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// John Allison  22nd August 2018.
// An artificial scene to find the properties of a touchable.

#include "G4TouchablePropertiesScene.hh"

//#include "G4PhysicalVolumeModel.hh"

G4TouchablePropertiesScene::G4TouchablePropertiesScene
(G4PhysicalVolumeModel* pSearchPVModel,
 const G4ModelingParameters::PVNameCopyNoPath& requiredTouchable)
:fpSearchPVModel(pSearchPVModel)
,fRequiredTouchable(requiredTouchable)
{}

G4TouchablePropertiesScene::~G4TouchablePropertiesScene () {}

void G4TouchablePropertiesScene::ProcessVolume (const G4VSolid& /*solid*/) {

  const std::vector<G4PhysicalVolumeModel::G4PhysicalVolumeNodeID>&
  fullPVPath = fpSearchPVModel->GetFullPVPath();

  if (fRequiredTouchable.size() == fullPVPath.size()) {
    G4ModelingParameters::PVNameCopyNoPathConstIterator iNameCopyNo;
    std::vector<G4PhysicalVolumeModel::G4PhysicalVolumeNodeID>::const_iterator
    iPVNodeId;
    for (iNameCopyNo = fRequiredTouchable.begin(), iPVNodeId = fullPVPath.begin();
         iNameCopyNo != fRequiredTouchable.end();
         ++iNameCopyNo, ++iPVNodeId) {
      if (!(
            iNameCopyNo->GetName() ==
            iPVNodeId->GetPhysicalVolume()->GetName() &&
            iNameCopyNo->GetCopyNo() ==
            iPVNodeId->GetPhysicalVolume()->GetCopyNo()
            )) {
        break;
      }
    }
    if (iNameCopyNo == fRequiredTouchable.end()) {
      fFoundTouchableProperties.fTouchablePath            = fRequiredTouchable;
      fFoundTouchableProperties.fpTouchablePV             = fpSearchPVModel->GetCurrentPV();
      fFoundTouchableProperties.fTouchableGlobalTransform = *fpSearchPVModel->GetCurrentTransform();
      fFoundTouchableProperties.fTouchableBaseFullPVPath  = fpSearchPVModel->GetFullPVPath();
      // Base path is one down from found PV
      fFoundTouchableProperties.fTouchableBaseFullPVPath.pop_back();
      fpSearchPVModel->Abort();  // No need to look further.
    }
  }
}