// -----------------------------------------------------------------------------

class Movie : public Title {
protected:

	std::optional<int> length_;

public:

	Movie(
		const std::string& name,
		int year,
		const std::string& genre,
		int rating,
		const std::set<Actor>& actors,
		std::optional<int> length
	);
	Movie(
		std::string&& name,
		int year,
		std::string&& genre,
		int rating,
		std::set<Actor>&& actors,
		std::optional<int> length
	);

	std::optional<int> length() const;

};

// -----------------------------------------------------------------------------

class Series : public Title {
protected:

	int seasons_;
	int episodes_;

public:

	Series(
		const std::string& name,
		int year,
		const std::string& genre,
		int rating,
		const std::set<Actor>& actors,
		int seasons,
		int episodes
	);
	Series(
		std::string&& name,
		int year,
		std::string&& genre,
		int rating,
		std::set<Actor>&& actors,
		int seasons,
		int episodes
	);

	int seasons() const;
	int episodes() const;

};

// -----------------------------------------------------------------------------

inline std::optional<int> Movie::length() const {
	return length_;
}

inline int Series::seasons() const {
	return seasons_;
}

inline int Series::episodes() const {
	return episodes_;
}

// -----------------------------------------------------------------------------