/**************************************************************************
 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 *                                                                        *
 * Author: The ALICE Off-line Project.                                    *
 * Contributors are mentioned in the code where appropriate.              *
 *                                                                        *
 * Permission to use, copy, modify and distribute this software and its   *
 * documentation strictly for non-commercial purposes is hereby granted   *
 * without fee, provided that the above copyright notice appears in all   *
 * copies and that both the copyright notice and this permission notice   *
 * appear in the supporting documentation. The authors make no claims     *
 * about the suitability of this software for any purpose. It is          *
 * provided "as is" without express or implied warranty.                  *
 **************************************************************************/

///////////////////////////////////////////////////////////////////////
//                                                                   //
//  Produces the data needed to calculate the TOF quality assurance. //
//  QA objects are 1 & 2 Dimensional histograms.                     //
//  author: S.Arcelli                                                //
//                                                                   //
///////////////////////////////////////////////////////////////////////

#include <TClonesArray.h>
//#include <TFile.h> 
//#include <TH1I.h> 
#include <TH1F.h> 
#include <TH2F.h> 

#include "AliLog.h"
#include "AliESDEvent.h"
#include "AliESDtrack.h"
#include "AliQAChecker.h"
#include "AliRawReader.h"

#include "AliTOFcluster.h"
#include "AliTOFQADataMakerRec.h"
#include "AliTOFRawStream.h"
#include "AliTOFrawData.h"
#include "AliTOFGeometry.h"

ClassImp(AliTOFQADataMakerRec)
           
//____________________________________________________________________________ 
  AliTOFQADataMakerRec::AliTOFQADataMakerRec() : 
  AliQADataMakerRec(AliQA::GetDetName(AliQA::kTOF), "TOF Quality Assurance Data Maker")
{
  //
  // ctor
  //
}

//____________________________________________________________________________ 
AliTOFQADataMakerRec::AliTOFQADataMakerRec(const AliTOFQADataMakerRec& qadm) :
  AliQADataMakerRec()
{
  //
  //copy ctor 
  //
  SetName((const char*)qadm.GetName()) ; 
  SetTitle((const char*)qadm.GetTitle()); 
}

//__________________________________________________________________
AliTOFQADataMakerRec& AliTOFQADataMakerRec::operator = (const AliTOFQADataMakerRec& qadm )
{
  //
  // assignment operator.
  //
  this->~AliTOFQADataMakerRec();
  new(this) AliTOFQADataMakerRec(qadm);
  return *this;
}
 
//____________________________________________________________________________ 
void AliTOFQADataMakerRec::InitRaws()
{
  //
  // create Raws histograms in Raws subdir
  //
  TH1F * h0 = new TH1F("hTOFRaws",    "Number of TOF Raws ",301, -1.02, 5.) ;   h0->Sumw2() ;
  Add2RawsList(h0, 0) ;

  TH1F * h1  = new TH1F("hTOFRawsTime", "Raws Time Spectrum in TOF (ns)", 2000, 0., 200) ; 
  h1->Sumw2() ;
  Add2RawsList(h1, 1) ;

  TH1F * h2  = new TH1F("hTOFRawsToT", "Raws ToT Spectrum in TOF (ns)", 500, 0., 50) ; 
  h2->Sumw2() ;
  Add2RawsList(h2, 2) ;

  TH2F * h3  = new TH2F("hTOFRawsClusMap","Raws vs TOF eta-phi",183, -0.5, 182.5,865,-0.5,864.5) ; 
  h3->Sumw2() ;
  Add2RawsList(h3, 3) ;

}

//____________________________________________________________________________ 
void AliTOFQADataMakerRec::InitRecPoints()
{
  //
  // create RecPoints histograms in RecPoints subdir
  //
  TH1F * h0 = new TH1F("hTOFRecPoints",    "Number of TOF RecPoints ",301, -1.02, 5.) ;   h0->Sumw2() ;
  Add2RecPointsList(h0, 0) ;

  TH1F * h1  = new TH1F("hTOFRecPointsTime", "RecPoints Time Spectrum in TOF (ns)", 2000, 0., 200) ; 
  h1->Sumw2() ;
  Add2RecPointsList(h1, 1) ;

  TH1F * h2  = new TH1F("hTOFRecPointsRawTime", "RecPoints raw Time Spectrum in TOF (ns)", 2000, 0., 200) ; 
  h2->Sumw2() ;
  Add2RecPointsList(h2, 2) ;

  TH1F * h3  = new TH1F("hTOFRecPointsToT", "RecPoints ToT Spectrum in TOF (ns)", 500, 0., 50) ; 
  h3->Sumw2() ;
  Add2RecPointsList(h3, 3) ;

