#ifndef BOOK_COUNT_HH
#define BOOK_COUNT_HH

#include <ostream>

namespace book_store::product {
class book_count {
public:
  using book_count_type = std::size_t;

private:
  book_count_type _count;

public:
  book_count() = default;
  book_count(book_count_type count) : _count(count) {}

  [[nodiscard]] auto value() const noexcept -> book_count_type;

  friend auto operator<<(std::ostream &output_stream,
                         const book_count &price) -> std::ostream & {
    output_stream << price._count;

    return output_stream;
  }

  friend auto operator==(const book_count &lhs, const book_count &rhs) -> bool {
    return lhs._count == rhs._count;
  }

  friend auto operator+(const book_count &lhs,
                        const book_count &rhs) -> book_count {
    return {lhs._count + rhs._count};
  }

  friend auto operator<(const book_count &lhs, const book_count &rhs) -> bool {
    return lhs._count < rhs._count;
  }

  friend auto operator-(const book_count &lhs,
                        const book_count &rhs) -> book_count {
    return {lhs._count - rhs._count};
  }

  friend auto operator%(const book_count &lhs,
                        const book_count &rhs) -> book_count {
    return {lhs._count % rhs._count};
  }

  friend auto operator*(const book_count &lhs,
                        const book_count &rhs) -> book_count {
    return {lhs._count * rhs._count};
  }
};
} // namespace book_store::product

#endif // BOOK_COUNT_HH