using Godot;

public partial class MusicManager : Node {
    private AudioStreamPlayer _player;
    private Node _lastScene;
    private AudioStream _menuMusic;

    public override void _Ready() {
        _player = new AudioStreamPlayer();
        AddChild(_player);

        _menuMusic = GD.Load<AudioStream>("res://Audio/Music/Menu.mp3");

        _player.Stream = _menuMusic;
        _player.Play();

        _lastScene = GetTree().CurrentScene;
    }

    public override void _Process(double delta) {
        Node currentScene = GetTree().CurrentScene;

        if (currentScene != _lastScene) {
            OnSceneChanged(currentScene);
            _lastScene = currentScene;
        }
    }

    private void OnSceneChanged(Node newScene) {
        if (_player == null) return;
        if (newScene == null) return;

        if (newScene.Name == "Game") {
            if (_player.Playing)
                _player.Stop();
        } else {
            if (_player.Stream != _menuMusic || !_player.Playing) {
                _player.Stream = _menuMusic;
                _player.Play();
            }
        }
    }
}