  TH2F * h4  = new TH2F("hTOFRecPointsClusMap","RecPoints vs TOF eta-phi",183, -0.5, 182.5,865,-0.5,864.5) ; 
  h4->Sumw2() ;
  Add2RecPointsList(h4, 4) ;

}

//____________________________________________________________________________ 
void AliTOFQADataMakerRec::InitESDs()
{
  //
  //create ESDs histograms in ESDs subdir
  //
  TH1F * h0 = new TH1F("hTOFESDs",    "Number of matched TOF tracks over ESDs",       250, -1., 4.) ;  
  h0->Sumw2() ; 
  Add2ESDsList(h0, 0) ;

  TH1F * h1  = new TH1F("hTOFESDsTime", "Time Spectrum in TOF (ns)", 2000, 0., 200) ; 
  h1->Sumw2() ;
  Add2ESDsList(h1, 1) ;

  TH1F * h2  = new TH1F("hTOFESDsRawTime", "raw Time Spectrum in TOF (ns)", 2000, 0., 200) ; 
  h2->Sumw2() ;
  Add2ESDsList(h2, 2) ;

  TH1F * h3  = new TH1F("hTOFESDsToT", "ToT Spectrum in TOF (ns)", 500, 0., 50) ; 
  h3->Sumw2() ;
  Add2ESDsList(h3, 3) ;

  TH1F * h4 = new TH1F("hTOFESDsPID",    "Fraction of matched TOF tracks with good PID glag", 100, 0., 1.) ;  
  h4->Sumw2() ; 
  Add2ESDsList(h4, 4) ;
}

//____________________________________________________________________________
void AliTOFQADataMakerRec::MakeRaws(AliRawReader* rawReader)
{
  //
  // makes data from Raws
  //

  Double_t tdc2ns=AliTOFGeometry::TdcBinWidth()*1E-3;
  Double_t tot2ns=AliTOFGeometry::ToTBinWidth()*1E-3;


  Int_t ntof = 0 ; 
  Int_t in[5];
  Int_t out[5];

  TClonesArray * clonesRawData;
  AliTOFRawStream tofInput(rawReader);
  for (Int_t iDDL = 0; iDDL < AliTOFGeometry::NDDL()*AliTOFGeometry::NSectors(); iDDL++){
    rawReader->Reset();
    tofInput.LoadRawData(iDDL);
    clonesRawData = (TClonesArray*)tofInput.GetRawData();
    for (Int_t iRawData = 0; iRawData<clonesRawData->GetEntriesFast(); iRawData++) {
      AliTOFrawData *tofRawDatum = (AliTOFrawData*)clonesRawData->UncheckedAt(iRawData);
      if (!tofRawDatum->GetTOT() || !tofRawDatum->GetTOF()) continue;
      ntof++;
      GetRawsData(1)->Fill( tofRawDatum->GetTOF()*tdc2ns) ;//in ns
      GetRawsData(2)->Fill( tofRawDatum->GetTOT()*tot2ns) ;//in ns

      tofInput.EquipmentId2VolumeId(iDDL, 
				    tofRawDatum->GetTRM(), 
				    tofRawDatum->GetTRMchain(),
				    tofRawDatum->GetTDC(), 
				    tofRawDatum->GetTDCchannel(), 
				    in);
    
      GetMapIndeces(in,out);
      GetRawsData(3)->Fill( out[0],out[1]) ;//raw map
      
    } // while loop
    
    clonesRawData->Clear();
    
  } // DDL Loop
  
  Int_t nentries=ntof;
  if(nentries<=0){
    GetRawsData(0)->Fill(-1.) ; 
  }else{
    GetRawsData(0)->Fill(TMath::Log10(nentries)) ; 
  }
}

//____________________________________________________________________________
void AliTOFQADataMakerRec::MakeRecPoints(TTree * clustersTree)
{
  //
  // Make data from Clusters
  //

  Double_t tdc2ns=AliTOFGeometry::TdcBinWidth()*1E-3;
  Double_t tot2ns=AliTOFGeometry::ToTBinWidth()*1E-3;

  Int_t in[5];
  Int_t out[5];

  TBranch *branch=clustersTree->GetBranch("TOF");
  if (!branch) { 
    AliError("can't get the branch with the TOF clusters !");
    return;
  }

  TClonesArray dummy("AliTOFcluster",10000), *clusters=&dummy;
  branch->SetAddress(&clusters);

  // Import the tree
  clustersTree->GetEvent(0);  
  
