using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

namespace Thousandto.Launcher.ExternalLibs
{
    public class SceneRestoreRunTimeUtils
    {

        #region//私有变量
        private static Action<string, Action<Texture>> _textureHandle = null;
        private static Action<string> _releaseTexHanle = null;
        private static List<string> _cacheTexPath = new List<string>();
        private static Func<Shader,Material> _newMatHandle = null;
        private static Action<Material> _freeMatHandle = null;
        #endregion

        #region//私有变量

        #endregion

        public static void SetHandler(Action<string, Action<Texture>> handle, Action<string> releaseHanle, Func<Shader, Material> newMatHander, Action<Material> freeMatHander )
        {
            _textureHandle = handle;
            _releaseTexHanle = releaseHanle;
            _newMatHandle = newMatHander;
            _freeMatHandle = freeMatHander;
        }

        public static void SetTexture(string texName, string pname, Action<Texture> action)
        {
            if (_textureHandle != null)
            {
                _textureHandle(texName, (tex) => {
                    if (tex != null)
                    {
                        if (action != null)
                            action(tex);
                        _cacheTexPath.Add(texName);
                    }
                });
            }
        }

        public static Material NewMaterial(Shader sd)
        {
            if (_newMatHandle != null)
            {
                return _newMatHandle(sd);
            }
            else
            {
#if UNITY_EDITOR && !FUNCELL_LAUNCHER
                return new Material(sd);
#endif
            }
            return null;
        }

        public static void FreeMaterial(Material mat)
        {
            if (_freeMatHandle != null)
            {
                _freeMatHandle(mat);
            }
            else
            {
#if UNITY_EDITOR && !FUNCELL_LAUNCHER
                if (mat != null)
                {
                    GameObject.DestroyImmediate(mat);
                    mat = null;
                }
#endif
            }
        }

        public static void ReleaseTexture()
        {
            for (int i = 0; i < _cacheTexPath.Count; i++)
            {
                var path = _cacheTexPath[i];
                _releaseTexHanle(path);
            }
            _cacheTexPath.Clear();
        }

        public static void ReleaseTexture(string name)
        {
            _releaseTexHanle(name);
        }
    }
}