using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using UnityEngine;
using UnityEngine.Networking;

namespace Assets.Framework.Tool
{
    public class WebTool:MonoSingleton<WebTool>
    {
        public static void DownImage(string url, Action<Texture2D> callback)
        {
            Instance.StartCoroutine(IEDownImage(url,callback));
        }
        public static IEnumerator IEDownImage(string url, Action<Texture2D> callback)
        {
            for (int i = 0; i < 5; i++)
            {
                using (UnityWebRequest request = UnityWebRequestTexture.GetTexture(url))
                {
                    yield return request.SendWebRequest();

                    if (request.result != UnityWebRequest.Result.Success)
                    {
                        Debug.LogError("图片下载失败: " + request.error);
                        callback?.Invoke(null);
                        continue;
                    }

                    Texture2D tex = DownloadHandlerTexture.GetContent(request);
                    callback?.Invoke(tex);
                    yield break;
                }
            }
           
        }
    }
}