using System;
using System.IO;
using Cysharp.Threading.Tasks;
using Main;
using Newtonsoft.Json;
using UnityEditor;
using UnityEngine;
using UnityEngine.Assertions;
using YooAsset;
using Object = UnityEngine.Object;

namespace Stary.Evo
{
    public class ResStartState : AbstractFSMIStateAsync
    {
        public ResStartState(IFsmSystemAsync system) : base(system)
        {
        }


        public override async UniTask OnEnterAsync()
        {
            Debug.Log("UnityEvo:启动开始资源初始化...");


            // 初始化资源系统
            YooAssets.Initialize();
            //初始化资源加载模块
            // 增加包存在性检查
            var package = YooAssets.TryGetPackage(AppConfig.PackageDomainName);
            if (package == null)
            {
                Debug.LogWarning($"UnityEvo:资源包 {AppConfig.PackageDomainName} 不存在，正在尝试创建...");
                package = YooAssets.CreatePackage(AppConfig.PackageDomainName);
            }

            YooAssets.SetDefaultPackage(package);

            // 初始化资源包
#if EDITOR_SIMULATEMODE
            await EDITOR_SIMULATEMODE(package);
            await FsmSystem.SetCurState(nameof(ResEditorSimulateState));
#elif OFFLINE_PLAYMODE
            await OFFLINE_PLAYMODE(package);
            await FsmSystem.SetCurState(nameof(ResUpdateLocalState));
#elif HOST_PLAYMODE
            //登录
            if (((FsmLoadSystem)FsmSystem).IsLogin)
                await HOST_PLAYMODE(package);
            else
            {
                await OFFLINE_PLAYMODE(package);
                await ChChe_PLAYMODE(package);
            }


            await FsmSystem.SetCurState(nameof(ResUpdateLocalState));

#elif WEB_PLAYMODE
            // IRemoteServices remoteServices = new RemoteServices(defaultHostServer, fallbackHostServer);
            // var webServerFileSystemParams = FileSystemParameters.CreateDefaultWebServerFileSystemParameters();
            // var webRemoteFileSystemParams =
            //     FileSystemParameters.CreateDefaultWebRemoteFileSystemParameters(remoteServices); //支持跨域下载
            //
            // var initParameters = new WebPlayModeParameters();
            // initParameters.WebServerFileSystemParameters = webServerFileSystemParams;
            // initParameters.WebRemoteFileSystemParameters = webRemoteFileSystemParams;
            //
            // var initOperation = package.InitializeAsync(initParameters);
            // await initOperation;
            //
            // if (initOperation.Status == EOperationStatus.Succeed)
            //     Debug.Log("UnityEvo:资源包初始化成功！");
            // else
            //    Debug.LogError($"UnityEvo:资源包初始化失败：{initOperation.Error}");

            Debug.LogError($"UnityEvo:暂不支持");
#endif
        }

        public override UniTask OnEnterAsync<T>(T param)
        {
            return UniTask.CompletedTask;
        }

        public override UniTask OnEnterAsync<T1, T2>(T1 param1, T2 param2)
        {
            return UniTask.CompletedTask;
        }

        public override void OnUpdate()
        {
            base.OnUpdate();
        }


        public override UniTask OnExitAsync()
        {
            return UniTask.CompletedTask;
        }

        private async UniTask EDITOR_SIMULATEMODE(ResourcePackage package)
        {
            var initParams = YooAssetFileSystem.EditorSimulateInitializeParameter(package.PackageName);
            var initialization = package.InitializeAsync(initParams);
            await initialization;
            if (initialization.Status == EOperationStatus.Succeed)
            {
                Assert.AreEqual(EOperationStatus.Succeed, initialization.Status);
                Debug.Log("UnityEvo:资源包初始化成功！");
            }
            else
            {
                Debug.LogError($"UnityEvo:资源包初始化失败：{initialization.Error}");
            }
        }

