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//
// $Id: G4VScoreWriter.cc,v 1.10 2010/07/27 01:44:54 akimura Exp $
// GEANT4 tag $Name:  $
//

#include "G4VScoreWriter.hh"

#include "G4MultiFunctionalDetector.hh"
#include "G4SDParticleFilter.hh"
#include "G4VPrimitiveScorer.hh"
#include "G4VScoringMesh.hh"

#include <map>
#include <fstream>

G4VScoreWriter::G4VScoreWriter()
  : fScoringMesh(0), verboseLevel(0) {
  ;
}

G4VScoreWriter::~G4VScoreWriter() {
}

void G4VScoreWriter::SetScoringMesh(G4VScoringMesh * sm) {
    fScoringMesh = sm;
    fScoringMesh->GetNumberOfSegments(fNMeshSegments);
}

void G4VScoreWriter::DumpQuantityToFile(G4String & psName, G4String & fileName, G4String & option) {

  // change the option string into lowercase to the case-insensitive.
  G4String opt = option;
  std::transform(opt.begin(), opt.end(), opt.begin(), (int (*)(int))(tolower));

  // confirm the option
  if(opt.size() == 0) opt = "csv";
  if(opt.find("csv") == std::string::npos &&
     opt.find("sequence") == std::string::npos) {
    G4cerr << "ERROR : DumpToFile : Unknown option -> "
	   << option << G4endl;
    return;
  }

  // open the file
  std::ofstream ofile(fileName);
  if(!ofile) {
    G4cerr << "ERROR : DumpToFile : File open error -> "
	   << fileName << G4endl;
    return;
  }
  ofile << "# mesh name: " << fScoringMesh->GetWorldName() << G4endl;

  
  // retrieve the map
  MeshScoreMap fSMap = fScoringMesh->GetScoreMap();
  

  MeshScoreMap::const_iterator msMapItr = fSMap.find(psName);
  if(msMapItr == fSMap.end()) {
    G4cerr << "ERROR : DumpToFile : Unknown quantity, \""
	   << psName << "\"." << G4endl;
    return;
  }


  std::map<G4int, G4double*> * score = msMapItr->second->GetMap();
  ofile << "# primitive scorer name: " << msMapItr->first << std::endl;


  G4double unitValue = fScoringMesh->GetPSUnitValue(psName);
  G4String unit = fScoringMesh->GetPSUnit(psName);
  G4String divisionAxisNames[3];
  fScoringMesh->GetDivisionAxisNames(divisionAxisNames);
  // index order
  ofile << "# i" << divisionAxisNames[0]
	<< ", i" << divisionAxisNames[1]
	<< ", i" << divisionAxisNames[2];
  // unit of scored value
  ofile << ", value ";
  if(unit.size() > 0) ofile << "[" << unit << "]";
  ofile << G4endl;

  // "sequence" option: write header info 
  if(opt.find("sequence") != std::string::npos) {
    ofile << fNMeshSegments[0] << " " << fNMeshSegments[1] << " " << fNMeshSegments[2]
	  << G4endl;
  }

  // write quantity
  long count = 0;
  ofile << std::setprecision(16); // for double value with 8 bytes
  for(int x = 0; x < fNMeshSegments[0]; x++) {
    for(int y = 0; y < fNMeshSegments[1]; y++) {
      for(int z = 0; z < fNMeshSegments[2]; z++) {
	G4int idx = GetIndex(x, y, z);
	
	if(opt.find("csv") != std::string::npos)
	  ofile << x << "," << y << "," << z << ",";

	std::map<G4int, G4double*>::iterator value = score->find(idx);
	if(value == score->end()) {
	  ofile << 0.;
	} else {
	  ofile << *(value->second)/unitValue;
	}

	if(opt.find("csv") != std::string::npos) {
	  ofile << G4endl;
	} else if(opt.find("sequence") != std::string::npos) {
	  ofile << " ";
	  if(count++%5 == 4) ofile << G4endl;
	}

      } // z
    } // y
  } // x
  ofile << std::setprecision(6);

  // close the file
  ofile.close();
  
}

void G4VScoreWriter::DumpAllQuantitiesToFile(G4String & fileName, G4String & option) {

  // change the option string into lowercase to the case-insensitive.
  G4String opt = option;
  std::transform(opt.begin(), opt.end(), opt.begin(), (int (*)(int))(tolower));

  // confirm the option
  if(opt.size() == 0) opt = "csv";
  if(opt.find("csv") == std::string::npos &&
     opt.find("sequence") == std::string::npos) {
    G4cerr << "ERROR : DumpToFile : Unknown option -> "
	   << option << G4endl;
    return;
  }

  // open the file
  std::ofstream ofile(fileName);
  if(!ofile) {
    G4cerr << "ERROR : DumpToFile : File open error -> "
	   << fileName << G4endl;
    return;
  }
  ofile << "# mesh name: " << fScoringMesh->GetWorldName() << G4endl;

  // retrieve the map
  MeshScoreMap fSMap = fScoringMesh->GetScoreMap();
  MeshScoreMap::const_iterator msMapItr = fSMap.begin();
  std::map<G4int, G4double*> * score;
  for(; msMapItr != fSMap.end(); msMapItr++) {

    G4String psname = msMapItr->first;

    score = msMapItr->second->GetMap();
    ofile << "# primitive scorer name: " << msMapItr->first << std::endl;

    G4double unitValue = fScoringMesh->GetPSUnitValue(psname);
    G4String unit = fScoringMesh->GetPSUnit(psname);
    G4String divisionAxisNames[3];
    fScoringMesh->GetDivisionAxisNames(divisionAxisNames);
    // index order
    ofile << "# i" << divisionAxisNames[0]
	  << ", i" << divisionAxisNames[1]
	  << ", i" << divisionAxisNames[2];
    // unit of scored value
    ofile << ", value ";
    if(unit.size() > 0) ofile << "[" << unit << "]";
    ofile << G4endl;


    // "sequence" option: write header info 
    if(opt.find("sequence") != std::string::npos) {
      ofile << fNMeshSegments[0] << " " << fNMeshSegments[1] << " " << fNMeshSegments[2]
	    << G4endl;
    }

    // write quantity
    long count = 0;
    ofile << std::setprecision(16); // for double value with 8 bytes
    for(int x = 0; x < fNMeshSegments[0]; x++) {
      for(int y = 0; y < fNMeshSegments[1]; y++) {
	for(int z = 0; z < fNMeshSegments[2]; z++) {
	  G4int idx = GetIndex(x, y, z);
	  
	  if(opt.find("csv") != std::string::npos)
	    ofile << x << "," << y << "," << z << ",";
	  
	  std::map<G4int, G4double*>::iterator value = score->find(idx);
	  if(value == score->end()) {
	    ofile << 0.;
	  } else {
	    ofile << *(value->second)/unitValue;
	  }

	  if(opt.find("csv") != std::string::npos) {
	    ofile << G4endl;
	  } else if(opt.find("sequence") != std::string::npos) {
	    ofile << " ";
	    if(count++%5 == 4) ofile << G4endl;
	  }

	} // z
      } // y
    } // x
    ofile << std::setprecision(6);

  } // for(; msMapItr ....)

  // close the file
  ofile.close();
  
}

G4int G4VScoreWriter::GetIndex(G4int x, G4int y, G4int z) const {
    //return x + y*fNMeshSegments[0] + z*fNMeshSegments[0]*fNMeshSegments[1];
    return x*fNMeshSegments[1]*fNMeshSegments[2] +y*fNMeshSegments[2]+z;
}