using System;
using System.Collections;
using System.IO;
using TriLibCore;
using TriLibCore.SFB;
using UnityEngine;
using UnityEngine.Networking;

namespace ZXL.Helper
{
    public static class ZAssetHelper
    {
        private static string _rootPath;
        static string _assetsFolder;
        static string _sceneFolder;
        static string _cacheFolder;

        static ZAssetHelper()
        {
            _rootPath = $"{Application.dataPath}/{Application.productName}";
            _assetsFolder = _rootPath + "/Assets";
            _sceneFolder = _rootPath + "/Scenes";
            _cacheFolder = _rootPath + "/Cache";

            if (!Directory.Exists(_rootPath))
                Directory.CreateDirectory(_rootPath);
            if (!Directory.Exists(_assetsFolder))
                Directory.CreateDirectory(_assetsFolder);
            if (!Directory.Exists(_sceneFolder))
                Directory.CreateDirectory(_sceneFolder);
            if (!Directory.Exists(_cacheFolder))
                Directory.CreateDirectory(_cacheFolder);
        }

        public static IEnumerator LoadAssets(string assetsName, GameObject parent, Action<GameObject> callback)
        {
            var folderName = assetsName.Split(".")[0];
            string assetsPath = $"{_assetsFolder}/{folderName}/{assetsName}";
            var loadModelFromFile = AssetLoader.LoadModelFromFile(assetsPath, null, null, OnProgress, null, parent);
            bool isTrue = false;
            while (!isTrue)
            {
                Debug.Log(loadModelFromFile.LoadingProgress);
                yield return null;
            }

            callback(loadModelFromFile.WrapperGameObject);

            void OnProgress(AssetLoaderContext arg1, float arg2)
            {
                if (arg2.Equals(1f))
                {
                    isTrue = true;
                }
            }
        }

        public static IEnumerator PushModel(string title, GameObject wrapperGameObject, Action callback = null,
            Action<AssetLoaderContext, float> onProgress = null, Action<bool> onBeginLoad = null,
            Action<IContextualizedError> onError = null)
        {
            string exten = "";
            var paths = StandaloneFileBrowser.OpenFilePanel("Open File", "", exten, false);
            if (paths.Count == 0)
            {
                Debug.Log("Selected file: " + paths[0].Name);
                yield break;
            }
            else
            {
                var strings = paths[0].Name.Split("/");
                var name = strings[strings.Length - 1];
                var split = name.Split(".")[0];
                string savePathWithName = $"{_assetsFolder}/{split}/{name}";

                UnityWebRequest request = UnityWebRequest.Get(paths[0].Name);
                request.SendWebRequest();
                while (true)
                {
                    if (request.isDone)
                    {
                        byte[] results = request.downloadHandler.data;
                        // 通过模型数据写入本地
                        FileInfo file = new FileInfo(savePathWithName);
                        if (file.Directory != null) file.Directory.Create();
                        Stream sw;
                        sw = file.Create();
                        sw.Write(results, 0, results.Length);
                        sw.Close();
                        sw.Dispose();
                        break;
                    }
                    else if (request.isNetworkError)
                    {
                        Debug.Log("Download Error:" + request.error);
                        break;
                    }
                    else
                    {
                    }

                    yield return new WaitForSeconds(Time.deltaTime);
                }

                AssetLoader.LoadModelFromFile(savePathWithName, null, null, OnProgress, null, wrapperGameObject);
            }

            void OnProgress(AssetLoaderContext arg1, float arg2)
            {
                Debug.Log("OnProgress");
                var strings = arg1.Filename.Split("/");
                string fileName = strings[strings.Length - 1];
                if (arg2.Equals(1f))
                {
                    string url = $"{_assetsFolder}/{fileName}";
                    Debug.Log("LoadModel");
                }
            }
        }
    }
}