using System.Collections.Generic;
using UnityEngine;
using System.IO;
using System.Threading.Tasks;
using System.Threading;
using UnityEngine.Networking;
using System.Collections;
using UnityEngine.Events;
/// <summary>
/// 与Editor/GenerateAssetsConfig 配合使用 快速获取资源整路径
/// </summary>
namespace XFramework
{
    public class ResourcesManager
    {
        static ResourcesManager()
        {
            //txt>dic
            Load();
        }

        //记录预制件名称以及其对应的预制件路径
        static private Dictionary<string, string> dic = new Dictionary<string, string>();
        static private void Load()
        {
            //加载配置文件，文本类型
            TextAsset textAsset = Resources.
                Load<TextAsset>("ResMap");
            if (textAsset == null)
            {
                Debug.LogError("未生成ResMap,确定不使用RM功能时可忽略");
                return;
            }
            string mapText = textAsset.text;
            //读配置文件 对文本逐行读取
            StringReader reader = new StringReader(mapText);
            string line = null;
            while ((line = reader.ReadLine()) != null)
            {
                string[] keyValue = line.Split('=');
                dic.Add(keyValue[0], keyValue[1]);
            }
        }
        //需要调用的方法 key value
        static private string GetValue(string key)
        {
            if (dic.ContainsKey(key))
            { return dic[key]; }
            Debug.LogError($"ResMap中不存在{key}");
            return null;
        }
        ////路径》得到对象 【预制件】  path=BaseMeleeAttackSkill
        //public static async Task<Object> Load(string path)
        //{
        //    //Skill/BaseMeleeAttackSkill
        //    ResourceRequest request = Resources.LoadAsync<Object>(GetValue(path));
        //    await request;
        //    return request.asset;
        //}

        public static T  Load<T>(string resName) where T :Object
        {
            return Resources.Load<T>(GetValue(resName));
        }

        //获取资源完整路径
        public static string GetPath(string prefabName)
        {
            return GetValue(prefabName);
        }
    }

    public class StreamingAssetsManager
    {
        static string streamingAssetaPath; //移动平台待测试
        static StreamingAssetsManager()
        {
#if UNITY_STANDALONE_WIN || UNITY_EDITOR
            streamingAssetaPath = Application.streamingAssetsPath;
#elif UNITY_ANDROID || UNITY_IPHONE
		streamingAssetaPath = Application.persistentDataPath;
#endif
            //txt>dic
            Load();
        }

        //记录预制件名称以及其对应的预制件路径
        static private Dictionary<string, string> dic = new Dictionary<string, string>();
        //加载本地配置文件
        static private void Load()
        {
            //加载配置文件，文本类型
            
            string mapText = File.ReadAllText(streamingAssetaPath + "/SAMap.txt");
            //读配置文件 对文本逐行读取
            StringReader reader = new StringReader(mapText);
            string line = null;
            while ((line = reader.ReadLine()) != null)
            {
                string[] keyValue = line.Split('=');
                dic.Add(keyValue[0], keyValue[1]);
            }
        }

        /// <summary>
        /// 获取完整路径 
        /// </summary>
        /// <param name="assetsName"></param>
        /// <returns></returns>
        public static string GetPath(string assetsName)
        {
            if (dic.ContainsKey(assetsName))
            {
                return $"{streamingAssetaPath}/{dic[assetsName]}";
            }
            else
            {
                Debug.LogWarning($"SAMap中不存在{assetsName}");
                return null;
            }
        }

        public IEnumerator Load<T>(string url,UnityAction<T> loaded) where T: Object
        {
            UnityWebRequest webRequest =  UnityWebRequest.Get(url);
            yield return webRequest.SendWebRequest();
            if (webRequest.isDone&& webRequest.error == null)
            {
                //loaded.Invoke(webRequest.downloadHandler.)
            }
        }
             
    }

}