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/// \file F04Trajectory.hh
/// \brief Definition of the F04Trajectory class

#ifndef F04Trajectory_h
#define F04Trajectory_h 1

#include "G4Allocator.hh"
#include "G4ParticleDefinition.hh"
#include "G4Step.hh"
#include "G4Track.hh"
#include "G4TrajectoryPoint.hh"
#include "G4VTrajectory.hh"
#include "G4ios.hh"
#include "globals.hh"

#include <stdlib.h>
#include <vector>

using TrajectoryPointContainer = std::vector<G4VTrajectoryPoint*>;

class F04Trajectory : public G4VTrajectory
{
    //--------
  public:  // without description
    //--------

    // Constructor/Destructor

    F04Trajectory();
    F04Trajectory(const G4Track* aTrack);
    F04Trajectory(F04Trajectory&);
    ~F04Trajectory() override;

    // Operators

    inline void* operator new(size_t);
    inline void operator delete(void*);
    inline int operator==(const F04Trajectory& right) const { return (this == &right); }

    // Get/Set functions

    inline G4int GetTrackID() const override { return fTrackID; }
    inline G4int GetParentID() const override { return fParentID; }
    inline G4String GetParticleName() const override { return fParticleName; }
    inline G4double GetCharge() const override { return fPDGCharge; }
    inline G4int GetPDGEncoding() const override { return fPDGEncoding; }
    inline G4ThreeVector GetInitialMomentum() const override { return fInitialMomentum; }

    // Other member functions

    void ShowTrajectory(std::ostream& os = G4cout) const override;
    void AppendStep(const G4Step* aStep) override;
    void MergeTrajectory(G4VTrajectory* secondTrajectory) override;

    G4ParticleDefinition* GetParticleDefinition();

    int GetPointEntries() const override { return fpPointsContainer->size(); }
    G4VTrajectoryPoint* GetPoint(G4int i) const override { return (*fpPointsContainer)[i]; }

    const std::map<G4String, G4AttDef>* GetAttDefs() const override;
    std::vector<G4AttValue>* CreateAttValues() const override;

    //---------
  private:
    //---------

    // Member data

    TrajectoryPointContainer* fpPointsContainer = nullptr;

    G4int fTrackID = 0;
    G4int fParentID = 0;
    G4double fPDGCharge = 0.;
    G4int fPDGEncoding = 0;
    G4String fParticleName;
    G4ThreeVector fInitialMomentum;
};

extern G4ThreadLocal G4Allocator<F04Trajectory>* F04TrajectoryAllocator;

inline void* F04Trajectory::operator new(size_t)
{
  if (!F04TrajectoryAllocator) F04TrajectoryAllocator = new G4Allocator<F04Trajectory>;
  return (void*)F04TrajectoryAllocator->MallocSingle();
}

inline void F04Trajectory::operator delete(void* aTrajectory)
{
  F04TrajectoryAllocator->FreeSingle((F04Trajectory*)aTrajectory);
}

#endif