/****************************************************************************
 *
 * (c) 2009-2020 QGROUNDCONTROL PROJECT <http://www.qgroundcontrol.org>
 *
 * QGroundControl is licensed according to the terms in the file
 * COPYING.md in the root of the source code directory.
 *
 ****************************************************************************/

#include "QGCApplication.h"
#include "QGCCorePlugin.h"
#include "QGCOptions.h"
#include "QmlComponentInfo.h"
#include "FactMetaData.h"
#include "SettingsManager.h"
#include "AppMessages.h"
#include "QmlObjectListModel.h"
#include "VideoManager.h"
#if defined(QGC_GST_STREAMING)
#include "GStreamer.h"
#include "VideoReceiver.h"
#endif
#include "QGCLoggingCategory.h"
#include "QGCCameraManager.h"
#include "InstrumentValueArea.h"
#include "InstrumentValueData.h"

#include <QtQml>
#include <QQmlEngine>

/// @file
///     @brief Core Plugin Interface for QGroundControl - Default Implementation
///     @author Gus Grubba <gus@auterion.com>

class QGCCorePlugin_p
{
public:
    QGCCorePlugin_p()
    {
    }

    ~QGCCorePlugin_p()
    {
        if(pGeneral)
            delete pGeneral;
        if(pCommLinks)
            delete pCommLinks;
        if(pOfflineMaps)
            delete pOfflineMaps;
#if defined(QGC_GST_TAISYNC_ENABLED)
        if(pTaisync)
            delete pTaisync;
#endif
#if defined(QGC_GST_MICROHARD_ENABLED)
        if(pMicrohard)
            delete pMicrohard;
#endif
#if defined(QGC_AIRMAP_ENABLED)
        if(pAirmap)
            delete pAirmap;
#endif
        if(pMAVLink)
            delete pMAVLink;
        if(pConsole)
            delete pConsole;
#if defined(QT_DEBUG)
        if(pMockLink)
            delete pMockLink;
        if(pDebug)
            delete pDebug;
        if(pQmlTest)
            delete pQmlTest;
#endif
        if(defaultOptions)
            delete defaultOptions;
    }

    QmlComponentInfo* pGeneral                  = nullptr;
    QmlComponentInfo* pCommLinks                = nullptr;
    QmlComponentInfo* pOfflineMaps              = nullptr;
#if defined(QGC_GST_TAISYNC_ENABLED)
    QmlComponentInfo* pTaisync                  = nullptr;
#endif
#if defined(QGC_GST_MICROHARD_ENABLED)
    QmlComponentInfo* pMicrohard                = nullptr;
#endif
#if defined(QGC_AIRMAP_ENABLED)
    QmlComponentInfo* pAirmap                   = nullptr;
#endif
    QmlComponentInfo* pMAVLink                  = nullptr;
    QmlComponentInfo* pConsole                  = nullptr;
    QmlComponentInfo* pHelp                     = nullptr;
#if defined(QT_DEBUG)
    QmlComponentInfo* pMockLink                 = nullptr;
    QmlComponentInfo* pDebug                    = nullptr;
    QmlComponentInfo* pQmlTest                  = nullptr;
#endif

    QmlComponentInfo*   valuesPageWidgetInfo    = nullptr;
    QmlComponentInfo*   cameraPageWidgetInfo    = nullptr;
    QmlComponentInfo*   videoPageWidgetInfo     = nullptr;
    QmlComponentInfo*   healthPageWidgetInfo    = nullptr;
    QmlComponentInfo*   vibrationPageWidgetInfo = nullptr;

    QGCOptions*         defaultOptions          = nullptr;
    QVariantList        settingsList;
    QVariantList        analyzeList;
    QVariantList        instrumentPageWidgetList;

    QmlObjectListModel _emptyCustomMapItems;
};

QGCCorePlugin::~QGCCorePlugin()
{
    if(_p) {
        delete _p;
    }
}

QGCCorePlugin::QGCCorePlugin(QGCApplication *app, QGCToolbox* toolbox)
    : QGCTool(app, toolbox)
    , _showTouchAreas(false)
    , _showAdvancedUI(true)
{
    _p = new QGCCorePlugin_p;
}

