/*
 * @project      The CERN Tape Archive (CTA)
 * @copyright    Copyright © 2021-2022 CERN
 * @license      This program is free software, distributed under the terms of the GNU General Public
 *               Licence version 3 (GPL Version 3), copied verbatim in the file "COPYING". You can
 *               redistribute it and/or modify it under the terms of the GPL Version 3, 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.
 *
 *               In applying this licence, 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 "common/dataStructures/QueueAndMountSummary.hpp"
#include "common/exception/Exception.hpp"

namespace cta::common::dataStructures {

QueueAndMountSummary* QueueAndMountSummary::getOrCreateEntry(std::list<QueueAndMountSummary>& summaryList,
    MountType mountType, const std::string& tapePool, const std::string& vid,
    const std::map<std::string, std::string>& vid_to_logical_library) {
  for(auto& summary : summaryList) {
    if((summary.tapePool == tapePool && summary.mountType == mountType && getMountBasicType(mountType) == MountType::ArchiveAllTypes) ||
       (summary.vid == vid && mountType == MountType::Retrieve)) {
      return &summary;
    }
  }
  switch(mountType) {
    case MountType::ArchiveForUser:
    case MountType::Retrieve:
    case MountType::ArchiveForRepack:
      summaryList.push_back(QueueAndMountSummary());
      summaryList.back().mountType=mountType;
      summaryList.back().tapePool=tapePool;
      if (MountType::ArchiveForUser==mountType || MountType::ArchiveForRepack == mountType) {
        summaryList.back().vid="-";
        summaryList.back().logicalLibrary="-";
      } else {
        summaryList.back().vid=vid;
        summaryList.back().logicalLibrary=vid_to_logical_library.at(vid);
      }
      return &summaryList.back();

    case MountType::Label:
    case MountType::NoMount:
    case MountType::ArchiveAllTypes:
      throw exception::Exception("In QueueAndMountSummary::getOrCreateEntry(): Unexpected mount type " + toString(mountType));
  }
  // This exception indicates possible memory corruption
  throw exception::Exception("In QueueAndMountSummary::getOrCreateEntry(): Invalid enum value, mountType="
    + std::to_string(static_cast<uint32_t>(mountType)));
}

} // namespace cta::common::dataStructures