重构中day1，写了很多，不知道怎么说清楚

Workbench/App.xaml.cs

@@ -1,18 +1,109 @@
-using Newtonsoft.Json;
+using Microsoft.Extensions.DependencyInjection;
+using Newtonsoft.Json;
 using Serein.Library;
+using Serein.Library.Api;
 using Serein.Library.Utils;
+using Serein.NodeFlow.Env;
+using Serein.Workbench.Api;
+using Serein.Workbench.Services;
+using Serein.Workbench.ViewModels;
 using System.Diagnostics;
 using System.IO;
 using System.Windows;
+using System.Windows.Threading;
 
 namespace Serein.Workbench
 {
 
+    public static class ServiceCollectionExtensions
+    {
+        /// <summary>
+        /// 注册ViewModel
+        /// </summary>
+        /// <param name="collection"></param>
+        public static void AddViewModelServices(this IServiceCollection collection)
+        {
+            collection.AddSingleton<Locator>(); // 主窗体
+
+            collection.AddSingleton<MainViewModel>();
+            collection.AddSingleton<MainMenuBarViewModel>();
+            collection.AddSingleton<FlowWorkbenchViewModel>();
+            collection.AddSingleton<BaseNodesViewModel>();
+            collection.AddSingleton<FlowLibrarysViewModel>();
+            collection.AddSingleton<FlowEditViewModel>();
+
+            collection.AddTransient<FlowCanvasViewModel>(); // 依赖信息
+        }
+
+        public static void AddWorkbenchServices(this IServiceCollection collection)
+        {
+            collection.AddSingleton<IFlowEEForwardingService, FlowEEForwardingService>(); // 流程事件管理
+            collection.AddSingleton<IWorkbenchEventService, WorkbenchEventService>(); // 流程事件管理
+            collection.AddSingleton<INodeOperationService, NodeOperationService>(); // 节点操作管理
+            // collection.AddSingleton<IKeyEventService, KeyEventService>(); // 按键事件管理
+                                                                          //collection.AddSingleton<FlowNodeControlService>(); // 流程节点控件管理
+        }
+
+
+        /// <summary>
+        /// 注册流程接口相关实例
+        /// </summary>
+        /// <param name="collection"></param>
+        public static void AddFlowServices(this IServiceCollection collection)
+        {
+            #region 创建实例
+            Func<SynchronizationContext> getSyncContext = null;
+            Dispatcher.CurrentDispatcher.Invoke(() =>
+            {
+                var uiContext = SynchronizationContext.Current; // 在UI线程上获取UI线程上下文信息
+                if (uiContext is not null)
+                {
+                    getSyncContext = () => uiContext;
+                }
+            });
+
+            UIContextOperation? uIContextOperation = null;
+            uIContextOperation = new UIContextOperation(getSyncContext); // 封装一个调用UI线程的工具类
+            var flowEnvironmentDecorator = new FlowEnvironmentDecorator();
+            flowEnvironmentDecorator.SetUIContextOperation(uIContextOperation);
+            collection.AddSingleton<UIContextOperation>(uIContextOperation); // 注册UI线程操作上下文
+            collection.AddSingleton<IFlowEnvironment>(flowEnvironmentDecorator); // 注册运行环境
+            collection.AddSingleton<IFlowEnvironmentEvent>(flowEnvironmentDecorator); // 注册运行环境事件
+                    
+            #endregion
+
+        }
+    }
+
+
+
     /// <summary>
     /// Interaction logic for App.xaml
     /// </summary>
     public partial class App : Application
     {
+        private static IServiceProvider? ServiceProvider;
+        public static T GetService<T>() where T : class
+        {
+            return ServiceProvider?.GetService<T>() ?? throw new NullReferenceException();
+        }
+
+        public App()
+        {
+            var collection = new ServiceCollection();
+            collection.AddWorkbenchServices();
+            collection.AddFlowServices();
+            collection.AddViewModelServices();
+            var services = collection.BuildServiceProvider(); // 绑定并返回获取实例的服务接口
+            App.ServiceProvider = services;
+            _ = Task.Run(async () =>
+            {
+                await Task.Delay(500);
+                await this.LoadLocalProjectAsync();
+            });
+        }
+
+
         private async Task LoadLocalProjectAsync()
         {
 
@@ -30,10 +121,14 @@ namespace Serein.Workbench
                 App.FlowProjectData = JsonConvert.DeserializeObject<SereinProjectData>(content);
                 App.FileDataPath = System.IO.Path.GetDirectoryName(filePath)!;   //  filePath;//
                 var dir = Path.GetDirectoryName(filePath);
+
+                App.GetService<IFlowEnvironment>().LoadProject(new FlowEnvInfo { Project = App.FlowProjectData },App.FileDataPath);
             }
 #endif
         }
         
+
+
         public static SereinProjectData? FlowProjectData { get; set; }
         public static string FileDataPath { get; set; } = "";
 
@@ -66,7 +161,7 @@ namespace Serein.Workbench
                 }
                 
             }
-            await this.LoadLocalProjectAsync();
+           
 
 
         }