/cvmfs/atlas.cern.ch/repo/sw/ASG/AnalysisBase/2.4.31/ElectronPhotonFourMomentumCorrection/ElectronPhotonFourMomentumCorrection/LArTemperatureCorrectionTool.h

#ifndef LARTEMPERATURECORRECTIONTOOL_H
#define LARTEMPERATURECORRECTIONTOOL_H

#include <string>
#include <map>
#include <memory>

#include <AsgTools/AsgMessaging.h>

#include <TFile.h>
#include <TTree.h>

class LArTemperatureCorrectionTool : public asg::AsgMessaging
{
public:
  struct AllValues { double barrel; double endcapA; double endcapC; };
  LArTemperatureCorrectionTool(std::string filename);
  AllValues get_corrections(int run) const;
  double get_correction_barrel(int run) const { return get_corrections(run).barrel; }
  double get_correction_endcapA(int run) const { return get_corrections(run).endcapA; }
  double get_correction_endcapC(int run) const { return get_corrections(run).endcapC; }
  int get_cache_size() const { return m_cache.size(); }
  int get_first_run() const { return m_first_run; }
  int get_last_run() const { return m_last_run; }
  AllValues base_temperature;
  AllValues sensitivity_temperature;
private:
  std::unique_ptr<TFile> m_file;
  TTree* m_tree;  // raw pointer, let ROOT manage it
  AllValues search_temperature(int run) const;
  AllValues search_correction(int run) const;
  mutable std::map<int, AllValues> m_cache;
  int m_first_run, m_last_run;
};

#endif

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