/* <!-- copyright */
/*
 * aria2 - The high speed download utility
 *
 * Copyright (C) 2006 Tatsuhiro Tsujikawa
 *
 * This program 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 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 *
 * In addition, as a special exception, the copyright holders give
 * permission to link the code of portions of this program with the
 * OpenSSL library under certain conditions as described in each
 * individual source file, and distribute linked combinations
 * including the two.
 * You must obey the GNU General Public License in all respects
 * for all of the code used other than OpenSSL.  If you modify
 * file(s) with this exception, you may extend this exception to your
 * version of the file(s), but you are not obligated to do so.  If you
 * do not wish to do so, delete this exception statement from your
 * version.  If you delete this exception statement from all source
 * files in the program, then also delete it here.
 */
/* copyright --> */
#include "HaveEraseCommand.h"
#include "DownloadEngine.h"
#include "RequestGroupMan.h"
#include "PieceStorage.h"
#include "RequestGroup.h"
#include "wallclock.h"

namespace aria2 {

HaveEraseCommand::HaveEraseCommand(cuid_t cuid, DownloadEngine* e,
                                   std::chrono::seconds interval)
    : TimeBasedCommand(cuid, e, std::move(interval), true)
{
}

HaveEraseCommand::~HaveEraseCommand() = default;

void HaveEraseCommand::preProcess()
{
  if (getDownloadEngine()->getRequestGroupMan()->downloadFinished() ||
      getDownloadEngine()->isHaltRequested()) {
    enableExit();
  }
}

void HaveEraseCommand::process()
{
  // we are making a copy of current wallclock.
  auto expiry = global::wallclock();
  expiry.sub(5_s);

  const auto& groups =
      getDownloadEngine()->getRequestGroupMan()->getRequestGroups();
  for (auto& group : groups) {
    const auto& ps = group->getPieceStorage();
    if (!ps) {
      continue;
    }

    ps->removeAdvertisedPiece(expiry);
  }
}

} // namespace aria2