//
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//
// G4GeneralParticleSourceMessenger
//
// Class Description:
//
// The function of the G4GeneralParticleSourceMessenger is to allow the user to
// enter commands either in interactive command line mode or through macros to
// control the G4GeneralParticleSource. 

// Author: Fan Lei, QinetiQ ltd.
// Customer: ESA/ESTEC
// History:
// - Version 2.0, 05/02/2004, Fan Lei - Created.
//     Multiple particle source definition
// - Version 2.1, 20/03/2014, Andrew Green - Modifications for MT
//     Added a check to force only one thread to parse the macro file.
//     This information is fed into the GPS which now has a split mechanism
//     for the large data (hence need to only read in 1 thread)
// - Version 3.0, Aug-Oct 2014, Andrea Dotti
//   Transformations for thread safety and use in MT application
//   Messenger is now a singleton w/ explicit Destroy() method for deletion
//   Note the following: the class should be instantiated only once
//   by a worker thread. It relies on a new feature of basic messenger class
//   that allows for UI commands to be created by worker threads but being
//   executed by master thread. For this reason the messenger itself should
//   be created once, form here the singleton pattern
// --------------------------------------------------------------------
#ifndef G4GeneralParticleSourceMessenger_hh
#define G4GeneralParticleSourceMessenger_hh 1

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

class G4ParticleTable;
class G4UIcommand;
class G4UIdirectory;
class G4UIcmdWithoutParameter;
class G4UIcmdWithAString;
class G4UIcmdWithADoubleAndUnit;
class G4UIcmdWith3Vector;
class G4UIcmdWith3VectorAndUnit;
class G4UIcmdWithAnInteger;
class G4UIcmdWithADouble;
class G4UIcmdWithABool;
class G4UIcmdWithoutParameter;

class G4SingleParticleSource;
class G4GeneralParticleSource;

class G4GeneralParticleSourceMessenger: public G4UImessenger
{
  public:

    void SetParticleGun(G4SingleParticleSource *fpg) { fParticleGun = fpg; } ;
      // Select the particle gun to be defined/modified
   
    void SetNewValue(G4UIcommand* command, G4String newValues) override;
      // Identifies the command which has been invoked by the user, extracts the
      // parameters associated with that command (held in newValues), and uses
      // these values with the appropriate member function of
      // G4GeneralParticleSource

    G4String GetCurrentValue(G4UIcommand* command) override;
      // Allows the user to retrieve the current values of parameters.
      // NOT yet implemented!

    static G4GeneralParticleSourceMessenger* GetInstance(G4GeneralParticleSource*);
    static void Destroy();

 private:

    explicit G4GeneralParticleSourceMessenger(G4GeneralParticleSource*);
      // Constructor: sets up commands
    ~G4GeneralParticleSourceMessenger() override;
      // Destructor: deletes commands

    void IonCommand(G4String newValues);
    void IonLvlCommand(G4String newValues);

  private:

    G4GeneralParticleSource* fGPS = nullptr;
    G4SingleParticleSource* fParticleGun = nullptr;
    G4ParticleTable* particleTable = nullptr;
    G4String histtype;
    
    G4UIdirectory* gpsDirectory;

    // Multiple source control commands
    //
    G4UIdirectory              *sourceDirectory;
    G4UIcmdWithADouble         *addsourceCmd;
    G4UIcmdWithoutParameter    *listsourceCmd;
    G4UIcmdWithoutParameter    *clearsourceCmd;
    G4UIcmdWithoutParameter    *getsourceCmd;
    G4UIcmdWithAnInteger       *setsourceCmd;  
    G4UIcmdWithADouble         *setintensityCmd;
    G4UIcmdWithAnInteger       *deletesourceCmd;
    G4UIcmdWithABool           *multiplevertexCmd;
    G4UIcmdWithABool           *flatsamplingCmd;

    // Positional commands
    //
    G4UIdirectory              *positionDirectory;
    G4UIcmdWithAString         *typeCmd1;
    G4UIcmdWithAString         *shapeCmd1;
    G4UIcmdWith3VectorAndUnit  *centreCmd1;
    G4UIcmdWith3Vector         *posrot1Cmd1;
    G4UIcmdWith3Vector         *posrot2Cmd1;
    G4UIcmdWithADoubleAndUnit  *halfxCmd1;
    G4UIcmdWithADoubleAndUnit  *halfyCmd1;
    G4UIcmdWithADoubleAndUnit  *halfzCmd1;
    G4UIcmdWithADoubleAndUnit  *radiusCmd1;
    G4UIcmdWithADoubleAndUnit  *radius0Cmd1;
    G4UIcmdWithADoubleAndUnit  *possigmarCmd1;
    G4UIcmdWithADoubleAndUnit  *possigmaxCmd1;
    G4UIcmdWithADoubleAndUnit  *possigmayCmd1;
    G4UIcmdWithADoubleAndUnit  *paralpCmd1;
    G4UIcmdWithADoubleAndUnit  *partheCmd1;
    G4UIcmdWithADoubleAndUnit  *parphiCmd1;  
    G4UIcmdWithAString         *confineCmd1;
    
