/**
  * Handler for player data
  * $Id$
  * $HeadURL$
  * $Author$
  * Created by gr, SLSE, 2017-02-20
  */

#pragma once

#include "line_of_sight.h"

#include <CentralEffectSimulation/logger.h>
#include <CentralEffectSimulation/dds_handler.h>
#include <CentralEffectSimulation/aes_item_view_utm.h>
#include <CentralEffectSimulation/handler_participant.h>
#include <CentralEffectSimulation/proxy_building.h>

#include <AreaEffectSimulation/aes_ftc.h>
#include <AreaEffectSimulation/Utils/aes_helper.h>
#include <ProjectDataManagement/pdm_dtc.h>
#include <TrainingAreaBase/tab_ftc.h>

#include <QtCore/QObject>
#include <QtCore/QMap>
#include <QtCore/QHash>
#include <QtCore/QVector>
#include <QPolygonF>
#include <QQueue>
#include <QTimer>

// AES-Handling for Explosions

namespace CesExplosions
{

enum class EffectType
{
  Unknown = 0,
  EffectiveMineRangeEnter = 0xf0000 | 1,  // AtMineAreaSingleMines = 15 = 0xf
  EffectiveMineRangeLeave = 0xf0000 | 2,  // AtMineAreaSingleMines = 15 = 0xf
  NContaminationLeave = 0x10000 | 0,             // AtNContamination = 1
  NContaminationEnterArea1 = 0x10000 | 1,
  NContaminationEnterArea2 = 0x10000 | 2,
  NContaminationDetonation = 0x10000 | 255,
  FunctionalAreaLeave = 0xc0000 | 0,      // AtReconArea = 12 = 0xc
  FunctionalAreaEnter = 0xc0000 | 1,
  ExplosionArea = 0x30000 | 2,            // AtExplosionArea = 3
  ExplosionSingle = 0x40000 | 3,          // AtExplosionSingle = 4
  BCContaminationLeave = 0x20000 | 0,     // AtBCContamination = 2
  BCContaminationEnterFloating = 0x20000 | 1,
  BCContaminationEnterResident = 0x20000 | 2,
  BCContaminationEnterFloatingArea = 0x20000 | 3,
  BeStillWarning = 11,
};

struct ParticipantDistance
{
  double squareDistance = 0;
  CentralEffectSimulation::HandlerParticipant::CesParticipantData participantPosition;
};

enum class RANGE
{
  LETHAL           = 1,
  NON_LETHAL       = 2,
  HAZARD_DISTANCE  = 3,
  OUTSIDE          = 4
};
QString toString(RANGE range);

//------------------------------------------------------------------------------
// Helper class HandledImpactsStorage
//------------------------------------------------------------------------------
class EnteredHarzardDistanceStorage final
{
public:
  Q_DISABLE_COPY(EnteredHarzardDistanceStorage)

  EnteredHarzardDistanceStorage();
  ~EnteredHarzardDistanceStorage();

  void participantEnteringArea(int participantId, int areaId);
  void participantLeavingArea(int participantId, int areaId);
  bool hasParticipantAlreadyEnteredArea(int participantId, int areaId) const; ///< or isWithinArea?
  void removeParticipant(int participantId);
  void removeArea(int aesItemId);

  QVector<int> allParticipantIdsOfArea(int areaId) const;

private:
  class Private;
  /**
      * The private d->pointer to not break BC when changing internals of this class
     */
  Private *d = nullptr;
};



//------------------------------------------------------------------------------
// class HandlerExplosions
//------------------------------------------------------------------------------
class HandlerExplosions : public QObject
  , protected TrainingAreaBase::Interface::Ftc::SendCesHitReplyHandler
{
  Q_OBJECT
public:
  using AES_ITEM_VIEW_UTM_CONST_ITER = QHash<int, CentralEffectSimulation::AesItemViewUtm>::const_iterator;


  explicit HandlerExplosions(const std::shared_ptr<CentralEffectSimulation::DdsHandler> &ddsHandler,
                            const std::shared_ptr<CentralEffectSimulation::HandlerParticipant> &participantHandler,
                            const std::shared_ptr<CentralEffectSimulation::ProxyBuilding> &proxyBuilding,
                            QObject *parent = nullptr);

  ~HandlerExplosions();

  /**
    * Initialize the handler to manage information from player management
    */
  bool init();

protected:
  void onSendCesHitReply(const Core::FunctionReplyObject &replyObject) override final;

private slots:
  void onAesItemViewChanged(const AreaEffectSimulation::AesItemView &data, DataModification modType);
  void onTriggeredImpactsChanged(const AreaEffectSimulation::TriggeredImpacts &data, DataModification modType);
  void onExplosionSingleChanged(const AreaEffectSimulation::ExplosionSingle &data, DataModification modType);
  void onEffectsChanged(const AreaEffectSimulation::Effects &effects, DataModification modType);
  void onNewParticipantCesPosition(const CentralEffectSimulation::HandlerParticipant::CesParticipantData &participantData);
  void onRestoreRadioReadinessChanged(const int participantId);
  void onChargeEffectChanged(const AreaEffectSimulation::ChargeEffect &data, DataModification modType);
  void onStartTimeReached();

private: // structs


private: // methoden
  bool inBoundingBoxCheck(const CentralEffectSimulation::AesItemViewUtm &itemViewUtm,
                          const CentralEffectSimulation::HandlerParticipant::CesParticipantData &participantPosition);