void QGCCorePlugin::setToolbox(QGCToolbox *toolbox)
{
    QGCTool::setToolbox(toolbox);
    QQmlEngine::setObjectOwnership(this, QQmlEngine::CppOwnership);
    qmlRegisterUncreatableType<QGCCorePlugin>("QGroundControl.QGCCorePlugin", 1, 0, "QGCCorePlugin", "Reference only");
    qmlRegisterUncreatableType<QGCOptions>("QGroundControl.QGCOptions",       1, 0, "QGCOptions",    "Reference only");
    //-- Handle Camera and Video Changes
    connect(toolbox->multiVehicleManager(), &MultiVehicleManager::activeVehicleChanged, this, &QGCCorePlugin::_activeVehicleChanged);
}

void QGCCorePlugin::_activeVehicleChanged(Vehicle* activeVehicle)
{
    if(activeVehicle != _activeVehicle) {
        if(_activeVehicle) {
            disconnect(_activeVehicle, &Vehicle::dynamicCamerasChanged, this, &QGCCorePlugin::_dynamicCamerasChanged);
        }
        if(_dynamicCameras) {
            disconnect(_dynamicCameras, &QGCCameraManager::currentCameraChanged, this, &QGCCorePlugin::_currentCameraChanged);
            _dynamicCameras = nullptr;
        }
        _activeVehicle = activeVehicle;
        if(_activeVehicle) {
            connect(_activeVehicle, &Vehicle::dynamicCamerasChanged, this, &QGCCorePlugin::_dynamicCamerasChanged);
        }
    }
}

void QGCCorePlugin::_dynamicCamerasChanged()
{
    if(_currentCamera) {
        disconnect(_currentCamera, &QGCCameraControl::autoStreamChanged, this, &QGCCorePlugin::_autoStreamChanged);
        _currentCamera = nullptr;
    }
    if(_activeVehicle) {
        _dynamicCameras = _activeVehicle->dynamicCameras();
        if(_dynamicCameras) {
            connect(_dynamicCameras, &QGCCameraManager::currentCameraChanged, this, &QGCCorePlugin::_currentCameraChanged);
        }
    }
}

void QGCCorePlugin::_currentCameraChanged()
{
    if(_dynamicCameras) {
        QGCCameraControl* cp = _dynamicCameras->currentCameraInstance();
        if(_currentCamera) {
            disconnect(_currentCamera, &QGCCameraControl::autoStreamChanged, this, &QGCCorePlugin::_autoStreamChanged);
        }
        if(_currentCamera != cp) {
            _currentCamera = cp;
            connect(_currentCamera, &QGCCameraControl::autoStreamChanged, this, &QGCCorePlugin::_autoStreamChanged);
        }
    }
}

void QGCCorePlugin::_autoStreamChanged()
{
    _resetInstrumentPages();
    emit instrumentPagesChanged();
}

void QGCCorePlugin::_resetInstrumentPages()
{
    if (_p->valuesPageWidgetInfo) {
        _p->valuesPageWidgetInfo->deleteLater();
        _p->valuesPageWidgetInfo = nullptr;
    }
    if(_p->cameraPageWidgetInfo) {
        _p->cameraPageWidgetInfo->deleteLater();
        _p->cameraPageWidgetInfo = nullptr;
    }
#if defined(QGC_GST_STREAMING)
    if(_p->videoPageWidgetInfo) {
        _p->videoPageWidgetInfo->deleteLater();
        _p->videoPageWidgetInfo = nullptr;
    }
#endif
    if(_p->healthPageWidgetInfo) {
        _p->healthPageWidgetInfo->deleteLater();
        _p->healthPageWidgetInfo = nullptr;
    }
    if(_p->vibrationPageWidgetInfo) {
        _p->vibrationPageWidgetInfo->deleteLater();
        _p->vibrationPageWidgetInfo = nullptr;
    }
    _p->instrumentPageWidgetList.clear();
}

