using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using UnityEngine;

namespace ET.Client
{
    [FriendOf(typeof(ResourcesComponentHelper))]
    public static class ResourcesComponentHelperSystem
    {
        [ObjectSystem]
        public class ResourcesComponentHelperAwakeSystem : AwakeSystem<ResourcesComponentHelper>
        {
            protected override void Awake(ResourcesComponentHelper self, params object[] param)
            {
                ResourcesComponentHelper.Instance = self;
            }
        }
        
        [ObjectSystem]
        public class ResourcesComponentHelperDestroySystem : DestroySystem<ResourcesComponentHelper>
        {
            protected override void Destroy(ResourcesComponentHelper self)
            {
                ResourcesComponentHelper.Instance = null;

                
            }
        }

        public static async ETTask LoadSprite(this ResourcesComponentHelper self,Scene scene,string ab)
        {
            await scene.GetComponent<ResourcesLoaderComponent>().LoadAsync(ab.StringToAB());
        }

        public static Sprite GetSprite(this ResourcesComponentHelper self,string ab, string spriteName)
        {
            UnityEngine.Object spriteObj = ResourcesComponent.Instance.GetAsset(ab.StringToAB(), spriteName);
            if (spriteObj != null)
            {
                if (spriteObj == null)
                    Debug.LogError("@@@9  spriteObj == null ");
                if (spriteObj is Sprite)
                {
                    return spriteObj as Sprite;
                }
                else if (spriteObj is Texture2D)
                {
                    Texture2D texture = spriteObj as Texture2D;
                    var sprite = Sprite.Create(texture, new Rect(0, 0, texture.width, texture.height), new Vector2(0.5f, 0.5f), 100f);
                    return sprite;
                }
            }
            return null;
        }

        public static async ETTask LoadAssetAsync(this ResourcesComponentHelper self, Scene scene, string ab)
        {
            await scene.GetComponent<ResourcesLoaderComponent>().LoadAsync(ab.StringToAB());
        }

        public static UnityEngine.Object GetAssetAsync(this ResourcesComponentHelper self, string ab, string subAB)
        {
            return ResourcesComponent.Instance.GetAsset(ab.StringToAB(), subAB);
        }
    }

    [ComponentOf(typeof(Scene))]
    public class ResourcesComponentHelper : Entity, IAwake, IDestroy
    {
        public static ResourcesComponentHelper Instance { get; set; }

        
    }
}