/afs/cern.ch/work/a/aaltunda/public/www/CMSSW_6_2_7/src/SimG4CMS/Forward/src/TotemT1Organization.cc

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// -*- C++ -*-
//
// Package:     Forward
// Class  :     TotemT1Organization
//
// Implementation:
//     <Notes on implementation>
//
// Original Author:  R. Capra
//         Created:  Tue May 16 10:14:34 CEST 2006
// $Id: TotemT1Organization.cc,v 1.1 2006/05/17 16:18:58 sunanda Exp $
//

// system include files

// user include files
#include "SimG4CMS/Forward/interface/TotemT1Organization.h"
#include "SimG4CMS/Forward/interface/TotemNumberMerger.h"
#include "FWCore/MessageLogger/interface/MessageLogger.h"

#include "G4VPhysicalVolume.hh"
#include "G4VTouchable.hh" 

//
// constructors and destructor
//
TotemT1Organization :: TotemT1Organization() :  _needUpdateUnitID(false),
                                                _needUpdateData(false),
                                                _currentUnitID(-1),
                                                _currentPlane(-1),
                                                _currentCSC(-1),
                                                _currentLayer(-1),
                                                _currentObjectType(Undefined) {

  edm::LogInfo("ForwardSim") << "Creating TotemT1Organization";
}

TotemT1Organization :: ~TotemT1Organization() {
}

//
// member functions
//

uint32_t TotemT1Organization :: GetUnitID(const G4Step* aStep) const {
  return const_cast<TotemT1Organization *>(this)->GetUnitID(aStep);
}


uint32_t TotemT1Organization :: GetUnitID(const G4Step* aStep) {

  int currLAOT;
  const G4VTouchable* touch = aStep->GetPreStepPoint()->GetTouchable();
  G4VPhysicalVolume* physVol;
  int ii =0;
  for ( ii = 0; ii < touch->GetHistoryDepth(); ii++ ){
    physVol = touch->GetVolume(ii);

#ifdef SCRIVI
    LogDebug("ForwardSim") << "physVol=" << physVol->GetName()
                           << ", level=" << ii  << ", physVol->GetCopyNo()=" 
                           << physVol->GetCopyNo();
#endif

    if(physVol->GetName() == "TotemT1" && 
       physVol->GetCopyNo()==1) _currentDetectorPosition = 1;
    if(physVol->GetName() == "TotemT1" && 
       physVol->GetCopyNo()==2) _currentDetectorPosition = 2;
  }

  touch = aStep->GetPreStepPoint()->GetTouchable();
  physVol=touch->GetVolume(0);
 
  currLAOT=physVol->GetCopyNo();
  _currentObjectType=static_cast<ObjectType>(currLAOT%MaxObjectTypes);
  _currentLayer=currLAOT/MaxObjectTypes;
  _currentPlane=-1;
  _currentCSC=-1;

  if (touch->GetVolume(1)) {
    _currentCSC=touch->GetVolume(1)->GetCopyNo();
    if (touch->GetVolume(2)) _currentPlane=touch->GetVolume(2)->GetCopyNo();
  }
#ifdef SCRIVI
  LogDebug("ForwardSim") << "CURRENT CSC "<<_currentCSC << "\n"
                         << "CURRENT PLANE "<<_currentPlane;
#endif
  _needUpdateUnitID=true;
  return GetCurrentUnitID();
}

int TotemT1Organization :: GetCurrentUnitID(void) const {

  _checkUnitIDUpdate();
#ifdef SCRIVI
 LogDebug("ForwardSim") << "GetCurrentUnitID()=" << _currentUnitID;
                                             << endl;
#endif
 return _currentUnitID;
}

void TotemT1Organization :: SetCurrentUnitID(int currentUnitID) {

#ifdef SCRIVI
  LogDebug("ForwardSim") << "_currentUnitID=" << currentUnitID;
#endif
  _currentUnitID=currentUnitID;
  _needUpdateData=true;
}

int  TotemT1Organization :: GetCurrentDetectorPosition(void) const {

  _checkDataUpdate();
#ifdef SCRIVI
  LogDebug("ForwardSim") << "GetCurrentDetectorPosition()=" 
                         << _currentDetectorPosition;
#endif
 return _currentDetectorPosition;
}

void TotemT1Organization :: SetCurrentDetectorPosition(int currentDetectorPosition) {

