#include "DetectorConstruction.hh"
#include "ActionInitialization.hh"
#include "PhysicsList.hh"
#include "PhysicsListMessenger.hh"
#include "G4ScoringManager.hh"
#include "G4VScoringMesh.hh"
#include "G4VScoreWriter.hh"
#include "globals.hh"
#include "StackingAction.hh"
#include "PrimaryGeneratorAction.hh"
#include "SteppingAction.hh"
#include "RunAction.hh"
#include "EventAction.hh"

#include "G4RunManagerFactory.hh"
#include "G4UImanager.hh"
#include "G4VisExecutive.hh"
#include "G4UIExecutive.hh"
#include "Randomize.hh"
#include "g4analysis.hh"  
#include "G4MTRunManager.hh"
#include <ctime> // Include for time()

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

int main(int argc, char** argv)
{
    // Detect interactive mode (if no arguments) and define UI session
    G4UIExecutive* ui = 0;
    if (argc == 1) {
        ui = new G4UIExecutive(argc, argv);
    }

    // Use the factory to create a run manager for multithreading
    auto* runManager = G4RunManagerFactory::CreateRunManager(G4RunManagerType::Default);

    // Set the number of threads to use
    runManager->SetNumberOfThreads(48);

    // Set up the random number generator
    G4Random::setTheEngine(new CLHEP::MTwistEngine);
    G4Random::setTheSeed(time(NULL));

    // Activate command-based scoring functionality
    G4ScoringManager* scManager = G4ScoringManager::GetScoringManager();
    scManager->SetVerboseLevel(1);

    // Set mandatory initialization classes
    runManager->SetUserInitialization(new DetectorConstruction());
    runManager->SetUserInitialization(new PhysicsList());
    runManager->SetUserInitialization(new ActionInitialization());

    // Initialize visualization
    G4VisManager* visManager = new G4VisExecutive();
    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 {
        // interactive mode
        UImanager->ApplyCommand("/control/execute init_vis.mac");
        ui->SessionStart();
        delete ui;
    }

    delete visManager;
    delete runManager;
}