/**************************************************************************
 * 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.                  *
 **************************************************************************/

/* $Id$ */

///////////////////////////////////////////////////////////////////////////////
//                                                                           //
// class for T0 calibration                       TM-AC-AM_6-02-2006         //
//                                                                           //
///////////////////////////////////////////////////////////////////////////////

#include "AliT0CalibData.h"
#include "AliT0LookUpValue.h"
#include "AliLog.h"

#include <TCanvas.h>
#include <TObjString.h>
#include <TObjArray.h>
#include <TGraph.h>
#include <TFile.h>
#include <TAxis.h>
#include <TH2F.h>
#include <TMath.h>
#include <TSystem.h>
#include <Riostream.h>

#include <string>

ClassImp(AliT0CalibData)

//________________________________________________________________
  AliT0CalibData::AliT0CalibData():   TNamed()

{
  //
}

//________________________________________________________________
AliT0CalibData::AliT0CalibData(const char* name):TNamed(),fTimeDelayTVD(0),fWalk(),fSlewingLED(),fSlewingRec()
{
  TString namst = "Calib_";
  namst += name;
  SetName(namst.Data());
  SetTitle(namst.Data());

}

//________________________________________________________________
AliT0CalibData::AliT0CalibData(const AliT0CalibData& calibda) :
  TNamed(calibda),fTimeDelayTVD(0),fWalk(),fSlewingLED(),fSlewingRec()
{
// copy constructor
  SetName(calibda.GetName());
  SetTitle(calibda.GetName());


}

//________________________________________________________________
AliT0CalibData &AliT0CalibData::operator =(const AliT0CalibData& calibda)
{
// assignment operator
  SetName(calibda.GetName());
  SetTitle(calibda.GetName());
 
  return *this;
}

//________________________________________________________________
AliT0CalibData::~AliT0CalibData()
{
  //
}
//________________________________________________________________
void AliT0CalibData::Reset()
{
    memset(fTimeDelayCFD,1,24*sizeof(Float_t));
    memset(fTimeDelayLED,1,24*sizeof(Float_t));
}


//________________________________________________________________
void  AliT0CalibData::Print(Option_t*) const
{

  printf("\n	----	PM Arrays	----\n\n");
  printf(" Time delay CFD & LED\n");
  for (Int_t i=0; i<24; i++) printf(" CFD  %f LED %f ",fTimeDelayCFD[i], fTimeDelayLED[i]);
} 

//________________________________________________________________
void  AliT0CalibData::PrintLookup(Option_t*, Int_t iTRM, Int_t iTDC, Int_t iChannel) const
{
  
  AliT0LookUpKey* lookkey= new AliT0LookUpKey();
  AliT0LookUpValue*  lookvalue= new AliT0LookUpValue();

  cout<<" Number Of TRMs in setup "<<GetNumberOfTRMs()<<endl;
  lookvalue->SetTRM(iTRM);
  lookvalue->SetTDC(iTDC);
  lookvalue->SetChain(0);
  lookvalue->SetChannel(iChannel);

  
  printf(" AliT0CalibData::PrintLookup ::start GetValue %i %i %i \n",iTRM, iTDC, iChannel);
  lookkey = (AliT0LookUpKey*) fLookup.GetValue((TObject*)lookvalue);
  
  cout<<"  AliT0CalibData::PrintLookup :: lookkey "<< lookkey<<endl;
  if (lookkey)
    {
      cout<<" lookup KEY!!! "<<lookkey->GetKey()<<" VALUE "<<lookvalue->GetTRM()<<" "
	  <<lookvalue->GetTDC()<<" "
	  << lookvalue->GetChain()<<" "
	  <<lookvalue->GetChannel()<<endl;
    }
  
  
}

//________________________________________________________________
void AliT0CalibData::SetTimeDelayCFD(Float_t* TimeDelay)
{
  if(TimeDelay) for(int t=0; t<24; t++) fTimeDelayCFD[t] = TimeDelay[t];
}  
  //________________________________________________________________
  void AliT0CalibData::SetTimeDelayLED(Float_t* TimeDelay)
{
  if(TimeDelay) for(int t=0; t<24; t++) fTimeDelayLED[t] = TimeDelay[t];
}


//________________________________________________________________
void AliT0CalibData::SetWalk(Int_t ipmt)
{

  Int_t mv, ps; 
  Int_t x[70000], y[70000], index[70000];
  Float_t time[10000],amplitude[10000];
  string buffer;
  Bool_t down=false;
  
  const char * filename = gSystem->ExpandPathName("$ALICE_ROOT/T0/data/CFD-Amp.txt");
  ifstream inFile(filename);
  if(!inFile) AliError(Form("Cannot open file %s !",filename));
  
  Int_t i=0;
  while(getline(inFile,buffer)){
    inFile >> ps >> mv;

    x[i]=ps; y[i]=mv;
    i++;
  }
  inFile.close();
  cout<<" number of data "<<i<<endl;
 
