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//
// G4FilecoutDestination
//
// Class description:
//
// Implements a cout destination to a file.

//      ---------------- G4FilecoutDestination ----------------
//
// Author: A.Dotti (SLAC), April 2017
// --------------------------------------------------------------------
#ifndef G4FILECOUTDESTINATION_HH
#define G4FILECOUTDESTINATION_HH

#include <fstream>
#include <memory>

#include "G4coutDestination.hh"

class G4FilecoutDestination : public G4coutDestination
{
 public:
  explicit G4FilecoutDestination(
    const G4String& fname, std::ios_base::openmode mode = std::ios_base::app)
    : m_name(fname)
    , m_mode(mode)
    , m_output(nullptr)
  {}
  ~G4FilecoutDestination() override;

  void SetFileName(const G4String& fname) { m_name = fname; }

  void Open(std::ios_base::openmode mode = std::ios_base::app);
  // By default append to existing file
  void Close();

  G4int ReceiveG4debug(const G4String& msg) override;
  G4int ReceiveG4cout(const G4String& msg) override;
  G4int ReceiveG4cerr(const G4String& msg) override;

 private:
  G4String m_name;
  std::ios_base::openmode m_mode;
  std::unique_ptr<std::ofstream> m_output;
};

#endif