// -------------------------------------------------------------------------
// -----                   PndDrcRecoLookupMapS header file                   -----
// -----               Created 30/09/11 by Maria Patsyuk               -----
// -----                                                               -----
// -----                                                               -----
// -------------------------------------------------------------------------

 /**  PndDrcRecoLookupMapS.h

 **
 ** Class for Analysising DRC Cherenkov Photons with lookup tables for CHerenkov
    photons directions

 **/
 
#ifndef PNDDRCRECOLOOKUPMAPS_H
#define PNDDRCRECOLOOKUPMAPS_H
 
#include "FairTask.h"
#include "TClonesArray.h"
#include "PndMCTrack.h"
#include "PndDrcHit.h"
#include "PndDrcPDHit.h"
#include "PndStack.h"
#include "FairBaseParSet.h"
#include "PndGeoDrcPar.h"
#include "TString.h"
#include <string>
#include "PndDrcDigiPar.h"
#include "PndDrcDigi.h"
#include "PndGeoHandling.h"

#include "TH1.h"
#include "TH2.h"
#include "TTree.h"
#include "TGraph2D.h"
#include "TColor.h"
#include "TStyle.h"
#include "TLine.h"
#include "TPolyLine.h"

#ifndef ROOT_TParticlePDG
#include "TParticlePDG.h"
#endif
#ifndef ROOT_TDatabasePDG
#include "TDatabasePDG.h"
#endif

class PndDrcRecoLookupMapS : public FairTask {

public:

  /** Default constructor **/
  PndDrcRecoLookupMapS();

  /** Constructor with verbosity **/
  PndDrcRecoLookupMapS(Int_t verbose);

   /** Destructor **/
  virtual ~PndDrcRecoLookupMapS();

  virtual InitStatus Init();

  /** Executed task **/ 
  virtual void Exec(Option_t* option);

  /** Finish task **/ 
  virtual void Finish();
  
  void SetHistoWidth(double wid=0.01){fWidth = wid;} // 0.01     
  void SetNSigma(double nsig = 3.){fNSigma = nsig;}
  void SetMagneticField(double mag = 0.){fB = mag;} // [Tesla]  
  void SetOutputFile(TString outName = "PndDrcRecoLookupMapS_output.root"){fOutputName = outName;}
     
protected:
  
 
private:

 void ProcessPhotonHit();
 void ProcessPhotonMC();
 void WriteToFile();
 void CreateHisto();
 void DrawHisto();
 void ProcessBarHit();
 
  // parameters:
  Double_t fpi;
  Double_t fR;
  Double_t fzup;
  Double_t fzdown;
  Double_t fHThick;
  Double_t fBboxNum;
  Double_t fBarNum;
  Double_t fPipehAngle;
  Double_t fBarBoxGap;
  Double_t fLSide;
  Double_t fBarWidth;
  Double_t fDphi;
  
  //output trees
  TTree* mapstree;
  Float_t fxx, fyy, fchdiff;
  
 // look up table
 virtual void SetParContainers();
 PndDrcDigiPar* fDigiPar;

 Double_t InBarCoordSyst(TVector3, TVector3 *, TVector3 *, TVector3 *, TVector3 *);  
 Int_t    NumberOfBounces(TVector3, TVector3, Int_t);
 Double_t FindOutPoint(Double_t, Double_t, Double_t, Double_t *, Bool_t);
 Double_t CherenkovPhi(TVector3, TVector3, Double_t *, Double_t *);
 Double_t RecoAmbigTime(TVector3, TVector3,Double_t *, Bool_t);
 void DrawBarBox(TVector3, TVector3, TVector3, TVector3);
  Int_t fDetectorID;
  
  TClonesArray* fBarPointArray; // DRC MC points in the bars
  TClonesArray* fPDPointArray; // DRC points in the photon detector
  TClonesArray* fHitArray; // DRC Hits in the bars
  TClonesArray* fPDHitArray; // DRC Hits in the photon detector
  TClonesArray* fMCArray; // DRC Hits in the photon detector
  TClonesArray *fDigiArray;

  //TClonesArray* fChPhoArray; // output array of PndChPho
  TClonesArray *fDrcLutInfoArray;
  
  TList* fHistoList;
  
  PndGeoDrc* fGeo;                 //!< Basic geometry data of barrel DRC.
  PndGeoHandling* fGeoH; //!
  
  /** Set the parameters to the default values. **/
  void SetDefaultParameters();
    
  /** Verbosity level **/
  Int_t fVerbose;
  
  Int_t nevents;  
  
  TString fOutputName;
  Double_t fWidth;  
  Double_t fPixelSize;
  Double_t fHAngleInBDeg;

  Double_t fCHrecoMin;
  Double_t fCHrecoMax;
  Double_t fNSigma;
  Double_t fB;
  
  TVector3 fnX1;  
  TVector3 fnY1;
  
  Double_t flambdah;
  Double_t fpixID;
  Double_t fxbar;
  Double_t fybar;
  Double_t fxPHit;
  Double_t fyPHit;
  Double_t fzPHit;
  Double_t ftime;
  Double_t ftime0;
  Double_t fPhiRot;
  TVector3 fPMo;
  TVector3 fPMoB;  
  TVector3 fPphoInit;
  TVector3 fkBar; 
  Double_t fWeight;
  Int_t	   fBarId; 
  
  Bool_t print;
  
  // look up parameters
  Int_t NHitPix;
  Int_t NPixPar;
  Int_t NAmb;
        
  Double_t fkxBar, fkyBar, fkzBar;
  Double_t fPxMoBar, fPyMoBar, fPzMoBar;
  Double_t fxnew, fynew;
  Double_t CHexp;
  Double_t CHreal;
  TVector3 fPphoB; // kBar
  TVector3 fStartVertex;
  TVector3 fPphoPD;   
  Double_t fPath;
  Double_t fPhiMap;
  Double_t fThetaMap;
  
  // vertices of hit BarBox
  TVector3 fBBver1;
  TVector3 fBBver2;
  TVector3 fBBver3;
  TVector3 fBBver4;
  
ClassDef(PndDrcRecoLookupMapS,1)

};

#endif