#include <iostream>
#include <memory>


using namespace std;

class Projector {
    int brightness;
public:
    void set_brightness(int brightness) { this->brightness = brightness; }
    int get_brightness() { return brightness; }
};

class Amplifier {
    int volume;
    string mode;
public:
    Amplifier() : mode("Normal") {}
    void set_volume(int volume) { this->volume = volume; }
    int get_volumn() { return volume; }
    void set_mode(const string& mode) { this->mode = mode; }
    const string& get_mode() {return this->mode; }
};

class Player {
    unique_ptr<Projector> pro;
    unique_ptr<Amplifier> amp;
public:
    Player(unique_ptr<Projector> p, unique_ptr<Amplifier> a) :
    pro(move(p)), amp(move(a)) {}

    void play(const string& movie) {
        cout << "Play movie: " << movie
             << " brightness: " << pro->get_brightness()
             << " volume: " << amp->get_volumn()
             << " in " << amp->get_mode() << " mode." << endl;
    }
};

class TheaterFacade {
public:
    void play(const string& movie) {
        auto pro = make_unique<Projector>();
        auto amp = make_unique<Amplifier>();
        pro->set_brightness(10);
        amp->set_volume(10);
        Player p(move(pro), move(amp));
        p.play(movie);
    }
};


int main() {
    // Simply use without configure
    TheaterFacade f;
    f.play("CSAPP");

    // You can still control the details
    auto pro = make_unique<Projector>();
    auto amp = make_unique<Amplifier>();
    pro->set_brightness(20);
    amp->set_volume(42);
    amp->set_mode("Virtual Surround");
    Player p(move(pro), move(amp));
    p.play("CSAPP");
}