SnapshotHandler.h

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#ifndef SNAPSHOTHANDLER_H
#define SNAPSHOTHANDLER_H

#include "../ETicketIssueLogicDefines.h"
#include "Snapshot.h"

namespace EM
{
    namespace TicketIssueLogic
    {
        class ETicketIssueLogicDataStorage;
        class DLL_API SnapshotHandler
        {

            class DataClass;
            DataClass *d;


        public:
            SnapshotHandler( ETicketIssueLogicDataStorage *dataStorage );
            virtual ~SnapshotHandler();



            EIssueLogicDefines::ReturnValues Init();


            EIssueLogicDefines::ReturnValues CheckIfRollbackOfOneWayTicketIsPossible( bool &rollbackPossible ) const;

            EIssueLogicDefines::ReturnValues CheckIfSnapshotIsRequired( bool &saveSnapshot ) const;

            EIssueLogicDefines::ReturnValues SaveSnapshot();

            EIssueLogicDefines::ReturnValues LoadSnapshot( const char *cardUID, const unsigned long ticketNumber, const Snapshot::SnapshotType type, EM::TicketIssueLogic::Snapshot &snapshot ) const;

            EIssueLogicDefines::ReturnValues RestoreTimeTicketFromSnapshot( const char *cardUID, const unsigned long ticketNumber );


            EIssueLogicDefines::ReturnValues RestoreOneWayTicketFromSnapshot( const char *cardUID, const unsigned long ticketNumber );
        };
    }
}

#endif //SNAPSHOTHANDLER_H