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/// \file G4FieldParametersMessenger.h
/// \brief Definition of the G4FieldParametersMessenger class
///
/// This code was initially developed in Geant4 VMC package
/// (https://github.com/vmc-project)
/// and adapted to Geant4.
///
/// \author I. Hrivnacova; IJCLab, Orsay

#ifndef G4FIELDPARAMETERSMESSENGER_HH
#define G4FIELDPARAMETERSMESSENGER_HH

#include "G4UImessenger.hh"
#include "globals.hh"

class G4FieldParameters;

class G4UIcommand;
class G4UIdirectory;
class G4UIcmdWithoutParameter;
class G4UIcmdWithAString;
class G4UIcmdWithADouble;
class G4UIcmdWithADoubleAndUnit;
class G4UIcmdWithABool;

/// \ingroup geometry
/// \brief Messenger class that defines commands for TG4DetConstruction.
///
/// Implements commands:
/// - /field/fieldType fieldType     \n
///       fieldType = Magnetic | ElectroMagnetic | Gravity
/// - /field/equationType eqType     \n
///       eqType = EqMagnetic | EqMagneticWithSpin | EqElectroMagnetic |
///                EqEMfieldWithSpin | EqEMfieldWithEDM
/// - /field/stepperType stepperType \n
///       stepperType = CashKarpRKF45 | ClassicalRK4 | ExplicitEuler | ImplicitEuler |
///                     SimpleHeum | SimpleRunge | ConstRK4 | ExactHelixStepper
///                     | HelixExplicitEuler | HelixHeum | HelixImplicitEuler |
///                     HelixMixedStepper | HelixSimpleRunge | NystromRK4 |
///                     RKG3Stepper
/// - /field/setMinimumStep value
/// - /field/setDeltaChord  value
/// - /field/setDeltaOneStep value
/// - /field/setDeltaIntersection value
/// - /field/setMinimumEpsilonStep value
/// - /field/setMaximumEpsilonStep value
/// - /field/setConstDistance value
/// - /field/printParameters
///
/// \author I. Hrivnacova; IJClab, Orsay

class G4FieldParametersMessenger : public G4UImessenger
{
 public:
  /// Standard constructor
  G4FieldParametersMessenger(G4FieldParameters* fieldParameters);
  /// Destructor
  ~G4FieldParametersMessenger() override;

  // methods
  /// Apply command to the associated object.
  void SetNewValue(G4UIcommand* command, G4String newValues) override;

 private:
  /// Not implemented
  G4FieldParametersMessenger() = delete;
  /// Not implemented
  G4FieldParametersMessenger(const G4FieldParametersMessenger& right) = delete;
  /// Not implemented
  G4FieldParametersMessenger& operator=(
    const G4FieldParametersMessenger& right) = delete;

  // Data members

  G4FieldParameters* fFieldParameters = nullptr; ///< associated class
  G4UIdirectory* fDirectory = nullptr;           ///< command directory

  // Commands data members

  /// Command: fieldType
  G4UIcmdWithAString* fFieldTypeCmd = nullptr; 

  /// Command: equationType
  G4UIcmdWithAString* fEquationTypeCmd = nullptr; 

  /// Command: stepperType
  G4UIcmdWithAString* fStepperTypeCmd = nullptr; 

  /// Command: setMinimumStep
  G4UIcmdWithADoubleAndUnit* fSetMinimumStepCmd = nullptr; 

  /// Command: setDeltaChord
  G4UIcmdWithADoubleAndUnit* fSetDeltaChordCmd = nullptr; 

  /// Command: setDeltaOneStep
  G4UIcmdWithADoubleAndUnit* fSetDeltaOneStepCmd = nullptr; 

  /// Command: setDeltaIntersection
  G4UIcmdWithADoubleAndUnit* fSetDeltaIntersectionCmd = nullptr; 

  /// Command: setMinimumEpsilon
  G4UIcmdWithADouble* fSetMinimumEpsilonStepCmd = nullptr; 

  /// Command: setMaximumEpsilon
  G4UIcmdWithADouble* fSetMaximumEpsilonStepCmd = nullptr; 

  /// Command: setConstDistance
  G4UIcmdWithADoubleAndUnit* fSetConstDistanceCmd = nullptr; 

  /// Command: printParameters
  G4UIcmdWithoutParameter* fPrintParametersCmd = nullptr; 
};

#endif // G4FIELDPARAMETERSMESSENGER_HH