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/// \file electromagnetic/TestEm3/include/DetectorConstruction.hh
/// \brief Definition of the DetectorConstruction class
//
//
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#ifndef DetectorConstruction_h
#define DetectorConstruction_h 1

#include "G4VUserDetectorConstruction.hh"
#include "globals.hh"
#include "G4Cache.hh"

class G4Box;
class G4LogicalVolume;
class G4VPhysicalVolume;
class G4Material;
class DetectorMessenger;

class G4GlobalMagFieldMessenger;

     const G4int kMaxAbsor = 10;                        // 0 + 9  
     
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class DetectorConstruction : public G4VUserDetectorConstruction
{
public:
  
   DetectorConstruction();
  ~DetectorConstruction();

public:
  
  void SetNbOfAbsor     (G4int);      
  void SetAbsorMaterial (G4int,const G4String&);     
  void SetAbsorThickness(G4int,G4double);
          
  void SetWorldMaterial (const G4String&);
  void SetCalorSizeYZ   (G4double);          
  void SetNbOfLayers    (G4int);   
  
  virtual G4VPhysicalVolume* Construct();
  virtual void ConstructSDandField();
     
public:
  
  void PrintCalorParameters(); 
                    
  G4double GetWorldSizeX() const           {return fWorldSizeX;}; 
  G4double GetWorldSizeYZ() const          {return fWorldSizeYZ;};
     
  G4double GetCalorThickness() const       {return fCalorThickness;}; 
  G4double GetCalorSizeYZ() const          {return fCalorSizeYZ;};
      
  G4int GetNbOfLayers() const              {return fNbOfLayers;}; 
     
  G4int       GetNbOfAbsor() const                {return fNbOfAbsor;}; 
  G4double    GetAbsorThickness(G4int i) const    {return fAbsorThickness[i];};
  const G4Material* GetAbsorMaterial(G4int i) const {return fAbsorMaterial[i];};

  const G4VPhysicalVolume* GetphysiWorld() const      {return fPhysiWorld;};
  const G4Material*        GetWorldMaterial() const   {return fWorldMaterial;};
  const G4VPhysicalVolume* GetAbsorber(G4int i) const {return fPhysiAbsor[i];};

private:

  void DefineMaterials();
  void ComputeCalorParameters();

  G4int              fNbOfAbsor;
  G4Material*        fAbsorMaterial[kMaxAbsor];
  G4double           fAbsorThickness[kMaxAbsor];

  G4int              fNbOfLayers;
  G4double           fLayerThickness;

  G4double           fCalorSizeYZ;
  G4double           fCalorThickness;

  G4Material*        fWorldMaterial;
  G4double           fWorldSizeYZ;
  G4double           fWorldSizeX;

  G4Box*             fSolidWorld;
  G4LogicalVolume*   fLogicWorld;
  G4VPhysicalVolume* fPhysiWorld;

  G4Box*             fSolidCalor;
  G4LogicalVolume*   fLogicCalor;
  G4VPhysicalVolume* fPhysiCalor;

  G4Box*             fSolidLayer;
  G4LogicalVolume*   fLogicLayer;
  G4VPhysicalVolume* fPhysiLayer;

  G4Box*             fSolidAbsor[kMaxAbsor];
  G4LogicalVolume*   fLogicAbsor[kMaxAbsor];
  G4VPhysicalVolume* fPhysiAbsor[kMaxAbsor];

  DetectorMessenger* fDetectorMessenger;
  G4Cache<G4GlobalMagFieldMessenger*> fFieldMessenger;  
};

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#endif