#ifndef TGeomBase_hxx_seen
#define TGeomBase_hxx_seen

// c++ stl
#include <map>
#include <string>
#include <vector>

// oaGeomInfo
#include "EoaGeomInfo.hxx"
#include "IGeometryId.hxx"
#include "IGeomModuleBase.hxx"

// oaEvent
#include <IHit.hxx>

namespace COMET
{
    class IGeomBase;
    class IGeomInfo;
};

/// Base class for all the 'singleton-like' objects returned by IGeomInfo.
/// Each subdetector's geom object should inherit from this class.
class COMET::IGeomBase
{
     friend class IGeomInfo;
 
     public:
         /// Returns the number of detector modules held by the class
         int GetNumberOfModules() const { return GetModules().size(); }

         /// return the module geometry information corresponding 
         /// to the root geometry path string provided
         const IGeomModuleBase& GetModule(const char* geometry_path) const;

         const IGeomModuleBase& GetModule(COMET::IHandle<COMET::IHit> hit) const; 

         const IGeomModuleBase& GetModule(TVector3 global_position) const;

         const std::vector< IGeomModuleBase* >& GetModules() const { return fModules; }

    protected:
         IGeomBase(){}

         /// Destructor.
         /// Remember it is the derived class' responsibility to delete
         /// the memory it allocated to modules stored in fModules.
         virtual ~IGeomBase(){}

         std::vector< IGeomModuleBase* > fModules;

         /// Fill geometry information
         virtual void Fill();

         /// Clear geometry information
         virtual void Clear();

    private:
         IGeomBase(const IGeomBase& rhs);
         IGeomBase& operator=(const IGeomBase& rhs);
};
#endif