#ifndef ALIEMCALCALIBREFERENCE_H
#define ALIEMCALCALIBREFERENCE_H

/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 * See cxx source for full Copyright notice                               */

/* $Id: $ */

#include <TObject.h>
#include <TObjArray.h>
#include "AliEMCALGeoParams.h"
class TString;
class TTree;

/*
  Objects of this class contain basis for reference calibrations
*/

// total calibration factor is a product of
// a) overall calibration factor [fAbsoluteGain]
// b) individual gain factor per tower [fRelativeGain]
// c) time-dependent correction
// In this class we store the needed static ingredients for c)

// ******* internal class definition *************
// values per single tower
class AliEMCALCalibReferenceVal : public TObject {

 public:
  AliEMCALCalibReferenceVal() : TObject(), // just init values
    fHighLow(0),
    fLEDAmp(0),
    fLEDAmpRMS(0)
    {
    }
  
  void Init() {
    fHighLow = 0;
    fLEDAmp = 0;
    fLEDAmpRMS = 0;
    return;
  }

 public:
  void SetHighLow(Int_t i) { fHighLow = i; }; //
  Int_t GetHighLow() const { return fHighLow; }; //
  void SetLEDAmp(Float_t f) { fLEDAmp = f; }; //
  Float_t GetLEDAmp() const { return fLEDAmp; }; //
  void SetLEDAmpRMS(Float_t f) { fLEDAmpRMS = f; }; //
  Float_t GetLEDAmpRMS() const { return fLEDAmpRMS; }; //

 private:
  Int_t fHighLow; // 0 (low) or 1 (high) gain, used for LEDAmp info
  Float_t fLEDAmp; // LED amplitude
  Float_t fLEDAmpRMS; // RMS

  ClassDef(AliEMCALCalibReferenceVal, 1) // help class
};

// 1 SuperModule's worth of info: info on where the different APDs are
class AliEMCALSuperModuleCalibReference : public TObject {

 public:
  AliEMCALSuperModuleCalibReference(const int smNum=0) : TObject(), // just init values
    fSuperModuleNum(smNum),
    fReferenceTime(0)
    {
      for (int iref=0; iref<AliEMCALGeoParams::fgkEMCALLEDRefs; iref++) {
	fLEDRefAmp[iref] = 0;
	fLEDRefAmpRMS[iref] = 0;
	fLEDRefHighLow[iref] = 0;
      }

      for (int itemp=0; itemp<AliEMCALGeoParams::fgkEMCALTempSensors; itemp++) {
	fTemperature[itemp] = 0;
	fTemperatureRMS[itemp] = 0;
      }

      for (int icol=0; icol<AliEMCALGeoParams::fgkEMCALCols; icol++) {
	for (int irow=0; irow<AliEMCALGeoParams::fgkEMCALRows; irow++) {
	  fAPDVal[icol][irow].Init();
	}
      }
    }

 public:
  // first
  void SetSuperModuleNum(Int_t i) { fSuperModuleNum = i;}; // 
  Int_t GetSuperModuleNum() const { return fSuperModuleNum;}; // 
  void SetReferenceTime(Int_t i) { fReferenceTime = i;}; // 
  Int_t GetReferenceTime() const { return fReferenceTime;}; // 

  // second
  void SetLEDRefAmp(int iLEDRef, Float_t f) { fLEDRefAmp[iLEDRef] = f;}; // 
  Float_t GetLEDRefAmp(int iLEDRef) const { return fLEDRefAmp[iLEDRef];}; // 
  void SetLEDRefAmpRMS(int iLEDRef, Float_t f) { fLEDRefAmpRMS[iLEDRef] = f;}; // 
  Float_t GetLEDRefAmpRMS(int iLEDRef) const { return fLEDRefAmpRMS[iLEDRef];}; // 
  void SetLEDRefHighLow(int iLEDRef, Int_t i) { fLEDRefHighLow[iLEDRef] = i;}; // 
  Int_t GetLEDRefHighLow(int iLEDRef) const { return fLEDRefHighLow[iLEDRef];}; // 

  void SetTemperature(int itemp, Float_t f) { fTemperature[itemp] = f;}; // 
  Float_t GetTemperature(int itemp) const { return fTemperature[itemp];}; // 
  void SetTemperatureRMS(int itemp, Float_t f) { fTemperatureRMS[itemp] = f;}; // 
  Float_t GetTemperatureRMS(int itemp) const { return fTemperatureRMS[itemp];}; // 

