#ifndef ALITOFRAWSTREAM_H
#define ALITOFRAWSTREAM_H
/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 * See cxx source for full Copyright notice                               */

/* $Id$ */

///////////////////////////////////////////////////////////////
//                                                           //
//   This class provides the key-reading for TOF raw data.   //
//                                                           //
///////////////////////////////////////////////////////////////

#include "TObject.h"

class AliRawReader;

class AliTOFRawStream: public TObject {
 public:

  AliTOFRawStream(); // default ctr
  AliTOFRawStream(AliRawReader* rawReader); // ctr
  virtual ~AliTOFRawStream(); // default dtr

  virtual Bool_t   Next();
  
  Int_t GetDDL()        const {return fDDL;};
  Int_t GetTRM()        const {return fTRM;};
  Int_t GetTDC()        const {return fTDC;};
  Int_t GetTRMchain()   const {return fTRMchain;};
  Int_t GetTDCchannel() const {return fTDCchannel;};
  
  Int_t GetSector() const {return fSector;};
  Int_t GetPlate()  const {return fPlate;};
  Int_t GetStrip()  const {return fStrip;};
  Int_t GetPadZ()   const {return fPadZ;};
  Int_t GetPadX()   const {return fPadX;};
  
  Int_t GetTofBin() const {return fTof;};
  Int_t GetToTbin() const {return fToT;};
    
  void SetDDL(Int_t nDDL)            {fDDL = nDDL;};
  void SetTRM(Int_t nTRM)            {fTRM = nTRM;};
  void SetTDC(Int_t nTDC)            {fTDC = nTDC;};
  void SetTRMchain(Int_t nChain)     {fTRMchain = nChain;};
  void SetTDCchannel(Int_t nChannel) {fTDCchannel = nChannel;};

  void SetSector();
  void SetPlate();
  void SetStrip();
  void SetPadZ();
  void SetPadX();
  
  void  EquipmentId2VolumeId(Int_t nDDL, Int_t nTRM, Int_t iChain,
			     Int_t iTDC, Int_t iCH, Int_t *volume) const;
  Int_t Equip2VolNplate(Int_t iDDL, Int_t nTRM, Int_t nTDC) const ;
  Int_t Equip2VolNstrip(Int_t iDDL, Int_t nTRM, Int_t nTDC) const ;
  Int_t Equip2VolNpad(Int_t iDDL, Int_t iChain, Int_t nTDC, Int_t iCH) const ;
  Int_t GetDDLnumberPerSector(Int_t nDDL) const;
  Int_t GetSectorNumber(Int_t nDDL) const;

 private:

  Int_t GetField(UInt_t word, Int_t fieldMask, Int_t fieldPosition) const;

  AliTOFRawStream(const AliTOFRawStream& stream); // copy ctr
  AliTOFRawStream& operator = (const AliTOFRawStream& stream); // ass. op.

  AliRawReader*  fRawReader; // object for reading the raw data

  Int_t         fDDL;        // DDL file number [0;71]
  Int_t         fTRM;        // TRM number [1;12]
  Int_t         fTDC;        // TDC number [0;14]
  Int_t         fTRMchain;   // TRM chain number [0;1]
  Int_t         fTDCchannel; // TDC channel number [0;7]
  Int_t         fTof;        // time-of-flight measurement [0;8191]
  Int_t         fToT;        // time-over-threshould measurement [0;255]
  Int_t         fErrorFlag;  // error flag
  
  Int_t         fSector;     // sector number [0;17]
  Int_t         fPlate;      // plate number [0;4]
  Int_t         fStrip;      // strip number [0;14/18]
  Int_t         fPadX;       // pad number along the strip [0;47]
  Int_t         fPadZ;       // pad-row number [0;1]

  AliTOFGeometry *fTOFGeometry; // pointer to the TOF geometry

  Int_t fWordType;           // word type
  Int_t fSlotID;             // crate slot ID number
  Int_t fACQ;                // flag to identify the aquisition kind
  Int_t fPSbit;              // flag for packing 
  Int_t fTime;               // time-of-light measurement
  Int_t fTDCerrorFlag;       // TDC error flag
  Bool_t fInsideDRM;         // inside/outside DRM
  Bool_t fInsideTRM;         // inside/outside TRM
  Bool_t fInsideLTM;         // inside/outside LTM
  Bool_t fInsideTRMchain0;   // inside/outside chain 0
  Bool_t fInsideTRMchain1;   // inside/outside chain 1
  Bool_t fLeadingOrphane;    // flag for leading orphane digit

  struct AliTOFtdcDigit {
    // TOF TDC digit data struct
    Int_t fSlotID;  // TRM slot ID
    Int_t fChain;   // Chain ID
    Int_t fPS;      // Packing bit
    Int_t fTDC;     // TDC number 
    Int_t fChannel; // TDC channel number
    Int_t fTOT;     // Time-Over-Threashould
    Int_t fTime;    // Time
  };


  ClassDef(AliTOFRawStream, 1)  // class for reading TOF raw digits
};

#endif