  void calculateSmartEffect(const AreaEffectSimulation::Effects &effects);
  void calculateSmartExplosion(const int32_t aesItemId,
                               const AreaEffectSimulation::ChargeStruct &chargeStruct,
                               int32_t  partyId,
                               const Core::GeoPosition2D &impactPosition,
                               qint64 impactTime);
  void calculateImpact(const AreaEffectSimulation::ChargeEffect &data);

  void calculateImpacts(const AreaEffectSimulation::TriggeredImpacts &data);
  void calculateImpacts(const CentralEffectSimulation::AesItemViewUtm &itemView,
                        const QVector<int> &impactsToCheck,
                        const CentralEffectSimulation::HandlerParticipant::CesParticipantData &participantPosition);

  void calculateImpactsEffect(const CentralEffectSimulation::AesItemViewUtm &itemView,
                              const QVector<LtsCoordTrans::LtsCoordinate> &triggeredEffectsLtsCoord,
                              const CentralEffectSimulation::HandlerParticipant::CesParticipantData &participantPosition,
                              Options lineOfSightOptions);

  void calculateImpactsEffect_outdated(const CentralEffectSimulation::AesItemViewUtm &itemView,
                                       const std::vector<Core::GeoPosition> &triggeredEffectsGeoPos,
                                       const QVector<QPointF> &triggeredEffectsUtmPos,
                                       const CentralEffectSimulation::HandlerParticipant::CesParticipantData &participantPosition,
                                       Options lineOfSightOptions);

  bool inCircle(const QPointF &centerUtm, const double radius, const QPointF &pointUtm);

  QVector<double> chargeRanges(const AreaEffectSimulation::ChargeStruct &chargeStruct) const;
  int iedClassToEffect(int iedClass) const;
  static RANGE getMostInnerRange(const QVector<double> &ranges, double currentDistance);
  RANGE getMostInnerRange(double currentDistance, const AreaEffectSimulation::ChargeStruct &chargeStruct, int &retEffect);

  int checkPartEnterLeaveArea(HandlerExplosions::AES_ITEM_VIEW_UTM_CONST_ITER currentAreaIt,
                              const AES_ITEM_VIEW_UTM_CONST_ITER &endingAreaIt,
                              CentralEffectSimulation::HandlerParticipant::POSITIONS_CONST_ITER currentParticipantIt,
                              const CentralEffectSimulation::HandlerParticipant::POSITIONS_CONST_ITER &endingParticipantIt);

  void sendEffectTypeEvent(const CentralEffectSimulation::AesItemViewUtm &itemView,
                           const CentralEffectSimulation::HandlerParticipant::CesParticipantData &participantPosition,
                           EffectType effectType,
                           qint64 effectTime);
  void sendCesHitRequest(const CentralEffectSimulation::AesItemViewUtm &itemView,
                         const CentralEffectSimulation::HandlerParticipant::CesParticipantData &participantPosition,
                         const qint64 effectTime,
                         const int remaining,
                         const ProjectDataManagement::EventType eventType);

  double getSquareDistance(const QPointF &centerUtm, const QPointF &pointUtm);
  void sendEnterHazardDistance(const int participantId, const int aesItemId);
  void sendLeaveHazardDistance(const int participantId, const int aesItemId, const int remaining);

  void on_newHazardInfo(int participantId, int aesId);

  void sendParticipantEvent(const CentralEffectSimulation::AesItemViewUtm &item,
                            const CentralEffectSimulation::HandlerParticipant::CesParticipantData &participantPosition,
                            const ProjectDataManagement::EventType eventType);

  void startTimer(int id, int msec);


private: // attributes

  std::shared_ptr<CentralEffectSimulation::DdsHandler>         m_ddsHandler;  ///< Pointer to VOM DDS handler
  std::shared_ptr<CentralEffectSimulation::HandlerParticipant> m_handlerParticipant;
  std::shared_ptr<CentralEffectSimulation::ProxyBuilding>      m_proxyBuilding;


  // AES-Values

  // m_aesItemViewsUtm enthält die übergeordneteten Daten (extent) der Wirkfelder (z.B. für bbox check)
  QHash<int, CentralEffectSimulation::AesItemViewUtm>          m_aesItemViewsUtm;        // key = aesItemId [GUEZE-2484]

  // m_aesItemViewsImpactsUtm enthält die Coords für die Einschläge der ExplosionCluster / ClusterSingleExplosions
  QHash<int, CentralEffectSimulation::AesItemViewUtm>          m_aesItemViewsImpactsUtm; // key = aesItemId only for HIT [GUEZE-2484]

  QQueue<TrainingAreaBase::SendCesHitRequest>                  m_sendCesHitRequestQueue;

#ifdef ORIGINATOR_AT_SENDCESHITREQUEST
  // N. Thoden, 18.11.2024
  // Wurde bis ca. 2022 bei onExlosionAreaChanged 'gefüllt'.
  // Mit Umstellung auf ExplosionCluster (3D_wirksim in 2023/2024) scheinbar outdated.
  QHash<int32_t, int>                                          m_aesItemId2partIdMap; // Key = aesItemId value= participantId
#endif // ORIGINATOR_AT_SENDCESHITREQUEST

  AreaEffectSimulation::HandledImpactsStorage                  m_handledImpactsStorage;       // for ExplosionCluster and all former
  EnteredHarzardDistanceStorage                                m_enteredHazardDistanceStore;  // which participant are in which areas (aesItemids)

  CentralEffectSimulation::LOGGER_T                           &m_logger;           ///< Interface to the Logging-Facility
  QHash<int, AreaEffectSimulation::ChargeEffect>               m_chargeEffects;   // key = onChargeEffectChanged.id value ChargeEffect
};

//Q_DECLARE_OPERATORS_FOR_FLAGS(Options)

} // namespace CesExplosions