#ifndef TStrawTrkChannelId_hxx_seen
#define TStrawTrkChannelId_hxx_seen

#include "IChannelId.hxx"

namespace COMET { class IStrawTrkChannelId; }

class COMET::IStrawTrkChannelId : public COMET::IChannelId {
public:

  explicit IStrawTrkChannelId(UInt_t id =0);
  explicit IStrawTrkChannelId(const COMET::IChannelId& src);
  explicit IStrawTrkChannelId(UInt_t subDet, UInt_t Channel);
  explicit IStrawTrkChannelId(UInt_t stationId, UInt_t manifoldId, UInt_t strawId);
  virtual ~IStrawTrkChannelId();

  virtual std::string AsString() const;
  virtual const UInt_t GetChannel() const;

  bool SetChannelIdFromModuleId(const UInt_t stationId, const UInt_t manifoldId, const UInt_t strawId);
  bool GetStationId(UInt_t& stationId) const;
  bool GetManifoldId(UInt_t& manifoldId) const;
  bool GetStrawId(UInt_t& strawId) const;
  bool GetModuleId(UInt_t& stationId, UInt_t& manifoldId, UInt_t& strawId) const;

protected:

  enum BitDefinitions { kChanMSB=24, kChanLSB=0 };

private:

  virtual void SetChannel(int val);

  /// @{ Define the sub-detector specific part of the channel id.  The
  /// sub-detector specific part of the channel id is a 25 bit field with
  /// bits number from 0 (lsb) to 24 (msb).  The sub-fields are defined
  ///
  /// sss d tttt tttt xxxx xxxx xxxx x 
  ///
  ///    s(3)  [24:22] -- Station
  ///    d(1)  [21:21] -- Manifold X:0 Y:1
  ///    t(8)  [20:13] -- StrawTube
  ///    x(13) [12: 0] -- Spare
  ///
  /// Note: The shift and the least significant bit (lsb) must be the same.
  enum kBitDefinitions {
    kStationMSB      = 24, kStationLSB      = 22,
    kManifoldMSB     = 21, kManifoldLSB    = 21,
    kStrawTubeMSB    = 20, kStrawTubeLSB    = 13,
    kSpareMSB        = 12, kSpareLSB        = 0
  };

  /// Manifold of position detected by a straw layer (See GetStrawManifold()) 
  enum kStrawManifoldDefinitions{
    kStrawTrkManifoldX = 0,
    kStrawTrkManifoldY = 1
  };
  
  ClassDef(IStrawTrkChannelId, 1)
};
#endif