/*
 *====================================================================
 *
 *  CBM Level 1 Reconstruction 
 *  
 *  Authors: I.Kisel,  S.Gorbunov
 *
 *  e-mail : ikisel@kip.uni-heidelberg.de 
 *
 *====================================================================
 *
 *  STS hit description for L1
 *
 *====================================================================
 */

#ifndef _CbmL1StsHit_h_
#define _CbmL1StsHit_h_

#include "CbmKFStsHit.h"

#include <vector>
using namespace std;

#include "CbmL1TrackPar.h"

struct CbmL1StsHit;

struct CbmL1StsStrip
{
  int iStation;
  int iSector, iStrip;
  bool isFront;
  vector<CbmL1StsHit*> vHits;
};

struct CbmL1StsHit 
{ 

  CbmKFStsHit KFStsHit;

  CbmKFHit *GetKFHit(){ return &KFStsHit; }

  void Filter( CbmL1TrackPar &track, bool downstream ){
    double qp0 = track.GetTrack()[4];
    GetKFHit()->Filter( track, downstream, qp0 );
  }

  // hit information  
  
  int iStation; // STS station 
  bool isStrip;
  int ExtIndex; // = (index in STS???Hit aray)
  int iPileUp;

  int iSector, iStripF, iStripB ; 

  int indStripF, indStripB;

  // fit information
  
  //CbmL1KFPixelMeasurement FitPoint;
  //CbmL1KFUMeasurement     FitStripF, FitStripB;
  
  // Monte Carlo information
  
  int MC_Point;

  // tracking information
  
  int first_hit, last_hit;
  int first_triplet, last_triplet;
  int level;
  bool used;
  double X, Y, Z;
  //
  double x() { return X; }
  double y() { return Y; }
  double z() { return Z; }
  

  static bool compareStation( CbmL1StsHit a, CbmL1StsHit b )
  {
    return ( a.iStation < b.iStation ) ||
      ( ( a.iStation == b.iStation ) && ( a.y() < b.y() ) );
  }  

  static bool pcompareStation( CbmL1StsHit *a, CbmL1StsHit *b )
  {
    return ( a->iStation < b->iStation ) ||
      ( ( a->iStation == b->iStation ) && ( a->y() < b->y() ) );
  }  

  static bool comparePDown( CbmL1StsHit *a, CbmL1StsHit *b )
  {
    return ( a->iStation < b->iStation ) ;
  }  

  static bool comparePUp( CbmL1StsHit *a, CbmL1StsHit *b )
  {
    return ( a->iStation > b->iStation ) ;
  }  

};

#endif