#ifdef SCRIVI
  LogDebug("ForwardSim") << "_currentDetectorPosition=" << currentDetectorPosition;
#endif
  _currentDetectorPosition=currentDetectorPosition;
  _needUpdateUnitID=true;
}

int TotemT1Organization :: GetCurrentPlane(void) const {

  _checkDataUpdate();

#ifdef SCRIVI
  LogDebug("ForwardSim") << "GetCurrentPlane()=" << _currentPlane;
#endif
 return _currentPlane;
}

void TotemT1Organization :: SetCurrentPlane(int currentPlane) {

#ifdef SCRIVI
  LogDebug("ForwardSim") << "_currentPlane=" << currentPlane;
#endif
  _currentPlane=currentPlane;
  _needUpdateUnitID=true;
}

int TotemT1Organization :: GetCurrentCSC(void) const {

  _checkDataUpdate();
#ifdef SCRIVI
  LogDebug("ForwardSim") << "GetCurrentCSC()=" << _currentCSC;
#endif 
 return _currentCSC;
}

void TotemT1Organization :: SetCurrentCSC(int currentCSC) {

#ifdef SCRIVI
  LogDebug("ForwardSim") << "_currentCSC=" << currentCSC;
#endif
  _currentCSC=currentCSC;
  _needUpdateUnitID=true; 
}

int TotemT1Organization :: GetCurrentLayer(void) const {

  _checkDataUpdate();
#ifdef SCRIVI
  LogDebug("ForwardSim") << "GetCurrentLayer()=" << _currentLayer;
#endif
  return _currentLayer;
}

void TotemT1Organization :: SetCurrentLayer(int currentLayer) {

#ifdef SCRIVI
  LogDebug("ForwardSim") << "_currentLayer=" << currentLayer;
#endif
  _currentLayer=currentLayer;
  _needUpdateUnitID=true;
}

TotemT1Organization::ObjectType  TotemT1Organization :: GetCurrentObjectType(void) const {
  
 _checkDataUpdate();
#ifdef SCRIVI
 LogDebug("ForwardSim") << "GetCurrentObjectType()=" << _currentObjectType;
#endif
 return _currentObjectType;
}

void TotemT1Organization :: SetCurrentObjectType(ObjectType currentObjectType){

#ifdef SCRIVI
  LogDebug("ForwardSim") << "_currentObjectType=" << currentObjectType;
#endif
  _currentObjectType=currentObjectType;
  _needUpdateUnitID=true;
}

int TotemT1Organization :: FromObjectTypeToInt(ObjectType objectType) {

  int result(static_cast<int>(objectType));
  if (result<0 || result>=MaxObjectTypes) {
    result = 0;
    edm::LogInfo("ForwardSim") << "Invalid ObjectType value (" << objectType
                               << "). Now is \"Undefined\"";
  }
  return result;
}

int TotemT1Organization :: FromObjectTypeToInt(ObjectType objectType, int layer) {
  return FromObjectTypeToInt(objectType)+layer*MaxObjectTypes;
}


//
// private member functions
//

void TotemT1Organization :: _checkUnitIDUpdate(void) const {
  if (_needUpdateUnitID) {
#ifdef SCRIVI
    LogDebug("ForwardSim") << "UnitID update needed.";
#endif
    const_cast<TotemT1Organization *>(this)->_FromDataToUnitID();
  } else {
#ifdef SCRIVI
    LogDebug("ForwardSim") << "UnitID update not needed.";
#endif
  }
}

void TotemT1Organization :: _checkDataUpdate(void) const {

  if (_needUpdateData) {
#ifdef SCRIVI
    LogDebug("ForwardSim") << "Data update needed.";
#endif
    const_cast<TotemT1Organization *>(this)->_FromUnitIDToData();
  } else {
#ifdef SCRIVI
    LogDebug("ForwardSim") << "Data update not needed.";
#endif
  }
}

void TotemT1Organization :: _FromUnitIDToData(void) {

  int currDP, currCSC, currOT, currPLA;
  unsigned long currPL, currLA;
 
