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/// \file electromagnetic/TestEm2/include/DetectorConstruction.hh
/// \brief Definition of the DetectorConstruction class
//
//
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#ifndef DetectorConstruction_h
#define DetectorConstruction_h 1

#include "G4VUserDetectorConstruction.hh"
#include "G4ThreeVector.hh"
#include "G4Material.hh"
#include "G4VPhysicalVolume.hh"
#include "globals.hh"
#include "G4Cache.hh"

class G4Tubs;
class G4LogicalVolume;
class DetectorMessenger;
class G4GlobalMagFieldMessenger;

const G4int kMaxBin = 500;

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class DetectorConstruction : public G4VUserDetectorConstruction
{
public:

  DetectorConstruction();
  virtual ~DetectorConstruction();

public:

  void SetMaterial(const G4String&);
  void SetLBining (G4ThreeVector);
  void SetRBining (G4ThreeVector);

  virtual G4VPhysicalVolume* Construct();

  virtual void ConstructSDandField();

  const
  G4VPhysicalVolume* GetEcal() const    {return fPhysiEcal;};
  const G4Material* GetMaterial() const {return fMaterial;};

  // Subdivision of absorber
  G4int    GetnLtot() const      {return fNLtot;};
  G4int    GetnRtot() const      {return fNRtot;};
  G4double GetdLradl() const     {return fDLradl;};
  G4double GetdRradl() const     {return fDRradl;};
  G4double GetdLlength() const   {return fDLlength;};
  G4double GetdRlength() const   {return fDRlength;};     
  G4double GetfullLength() const {return fEcalLength;};
  G4double GetfullRadius() const {return fEcalRadius;};

private:

  void DefineMaterials();
  void UpdateParameters();

  G4int    fNLtot,    fNRtot;       // nb of bins: longitudinal and radial
  G4double fDLradl,   fDRradl;      // bin thickness (in radl unit)
  G4double fDLlength, fDRlength;    // bin thickness (in length unit)

  G4Material* fMaterial;            //pointer to the material
    
  G4double fEcalLength;             //full length of the Calorimeter
  G4double fEcalRadius;             //radius  of the Calorimeter

  G4Tubs*            fSolidEcal;    //pointer to the solid calorimeter
  G4LogicalVolume*   fLogicEcal;    //pointer to the logical calorimeter
  G4VPhysicalVolume* fPhysiEcal;    //pointer to the physical calorimeter

  DetectorMessenger* fDetectorMessenger;  //pointer to the Messenger

  G4Cache<G4GlobalMagFieldMessenger*> fFieldMessenger;
    
};

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#endif