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// Author: Ivana Hrivnacova, 15/09/2020  (ivana@ipno.in2p3.fr)

#include "G4AnalysisUtilities.hh"

#include "tools/wroot/to"
#include "tools/wroot/file"
#include "toolx/zlib"

//_____________________________________________________________________________
template <typename HT>
G4bool G4RootHnFileManager<HT>::Write(
  tools::wroot::directory* directory, HT* ht, const G4String& htName)
{
  // write histogram
  return to(*directory, *ht, htName);
}

//_____________________________________________________________________________
template <typename HT>
G4bool G4RootHnFileManager<HT>::WriteExtra(
  HT* ht, const G4String& htName, const G4String& fileName)
{
  auto result = true;

  // // create a new file
  auto rfile = new tools::wroot::file(G4cout, fileName);
  // TO DO
  // rfile->add_ziper('Z', toolx::compress_buffer);
  // rfile->set_compression(fState.GetCompressionLevel());
  if (rfile == nullptr) return false;

  // no directory supported in this mode
  auto hdirectory = &(rfile->dir());
  if (hdirectory == nullptr) return false;

  // write histo
  result &= Write(hdirectory, ht, htName);

  // write file
  unsigned int n;
  result &= rfile->write(n);

  // close file
  rfile->close();

  return result;
}

//_____________________________________________________________________________
template <typename HT>
G4bool G4RootHnFileManager<HT>::Write(
  HT* ht, const G4String& htName, G4String& fileName)
{
  if ( fileName.empty()) {
    // should not happen
    G4cerr << "!!! Root file name not defined." << G4endl;
    G4cerr << "!!! Write " << htName << " failed." << G4endl;
    return false;
  }

  auto hdirectory = std::get<1>(*fFileManager->GetTFile(fileName));
  if ( hdirectory == nullptr ) {
    G4Analysis::Warn(
      "Failed to get Root file " + fileName + " histo directory.",
      fkClass, "Write");
    return false;
  }

  auto result = Write(hdirectory, ht, htName);
  fFileManager->LockDirectoryNames();
  return result;
}