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/// \file G4MonopoleFieldSetup.hh
/// \brief Definition of the G4MonopoleFieldSetup class

// ------------------------------------------------------------
//        GEANT 4  include file implementation
// ------------------------------------------------------------
//
// G4MonopoleFieldSetup is responsible for setting up a magnetic field
// and the ability to use it with two different equation of motions,
// one for monopoles and another for the rest of the particles.
//
//

// =======================================================================
// Created:  13 May 2010, B. Bozsogi
// =======================================================================

#ifndef G4MonopoleFieldSetup_H
#define G4MonopoleFieldSetup_H

#include "G4MagneticField.hh"
#include "G4UniformMagField.hh"

class G4FieldManager;
class G4ChordFinder;
class G4Mag_UsualEqRhs;
class G4MagIntegratorStepper;
class G4MonopoleEquation;

class G4MonopoleFieldMessenger;

class G4MonopoleFieldSetup
{
  public:
    G4MonopoleFieldSetup();
    ~G4MonopoleFieldSetup();

    void InitialiseAll();  //  Set parameters and call method below
    //  void SetMagField(G4double fieldValue);
    void SetStepperAndChordFinder(G4int val);
    void SetZMagFieldValue(G4double val);
    void ConstructMagField();

    //  static G4MonopoleFieldSetup* GetMonopoleFieldSetup();
    G4double GetZmagFieldValue() const { return fZmagFieldValue; }

  private:
    G4FieldManager* GetGlobalFieldManager();  // static

    G4FieldManager* fFieldManager;
    G4ChordFinder* fChordFinder;
    G4ChordFinder* fUsualChordFinder;
    G4ChordFinder* fMonopoleChordFinder;
    G4Mag_UsualEqRhs* fEquation;
    G4MonopoleEquation* fMonopoleEquation;

    G4MagneticField* fMagneticField;

    G4MagIntegratorStepper* fStepper;
    G4MagIntegratorStepper* fMonopoleStepper;

    G4double fMinStep;
    G4double fZmagFieldValue;

    //  G4int                   fStepperIndex;

    //  static G4MonopoleFieldSetup*  fMonopoleFieldSetup;
    G4MonopoleFieldMessenger* fMonopoleFieldMessenger;
};

#endif