// Copyright 2019-2020 CERN and copyright holders of ALICE O2.

// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.

// All rights not expressly granted are reserved.

//

// This software is distributed under the terms of the GNU General Public

// License v3 (GPL Version 3), copied verbatim in the file "COPYING".

//

// In applying this license CERN does not waive the privileges and immunities

// granted to it by virtue of its status as an Intergovernmental Organization

// or submit itself to any jurisdiction.

#include "FairLogger.h"

#include "DataFormatsCPV/Digit.h"

#include "DataFormatsCPV/Hit.h"

#include <iostream>

using namespace o2::cpv;

ClassImp(Digit);

Digit::Digit(unsigned short absId, float amplitude, int label)

: DigitBase(0), mAmplitude(amplitude), mAbsId(absId), mLabel(label)

{

}

bool Digit::canAdd(const Digit other) const

{

return (mAbsId == other.getAbsId() && fabs(getTimeStamp() - other.getTimeStamp()) <= kTimeGate);

}

Digit& Digit::operator+=(const Digit& other)

{

// Adds the amplitude of digits

if (mLabel == -1) {

mLabel = other.mLabel;

} else {

if (mLabel != other.mLabel && other.mLabel != -1) {

//if Label indexes are different, something wrong

LOG(ERROR) << "Adding digits with different references to Labels:" << mLabel << " and " << other.mLabel;

}

}

mAmplitude += other.mAmplitude;

return *this;

}

void Digit::PrintStream(std::ostream& stream) const

{

stream << "CPV Digit: cell absId " << mAbsId << ", Time " << getTimeStamp() << " with amplitude " << mAmplitude;

}

std::ostream& operator<<(std::ostream& stream, const Digit& digi)

{

digi.PrintStream(stream);

return stream;

}