        private async UniTask ChChe_PLAYMODE(ResourcePackage package)
        {
            //Debug.Log("UnityEvo:网络连接不通畅，切换缓存加载！");
            var initParams = YooAssetFileSystem.HostInitializeParameter();
            var initOperation = package.InitializeAsync(initParams);
            await initOperation;
            if (initOperation.Status == EOperationStatus.Succeed)
                Debug.Log("UnityEvo:从本地缓存中资源包，初始化成功！");
            else
            {
                Debug.LogError($"UnityEvo:从本地缓存中资源包，初始化失败：{initOperation.Error}");
            }


            var operation = package.RequestPackageVersionAsync();
            await operation;
            if (operation.Status == EOperationStatus.Succeed)
            {
                PlayerPrefs.SetString($"{AppConfig.PackageDomainName}_GAME_VERSION", operation.PackageVersion);
                Debug.Log("UnityEvo:从本地缓存中加载资源包，初始化获取版本号成功！");
            }
            else
            {
                Debug.LogError($"UnityEvo:从本地缓存中加载资源包，初始化获取版本号失败！");
            }
        }

        private async UniTask OFFLINE_PLAYMODE(ResourcePackage package)
        {
            Debug.Log("UnityEvo:网络连接不通畅，切换缓存加载！");
            CopyLocalFile();
            // var initParams = YooAssetFileSystem.OfflineInitializeParameter();
            // var initOperation = package.InitializeAsync(initParams);
            // await initOperation;
            //
            // var operation = package.RequestPackageVersionAsync();
            // await operation;
            // if (operation.Status == EOperationStatus.Succeed)
            // {
            //     PlayerPrefs.SetString($"{AppConfig.PackageDomainName}_GAME_VERSION", operation.PackageVersion);
            //     Debug.Log("UnityEvo:从本地StreamingAssets加载资源包，初始化获取版本号成功！");
            // }
            // else
            // {
            //     Debug.LogError($"UnityEvo:从本地StreamingAssets加载资源包，初始化获取版本号失败！");
            // }
            //
            // if (initOperation.Status == EOperationStatus.Succeed)
            //     Debug.Log("UnityEvo:从本地StreamingAssets加载资源包，初始化成功！");
            // else
            //     Debug.LogError($"UnityEvo:从本地StreamingAssets加载资源包，初始化失败：{initOperation.Error}");
        }

        private void CopyLocalFile()
        {
#if UNITY_ANDROID
            // 将StreamingAssets下指定的package拷贝到目标路径
            string sourcePath = Path.Combine(Application.streamingAssetsPath,
                YooAssetSettingsData.GetDefaultYooFolderName(), AppConfig.PackageDomainName);
            string loadPath = Path.Combine(Application.temporaryCachePath, "DownloadedContent",
                AppConfig.PackageDomainName);

            // 创建目标目录（如果不存在）
            if (!Directory.Exists(loadPath))
            {
                Directory.CreateDirectory(loadPath);
            }
            else
            {
                return;
            }

            // 检查源路径是否存在
            if (Directory.Exists(sourcePath))
            {
                // 拷贝所有文件
                string[] files = Directory.GetFiles(sourcePath, "*", SearchOption.AllDirectories);
                foreach (string file in files)
                {
                    // 计算目标文件路径
                    string relativePath = Path.GetRelativePath(sourcePath, file);
                    string destFile = Path.Combine(loadPath, relativePath);

                    // 创建目标子目录（如果不存在）
                    string destDir = Path.GetDirectoryName(destFile);
                    if (!Directory.Exists(destDir))
                    {
                        Directory.CreateDirectory(destDir);
                    }

                    // 拷贝文件
                    File.Copy(file, destFile, true);
                }

                Debug.Log($"UnityEvo:成功将StreamingAssets下的{AppConfig.PackageDomainName}包拷贝到{loadPath}");
            }
            else
            {
                Debug.LogError($"UnityEvo:StreamingAssets下的{AppConfig.PackageDomainName}包不存在");
            }
#endif
        }

        public async UniTask HOST_PLAYMODE(ResourcePackage package)
        {
            // 新增平台判断代码
#if UNITY_EDITOR
            BuildTarget buildTarget = UnityEditor.EditorUserBuildSettings.activeBuildTarget;
            AppConfig.Platform = buildTarget.ToString();
#else
            AppConfig.Platform = Application.platform.ToString();
#endif
            Debug.Log($"目标平台标识: {AppConfig.Platform}");