  TMath::Sort(i, y, index,down);
  Int_t amp=0, iin=0, isum=0, sum=0;
  Int_t ind=0;
  for (Int_t ii=0; ii<i; ii++)
    {
      ind=index[ii];
      if(y[ind] == amp)
	{
	  sum +=x[ind];
	  iin++;
	  //	  cout<<ii<<" "<<ind<<" "<<y[ind]<<" "<<x[ind]<<" "<<sum<<endl;
	}
      else
	{
	  if(iin>0)
	    time[isum] = Float_t (sum/(iin));
	  else
	    time[isum] =Float_t (x[ind]);
	  amplitude[isum] = Float_t (amp);
	  amp=y[ind];
	  //	  cout<<ii<<" "<<ind<<" "<<y[ind]<<" "<<x[ind]<<" iin "<<iin<<" mean "<<time[isum]<<" amp "<< amplitude[isum]<<" "<<isum<<endl;
	  iin=0;
	  isum++;
	  sum=0;
	}
    }

  inFile.close();

  TGraph* gr = new TGraph(isum, amplitude, time);
  fWalk.AddAtAndExpand(gr,ipmt);
}


//________________________________________________________________

void AliT0CalibData::SetSlewingLED(Int_t ipmt)
{
  Float_t mv, ps; 
  Float_t x[100], y[100];
  string buffer;
  
  const char * filename = gSystem->ExpandPathName("$ALICE_ROOT/T0/data/CFD-LED.txt");
  ifstream inFile(filename);
  if(!inFile) {AliError(Form("Cannot open file %s !",filename));}
  
  inFile >> mv>>ps;
  Int_t i=0;
  
  while(getline(inFile,buffer)){
    x[i]=mv; y[i]=ps;	
    inFile >> mv >> ps;
    i++;
  }
  inFile.close();
  TGraph* gr = new TGraph(i,x,y);
  fSlewingLED.AddAtAndExpand(gr,ipmt);
   
}

//________________________________________________________________

void AliT0CalibData::SetSlewingRec(Int_t ipmt)
{
  Float_t mv, ps; 
  Float_t x[100], y[100];
  string buffer;
  
 const char * filename = gSystem->ExpandPathName("$ALICE_ROOT/T0/data/CFD-LED.root");
   ifstream inFile(filename);
  if(!inFile) {AliError(Form("Cannot open file %s !",filename));}
  
  inFile >> mv>>ps;
  Int_t i=0;
  
  while(getline(inFile,buffer)){
    x[i]=mv; y[i]=ps;	
    inFile >> mv >> ps;
    i++;
  }
  inFile.close();
  Float_t y1[100], x1[100];
  for (Int_t ir=0; ir<i; ir++){
    y1[ir]=y[i-ir]; x1[ir]=x[i-ir];}
  TGraph* gr = new TGraph(i,y1,x1);
  fSlewingRec.AddAtAndExpand(gr,ipmt);
  
}

//________________________________________________________________

void AliT0CalibData::ReadAsciiLookup(const Char_t *filename)
{
  Int_t key, trm, tdc, chain, channel;

  if(filename == 0){
    AliError(Form("Please, specify file with database")) ;
    return ;
  }


  ifstream lookup;
  lookup.open(filename);
  if(!lookup)
    {
      //  AliLog(Form("Cannot open file %s ! Getting hardcoded value",filename));

      //      fNumberOfTRMs = 2;
      SetNumberOfTRMs(2);
      trm=0; tdc=0; chain=0; channel=0; key=0;
      for (Int_t ik=0; ik<108; ik++)
	{
	  AliT0LookUpKey * lookkey= new AliT0LookUpKey();
	  AliT0LookUpValue * lookvalue= new AliT0LookUpValue();
	  
	  lookvalue->SetTRM(trm);
	  lookvalue->SetTDC(tdc);
	  lookvalue->SetChain(chain);
	  lookvalue->SetChannel(channel);
	  lookkey->SetKey(ik);
	  if(ik>53) { trm=1; tdc=0; channel=0;}
	  if (channel<7) channel +=2;
	  else {channel = 0; tdc++;}
	}
    }
  Char_t varname[11];
  Int_t ntrms;
  if(lookup)
    {
      lookup>>ntrms;
      cout<<" !!!!!!! ntrms "<<ntrms<<endl;
      //      fNumberOfTRMs=ntrms;
      SetNumberOfTRMs(ntrms);
       while(!lookup.eof())
	{
	  AliT0LookUpKey * lookkey= new AliT0LookUpKey();
	  AliT0LookUpValue * lookvalue= new AliT0LookUpValue();
	  
	  lookup>>varname>>key>>trm>>chain>>tdc>>channel;
	  lookvalue->SetTRM(trm);
	  lookvalue->SetTDC(tdc);
	  lookvalue->SetChain(chain);
	  lookvalue->SetChannel(channel);
	  lookkey->SetKey(key);
	  cout<<"lookup "<<varname<<" "<<key<<" "<<trm<<" "<<chain<<" "<<tdc<<" "<<channel<<endl;	  
	  
	  fLookup.Add((TObject*)lookvalue,(TObject*)lookkey);
	  
	}
      
      lookup.close();
      
    }
}
//________________________________________________________________

Int_t AliT0CalibData::GetChannel(Int_t trm,  Int_t tdc, Int_t chain, Int_t channel)
{

  AliT0LookUpKey * lookkey;//= new AliT0LookUpKey();
  AliT0LookUpValue * lookvalue= new AliT0LookUpValue(trm,tdc,chain,channel);

  lookkey = (AliT0LookUpKey*) fLookup.GetValue((TObject*)lookvalue);

  return lookkey->GetKey();

}