#ifndef TCTHChannelMap_hxx
#define TCTHChannelMap_hxx

#include "IChannelMap.hxx"

#include "ICTHChannelId.hxx"

class ICTHChannelMap;

namespace COMET {
  class ICTHChannelMap;
}

/// Class for CTH channel to geometry lookup
class COMET::ICTHChannelMap : public COMET::IChannelMap {
  friend class IGeometryDatabase;
protected:
  ICTHChannelMap();
public:
  virtual ~ICTHChannelMap();

  /// Get the singleton instace of this class
  static ICTHChannelMap& Get();

  /// Get geometry id from channel id
  virtual bool GetGeometryId(COMET::IGeometryId& geomId,
                             COMET::ICTHChannelId channelId);
  ///Get channel id from geometry id
  virtual bool GetChannelId(COMET::ICTHChannelId& chanelId,
                            COMET::IGeometryId geomId);
private:
  ///Return a bad GeometryId that is invalid for any sensible test
  ///Note that the exact value meaningless and should not be relied upon.
  inline const COMET::IGeometryId BadGeomId() const;
  ///Return a bad ChannelId that is invalid for any sensible test
  ///Note that the exact value meaningless and should not be relied upon.
  inline const COMET::ICTHChannelId BadChanId() const;

  static ICTHChannelMap *fCTHChannelMap;
};

#endif