using System;
using System.Collections;
// using UniFramework.Event;
using UnityEngine;
using YooAsset;

public class Init : MonoBehaviour
{
    /// <summary>
    /// 资源系统运行模式
    /// </summary>
    public EPlayMode PlayMode = EPlayMode.EditorSimulateMode;

    public string PackageName = "DefaultPackage";
    public string SceneName;

    void Awake()
    {
        Debug.Log($"资源系统运行模式：{PlayMode}");
        Application.targetFrameRate = 60;
        Application.runInBackground = true;
        DontDestroyOnLoad(this.gameObject);
    }

    IEnumerator Start()
    {
        // 游戏管理器
        // GameManager.Instance.Behaviour = this;
        //
        // // 初始化事件系统
        // UniEvent.Initalize();

        // 初始化资源系统
        YooAssets.Initialize();

        // 加载更新页面
        var go = Resources.Load<GameObject>("PatchWindow");
        GameObject.Instantiate(go);

        // 开始补丁更新流程
        // var operation = new PatchOperation("DefaultPackage", PlayMode);
        // YooAssets.StartOperation(operation);
        yield return InitPackage();

        // 设置默认的资源包
        var gamePackage = YooAssets.GetPackage("DefaultPackage");
        YooAssets.SetDefaultPackage(gamePackage);

        // 切换到主页面场景
        // SceneEventDefine.ChangeToHomeScene.SendEventMessage();
        YooAssets.LoadSceneSync(SceneName);
    }

    private void Update()
    {
        if (Input.GetKeyDown(KeyCode.A))
        {
            YooAssets.LoadSceneSync(SceneName);
        }
    }


    #region FsmInitializePackage

    private IEnumerator InitPackage()
    {
        // 创建资源包裹类
        var package = YooAssets.TryGetPackage(PackageName);
        if (package == null)
            package = YooAssets.CreatePackage(PackageName);

        // 编辑器下的模拟模式
        InitializationOperation initializationOperation = null;
        if (PlayMode == EPlayMode.EditorSimulateMode)
        {
            var buildResult = EditorSimulateModeHelper.SimulateBuild(PackageName);
            var packageRoot = buildResult.PackageRootDirectory;
            var createParameters = new EditorSimulateModeParameters();
            createParameters.EditorFileSystemParameters =
                FileSystemParameters.CreateDefaultEditorFileSystemParameters(packageRoot);
            initializationOperation = package.InitializeAsync(createParameters);
        }

        // 单机运行模式
        if (PlayMode == EPlayMode.OfflinePlayMode)
        {
            var createParameters = new OfflinePlayModeParameters();
            createParameters.BuildinFileSystemParameters =
                FileSystemParameters.CreateDefaultBuildinFileSystemParameters();
            initializationOperation = package.InitializeAsync(createParameters);
        }

        // 联机运行模式
        if (PlayMode == EPlayMode.HostPlayMode)
        {
            string defaultHostServer = GetHostServerURL();
            string fallbackHostServer = GetHostServerURL();
            IRemoteServices remoteServices = new RemoteServices(defaultHostServer, fallbackHostServer);
            var createParameters = new HostPlayModeParameters();
            createParameters.BuildinFileSystemParameters =
                FileSystemParameters.CreateDefaultBuildinFileSystemParameters();
            createParameters.CacheFileSystemParameters =
                FileSystemParameters.CreateDefaultCacheFileSystemParameters(remoteServices);
            initializationOperation = package.InitializeAsync(createParameters);
        }

        // WebGL运行模式
        if (PlayMode == EPlayMode.WebPlayMode)
        {
#if UNITY_WEBGL && WEIXINMINIGAME && !UNITY_EDITOR
            var createParameters = new WebPlayModeParameters();
			string defaultHostServer = GetHostServerURL();
            string fallbackHostServer = GetHostServerURL();
            string packageRoot = $"{WeChatWASM.WX.env.USER_DATA_PATH}/__GAME_FILE_CACHE"; //注意：如果有子目录，请修改此处！
            IRemoteServices remoteServices = new RemoteServices(defaultHostServer, fallbackHostServer);
            createParameters.WebServerFileSystemParameters =
 WechatFileSystemCreater.CreateFileSystemParameters(packageRoot, remoteServices);
            initializationOperation = package.InitializeAsync(createParameters);
#else
            var createParameters = new WebPlayModeParameters();
            createParameters.WebServerFileSystemParameters =
                FileSystemParameters.CreateDefaultWebServerFileSystemParameters();
            initializationOperation = package.InitializeAsync(createParameters);
#endif
        }

        yield return initializationOperation;

