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

#ifndef DetectorConstruction_h
#define DetectorConstruction_h 1

#include "G4ThreeVector.hh"
#include "G4VUserDetectorConstruction.hh"
#include "globals.hh"

class G4LogicalVolume;
class G4Material;
class G4UniformMagField;
class DetectorMessenger;

const G4int kMaxTally = 20;

//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......

class DetectorConstruction : public G4VUserDetectorConstruction
{
  public:
    DetectorConstruction();
    virtual ~DetectorConstruction();

    void SetSizeX(G4double);
    void SetSizeYZ(G4double);
    void SetMaterial(const G4String&);
    void SetWorldMaterial(const G4String&);
    void SetMagField(G4double);

    void SetTallyNumber(G4int);
    void SetTallySize(G4int, const G4ThreeVector&);
    void SetTallyPosition(G4int, const G4ThreeVector&);

    virtual G4VPhysicalVolume* Construct();

    inline G4double GetWorldSizeX() const { return fWorldSizeX; };
    inline G4double GetWorldSizeYZ() const { return fWorldSizeYZ; };
    inline G4double GetAbsorSizeX() const { return fAbsorSizeX; };
    inline G4double GetAbsorSizeYZ() const { return fAbsorSizeYZ; };
    inline G4int GetTallyNumber() const { return fTallyNumber; };

    inline const G4Material* GetWorldMaterial() const { return fWorldMaterial; };
    inline const G4Material* GetAbsorMaterial() const { return fAbsorMaterial; };

    G4double GetTallyMass(G4int n) const;
    const G4LogicalVolume* GetLogicalTally(G4int n) const;

    void PrintParameters() const;

  private:
    void DefineMaterials();

    G4double fWorldSizeX;
    G4double fWorldSizeYZ;
    G4double fAbsorSizeX;
    G4double fAbsorSizeYZ;

    G4Material* fAbsorMaterial;
    G4Material* fWorldMaterial;

    G4UniformMagField* fMagField;
    G4LogicalVolume* fLAbsor;
    G4LogicalVolume* fLWorld;

    G4int fTallyNumber;
    G4ThreeVector fTallySize[kMaxTally];
    G4double fTallyMass[kMaxTally];
    G4ThreeVector fTallyPosition[kMaxTally];
    G4LogicalVolume* fLTally[kMaxTally];

    DetectorMessenger* fDetectorMessenger;
};

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#endif