using System;
using UnityEngine;
using YooAsset;

namespace AlicizaX.Resource.Runtime
{
    internal partial class ResourceModule
    {
        /// <summary>
        /// 根据运行模式创建初始化操作数据
        /// </summary>
        /// <returns></returns>
        private InitializationOperation CreateInitializationOperationHandler(ResourcePackage resourcePackage, string hostServerURL, string fallbackHostServerURL, string decryptionServicesName)
        {
            IDecryptionServices decryptionServices = CreateDecryptionServices(decryptionServicesName);
            switch (PlayMode)
            {
                case EPlayMode.EditorSimulateMode:
                {
                    // 编辑器下的模拟模式
                    return InitializeYooAssetEditorSimulateMode(resourcePackage, DefaultPackageName);
                }
                case EPlayMode.OfflinePlayMode:
                {
                    // 单机运行模式
                    return InitializeYooAssetOfflinePlayMode(resourcePackage, decryptionServices);
                }
                case EPlayMode.HostPlayMode:
                {
                    // 联机运行模式
                    return InitializeYooAssetHostPlayMode(resourcePackage, hostServerURL, fallbackHostServerURL, decryptionServices);
                }
                case EPlayMode.WebPlayMode:
                {
                    // WebGL运行模式
                    return InitializeYooAssetWebPlayMode(resourcePackage, hostServerURL, fallbackHostServerURL);
                }
                default:
                {
                    return null;
                }
            }
        }

        private IDecryptionServices CreateDecryptionServices(string decryptionServicesName)
        {
            IDecryptionServices decryptionServices = null;
            if (!string.IsNullOrEmpty(decryptionServicesName))
            {
                var decryptionServicesType = AlicizaX.Utility.Assembly.GetType(decryptionServicesName);
                decryptionServices = (IDecryptionServices)Activator.CreateInstance(decryptionServicesType);
            }

            return decryptionServices;
        }

        private InitializationOperation InitializeYooAssetEditorSimulateMode(ResourcePackage resourcePackage, string packageName)
        {
            var buildResult = EditorSimulateModeHelper.SimulateBuild(packageName);
            var packageRoot = buildResult.PackageRootDirectory;
            var createParameters = new EditorSimulateModeParameters();
            createParameters.EditorFileSystemParameters = FileSystemParameters.CreateDefaultEditorFileSystemParameters(packageRoot);
            // createParameters.EditorFileSystemParameters.AddParameter(FileSystemParametersDefine.DECRYPTION_SERVICES,new FileOffsetEncryption());
            return resourcePackage.InitializeAsync(createParameters);
        }

        private InitializationOperation InitializeYooAssetOfflinePlayMode(ResourcePackage resourcePackage, IDecryptionServices decryptionServices = null)
        {
            var buildinFileSystem = FileSystemParameters.CreateDefaultBuildinFileSystemParameters(decryptionServices);
            var initParameters = new OfflinePlayModeParameters();
            initParameters.BuildinFileSystemParameters = buildinFileSystem;
            return resourcePackage.InitializeAsync(initParameters);
        }

        private InitializationOperation InitializeYooAssetWebPlayMode(ResourcePackage resourcePackage, string hostServerURL, string fallbackHostServerURL)
        {
            var initParameters = new WebPlayModeParameters();
            FileSystemParameters webFileSystem = null;
#if UNITY_WEBGL
#if ENABLE_DOUYIN_MINI_GAME
            // 创建字节小游戏文件系统
            if (hostServerURL.IsNullOrWhiteSpace())
            {
                webFileSystem = ByteGameFileSystemCreater.CreateByteGameFileSystemParameters();
            }
            else
            {
                webFileSystem = ByteGameFileSystemCreater.CreateByteGameFileSystemParameters(hostServerURL);
            }
#elif ENABLE_WECHAT_MINI_GAME
            WeChatWASM.WXBase.PreloadConcurrent(10);
            // 创建微信小游戏文件系统
            if (hostServerURL.IsNullOrWhiteSpace())
            {
                webFileSystem = WechatFileSystemCreater.CreateWechatFileSystemParameters();
            }
            else
            {
                webFileSystem = WechatFileSystemCreater.CreateWechatPathFileSystemParameters(hostServerURL);
            }
#else
            // 创建默认WebGL文件系统
            webFileSystem = FileSystemParameters.CreateDefaultWebFileSystemParameters();
#endif
#else
            webFileSystem = FileSystemParameters.CreateDefaultWebServerFileSystemParameters();
#endif
            initParameters.WebServerFileSystemParameters = webFileSystem;
            return resourcePackage.InitializeAsync(initParameters);
        }

        private InitializationOperation InitializeYooAssetHostPlayMode(ResourcePackage resourcePackage, string hostServerURL, string fallbackHostServerURL, IDecryptionServices decryptionServices = null)
        {
            IRemoteServices remoteServices = new RemoteServices(hostServerURL, fallbackHostServerURL);
            var cacheFileSystem = FileSystemParameters.CreateDefaultCacheFileSystemParameters(remoteServices);
            var buildinFileSystem = FileSystemParameters.CreateDefaultBuildinFileSystemParameters(decryptionServices);
            var initParameters = new HostPlayModeParameters();
            initParameters.BuildinFileSystemParameters = buildinFileSystem;
            initParameters.CacheFileSystemParameters = cacheFileSystem;
            return resourcePackage.InitializeAsync(initParameters);
        }
    }
}