// -*- mode: c++ -*- 
#ifndef BRAT_BrSequenceManager
#define BRAT_BrSequenceManager
//
// $Id: BrSequenceManager
// Root Classes
//
#ifndef ROOT_TObject
#include "TObject.h"
#endif
#ifndef ROOT_TString
#include "TString.h"
#endif
#ifndef ROOT_TFile
#include "TFile.h"
#endif
#ifndef ROOT_TDirectory
#include "TDirectory.h"
#endif

class BrSequenceManager : public TObject 
{

public:
  typedef enum datatype { raw, root };

  static BrSequenceManager* Instance();

  BrSequenceManager();
  virtual ~BrSequenceManager();
  
  void           SetDataDirectory(const Char_t* directory);
  const Char_t*  GetDataDirectory(void) const {return fDataDir->Data();}
  
  void           SetSequenceNumber(Int_t seqNo) {fSequenceNumber=seqNo;}
  // if you set the sequence number to n and caal the GetNextSequence 
  // method, you will get sequence number n+1!
  void           SetStartSequenceNumber(Int_t start){fStartSequence=start; fSequenceNumber = start-1 ;}
  void           SetStopSequenceNumber(Int_t stop){fStopSequence=stop;}

  const Char_t*  GetNextSequenceFile(void);
  const Char_t*  GetCurrentSequenceFile(void);
  Int_t          GetCurrentSequenceNumber(void) const {return fSequenceNumber;}
  Int_t          GetStartSequenceNumber(void) const {return fStartSequence;}
  Int_t          GetStopSequenceNumber(void) const {return fStopSequence;}

  void           SetRunNumber(Int_t runNo) {fRunNumber = runNo;}
  Int_t          GetRunNumber(void) const {return fRunNumber;}

  void           SetDataType(const Char_t* type); 
  Bool_t         IsDataTypeRaw(void);
  Bool_t         IsDataTypeRoot(void);

  Bool_t         IsSequence(Int_t seqNo); //DOES NOT WORK!!! returns kTRUE

private:
  static BrSequenceManager* fgInstance;  // Singleton class

  Int_t         fDebugLevel;            // Debug Flag
  Int_t         fRunNumber;             // RunNumber  
  Int_t         fSequenceNumber;        // Current SequenceNumber  
  Int_t         fStartSequence;         // The start sequence
  Int_t         fStopSequence;          // The stop sequence
  TString*      fDataDir;               // Data directory
  
  datatype fDataType;                   // raw or root

public:
  ClassDef(BrSequenceManager, 0)  // BRAHMS Sequence Manager
};

#endif