QVariantList &QGCCorePlugin::settingsPages()
{
    if(!_p->pGeneral) {
        _p->pGeneral = new QmlComponentInfo(tr("General"),
            QUrl::fromUserInput("qrc:/qml/GeneralSettings.qml"),
            QUrl::fromUserInput("qrc:/res/gear-white.svg"));
        _p->settingsList.append(QVariant::fromValue(reinterpret_cast<QmlComponentInfo*>(_p->pGeneral)));
        _p->pCommLinks = new QmlComponentInfo(tr("Comm Links"),
            QUrl::fromUserInput("qrc:/qml/LinkSettings.qml"),
            QUrl::fromUserInput("qrc:/res/waves.svg"));
        _p->settingsList.append(QVariant::fromValue(reinterpret_cast<QmlComponentInfo*>(_p->pCommLinks)));
        _p->pOfflineMaps = new QmlComponentInfo(tr("Offline Maps"),
            QUrl::fromUserInput("qrc:/qml/OfflineMap.qml"),
            QUrl::fromUserInput("qrc:/res/waves.svg"));
        _p->settingsList.append(QVariant::fromValue(reinterpret_cast<QmlComponentInfo*>(_p->pOfflineMaps)));
#if defined(QGC_GST_TAISYNC_ENABLED)
        _p->pTaisync = new QmlComponentInfo(tr("Taisync"),
            QUrl::fromUserInput("qrc:/qml/TaisyncSettings.qml"),
            QUrl::fromUserInput(""));
        _p->settingsList.append(QVariant::fromValue(reinterpret_cast<QmlComponentInfo*>(_p->pTaisync)));
#endif
#if defined(QGC_GST_MICROHARD_ENABLED)
        _p->pMicrohard = new QmlComponentInfo(tr("Microhard"),
            QUrl::fromUserInput("qrc:/qml/MicrohardSettings.qml"),
            QUrl::fromUserInput(""));
        _p->settingsList.append(QVariant::fromValue(reinterpret_cast<QmlComponentInfo*>(_p->pMicrohard)));
#endif
#if defined(QGC_AIRMAP_ENABLED)
        _p->pAirmap = new QmlComponentInfo(tr("AirMap"),
            QUrl::fromUserInput("qrc:/qml/AirmapSettings.qml"),
            QUrl::fromUserInput(""));
        _p->settingsList.append(QVariant::fromValue(reinterpret_cast<QmlComponentInfo*>(_p->pAirmap)));
#endif
        _p->pMAVLink = new QmlComponentInfo(tr("MAVLink"),
            QUrl::fromUserInput("qrc:/qml/MavlinkSettings.qml"),
            QUrl::fromUserInput("qrc:/res/waves.svg"));
        _p->settingsList.append(QVariant::fromValue(reinterpret_cast<QmlComponentInfo*>(_p->pMAVLink)));
        _p->pConsole = new QmlComponentInfo(tr("Console"),
            QUrl::fromUserInput("qrc:/qml/QGroundControl/Controls/AppMessages.qml"));
        _p->settingsList.append(QVariant::fromValue(reinterpret_cast<QmlComponentInfo*>(_p->pConsole)));
        _p->pHelp = new QmlComponentInfo(tr("Help"),
            QUrl::fromUserInput("qrc:/qml/HelpSettings.qml"));
        _p->settingsList.append(QVariant::fromValue(reinterpret_cast<QmlComponentInfo*>(_p->pHelp)));
#if defined(QT_DEBUG)
        //-- These are always present on Debug builds
        _p->pMockLink = new QmlComponentInfo(tr("Mock Link"),
            QUrl::fromUserInput("qrc:/qml/MockLink.qml"));
        _p->settingsList.append(QVariant::fromValue(reinterpret_cast<QmlComponentInfo*>(_p->pMockLink)));
        _p->pDebug = new QmlComponentInfo(tr("Debug"),
            QUrl::fromUserInput("qrc:/qml/DebugWindow.qml"));
        _p->settingsList.append(QVariant::fromValue(reinterpret_cast<QmlComponentInfo*>(_p->pDebug)));
        _p->pQmlTest = new QmlComponentInfo(tr("Palette Test"),
            QUrl::fromUserInput("qrc:/qml/QmlTest.qml"));
        _p->settingsList.append(QVariant::fromValue(reinterpret_cast<QmlComponentInfo*>(_p->pQmlTest)));
#endif
    }
    return _p->settingsList;
}

QVariantList& QGCCorePlugin::instrumentPages()
{
    if (!_p->valuesPageWidgetInfo) {
        _p->valuesPageWidgetInfo    = new QmlComponentInfo(tr("Values"),    QUrl::fromUserInput("qrc:/qml/ValuePageWidget.qml"));
        _p->cameraPageWidgetInfo    = new QmlComponentInfo(tr("Camera"),    QUrl::fromUserInput("qrc:/qml/CameraPageWidget.qml"));
#if defined(QGC_GST_STREAMING)
        if(!_currentCamera || !_currentCamera->autoStream()) {
            //-- Video Page Widget only available if using manual video streaming
            _p->videoPageWidgetInfo = new QmlComponentInfo(tr("Video Stream"), QUrl::fromUserInput("qrc:/qml/VideoPageWidget.qml"));
        }
#endif
        _p->healthPageWidgetInfo    = new QmlComponentInfo(tr("Health"),    QUrl::fromUserInput("qrc:/qml/HealthPageWidget.qml"));
        _p->vibrationPageWidgetInfo = new QmlComponentInfo(tr("Vibration"), QUrl::fromUserInput("qrc:/qml/VibrationPageWidget.qml"));

