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// Author: Ivana Hrivnacova, 18/06/2013  (ivana@ipno.in2p3.fr)

#include "G4XmlNtupleManager.hh"
#include "G4XmlFileManager.hh"
#include "G4AnalysisManagerState.hh"
#include "G4AnalysisUtilities.hh"
#include "G4Threading.hh"
#include "G4UnitsTable.hh"

#include "tools/ntuple_booking"

#include <iostream>
//#include <cstdio>

using namespace G4Analysis;

//_____________________________________________________________________________
G4XmlNtupleManager::G4XmlNtupleManager(const G4AnalysisManagerState& state)
 : G4TNtupleManager<tools::waxml::ntuple>(state),
   fFileManager(nullptr)
{}

//_____________________________________________________________________________
G4XmlNtupleManager::~G4XmlNtupleManager()
{}

// 
// private methods
//

//_____________________________________________________________________________
void G4XmlNtupleManager::CreateTNtuple(
  G4TNtupleDescription<tools::waxml::ntuple>* ntupleDescription,
  const G4String& /*name*/, const G4String& /*title*/)
{
  // Create ntuple if the file is open (what means here that
  // a filename was already set)
  if ( fFileManager->GetFileName().size() ) {
    if ( fFileManager->CreateNtupleFile(ntupleDescription) ) {
      ntupleDescription->fNtuple 
        = new tools::waxml::ntuple(*(ntupleDescription->fFile));
           // ntuple object is deleted when closing a file
      fNtupleVector.push_back(ntupleDescription->fNtuple);       
    }       
  }
}

//_____________________________________________________________________________
void G4XmlNtupleManager::CreateTNtupleFromBooking(
  G4TNtupleDescription<tools::waxml::ntuple>* ntupleDescription)
{
    // create a file for this ntuple
    if ( ! fFileManager->CreateNtupleFile(ntupleDescription) ) return;

    // create ntuple
    ntupleDescription->fNtuple
      = new tools::waxml::ntuple(
              *(ntupleDescription->fFile), G4cerr, ntupleDescription->fNtupleBooking);
    fNtupleVector.push_back(ntupleDescription->fNtuple);  
}

//_____________________________________________________________________________
void G4XmlNtupleManager::FinishTNtuple(
  G4TNtupleDescription<tools::waxml::ntuple>* ntupleDescription,
  G4bool /*fromBooking*/)

{
  if ( ! ntupleDescription->fNtuple ) {
    CreateTNtupleFromBooking(ntupleDescription);
  }

  G4String path = "/";
  path.append(fFileManager->GetNtupleDirectoryName());
  ntupleDescription->fNtuple
    ->write_header(path, ntupleDescription->fNtupleBooking.name(), 
                   ntupleDescription->fNtupleBooking.title());  
  fFileManager->LockNtupleDirectoryName();
}