            // 请求资源版本
            string url = $"{AppConfig.IpConfig}/ResDomain/GetResDomainByDomain";
            var resDmainRequst = new ResDmainRequst()
            {
                ProductName = AppConfig.ProductName,
                DomainName = AppConfig.PackageDomainName,
                Platform = AppConfig.Platform,
            };
            //获取服务器版本
            var resDmainMessageEntity = await WebRequestSystem.Post(url, JsonConvert.SerializeObject(resDmainRequst));
            if (resDmainMessageEntity.code == 200)
            {
                ResDmainResponse resDmainResponse =
                    JsonConvert.DeserializeObject<ResDmainResponse>(resDmainMessageEntity.data.ToString());
                //获取当前版本
                var oldVersion = PlayerPrefs.GetString($"{AppConfig.PackageDomainName}_GAME_VERSION");
                //版本不一致，开始下载
                if (resDmainResponse.PackageVersion != oldVersion)
                {
                    await Download(resDmainResponse.DocumentFileId);
                    PlayerPrefs.SetString($"{AppConfig.PackageDomainName}_GAME_VERSION",
                        resDmainResponse.PackageVersion);
                }
                else //版本一致，加载缓存资源
                {
                    Debug.Log($"UnityEvo:资源版本一致，自动跳过更新...");
                }
            }
            else
            {
                Debug.LogError($"UnityEvo:获取资源版本失败: 【{resDmainMessageEntity.message}】");
            }

            var initParams = YooAssetFileSystem.HostInitializeParameter();
            // initParameters.CacheFileSystemParameters = cacheFileSystemParams;

            var initOperation = package.InitializeAsync(initParams);

            await initOperation;

            if (initOperation.Status == EOperationStatus.Succeed)
                Debug.Log("UnityEvo:从远程加载资源包，初始化成功！");
            else
                Debug.LogError($"UnityEvo:从远程加载资源包，初始化失败：{initOperation.Error}");
        }

        public async UniTask Download(string fileId)
        {
            // 在任意MonoBehaviour或DomainBase派生类中
            string loadPath = Path.Combine(Application.temporaryCachePath, "DownloadedContent",
                AppConfig.PackageDomainName);
            //string loadPath = $"{Application.persistentDataPath}/DownloadedContent/{AppConfig.PackageDomainName}";
            if (Directory.Exists(loadPath))
            {
                Directory.Delete(loadPath, true);
                // 等一帧，让系统真正释放句柄
                await UniTask.DelayFrame(1);
            }

            FsmLoadSystem loadSystem = FsmSystem as FsmLoadSystem;
            if (loadSystem.ProgressBarPanel == null)
            {
                loadSystem.ProgressBarPanel = Object.Instantiate(Resources.Load<GameObject>("ProgressBarPanel"),
                    Camera.main.transform).GetOrAddComponent<ProgressBarPanel>();
            }

            await ZipTool.DownloadAndUnzipAsync(fileId, loadPath, DownLoadProgress, UnzipProgress);
        }

        private void DownLoadProgress(float progress)
        {
            Debug.Log($"下载进度：{progress:P0}");
            FsmLoadSystem loadSystem = FsmSystem as FsmLoadSystem;
            loadSystem.ProgressBarPanel.SetProgressBarValue("下载中", progress);
        }

        private void UnzipProgress(float progress)
        {
            Debug.Log($"解压进度：{progress:P0}");
            FsmLoadSystem loadSystem = FsmSystem as FsmLoadSystem;
            loadSystem.ProgressBarPanel.SetProgressBarValue("解压中", progress);
        }
    }
}