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/// \file PhantomSD.cc
/// \brief Implementation of the PhantomSD class

// -------------------------------------------------------------
//
//
//      ---------- PhantomSD -------------
//
//  Modified:
//
// -------------------------------------------------------------

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#include "PhantomSD.hh"

#include "Run.hh"

#include "G4HCofThisEvent.hh"
#include "G4RunManager.hh"
#include "G4Step.hh"
#include "G4SystemOfUnits.hh"
#include "G4TouchableHistory.hh"

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PhantomSD::PhantomSD(const G4String& name) : G4VSensitiveDetector(name), fShiftZ(0.0), fCounter(0)
{}

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PhantomSD::~PhantomSD() {}

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void PhantomSD::Initialize(G4HCofThisEvent*)
{
  Run* run = static_cast<Run*>(G4RunManager::GetRunManager()->GetNonConstCurrentRun());

  ++fCounter;
  if (run->GetVerbose()) {
    G4cout << "PhantomSD: Begin Of Event # " << fCounter << G4endl;
  }
}

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G4bool PhantomSD::ProcessHits(G4Step* aStep, G4TouchableHistory*)
{
  Run* run = static_cast<Run*>(G4RunManager::GetRunManager()->GetNonConstCurrentRun());

  G4double edep = aStep->GetTotalEnergyDeposit();

  // only if there is energy deposition
  if (0.0 < edep) {
    G4ThreeVector p1 = aStep->GetPreStepPoint()->GetPosition();
    G4ThreeVector p2 = aStep->GetPostStepPoint()->GetPosition();
    G4double x1 = p1.x();
    G4double y1 = p1.y();
    G4double z1 = p1.z() - fShiftZ;
    G4double r1 = std::sqrt(x1 * x1 + y1 * y1);
    G4double x2 = p2.x();
    G4double y2 = p2.y();
    G4double z2 = p2.z() - fShiftZ;
    G4double r2 = std::sqrt(x2 * x2 + y2 * y2);
    G4double x0 = 0.5 * (x1 + x2);
    G4double y0 = 0.5 * (y1 + y2);
    G4double z0 = 0.5 * (z1 + z2);
    G4double r0 = std::sqrt(x0 * x0 + y0 * y0);

    run->AddPhantomStep(edep, r1, z1, r2, z2, r0, z0);

    if (run->GetVerbose()) {
      G4cout << "PhantomSD: energy = " << edep / MeV
             << " MeV is deposited at the step at r1,z1= " << r1 << " " << z1 << "; r2,z2= " << r2
             << " " << z2 << G4endl;
    }
  }

  return true;
}

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void PhantomSD::EndOfEvent(G4HCofThisEvent*) {}

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void PhantomSD::clear() {}

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void PhantomSD::PrintAll() {}

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