  // third
  AliEMCALCalibReferenceVal * GetAPDVal(int icol, int irow) 
    { return &fAPDVal[icol][irow]; };

 private:
  // first: overall values for the whole SuperModule
  Int_t fSuperModuleNum; // which SuperModule is this?
  Int_t fReferenceTime; // t0, unix timestamp
  
  // second: additional info for LED Reference and SM temperature
  Float_t fLEDRefAmp[AliEMCALGeoParams::fgkEMCALLEDRefs]; // LED amplitude at  t0, low gain equivalent
  Float_t fLEDRefAmpRMS[AliEMCALGeoParams::fgkEMCALLEDRefs]; // RMS
  Int_t fLEDRefHighLow[AliEMCALGeoParams::fgkEMCALLEDRefs]; // 0 (low) or 1 (high) gain
  
  Float_t fTemperature[AliEMCALGeoParams::fgkEMCALTempSensors]; // temperature at t0
  Float_t fTemperatureRMS[AliEMCALGeoParams::fgkEMCALTempSensors]; // RMS
  
  // third: individual info for each tower
  AliEMCALCalibReferenceVal fAPDVal[AliEMCALGeoParams::fgkEMCALCols][AliEMCALGeoParams::fgkEMCALRows]; // at t0

  ClassDef(AliEMCALSuperModuleCalibReference, 1) // help class
};
// ******* end of internal class definition *************

class AliEMCALCalibReference : public TObject {

public:

  enum kProblemType {kNoLED=-999};// code in possible problems

  AliEMCALCalibReference(const int nSM = AliEMCALGeoParams::fgkEMCALModules);

  // Read and Write txt I/O methods are normally not used, but are useful for 
  // filling the object before it is saved in OCDB 
  void ReadTextCalibReferenceInfo(Int_t nSM, const TString &txtFileName, Bool_t swapSides=kFALSE); // info file is for nSm=1 to fgkEMCALModules
  void WriteTextCalibReferenceInfo(const TString &txtFileName, Bool_t swapSides=kFALSE); // info file is for nSm=1 to fgkEMCALModules
  void ReadRootCalibReferenceInfo(const TString &rootFileName, Bool_t swapSides=kFALSE); // info file is for nSm=1 to fgkEMCALModules
  void ReadTreeCalibReferenceInfo(TTree *tree, Bool_t swapSides=kFALSE); // info file is for nSm=1 to fgkEMCALModules
  void WriteRootCalibReferenceInfo(const TString &rootFileName, Bool_t swapSides=kFALSE); // info file is for nSm=1 to fgkEMCALModules

  virtual ~AliEMCALCalibReference();

  // pointer to stored info.
  Int_t GetNSuperModule() const { return fNSuperModule; }; 

  // - via the index in the stored array:
  virtual AliEMCALSuperModuleCalibReference * GetSuperModuleCalibReferenceId(Int_t smIndex) const
   { return (AliEMCALSuperModuleCalibReference*) fSuperModuleData[smIndex]; };

  // - or via the actual SM number
  virtual AliEMCALSuperModuleCalibReference * GetSuperModuleCalibReferenceNum(Int_t smNum) const;

protected:

  Int_t 	  fNSuperModule; // Number of supermodules.
  TObjArray fSuperModuleData; // SuperModule data

private:

  AliEMCALCalibReference(const AliEMCALCalibReference &);
  AliEMCALCalibReference &operator = (const AliEMCALCalibReference &);

  ClassDef(AliEMCALCalibReference, 1) //CalibReference data info
};

#endif