// Class:   RAT::AuxSimInfo
//
// Brief:   Singleton class to provide interface to exchange information
//          between PEnergy and G4RunManager
//
// Author:  W. Heintzelman <billh@hep.upenn.edu>
//
// REVISION HISTORY:
//      11/01/2018 : W Heintzelman - New class
//
// Detail: Auxiliary event simulations are initiated by PEnergy rather
//         than by G4RunManager, and hence the currentEvent pointer in
//         G4RunManager does not point to the auxiliary event.  If the
//         auxiliary Geant simulation must be aborted, G4RunManager needs to
//         have access to the auxiliary event pointer to set the abort status
//         and PEnergy must be able to test if the simulation failed.  This
//         class provides the interface to pass that information.
//
//         PEnergy calls SetSimType(true) and SetEventPointer before simulating
//         an auxiliary event.  G4RunManager calls SetSimEvtStatus(false) to
//         set the event status to failed if the event aborted.
//
/////////////////////////////////////////////////////////////////////////////

#ifndef __RAT_AuxSimInfo_
#define __RAT_AuxSimInfo_

#include <G4Event.hh>

namespace RAT {

class AuxSimInfo {
    public:
        static AuxSimInfo* GetAuxSimInfo();  // Returns singleton pointer
        ~AuxSimInfo();

        void SetSimType( bool simType );
        bool IsAuxSim();

        void SetEventPointer( G4Event* evtPtr);
        G4Event* GetEventPointer();

        void SetSimEvtStatus( bool evtStatus);
        bool IsSimEvtGood();

    private:
        AuxSimInfo();           // private because this is a singleton class
        static AuxSimInfo* fPtrSelf; // Pointer to singleton of this class

        bool fSimTypeFlag;      // true for an auxiliary simulation
        G4Event* fEvtPointer;   // pointer to auxiliary simulated event
        bool fEventGood;        // true if event simulation was successful
};
}
#endif