  // currDP:  0..4 (5)
  // currPL:  0..infty
  // currCSC: 0..6 (7)
  // currLA:  0..infty
  // currOT:  0..MaxObjectTypes-1 (MaxObjectTypes)

  currDP  = (_currentUnitID/100000) % 5;// 3;
  currCSC = (_currentUnitID/5)%7;
  currOT  = (_currentUnitID/(5*7))%MaxObjectTypes;
  currPLA =  _currentUnitID/(5*7*MaxObjectTypes);
 
  TotemNumberMerger splitter;
  splitter.Split(currPLA,currPL,currLA);
 
#ifdef SCRIVI
  LogDebug("ForwardSim") << "currDP=" << currDP << ", currPL=" << currPL  
                         << ", currCSC=" << currCSC << ", currLA=" << currLA  
                         << ", currOT=" << currOT << ", currPLA=" << currPLA  
                         << ", _currentUnitID=" << _currentUnitID;
#endif
  _currentPlane=currPL-1;
  _currentCSC=currCSC-1;
  _currentLayer=currLA-1;
  _currentObjectType=static_cast<ObjectType>(currOT);

  switch(currDP) {
  case 0: 
    _currentDetectorPosition=0;
    break;
  case 1: 
    _currentDetectorPosition=1;
    break;
  case 2: 
    _currentDetectorPosition=2;
    break;
  case 3:
    _currentDetectorPosition=3;
    break;
  case 4:
    _currentDetectorPosition=4;
    break;
  } 
  _needUpdateData=false;
}

void TotemT1Organization :: _FromDataToUnitID(void) {
  int currDP, currPL, currCSC, currLA, currOT;
#ifdef SCRIVI
  LogDebug("ForwardSim") << " CURRENT DETECTOR POSITION (0-3) " 
                         <<_currentDetectorPosition;
#endif
  switch(_currentDetectorPosition)  {
  case 0:
    currDP=0;
    break;
  case 1:
    currDP=1;
    break;
  case 2:
    currDP=2;
    break;
  case 3:
    currDP=3;
    break;
  case 4:
    currDP=4;
    break;
  default:
    _currentDetectorPosition=0;
    currDP=0;
    edm::LogInfo("ForwardSim") << "Invalid _currentDetectorPosition value (" 
                               << _currentDetectorPosition
                               << "). Now is \"Undefined\"";
  }
 
  if (_currentPlane<-1) {
    edm::LogInfo("ForwardSim") << "Invalid _currentPlane value (" 
                               << _currentPlane << "). Now is -1";
    _currentPlane=-1;
  }
  currPL=_currentPlane+1;
  
  if (_currentCSC<-1 || _currentCSC>5)  {
    edm::LogInfo("ForwardSim") << "Invalid _currentCSC value (" << _currentCSC
                               << "). Now is -1";
    _currentCSC=-1;
  }
  currCSC=_currentCSC+1;
  
  if (_currentLayer<-1)  {
    edm::LogInfo("ForwardSim") << "Invalid _currentLayer value (" 
                               << _currentLayer << "). Now is -1";
    _currentLayer=-1;
  }
  currLA=_currentLayer+1;
 
  currOT=FromObjectTypeToInt(_currentObjectType);
 
  // currDP:  0..2 (3)
  // currPL:  0..infty
  // currCSC: 0..6 (7)
  // currLA:  0..infty
  // currOT:  0..MaxObjectTypes-1 (MaxObjectTypes)

  TotemNumberMerger merger;
  int currPLA(merger.Merge(currPL,currLA));
 
  _currentUnitID=currDP*100000+5*(currCSC+7*(currOT+MaxObjectTypes*(currPLA)));
#ifdef SCRIVI
  LogDebug("ForwardSim") << "currDP=" << currDP << ", currPL=" << currPL  
                         << ", currCSC=" << currCSC << ", currLA=" << currLA  
                         << ", currOT=" << currOT << ", currPLA=" << currPLA  
                         << ", _currentUnitID=" << _currentUnitID;
#endif
 
  _needUpdateUnitID=false;
}