/* Copyright (C) 2013
 * 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 and at http://www.swift-project.org/license.html. 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.
 */

//! \file

#ifndef BLACKCORE_SIMULATOR_COMMON_H
#define BLACKCORE_SIMULATOR_COMMON_H

#include <QObject>
#include <QTimer>
#include <QtGlobal>

#include "blackcore/aircraftmatcher.h"
#include "blackcore/blackcoreexport.h"
#include "blackcore/simulator.h"
#include "blackmisc/aviation/callsignset.h"
#include "blackmisc/connectionguard.h"
#include "blackmisc/pluginstorageprovider.h"
#include "blackmisc/pq/length.h"
#include "blackmisc/pq/time.h"
#include "blackmisc/pq/units.h"
#include "blackmisc/simulation/aircraftmodelsetloader.h"
#include "blackmisc/simulation/ownaircraftprovider.h"
#include "blackmisc/simulation/remoteaircraftprovider.h"
#include "blackmisc/simulation/simulatedaircraftlist.h"
#include "blackmisc/simulation/simulatorinfo.h"
#include "blackmisc/simulation/simulatorplugininfo.h"
#include "blackmisc/simulation/simulatorsetup.h"
#include "blackmisc/weather/weathergridprovider.h"

namespace BlackMisc
{
    namespace Aviation
    {
        class CAircraftParts;
        class CAircraftSituation;
        class CCallsign;
    }
    namespace Simulation
    {
        class CAirspaceAircraftSnapshot;
        class CSimulatedAircraft;
    }
}

namespace BlackCore
{
    class IInterpolator;

    //! Common base class with providers, interface and some base functionality
    class BLACKCORE_EXPORT CSimulatorCommon :
        public BlackCore::ISimulator,
        public BlackMisc::Simulation::COwnAircraftAware,    // gain access to in memory own aircraft data
        public BlackMisc::Simulation::CRemoteAircraftAware, // gain access to in memory remote aircraft data
        public BlackMisc::CPluginStorageAware,              // gain access to in memory plugin storage
        public BlackMisc::Weather::CWeatherGridAware        // gain access to in memory weather grid
    {
        Q_OBJECT

    public:
        //! Destructor
        virtual ~CSimulatorCommon();

        //! \name ISimulator implementations
        //! @{
        virtual int getMaxRenderedAircraft() const override;
        virtual void setMaxRenderedAircraft(int maxRenderedAircraft) override;
        virtual void setMaxRenderedDistance(const BlackMisc::PhysicalQuantities::CLength &distance) override;
        virtual BlackMisc::PhysicalQuantities::CLength getMaxRenderedDistance() const override;
        virtual BlackMisc::PhysicalQuantities::CLength getRenderedDistanceBoundary() const override;
        virtual bool isMaxAircraftRestricted() const override;
        virtual bool isMaxDistanceRestricted() const override;
        virtual void enableDebugMessages(bool driverMessages, bool interpolatorMessages) override;
        virtual int getInstalledModelsCount() const override;
        virtual void highlightAircraft(const BlackMisc::Simulation::CSimulatedAircraft &aircraftToHighlight, bool enableHighlight, const BlackMisc::PhysicalQuantities::CTime &displayTime) override;
        virtual bool isRenderingEnabled() const override;
        virtual bool isRenderingRestricted() const override;
        virtual const BlackMisc::Simulation::CSimulatorPluginInfo &getSimulatorPluginInfo() const override;
        virtual const BlackMisc::Simulation::CSimulatorSetup &getSimulatorSetup() const override;
        virtual void unload() override;
        virtual void reloadInstalledModels() override;
        virtual void deleteAllRenderingRestrictions() override;
        virtual int physicallyRemoveMultipleRemoteAircraft(const BlackMisc::Aviation::CCallsignSet &callsigns) override;
        //! @}

    protected slots:
        //! Slow timer used to highlight aircraft, can be used for other things too
        virtual void ps_oneSecondTimer();