        // 如果初始化失败弹出提示界面
        if (initializationOperation.Status != EOperationStatus.Succeed)
        {
            Debug.LogWarning($"{initializationOperation.Error}");
            // PatchEventDefine.InitializeFailed.SendEventMessage();
        }
        else
        {
            // _machine.ChangeState<FsmRequestPackageVersion>();
            yield return StartCoroutine(UpdatePackageVersion());
        }
    }

    /// <summary>
    /// 获取资源服务器地址
    /// </summary>
    private string GetHostServerURL()
    {
        //string hostServerIP = "http://10.0.2.2"; //安卓模拟器地址
        string hostServerIP = "http://127.0.0.1";
        string appVersion = "v1.0";

#if UNITY_EDITOR
        if (UnityEditor.EditorUserBuildSettings.activeBuildTarget == UnityEditor.BuildTarget.Android)
            return $"{hostServerIP}/CDN/Android/{appVersion}";
        else if (UnityEditor.EditorUserBuildSettings.activeBuildTarget == UnityEditor.BuildTarget.iOS)
            return $"{hostServerIP}/CDN/IPhone/{appVersion}";
        else if (UnityEditor.EditorUserBuildSettings.activeBuildTarget == UnityEditor.BuildTarget.WebGL)
            return $"{hostServerIP}/CDN/WebGL/{appVersion}";
        else
            return $"{hostServerIP}/CDN/PC/{appVersion}";
#else
        if (Application.platform == RuntimePlatform.Android)
            return $"{hostServerIP}/CDN/Android/{appVersion}";
        else if (Application.platform == RuntimePlatform.IPhonePlayer)
            return $"{hostServerIP}/CDN/IPhone/{appVersion}";
        else if (Application.platform == RuntimePlatform.WebGLPlayer)
            return $"{hostServerIP}/CDN/WebGL/{appVersion}";
        else
            return $"{hostServerIP}/CDN/PC/{appVersion}";
#endif
    }

    /// <summary>
    /// 远端资源地址查询服务类
    /// </summary>
    private class RemoteServices : IRemoteServices
    {
        private readonly string _defaultHostServer;
        private readonly string _fallbackHostServer;

        public RemoteServices(string defaultHostServer, string fallbackHostServer)
        {
            _defaultHostServer = defaultHostServer;
            _fallbackHostServer = fallbackHostServer;
        }

        string IRemoteServices.GetRemoteMainURL(string fileName)
        {
            return $"{_defaultHostServer}/{fileName}";
        }

        string IRemoteServices.GetRemoteFallbackURL(string fileName)
        {
            return $"{_fallbackHostServer}/{fileName}";
        }
    }

    #endregion

    #region FsmRequestPackageVersion

    private IEnumerator UpdatePackageVersion()
    {
        var package = YooAssets.GetPackage(PackageName);
        var operation = package.RequestPackageVersionAsync();
        yield return operation;

        if (operation.Status != EOperationStatus.Succeed)
        {
            Debug.LogWarning(operation.Error);
            // PatchEventDefine.PackageVersionRequestFailed.SendEventMessage();
        }
        else
        {
            Debug.Log($"Request package version : {operation.PackageVersion}");
            // _machine.SetBlackboardValue("PackageVersion", operation.PackageVersion);
            // _machine.ChangeState<FsmUpdatePackageManifest>();
            packageVersion = operation.PackageVersion;
            yield return StartCoroutine(UpdateManifest());
        }
    }
string packageVersion;
    #endregion

    #region FsmUpdatePackageManifest

    private IEnumerator UpdateManifest()
    {
        var package = YooAssets.GetPackage(PackageName);
        var operation = package.UpdatePackageManifestAsync(packageVersion);
        yield return operation;

        if (operation.Status != EOperationStatus.Succeed)
        {
            Debug.LogWarning(operation.Error);
            // PatchEventDefine.PackageManifestUpdateFailed.SendEventMessage();
            yield break;
        }
        else
        {
            // _machine.ChangeState<FsmCreateDownloader>();
        }
    }

    #endregion
}