#region Copyright RenGuiYou. All rights reserved.

//=====================================================
// NeatlyFrameWork
// Author:      RenGuiyou
// Feedback: 	mailto:750539605@qq.com
//=====================================================

#endregion

using System;
using System.IO;
using UnityEngine;

namespace Neatly.Load
{
    public class AssetBundleLoader : Loader
    {
        AssetBundleCreateRequest m_ABCreateQuest;

        protected override void Init(string path, Action<Loader> callback, bool sync = true)
        {
            var pathAtlasTp = NeatlyConfig.PATH_BUNDLE_ATLAS_TP;
            IsAtlas = path.IndexOf(pathAtlasTp, StringComparison.Ordinal) != -1;
            if (IsAtlas)
            {
                AtlasName = path.Replace(pathAtlasTp, string.Empty).SubstringTo(".");
            }

            base.Init(path, callback, sync);
        }

        public override void Load()
        {
            base.Load();
            string m_Name = GetFilePath(Path);
            if (m_Sync)
            {
                AssetBundle assetBundle = null;
                try
                {
                    Developer.StartLoadBundle(Path);
                    assetBundle = AssetBundle.LoadFromFile(m_Name);
                    Developer.EndLoadBundle(Path);
                    if (IsAtlas)
                    {
                        Developer.StartLoadAtlas(Path);
                        var gameObject = assetBundle.LoadAsset<GameObject>(AtlasName);
                        AtlasInfo = gameObject.GetComponent<NAtlas>();
                        AtlasInfo.Init();
                        Developer.EndLoadAtlas(Path);
                    }
                }
                catch (Exception e)
                {
                    Debug.LogException(e);
                }
                finally
                {
                    OnLoadCompleted(assetBundle);
                }
            }
            else
            {
                m_ABCreateQuest = AssetBundle.LoadFromFileAsync(m_Name);
            }
        }

        public override void Update()
        {
            if (m_ABCreateQuest == null)
            {
                Debug.LogErrorFormat("[异步加载错误] Path:{0}", Path);
                return;
            }

            if (m_ABCreateQuest.isDone)
            {
                OnLoadCompleted(m_ABCreateQuest.assetBundle);
            }
        }

        private string GetFilePath(string name)
        {
#if UNITY_STANDALONE_WIN
            return $"{NeatlyConfig.PATH_PACKAGE_BUNDLE}/{name}";
#endif
            for (int i = 0; i < NeatlyConfig.ASSETS_PATHS.Length; i++)
            {
                var fullPath = string.Format("{0}/{1}", NeatlyConfig.ASSETS_PATHS[i], name);
                if (File.Exists(fullPath))
                {
                    return fullPath;
                }
            }

            string inputPath = string.Format("{0}/{1}", NeatlyConfig.PATH_PACKAGE_BUNDLE, name);
#if NOT_DECOMPRESS
            return inputPath;
// #if UNITY_ANDROID
//             //找不到资源, 从包里复制
//             string outputPath = string.Format("{0}/{1}", NeatlyConfig.PATH_UPDATE_BUNDLE, name);
//             FileModule.Instance.CopyFile(inputPath, outputPath);
//             return outputPath;
// #else
//             return inputPath;
// #endif
#else
            //找不到资源, 从包里解压
            string outputPath = string.Format("{0}/{1}", NeatlyConfig.PATH_UPDATE_BUNDLE, name);
            FileModule.Instance.Uncompress(inputPath, outputPath);
            return outputPath;
#endif
        }
    }
}