IMuonSystemExtensionTool.h

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/*
  Copyright (C) 2002-2021 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef MUON_IMUONSYSTEMEXTENSIONTOOL_H
#define MUON_IMUONSYSTEMEXTENSIONTOOL_H

 
#include <map>
#include <optional>
#include <set>
 
#include "GaudiKernel/IAlgTool.h"
#include "MuonStationIndex/MuonStationIndex.h"
#include "xAODTracking/TrackParticle.h"
#include "TrkCaloExtension/CaloExtensionCollection.h"
#include "MuonLayerEvent/MuonSystemExtension.h"
 
namespace MuonCombined {
    class InDetCandidate;
    class TagBase;
}
namespace Muon {
   
    class IMuonSystemExtensionTool : virtual public IAlgTool {
    public:
        virtual ~IMuonSystemExtensionTool() = default;

        static const InterfaceID& interfaceID() {
            static const InterfaceID IID_IMuonSystemExtensionTool("Muon::IMuonSystemExtensionTool", 1, 0);
            return IID_IMuonSystemExtensionTool;
        }

        struct SystemExtensionCache {
            
            std::unique_ptr<MuonCombined::InDetCandidate> candidate;
            const std::map<MuonStationIndex::DetectorRegionIndex, std::set<int>>* sectorsWithHits{nullptr};
            const CaloExtensionCollection* extensionContainer{nullptr};
            bool useHitSectors{false};            
            bool createSystemExtension{true};
            bool requireSystemExtension{false};
        };

        virtual bool muonSystemExtension(const EventContext& ctx, SystemExtensionCache& cache) const = 0;

        virtual bool muonLayerInterSections(const EventContext& ctx, 
                                            const MuonCombined::TagBase& cmb_tag,
                                            SystemExtensionCache& cache) const = 0;
    };
 
}  // namespace Muon
 
#endif