  Int_t nentries=clusters->GetEntriesFast();
  if(nentries<=0){
    GetRecPointsData(0)->Fill(-1.) ; 
  }else{
    GetRecPointsData(0)->Fill(TMath::Log10(nentries)) ; 
  } 
 
  TIter next(clusters) ; 
  AliTOFcluster * c ; 
  while ( (c = dynamic_cast<AliTOFcluster *>(next())) ) {
    GetRecPointsData(1)->Fill(c->GetTDC()*tdc2ns);
    GetRecPointsData(2)->Fill(c->GetTDCRAW()*tdc2ns);
    GetRecPointsData(3)->Fill(c->GetToT()*tot2ns);
    
    in[0] = c->GetDetInd(0);
    in[1] = c->GetDetInd(1);
    in[2] = c->GetDetInd(2);
    in[3] = c->GetDetInd(4); //X and Z indeces inverted in RecPoints
    in[4] = c->GetDetInd(3); //X and Z indeces inverted in RecPoints
    
    GetMapIndeces(in,out);
    GetRecPointsData(4)->Fill(out[0],out[1]);
    
  }
}

//____________________________________________________________________________
void AliTOFQADataMakerRec::MakeESDs(AliESDEvent * esd)
{
  //
  // make QA data from ESDs
  //  
  Int_t ntrk = esd->GetNumberOfTracks() ; 
  Int_t ntof=0;
  Int_t ntofpid=0;
  while (ntrk--) {
    AliESDtrack *track=esd->GetTrack(ntrk);
    Double_t tofTime=track->GetTOFsignal()*1E-3;//in ns
    Double_t tofTimeRaw=track->GetTOFsignalRaw()*1E-3;//in ns
    Double_t tofToT=track->GetTOFsignalToT(); //in ns
    if(!(tofTime>0))continue;
    ntof++;
    GetESDsData(1)->Fill(tofTime);
    GetESDsData(2)->Fill(tofTimeRaw); 
    GetESDsData(3)->Fill(tofToT);
    //check how many tracks where ESD PID is ok 
    UInt_t status=track->GetStatus();
    if (((status&AliESDtrack::kESDpid)==0) || 
	((status&AliESDtrack::kTOFpid)==0)) continue;
    ntofpid++;
  }
  
  Int_t nentries=ntof;
  if(nentries<=0){
    GetESDsData(0)->Fill(-1.) ;
  }else{
    GetESDsData(0)->Fill(TMath::Log10(nentries)) ;
  }

  if(ntof>0)GetESDsData(4)->Fill(ntofpid/ntof) ;

}

//____________________________________________________________________________ 
void AliTOFQADataMakerRec::StartOfDetectorCycle()
{
  //
  //Detector specific actions at start of cycle
  //to be implemented  
}

//____________________________________________________________________________ 
void AliTOFQADataMakerRec::EndOfDetectorCycle(AliQA::TASKINDEX_t task, TObjArray * list)
{
  //Detector specific actions at end of cycle
  // do the QA checking

  AliQAChecker::Instance()->Run(AliQA::kTOF, task, list) ;  
}
//____________________________________________________________________________
void AliTOFQADataMakerRec::GetMapIndeces(Int_t* in , Int_t* out)
{
  //
  //return appropriate indeces for the theta-phi map
  //

  Int_t npadX = AliTOFGeometry::NpadX();
  Int_t npadZ = AliTOFGeometry::NpadZ();
  Int_t nStripA = AliTOFGeometry::NStripA();
  Int_t nStripB = AliTOFGeometry::NStripB();
  Int_t nStripC = AliTOFGeometry::NStripC();

  Int_t isector = in[0];
  Int_t iplate = in[1];
  Int_t istrip = in[2];
  Int_t ipadX = in[3]; 
  Int_t ipadZ = in[4]; 
  
  Int_t stripOffset = 0;
  switch (iplate) {
  case 0:
    stripOffset = 0;
      break;
  case 1:
    stripOffset = nStripC;
    break;
  case 2:
    stripOffset = nStripC+nStripB;
    break;
  case 3:
    stripOffset = nStripC+nStripB+nStripA;
    break;
  case 4:
    stripOffset = nStripC+nStripB+nStripA+nStripB;
    break;
  default:
    AliError(Form("Wrong plate number in TOF (%d) !",iplate));
    break;
  };
  Int_t zindex=npadZ*(istrip+stripOffset)+(ipadZ+1);
  Int_t phiindex=npadX*isector+ipadX+1;
  out[0]=zindex;  
  out[1]=phiindex;  
  
}