        //! Recalculate the rendered aircraft, this happens when restrictions are applied (max. aircraft, range)
        virtual void ps_recalculateRenderedAircraft(const BlackMisc::Simulation::CAirspaceAircraftSnapshot &snapshot);

        //! Provider added situation
        virtual void ps_remoteProviderAddAircraftSituation(const BlackMisc::Aviation::CAircraftSituation &situation);

        //! Provider added parts
        virtual void ps_remoteProviderAddAircraftParts(const BlackMisc::Aviation::CCallsign &callsign, const BlackMisc::Aviation::CAircraftParts &parts);

        //! Provider removed aircraft
        virtual void ps_remoteProviderRemovedAircraft(const BlackMisc::Aviation::CCallsign &callsign);

    protected:
        //! Constructor
        CSimulatorCommon(const BlackMisc::Simulation::CSimulatorPluginInfo &info,
                         BlackMisc::Simulation::IOwnAircraftProvider *ownAircraftProvider,
                         BlackMisc::Simulation::IRemoteAircraftProvider *remoteAircraftProvider,
                         BlackMisc::IPluginStorageProvider *pluginStorageProvider,
                         BlackMisc::Weather::IWeatherGridProvider *weatherGridProvider,
                         QObject *parent);

        //! \copydoc ISimulator::logicallyAddRemoteAircraft
        virtual bool logicallyAddRemoteAircraft(const BlackMisc::Simulation::CSimulatedAircraft &remoteAircraft) override;

        //! \copydoc ISimulator::logicallyRemoveRemoteAircraft
        virtual bool logicallyRemoveRemoteAircraft(const BlackMisc::Aviation::CCallsign &callsign) override;

        //! Blink the highlighted aircraft
        void blinkHighlightedAircraft();

        //! Restore aircraft from backend data
        void resetAircraftFromBacked(const BlackMisc::Aviation::CCallsign &callsign);

        //! Override situation from current interpolator values, if any!
        bool setInitialAircraftSituation(BlackMisc::Simulation::CSimulatedAircraft &aircraft) const;

    protected:
        IInterpolator *m_interpolator = nullptr;                 //!< interpolator instance
        bool m_pausedSimFreezesInterpolation = false;            //!< paused simulator will also pause interpolation (so AI aircraft will hold)
        BlackMisc::Simulation::CSimulatorSetup m_simulatorSetup; //!< setup object

        //! \todo unclear if this is valid for all simulators or for MS/P3D simulators only
        BlackCore::CAircraftMatcher m_modelMatcher;              //!< Model matcher
        BlackMisc::Simulation::CAircraftModelSetLoader m_modelSetLoader { BlackMisc::Simulation::CSimulatorInfo(BlackMisc::Simulation::CSimulatorInfo::FSX), this }; //!< load model set from caches

    private:
        bool m_debugMessages = false;             //!< Display debug messages
        bool m_blinkCycle = false;                //!< use for highlighting
        qint64 m_highlightEndTimeMsEpoch = 0;     //!< end highlighting
        int m_timerCounter = 0;                   //!< allows to calculate n seconds
        QTimer m_oneSecondTimer {this};           //!< multi purpose timer
        BlackMisc::Simulation::CSimulatorPluginInfo   m_simulatorPluginInfo;                       //!< info object
        BlackMisc::Simulation::CSimulatedAircraftList m_highlightedAircraft;                       //!< all other aircraft are to be ignored
        BlackMisc::Aviation::CCallsignSet             m_callsignsToBeRendered;                     //!< callsigns which will be rendered
        int                                           m_maxRenderedAircraft = MaxAircraftInfinite; //!< max.rendered aircraft
        BlackMisc::PhysicalQuantities::CLength        m_maxRenderedDistance { 0.0, BlackMisc::PhysicalQuantities::CLengthUnit::nullUnit()}; //!< max.distance for rendering
        BlackMisc::CConnectionGuard                   m_remoteAircraftProviderConnections;         //!< connected signal/slots
    };
} // namespace

#endif // guard