repertory/include/drives/directory_iterator.hpp

/*
  Copyright <2018-2023> <scott.e.graves@protonmail.com>

  Permission is hereby granted, free of charge, to any person obtaining a copy
  of this software and associated documentation files (the "Software"), to deal
  in the Software without restriction, including without limitation the rights
  to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  copies of the Software, and to permit persons to whom the Software is
  furnished to do so, subject to the following conditions:

  The above copyright notice and this permission notice shall be included in all
  copies or substantial portions of the Software.

  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  SOFTWARE.
*/
#ifndef INCLUDE_DRIVES_DIRECTORY_ITERATOR_HPP_
#define INCLUDE_DRIVES_DIRECTORY_ITERATOR_HPP_

#include "types/remote.hpp"
#include "types/repertory.hpp"

namespace repertory {
class directory_iterator final {
public:
#ifndef _WIN32
  using populate_stat_callback =
      std::function<void(const std::string &, std::uint64_t,
                         const api_meta_map &, bool, struct stat *)>;
#endif
public:
  explicit directory_iterator(directory_item_list list)
      : items_(std::move(list)) {}

  directory_iterator(const directory_iterator &iterator) noexcept = default;

  directory_iterator(directory_iterator &&iterator) noexcept
      : items_(std::move(iterator.items_)) {}

private:
  directory_item_list items_;

public:
#ifndef _WIN32
  [[nodiscard]] auto fill_buffer(const remote::file_offset &offset,
                                 fuse_fill_dir_t filler_function, void *buffer,
                                 populate_stat_callback populate_stat) -> int;
#endif

  [[nodiscard]] auto get(std::size_t offset, std::string &item) -> int;

  [[nodiscard]] auto get_count() const -> std::size_t { return items_.size(); }

  [[nodiscard]] auto get_directory_item(std::size_t offset, directory_item &di)
      -> api_error;

  [[nodiscard]] auto get_directory_item(const std::string &api_path,
                                        directory_item &di) -> api_error;

  [[nodiscard]] auto get_json(std::size_t offset, json &item) -> int;

  [[nodiscard]] auto
  get_next_directory_offset(const std::string &api_path) const -> std::size_t;

public:
  auto operator=(const directory_iterator &iterator) noexcept
      -> directory_iterator &;

  auto operator=(directory_iterator &&iterator) noexcept
      -> directory_iterator &;

  auto operator=(directory_item_list list) noexcept -> directory_iterator &;
};
} // namespace repertory

#endif // INCLUDE_DRIVES_DIRECTORY_ITERATOR_HPP_