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//
/// \file field/field03/field03.cc
/// \brief Main program of the field/field03 example
//
//
//
//
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#include "G4Types.hh"

#ifdef G4MULTITHREADED
#include "G4MTRunManager.hh"
#else
#include "F03SteppingVerbose.hh"
#include "G4RunManager.hh"
#endif

#include "F03DetectorConstruction.hh"
#include "F03ActionInitialization.hh"

#include "G4UImanager.hh"
#include "FTFP_BERT.hh"
#include "G4StepLimiterPhysics.hh"
#include "Randomize.hh"

#include "G4VisExecutive.hh"
#include "G4UIExecutive.hh"

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int main(int argc,char** argv)
{
  // Instantiate G4UIExecutive if there are no arguments (interactive mode)
  G4UIExecutive* ui = nullptr;
  if ( argc == 1 ) {
    ui = new G4UIExecutive(argc, argv);
  }

  // Choose the Random engine
  //
  G4Random::setTheEngine(new CLHEP::RanecuEngine);

  // Construct the default run manager
  //
#ifdef G4MULTITHREADED
  G4MTRunManager * runManager = new G4MTRunManager;
#else
  G4VSteppingVerbose::SetInstance(new F03SteppingVerbose);
  G4RunManager * runManager = new G4RunManager;
#endif

  // Set mandatory initialization classes
  //
  // Detector construction
  F03DetectorConstruction* detector = new F03DetectorConstruction();
  runManager->SetUserInitialization(detector);
  // Physics list
  G4VModularPhysicsList* physicsList = new FTFP_BERT;
  physicsList->RegisterPhysics(new G4StepLimiterPhysics());
  runManager->SetUserInitialization(physicsList);
  // User action initialization
  runManager->SetUserInitialization(new F03ActionInitialization(detector));

  // Initialize G4 kernel
  //
  runManager->Initialize();

  // Initialize visualization
  //
  G4VisManager* visManager = new G4VisExecutive;
  // G4VisExecutive can take a verbosity argument - see /vis/verbose guidance.
  // G4VisManager* visManager = new G4VisExecutive("Quiet");
  visManager->Initialize();

  // Get the pointer to the User Interface manager
  //
  G4UImanager* UImanager = G4UImanager::GetUIpointer();

  if (!ui)   // batch mode
    {
      G4String command = "/control/execute ";
      G4String fileName = argv[1];
      UImanager->ApplyCommand(command+fileName);
    }
  else
    {
     UImanager->ApplyCommand("/control/execute init_vis.mac");
     if (ui->IsGUI())
       UImanager->ApplyCommand("/control/execute gui.mac");
     ui->SessionStart();
     delete ui;
    }

  // Job termination
  // Free the store: user actions, physics_list and detector_description are
  //                 owned and deleted by the run manager, so they should not
  //                 be deleted in the main() program !

  delete visManager;
  delete runManager;

  return 0;
}

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