/*
 * @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.
 */

#pragma once

#include <string>
#include "mediachanger/LibrarySlot.hpp"
#include <memory>

namespace cta::tape::daemon {

/**
 * The data stored in a data-line (as opposed to a comment-line) from a
 * TPCONFIG file (/etc/cta/TPCONFIG).
 */
class TpconfigLine {
public:
  /**
   * The unit name of the tape drive.
   */
  std::string unitName;

  /**
   * The logical library of the tape drive.
   */
  std::string logicalLibrary;

  /**
   * The filename of the device file of the tape drive.
   */
  std::string devFilename;

  /**
   * The slot in the tape library that contains the tape drive (string encoded).
   */
  std::string rawLibrarySlot;
  
  /**
   * Accessor method to the library slot strcuture.
   * @return reference to the library slot.
   */
  const cta::mediachanger::LibrarySlot & librarySlot() const;
  
private:
  /**
   * The library slot structure.
   */
  std::unique_ptr <cta::mediachanger::LibrarySlot> m_librarySlot;

public:
  /**
   * Trivial constructor (used in unit tests)
   */
  TpconfigLine() = default;
  
  /**
   * Constructor.
   *
   * @param unitName The unit name of the tape drive.
   * @param dgn The Device Group Name (DGN) of the tape drive.
   * @param devFilename The filename of the device file of the tape drive.
   * @param librarySlot The slot in the tape library that contains the tape
   * drive.
   */
  TpconfigLine(
    const std::string &unitName,
    const std::string &logicalLibrary,
    const std::string &devFilename,
    const std::string &librarySlot);

  /**
   * Copy constructor
   * @param o the other TpConfigLine to be copied.
   */
  TpconfigLine(const TpconfigLine& o);
  
  /**
   * Copy operator
   * @param o the other TpConfigLine to copy.
   * @return a reference to the object
   */
  TpconfigLine& operator=(const TpconfigLine& o);
  static const size_t maxNameLen = 100;
}; // struct TpconfigLine

} // namespace cta::tape::daemon