90.0 / (10001750.0 * 65536.0 * 65536.0);
                    const double lonCorrectionFactor = 360.0 / (65536.0 * 65536.0 * 65536.0 * 65536.0);
                    CAircraftSituation situation = aircraft.getSituation();
                    CCoordinateGeodetic position = situation.getPosition();
                    CLatitude lat(latitudeRaw * latCorrectionFactor, CAngleUnit::deg());
                    CLongitude lon(longitudeRaw * lonCorrectionFactor, CAngleUnit::deg());
                    CAltitude groundAltitude(groundAltitudeRaw / 256.0, CLengthUnit::m());
                    position.setLatitude(lat);
                    position.setLongitude(lon);
                    position.setGeodeticHeight(groundAltitude);
                    situation.setPosition(position);

                    const double angleCorrectionFactor = 360.0 / 65536.0 / 65536.0; // see FSUIPC docu
                    pitchRaw = qRound(std::floor(pitchRaw * angleCorrectionFactor));
                    bankRaw  = qRound(std::floor(bankRaw * angleCorrectionFactor));

                    // MSFS has inverted pitch and bank angles
                    pitchRaw = ~pitchRaw;
                    bankRaw  = ~bankRaw;
                    if (pitchRaw < -90 || pitchRaw > 89) { CLogMessage(this).warning(u"FSUIPC: Pitch value out of limits: %1") << pitchRaw; }

                    // speeds, situation
                    CAngle pitch = CAngle(pitchRaw, CAngleUnit::deg());
                    CAngle bank = CAngle(bankRaw, CAngleUnit::deg());
                    CHeading heading = CHeading(headingRaw * angleCorrectionFactor, CHeading::True, CAngleUnit::deg());
                    CSpeed groundspeed(groundspeedRaw / 65536.0, CSpeedUnit::m_s());
                    CAltitude altitude(altitudeRaw / (65536.0 * 65536.0), CAltitude::MeanSeaLevel, CLengthUnit::m());
                    CAltitude pressureAltitude(pressureAltitudeRaw, CAltitude::MeanSeaLevel, CAltitude::PressureAltitude, CLengthUnit::m());
                    situation.setBank(bank);
                    situation.setHeading(heading);
                    situation.setPitch(pitch);
                    situation.setGroundSpeed(groundspeed);
                    situation.setAltitude(altitude);
                    situation.setPressureAltitude(pressureAltitude);
                    aircraft.setSituation(situation);

                } // situation

                // model
                const QString modelName = QString(modelNameRaw); // to be used to distinguish offsets for different models
                aircraft.setModelString(modelName);

                if (aircraftParts)
                {
                    const CAircraftLights lights(lightsRaw & (1 << 4), lightsRaw & (1 << 2), lightsRaw & (1 << 3), lightsRaw & (1 << 1),
                                                 lightsRaw & (1 << 0), lightsRaw & (1 << 8));

                    const QList<bool> helperList { engine1CombustionFlag != 0, engine2CombustionFlag != 0,
                                                   engine3CombustionFlag != 0, engine4CombustionFlag != 0
                                                 };

                    CAircraftEngineList engines;
                    for (int index = 0; index < numberOfEngines; ++index)
                    {
                        engines.push_back(CAircraftEngine(index + 1, helperList.at(index)));
                    }

                    CAircraftParts parts(lights, gearControlRaw == 16383, flapsControlRaw * 100 / 16383,
                                         spoilersControlRaw == 16383, engines, onGroundRaw == 1);

                    aircraft.setParts(parts);
                } // parts
            } // read

            const int result = static_cast<int>(dwResult);
            if (m_lastErrorIndex != result && result > 0)
            {
                m_lastErrorIndex = result;
                m_lastErrorMessage = CFsuipc::errorMessage(result);
                CLogMessage(this).warning(u"FSUIPC read error '%1'") << m_lastErrorMessage;
            }
            return read;
        }

        void CFsuipc::timerEvent(QTimerEvent *event)
        {
            Q_UNUSED(event);
            processWeatherMessages();
        }

        CFsuipc::FsuipcWeatherMessage::FsuipcWeatherMessage(unsigned int offset, const QByteArray &data, int leftTrials) :
            m_offset(static_cast<int>(offset)), m_messageData(data), m_leftTrials(leftTrials)
        { }


        void CFsuipc::clearAllWeather()
        {
            if (!this->isOpened()) { return; }

            // clear all weather
            NewWeather nw;

            // Clear new weather
            nw.uCommand = NW_CLEAR;
            nw.uFlags = 0;
            nw.ulSignature = 0;
            nw.uDynamics = 0;
            for (std::size_t i = 0; i < sizeof(nw.uSpare) / sizeof(nw.uSpare[0]); i++) { nw.uSpare[i] = 0; }

            nw.dLatitude = 0.;
            nw.dLongitude = 0.;
            nw.nElevation = 0;
            nw.ulTimeStamp = 0;
            nw.nTempCtr = 0;
            nw.nWindsCtr = 0;
            nw.nCloudsCtr = 0;
            QByteArray clearWeather(reinterpret_cast<const char *>(&nw), sizeof(NewWeather));
            m_weatherMessageQueue.append(FsuipcWeatherMessage(0xC800, clearWeather, 1));
        }

        void CFsuipc::processWeatherMessages()
        {
            if (m_weatherMessageQueue.empty()) { return; }
            if (!m_opened) { return; }
            FsuipcWeatherMessage &weatherMessage = m_weatherMessageQueue.first();

            DWORD dwResult;
            weatherMessage.m_leftTrials--;
            FSUIPC_Write(static_cast<DWORD>(weatherMessage.m_offset), static_cast<DWORD>(weatherMessage.m_messageData.size()), reinterpret_cast<void *>(weatherMessage.m_messageData.data()), &dwResult);

            unsigned int timeStamp = 0;
            FSUIPC_Read(0xC824, sizeof(timeStamp), &timeStamp, &dwResult);
            FSUIPC_Process(&dwResult);
            if (timeStamp > m_lastTimestamp)
            {
                m_weatherMessageQueue.removeFirst();
                m_lastTimestamp = timeStamp;
                return;
            }

            if (weatherMessage.m_leftTrials == 0)
            {
                CLogMessage(this).debug() << "Number of trials reached for weather message. Dropping it.";
                m_weatherMessageQueue.removeFirst();
            }
        }

        double CFsuipc::intToFractional(double fractional)
        {
            double f = fractional / 10.0;
            if (f < 1.0) return f;
            return intToFractional(f);
        }
    } // namespace
} // namespace

#endif // defined(SWIFT_USING_FSUIPC32) || defined(SWIFT_USING_FSUIPC64)