/*
  Copyright (c) 2014 IRIS AS

  This file is part of the Open Porous Media project (OPM).

  OPM is free software: you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.

  OPM is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with OPM.  If not, see <http://www.gnu.org/licenses/>.
*/

#include <config.h>
#include <opm/simulators/timestepping/SimulatorTimerInterface.hpp>
#include <opm/parser/eclipse/Units/Units.hpp>
#include <boost/date_time/posix_time/conversion.hpp>

namespace Opm
{

boost::posix_time::ptime SimulatorTimerInterface::currentDateTime() const
{
    // Boost uses only 32 bit long for seconds, but 64 bit for milliseconds.
    // As a workaround for very large times we just use milliseconds.
    // The cast is necessary because boost::posix_time::milliseconds requires
    // an integer argument.
    return startDateTime() + boost::posix_time::milliseconds(static_cast<long long>(simulationTimeElapsed() / Opm::prefix::milli));
}

time_t SimulatorTimerInterface::currentPosixTime() const
{
    tm t = boost::posix_time::to_tm(currentDateTime());
    return std::mktime(&t);
}

} // namespace Opm
