// Copyright CERN and copyright holders of ALICE O2. This software is

// distributed under the terms of the GNU General Public License v3 (GPL

// Version 3), copied verbatim in the file "COPYING".

//

// See http://alice-o2.web.cern.ch/license for full licensing information.

//

// 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.

//

// Created by Sandro Wenzel on 2019-08-20.

//

#include <CCDB/CCDBTimeStampUtils.h>

#include <chrono>

#include <ctime>

namespace o2::ccdb

{

long getFutureTimestamp(int secondsInFuture)

{

std::chrono::seconds sec(secondsInFuture);

auto future = std::chrono::system_clock::now() + sec;

auto future_ms = std::chrono::time_point_cast<std::chrono::milliseconds>(future);

auto epoch = future_ms.time_since_epoch();

auto value = std::chrono::duration_cast<std::chrono::milliseconds>(epoch);

return value.count();

}

/// returns the timestamp in long corresponding to "now"

long getCurrentTimestamp()

{

auto now = std::chrono::system_clock::now();

auto now_ms = std::chrono::time_point_cast<std::chrono::milliseconds>(now);

auto epoch = now_ms.time_since_epoch();

auto value = std::chrono::duration_cast<std::chrono::milliseconds>(epoch);

return value.count();

}

/// \brief Converting time into numerical time stamp representation

long createTimestamp(int year, int month, int day, int hour, int minutes, int seconds)

{

struct tm timeinfo;

timeinfo.tm_year = year;

timeinfo.tm_mon = month;

timeinfo.tm_mday = day;

timeinfo.tm_hour = hour;

timeinfo.tm_min = minutes;

timeinfo.tm_sec = seconds;

time_t timeformat = mktime(&timeinfo);

return static_cast<long>(timeformat);

}

} // namespace o2::ccdb