using UnityEngine;

public class Managers : MonoBehaviour
{
    static Managers s_instance;   // static으로 유일성 보장
    static Managers Instance { get { Init(); return s_instance; } }  // 유일한 매니저를 가져온다.
    
    InputManager _input = new InputManager();
    ResourceManager _resource = new ResourceManager();
    SceneManagerEx _scene =  new SceneManagerEx();
    SoundManager _sound = new SoundManager();
    UIManager _ui = new UIManager();
    
    public static InputManager Input { get { return Instance._input; } }
    public static ResourceManager Resource { get { return Instance._resource; } }
    public static SceneManagerEx Scene { get { return Instance._scene; } }
    public static SoundManager Sound { get { return Instance._sound; } }
    public static UIManager UI { get { return Instance._ui; } }
    
    // Start is called once before the first execution of Update after the MonoBehaviour is created
    void Start()
    {
        Init();
    }

    // Update is called once per frame
    void Update()
    {
        _input.OnUpdate();
    }

    static void Init()
    {
        if (s_instance == null)
        {
            GameObject go = GameObject.Find("@Managers");

            if (go == null)
            {
                go = new GameObject("@Managers");
                go.AddComponent<Managers>();
            }
            
            DontDestroyOnLoad(go);
            s_instance = go.GetComponent<Managers>();
            
            s_instance._sound.Init();
        }
    }

    public static void Clear()
    {
        Sound.Clear();
        Input.Clear();
        Scene.Clear();
        UI.Clear();
    }
}