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//
// G4UIsession
//
// Class description:
//
// This is a base class of all (G)UI sessions.
// SessionStart() method should be called to start the session

// Author: Makoto Asai, 1998
// --------------------------------------------------------------------
#ifndef G4UIsession_hh
#define G4UIsession_hh 1

#include "G4coutDestination.hh"
#include "globals.hh"
#include "icomsdefs.hh"

class G4UIsession : public G4coutDestination
{
  public:

    G4UIsession();
    G4UIsession(G4int iBatch);
    ~G4UIsession() override;

    virtual G4UIsession* SessionStart();
      // This method will be invoked by main().
      // Optionally, it can be invoked by another session

    virtual void PauseSessionStart(const G4String& Prompt);
      // This method will be invoked by G4UImanager
      // when the kernel comes to Pause state

    G4int ReceiveG4cout(const G4String& coutString) override;
    G4int ReceiveG4cerr(const G4String& cerrString) override;
    // These two methods will be invoked by G4strstreambuf

    static G4int InSession();
    inline G4int GetLastReturnCode() const { return lastRC; }

  protected:

    G4ICOMS_DLL static G4int inSession;
    G4int ifBatch = 0;
    G4int lastRC = 0;
};

#endif