        _p->instrumentPageWidgetList.append(QVariant::fromValue(_p->valuesPageWidgetInfo));
        _p->instrumentPageWidgetList.append(QVariant::fromValue(_p->cameraPageWidgetInfo));
#if defined(QGC_GST_STREAMING)
        _p->instrumentPageWidgetList.append(QVariant::fromValue(_p->videoPageWidgetInfo));
#endif
        _p->instrumentPageWidgetList.append(QVariant::fromValue(_p->healthPageWidgetInfo));
        _p->instrumentPageWidgetList.append(QVariant::fromValue(_p->vibrationPageWidgetInfo));
    }
    return _p->instrumentPageWidgetList;
}

QVariantList& QGCCorePlugin::analyzePages()
{
    if (!_p->analyzeList.count()) {
        _p->analyzeList.append(QVariant::fromValue(new QmlComponentInfo(tr("Log Download"),     QUrl::fromUserInput("qrc:/qml/LogDownloadPage.qml"),      QUrl::fromUserInput("qrc:/qmlimages/LogDownloadIcon"))));
#if !defined(__mobile__)
        _p->analyzeList.append(QVariant::fromValue(new QmlComponentInfo(tr("GeoTag Images"),    QUrl::fromUserInput("qrc:/qml/GeoTagPage.qml"),           QUrl::fromUserInput("qrc:/qmlimages/GeoTagIcon"))));
#endif
        _p->analyzeList.append(QVariant::fromValue(new QmlComponentInfo(tr("MAVLink Console"),  QUrl::fromUserInput("qrc:/qml/MavlinkConsolePage.qml"),   QUrl::fromUserInput("qrc:/qmlimages/MavlinkConsoleIcon"))));
#if defined(QGC_ENABLE_MAVLINK_INSPECTOR)
        _p->analyzeList.append(QVariant::fromValue(new QmlComponentInfo(tr("MAVLink Inspector"),QUrl::fromUserInput("qrc:/qml/MAVLinkInspectorPage.qml"), QUrl::fromUserInput("qrc:/qmlimages/MAVLinkInspector"))));
#endif
    }
    return _p->analyzeList;
}

int QGCCorePlugin::defaultSettings()
{
    return 0;
}

QGCOptions* QGCCorePlugin::options()
{
    if(!_p->defaultOptions) {
        _p->defaultOptions = new QGCOptions();
    }
    return _p->defaultOptions;
}

bool QGCCorePlugin::overrideSettingsGroupVisibility(QString name)
{
    Q_UNUSED(name);

    // Always show all
    return true;
}

bool QGCCorePlugin::adjustSettingMetaData(const QString& settingsGroup, FactMetaData& metaData)
{
    if (settingsGroup != AppSettings::settingsGroup) {
        // All changes refer to AppSettings
#if !defined(QGC_ENABLE_PAIRING)
        //-- If we don't support pairing, disable it.
        if (metaData.name() == AppSettings::usePairingName) {
            metaData.setRawDefaultValue(false);
            //-- And hide the option
            return false;
        }
#endif
        return true;
    }

    //-- Default Palette
    if (metaData.name() == AppSettings::indoorPaletteName) {
        QVariant outdoorPalette;
#if defined (__mobile__)
        outdoorPalette = 0;
#else
        outdoorPalette = 1;
#endif
        metaData.setRawDefaultValue(outdoorPalette);
        return true;
    //-- Auto Save Telemetry Logs
    } else if (metaData.name() == AppSettings::telemetrySaveName) {
#if defined (__mobile__)
        metaData.setRawDefaultValue(false);
        return true;
#else
        metaData.setRawDefaultValue(true);
        return true;
#endif
#if defined(__ios__)
    } else if (metaData.name() == AppSettings::savePathName) {
        QString appName = qgcApp()->applicationName();
        QDir rootDir = QDir(QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation));
        metaData.setRawDefaultValue(rootDir.filePath(appName));
        return false;
#endif
    }
    return true; // Show setting in ui
}

void QGCCorePlugin::setShowTouchAreas(bool show)
{
    if (show != _showTouchAreas) {
        _showTouchAreas = show;
        emit showTouchAreasChanged(show);
    }
}

void QGCCorePlugin::setShowAdvancedUI(bool show)
{
    if (show != _showAdvancedUI) {
        _showAdvancedUI = show;
        emit showAdvancedUIChanged(show);
    }
}

void QGCCorePlugin::paletteOverride(QString colorName, QGCPalette::PaletteColorInfo_t& colorInfo)
{
    Q_UNUSED(colorName);
    Q_UNUSED(colorInfo);
}

