//
// ********************************************************************
// * License and Disclaimer                                           *
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//
//

#ifndef G4_FR_OFSTREAM_HH
#define G4_FR_OFSTREAM_HH

#include <fstream>

#include "globals.hh"

class G4FRofstream
{
 public:
  enum
  {
    SEND_BUFMAX = 1024
  };

 public:
  // constructors
  G4FRofstream() { flag_file_open = false; }
  G4FRofstream(const char* filename);

  // destructor
  virtual ~G4FRofstream();

  // open and close
  void Open(const char* filename);
  void Close();
  G4bool IsOpen() { return flag_file_open; }

  // utilities
  void SendLine(const char* string);  // save string with new line

  // static functions
  static G4bool DoesFileExist(const char* filename);

 protected:
  G4bool flag_file_open;
  std::ofstream fout;
};

inline void G4FRofstream::Open(const char* filename)
{
  if(!IsOpen())
  {
    fout.open(filename);
    flag_file_open = true;
  }
}

inline void G4FRofstream::Close()
{
  if(IsOpen())
  {
    fout.close();
    flag_file_open = false;
  }
}

inline void G4FRofstream::SendLine(const char* message)
{
  if(IsOpen())
  {
    fout << message << G4endl;
  }
}

inline G4bool G4FRofstream::DoesFileExist(const char* filename)
{
  G4bool status = false;

  std::ifstream fout_tmp(filename);
  if(fout_tmp)
  {
    status = true;
  }
  fout_tmp.close();

  return status;
}

inline G4FRofstream::G4FRofstream(const char* filename)
{
  flag_file_open = false;
  Open(filename);
}

inline G4FRofstream::~G4FRofstream() { Close(); }

#endif