using System;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.InputSystem;
using UnityEngine.UI;
using Object = UnityEngine.Object; // InputSystem 사용을 위해 추가

public abstract class BaseScene : MonoBehaviour
{
    public Define.Scene _sceneType { get; protected set; } = Define.Scene.Uknown;
    protected Canvas _canvas;

    private void Awake()
    {
        Init();
    }

    protected virtual void Init()
    {
        Object obj = FindFirstObjectByType<EventSystem>();
        if (obj == null)
            Manager.Resource.Instantiate("Prefabs/UI/EventSystem").name = "@EventSystem";

        GameObject canvas = GameObject.Find("@Canvas");
        if (canvas == null)
        {
            GameObject newCanvas = new GameObject("@Canvas");
            _canvas = newCanvas.AddComponent<Canvas>();
            _canvas.renderMode = RenderMode.ScreenSpaceOverlay;
            
            newCanvas.AddComponent<CanvasScaler>();
            //Canvas Scaler 의 ui Scale Mode을 Scale With Screen Size로 설정
            CanvasScaler canvasScaler = newCanvas.GetComponent<CanvasScaler>();
            canvasScaler.uiScaleMode = CanvasScaler.ScaleMode.ScaleWithScreenSize;
            canvasScaler.referenceResolution = new Vector2(1920, 1080);
            canvasScaler.screenMatchMode = CanvasScaler.ScreenMatchMode.MatchWidthOrHeight;
            canvasScaler.matchWidthOrHeight = 0.5f; //0: Width,
            
            newCanvas.AddComponent<GraphicRaycaster>();
        }
        else
        {
            _canvas = canvas.GetComponent<Canvas>();
        }
            

        Manager.Input.InputAction -= Check;
        Manager.Input.InputAction += Check;
    }

    private void Check(Define.InputEvent evt)
    {
        switch (evt)
        {
            case Define.InputEvent.Click:
                Debug.Log($"Clicked Position:"); //{Manager.Input.LastPointPosition}");
                break;
            default:
                Manager.Input.PointAction -= DebugLog;
                break;
        }
    }

    public void DebugLog(Vector2 vec)
    {
        Debug.Log(vec);
    }

    public abstract void Clear();
   
}