#ifndef OANALYSISDEFS_HXX
#define OANALYSISDEFS_HXX

#include <TObject.h>
#include <TParticlePDG.h>
#include <string>

namespace COMET
{
  class IoaAnalysisUtils;
};

/// Utility tools to be shared across oaAnalysis classes
///
/// Mostly bookkeeping routines to ensure consistency and
/// easy referencing
///
/// Unlike other packages and classes, the utilities in this
/// file must not depend on anything external (apart from ROOT
/// and STL etc)
/// also work from the ROOT CINT interpreter (or be fixable to
/// do so....)

/// Main IoaAnalysisUtils class
class COMET::IoaAnalysisUtils : public TObject
{

  public:

    enum ESubdetector
    {
      kFGD1 = 0,
      kFGD2,
      kP0D,
      kDsECal,
      kBrlECal,
      kP0DECal,
      kTPC1,
      kTPC2,
      kTPC3,
      kMRD,
      kOffAxis,                                                         /// the rest of the off-axis detector
      kINGRID,
      kCavern,
      kNSubdetectors
    };

    static ESubdetector PathToSubdetector(const std::string path);
    static std::string DetectorName(const ESubdetector subdet);

    enum EParticleCategory
    {
      kChargedLepton = 0,                                               // called "Lepton"
      kChargedBaryon,                                                   // called "Baryon"
      kChargedMeson,                                                    // called "Meson"
      kPhoton,                                                          // called "Photon"
      kOtherCharged,
      kOtherNeutral,
      kOther,                                                           // nuclei and stuff
      kNParticleCategories
    };

    static EParticleCategory PDGInfoToCategory(const TParticlePDG *pdgInfo);
    static EParticleCategory PDGToCategory(const Int_t pdg);
    static void UseCustomPDGTable();

    IoaAnalysisUtils();
    virtual ~IoaAnalysisUtils();

  private:

    ClassDef(IoaAnalysisUtils,1);
};
#endif                                                                  // OANALYSISDEFS_HXX