QString QGCCorePlugin::showAdvancedUIMessage() const
{
    return tr("WARNING: You are about to enter Advanced Mode. "
              "If used incorrectly, this may cause your vehicle to malfunction thus voiding your warranty. "
              "You should do so only if instructed by customer support. "
              "Are you sure you want to enable Advanced Mode?");
}

void QGCCorePlugin::instrumentValueAreaCreateDefaultSettings(const QString& defaultSettingsGroup)
{
    if (defaultSettingsGroup == InstrumentValueArea::valuePageDefaultSettingsGroup) {
        InstrumentValueArea instrumentValueArea(defaultSettingsGroup);

        instrumentValueArea.setFontSize(InstrumentValueArea::LargeFontSize);

        QmlObjectListModel* columnModel = instrumentValueArea.appendRow();
        InstrumentValueData* colValue = columnModel->value<InstrumentValueData*>(0);
        colValue->setFact("Vehicle", "AltitudeRelative");
        colValue->setText(colValue->fact()->shortDescription());
        colValue->setShowUnits(true);

        columnModel = instrumentValueArea.appendRow();
        colValue = columnModel->value<InstrumentValueData*>(0);
        colValue->setFact("Vehicle", "GroundSpeed");
        colValue->setText(colValue->fact()->shortDescription());
        colValue->setShowUnits(true);

        columnModel = instrumentValueArea.appendRow();
        colValue = columnModel->value<InstrumentValueData*>(0);
        colValue->setFact("Vehicle", "FlightTime");
        colValue->setText(colValue->fact()->shortDescription());
        colValue->setShowUnits(false);
    }
}

QQmlApplicationEngine* QGCCorePlugin::createQmlApplicationEngine(QObject* parent)
{
    QQmlApplicationEngine* qmlEngine = new QQmlApplicationEngine(parent);
    qmlEngine->addImportPath("qrc:/qml");
    qmlEngine->rootContext()->setContextProperty("joystickManager", qgcApp()->toolbox()->joystickManager());
    qmlEngine->rootContext()->setContextProperty("debugMessageModel", AppMessages::getModel());
    return qmlEngine;
}

void QGCCorePlugin::createRootWindow(QQmlApplicationEngine* qmlEngine)
{
    qmlEngine->load(QUrl(QStringLiteral("qrc:/qml/MainRootWindow.qml")));
}

bool QGCCorePlugin::mavlinkMessage(Vehicle* vehicle, LinkInterface* link, mavlink_message_t message)
{
    Q_UNUSED(vehicle);
    Q_UNUSED(link);
    Q_UNUSED(message);

    return true;
}

QmlObjectListModel* QGCCorePlugin::customMapItems()
{
    return &_p->_emptyCustomMapItems;
}

VideoManager* QGCCorePlugin::createVideoManager(QGCApplication *app, QGCToolbox *toolbox)
{
    return new VideoManager(app, toolbox);
}

VideoReceiver* QGCCorePlugin::createVideoReceiver(QObject* parent)
{
#if defined(QGC_GST_STREAMING)
    return GStreamer::createVideoReceiver(parent);
#else
    Q_UNUSED(parent)
    return nullptr;
#endif
}

void* QGCCorePlugin::createVideoSink(QObject* parent, QQuickItem* widget)
{
#if defined(QGC_GST_STREAMING)
    return GStreamer::createVideoSink(parent, widget);
#else
    Q_UNUSED(parent)
    Q_UNUSED(widget)
    return nullptr;
#endif
}

void QGCCorePlugin::releaseVideoSink(void* sink)
{
#if defined(QGC_GST_STREAMING)
    GStreamer::releaseVideoSink(sink);
#else
    Q_UNUSED(sink)
#endif
}

bool QGCCorePlugin::guidedActionsControllerLogging() const
{
    return GuidedActionsControllerLog().isDebugEnabled();
}

QString QGCCorePlugin::stableVersionCheckFileUrl() const
{
#ifdef QGC_CUSTOM_BUILD
    // Custom builds must override to turn on and provide their own location
    return QString();
#else
    return QString("https://s3-us-west-2.amazonaws.com/qgroundcontrol/latest/QGC.version.txt");
#endif
}

QStringList
QGCCorePlugin::startupPages()
{
    return { "/qml/QGroundControl/Specific/UnitsWizardPage.qml" };
}
