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// $Id: G4tgrFileReader.cc,v 1.4 2008/11/12 08:44:07 arce Exp $
// GEANT4 tag $Name: geant4-09-02-ref-02 $
//
//
// class G4tgrFileReader

// History:
// - Created.                                 P.Arce, CIEMAT (November 2007)
// -------------------------------------------------------------------------

#include "G4tgrFileReader.hh"
#include "G4tgrParameterMgr.hh"
#include "G4tgrFileIn.hh"
#include "G4tgrElementSimple.hh"
#include "G4tgrElementFromIsotopes.hh"
#include "G4tgrVolume.hh"
#include "G4tgrPlaceDivRep.hh"
#include "G4tgrPlaceParameterisation.hh"
#include "G4tgrVolumeDivision.hh"
#include "G4tgrVolumeMgr.hh"
#include "G4tgrUtils.hh"
#include "G4tgrMaterialFactory.hh"
#include "G4tgrRotationMatrixFactory.hh"
#include "G4tgrLineProcessor.hh"
#include "G4tgrMessenger.hh"


G4tgrFileReader* G4tgrFileReader::theInstance = 0;


//---------------------------------------------------------------
G4tgrFileReader::G4tgrFileReader()
{
  theLineProcessor = new G4tgrLineProcessor;
}


//---------------------------------------------------------------
G4tgrFileReader::~G4tgrFileReader()
{
  delete theInstance;
}


//---------------------------------------------------------------
G4tgrFileReader* G4tgrFileReader::GetInstance()
{
  if( !theInstance ) {
    theInstance = new G4tgrFileReader;
  }
  return theInstance;
}

//---------------------------------------------------------------
G4bool G4tgrFileReader::ReadFiles() 
{

  std::vector< G4String > wl,wlnew;
    
#ifdef G4VERBOSE
  if( G4tgrMessenger::GetVerboseLevel() >= 2 )
  {
    G4cout << "   Number of geometry data files = " << theTextFiles.size()
           << G4endl;
  }
#endif

  if( theTextFiles.size() == 0 )
  {
    G4Exception("G4tgrFileReader::ReadFiles()", "InvalidInput",
                FatalException, "No files to read ...");
  }

  for( size_t ii = 0; ii < theTextFiles.size(); ii++ )
  {
#ifdef G4VERBOSE
    if( G4tgrMessenger::GetVerboseLevel() >= 1 )
    {
      G4cout << "   Reading data file " << theTextFiles[ii] << G4endl;
    }
#endif
    
    G4tgrFileIn fin = G4tgrFileIn::GetInstance( theTextFiles[ii] );
    
    G4int nlines = 0;
    for(;;)
    {
      nlines++;
      if(! fin.GetWordsInLine( wlnew ) )  { break; }
      // Check if it is continuation line or first line
      if( wlnew[0].c_str()[0] != ':' )
      {
        wl.insert( wl.end(), wlnew.begin(), wlnew.end() );
#ifdef G4VERBOSE
        if( G4tgrMessenger::GetVerboseLevel() >= 4 )
        {
          G4tgrUtils::DumpVS(wl, "!!!! adding line");
        }
#endif
        continue;
      }
      else
      {
        //----- Process previous tag
#ifdef G4VERBOSE
        if( G4tgrMessenger::GetVerboseLevel() >= 4 )
        {
          G4tgrUtils::DumpVS(wl, "!!!! line read");
        }
#endif
        if( nlines != 1)   // first line has no previous tag
        {
          if( ! theLineProcessor->ProcessLine( wl ) )
          {
            fin.DumpException( "Tag not found: " + wl[0]);
          }
        }
        wl = wlnew;
      }
    }
    
    if( wl.size() != 0 )
    {
      if( ! theLineProcessor->ProcessLine( wl ) )
      {
        fin.DumpException( "Tag not found: " + wl[0]);
      }
    }
  }  
  return 1;
}