/// @file AllPixTrackerSD.hh
/// @brief Implementation of the Allpix tracker sensitive detector class.

#ifndef AllPixTrackerSD_h
#define AllPixTrackerSD_h 1

// Standard include statements.
#include <set>

// GEANT4 include statements.
#include "G4VSensitiveDetector.hh"
#include "G4WrapperProcess.hh"
#include "G4UnitsTable.hh"

// Allpix include statements.
#include "AllPixTrackerHit.hh"
#include "Utils.h"

using namespace std;

using namespace Utils;

// Forward declarations.
class G4Step;
class G4HCofThisEvent;
class G4Event;
class AllPixGeoDsc;

#define MAX_CHAMBERS_EPIX 20

/// @brief The Allpix tracker sensitive detector class.
class AllPixTrackerSD : public G4VSensitiveDetector {
  
 public:
 
  /// @brief The constructor (non-pixel detectors).
  AllPixTrackerSD(G4String, G4ThreeVector, G4ThreeVector, AllPixGeoDsc *, G4RotationMatrix *);

  /// @brief The constructor (non-pixel detectors).
  AllPixTrackerSD(G4String, G4ThreeVector, G4RotationMatrix *);

  /// @brief The destructor.
  ~AllPixTrackerSD();
  
  void Initialize(G4HCofThisEvent*);

  G4bool ProcessHits(G4Step*, G4TouchableHistory*);

  void EndOfEvent(G4HCofThisEvent*);
  
  G4String GetHitsCollectionName(){ return m_thisHitsCollectionName; };

 private:

  AllPixTrackerHitsCollection* hitsCollection;

  G4ThreeVector m_absolutePosOfWrapper; // Absolute position of Wrapper

  G4ThreeVector m_relativePosOfSD;      // Relative (to Wrapper) position of SD

  G4RotationMatrix * m_rotationOfWrapper;  // rotation of Wrapper

  /// @brief The detector geometry descriptions.
  AllPixGeoDsc * m_gD;

  G4String m_thisHitsCollectionName;

  bool m_thisIsAPixelDetector;

  /// @brief Used to dump tracking information in special cases.
  long m_globalTrackId_Dump;

  set<AllPixTrackerHitsCollection *> m_hitsCollectionSet;

};//end of the AllPixTrackerSD class definition.

#endif