    // Angular commands
    //
    G4UIdirectory* angularDirectory;
    G4UIcmdWithAString         *angtypeCmd1;
    G4UIcmdWith3Vector         *angrot1Cmd1;
    G4UIcmdWith3Vector         *angrot2Cmd1;
    G4UIcmdWithADoubleAndUnit  *minthetaCmd1;
    G4UIcmdWithADoubleAndUnit  *maxthetaCmd1;
    G4UIcmdWithADoubleAndUnit  *minphiCmd1;
    G4UIcmdWithADoubleAndUnit  *maxphiCmd1;
    G4UIcmdWithADoubleAndUnit  *angsigmarCmd1;
    G4UIcmdWithADoubleAndUnit  *angsigmaxCmd1;
    G4UIcmdWithADoubleAndUnit  *angsigmayCmd1;
    G4UIcmdWith3VectorAndUnit  *angfocusCmd;
    G4UIcmdWithABool           *useuserangaxisCmd1;
    G4UIcmdWithABool           *surfnormCmd1;

    // Energy commands
    //
    G4UIdirectory* energyDirectory;
    G4UIcmdWithAString         *energytypeCmd1;
    G4UIcmdWithADoubleAndUnit  *eminCmd1;
    G4UIcmdWithADoubleAndUnit  *emaxCmd1;
    G4UIcmdWithADoubleAndUnit  *monoenergyCmd1;
    G4UIcmdWithADoubleAndUnit  *engsigmaCmd1;
    G4UIcmdWithADouble         *alphaCmd1;
    G4UIcmdWithADouble         *tempCmd1;
    G4UIcmdWithADouble         *ezeroCmd1;
    G4UIcmdWithADouble         *gradientCmd1;
    G4UIcmdWithADouble         *interceptCmd1;
    G4UIcmdWithADouble         *arbeintCmd1;
    G4UIcmdWithoutParameter    *calculateCmd1;
    G4UIcmdWithABool           *energyspecCmd1;
    G4UIcmdWithABool           *diffspecCmd1;
    G4UIcmdWithABool           *applyEnergyWeightCmd1;

    // Histogram commands
    //
    G4UIdirectory              *histDirectory;
    G4UIcmdWith3Vector         *histpointCmd1;
    G4UIcmdWithAString         *histfileCmd1;
    G4UIcmdWithAString         *histnameCmd1;
    G4UIcmdWithAString         *arbintCmd1;
    G4UIcmdWithAString         *resethistCmd1;

    G4UIcmdWithAnInteger* verbosityCmd;

    // Commands from G4ParticleGun
    //
    G4UIcommand* ionCmd;
    G4UIcommand* ionLvlCmd;
    G4UIcmdWithAString* particleCmd;
    G4UIcmdWithADoubleAndUnit* timeCmd;
    G4UIcmdWith3Vector* polCmd;
    G4UIcmdWithAnInteger* numberCmd;
    G4UIcmdWith3VectorAndUnit* positionCmd;
    G4UIcmdWith3Vector* directionCmd;
    G4UIcmdWithADoubleAndUnit* energyCmd;
    G4UIcmdWithoutParameter* listCmd;

    // For ion shooting
    //
    G4bool   fShootIon = false; 

    G4int    fAtomicNumber = 0;
    G4int    fAtomicMass = 0;
    G4int    fIonCharge = 0;
    G4double fIonExciteEnergy = 0.0;

    G4int    fAtomicNumberL = 0;
    G4int    fAtomicMassL = 0;
    G4int    fIonChargeL = 0;
    G4int    fIonEnergyLevel = 0;

/** Andrea Dotti Feb 2015
 * GPS messenger design requires some explanation for what distributions
 * parameters are concerned : Each thread has its own GPS
 * since primary generation is a user action.
 * However to save memory the underlying structures that provide the
 * GPS functionalities ( the G4SPS*Distribution classes and the
 * G4SPSRandomGenerator class)
 * are shared among threads. This implies that modifying parameters of sources
 * requires some attention:
 * 1- Only one thread should change source parameters.
 * 2- Changing of parameters can happen only between runs, when is guaranteed
 *    that no thread is accessing them
 * 2- UI commands require that even if messenger is instantiated in a thread
 *    the commands are executed in the master (this is possible since V10.1)
 * The simplest solution is to use UI commands to change GPS parameters and
 * avoid C++ APIs. If this is inevitable a simple solution is to instantiate
 * an instance of G4GeneralParticleSource explicitly in the master thread
 * (for example in G4VUserActionInitialization::BuildForMaster() and set the
 * defaults parameter there).
 */

};

#endif