ScoreBasedAmbiguityResolutionAlg.h

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/*
  Copyright (C) 2002-2026 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef ACTSTRKFINDING_SCOREBASEDAMBIGUITYRESOLUTIONALG_H
#define ACTSTRKFINDING_SCOREBASEDAMBIGUITYRESOLUTIONALG_H 1
 
// Base Class
#include "AthenaBaseComps/AthReentrantAlgorithm.h"
 
#include "GeoPrimitives/GeoPrimitives.h"
// ACTS
#include "src/ScoreBasedSolverCutsImpl.h"
#include "Acts/AmbiguityResolution/ScoreBasedAmbiguityResolution.hpp"
#include "Acts/Definitions/Units.hpp"
#include "Acts/Utilities/Logger.hpp"
#include "ActsEvent/TrackContainer.h"
 
// Athena
#include "AthenaMonitoringKernel/GenericMonitoringTool.h"
#include "InDetRecToolInterfaces/IInDetEtaDependentCutsSvc.h"
 
// Handle Keys
#include "StoreGate/ReadHandleKey.h"
#include "StoreGate/WriteHandleKey.h"
 
namespace ActsTrk {
 
class ScoreBasedAmbiguityResolutionAlg : public AthReentrantAlgorithm {
 public:
  using AthReentrantAlgorithm::AthReentrantAlgorithm;
 
  virtual StatusCode initialize() override;
  virtual StatusCode finalize() override;
  virtual StatusCode execute(const EventContext &ctx) const override;
 
 private:
  ToolHandle<GenericMonitoringTool> m_monTool{this, "MonTool", "",
                                              "Monitoring tool"};
 
  SG::ReadHandleKey<ActsTrk::TrackContainer> m_tracksKey{
      this, "TracksLocation", "", "Input track collection"};
  SG::WriteHandleKey<ActsTrk::TrackContainer> m_resolvedTracksKey{
      this, "ResolvedTracksLocation", "",
      "Ambiguity resolved output track collection"};
 
  Gaudi::Property<double> m_minScore{this, "MinScore", 0.0,
                                     "Minimum score for track selection."};
  Gaudi::Property<double> m_minScoreSharedTracks{
      this, "MinScoreSharedTracks", 0.0,
      "Minimum score for shared track selection."};
  Gaudi::Property<std::size_t> m_maxSharedTracksPerMeasurement{
      this, "MaxSharedTracksPerMeasurement", 10,
      "Maximum number of shared tracks per measurement."};
  Gaudi::Property<std::size_t> m_maxShared{
      this, "MaxShared", 5, "Maximum number of shared hit per track."};
  Gaudi::Property<std::size_t> m_minUnshared{
      this, "MinUnshared", 5, "Minimum number of unshared hits per track."};
 
  Gaudi::Property<bool> m_useAmbiguityScoring{
      this, "UseAmbiguityScoring", false,
      "Flag to enable/disable ambiguity function."};
 
  Gaudi::Property<std::string> m_jsonFileName{
      this, "jsonFileName", "ScoreBasedAmbiguity_Config.json",
      "Name of the JSON file that contains the config file."};
 
  Gaudi::Property<bool> m_countSharedHits{this, "countSharedHits", true, "add shared hit flags to tracks"};
 
  std::unique_ptr<Acts::ScoreBasedAmbiguityResolution> m_ambi{nullptr};

  ServiceHandle<InDet::IInDetEtaDependentCutsSvc> m_etaDependentCutsSvc{
      this, "InDetEtaDependentCutsSvc", ""};
 
  public:
    enum EStat {
      kNInputTracks,
      kNResolvedTracks,
      kNSharedHits,
      kNStat
    };
 
  private:
    mutable std::array<std::atomic<unsigned int>, kNStat> m_stat ATLAS_THREAD_SAFE{};
};
 
}  // namespace ActsTrk
 
#endif