LocalFlowEnvironment文件丢失，需要重写

NodeFlow/Services/FlowModelService.cs

@@ -0,0 +1,99 @@
+using Serein.Library;
+using Serein.Library.Api;
+using Serein.NodeFlow.Model.Node;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Serein.NodeFlow.Services
+{
+    public class FlowModelService
+    {
+        private readonly IFlowEnvironment environment;
+
+        public FlowModelService(IFlowEnvironment environment)
+        {
+            this.environment = environment;
+        }
+
+        /// <summary>
+        /// 环境加载的节点集合
+        /// Node Guid - Node Model
+        /// </summary>
+        private Dictionary<string, IFlowNode> NodeModels { get; } = [];
+
+        /// <summary>
+        /// 运行环境加载的画布集合
+        /// </summary>
+        private Dictionary<string, FlowCanvasDetails> FlowCanvass { get; } = [];
+
+        /// <summary>
+        /// 存放触发器节点（运行时全部调用）
+        /// </summary>
+        private List<SingleFlipflopNode> FlipflopNodes { get; } = [];
+
+        public IFlowNode? GetNodeModel(string guid)
+        {
+            NodeModels.TryGetValue(guid, out var nodeModel);
+            return nodeModel;
+        }
+        
+        public FlowCanvasDetails? GetCanvasModel(string guid)
+        {
+            FlowCanvass.TryGetValue(guid, out var nodeModel);
+            return nodeModel;
+        }
+
+        public bool TryGetNodeModel(string guid,out IFlowNode flowNode)
+        {
+            return NodeModels.TryGetValue(guid, out flowNode!);
+        }
+
+        public bool TryGetCanvasModel(string guid,out FlowCanvasDetails flowCanvas)
+        {
+            return FlowCanvass.TryGetValue(guid, out flowCanvas!);;
+        }
+
+
+        public bool ContainsNodeModel(string guid)
+        {
+            return NodeModels.ContainsKey(guid);
+        }
+        
+        public bool ContainsCanvasModel(string guid)
+        {
+            return FlowCanvass.ContainsKey(guid);
+        }
+
+        public bool AddNodeModel(IFlowNode flowNode)
+        {
+            ArgumentNullException.ThrowIfNull(flowNode);
+            ArgumentNullException.ThrowIfNull(flowNode.Guid);
+            return NodeModels.TryAdd(flowNode.Guid, flowNode);
+        }
+        public bool AddCanvasModel(FlowCanvasDetails flowCanvasDetails)
+        {
+            ArgumentNullException.ThrowIfNull(flowCanvasDetails);
+            ArgumentNullException.ThrowIfNull(flowCanvasDetails.Guid);
+            return FlowCanvass.TryAdd(flowCanvasDetails.Guid, flowCanvasDetails);
+        }
+        public bool RemoveNodeModel(IFlowNode flowNode)
+        {
+            ArgumentNullException.ThrowIfNull(flowNode.Guid);
+            return NodeModels.Remove(flowNode.Guid);
+        }
+        public bool RemoveCanvasModel(FlowCanvasDetails flowCanvasDetails)
+        {
+            ArgumentNullException.ThrowIfNull(flowCanvasDetails.Guid);
+            return FlowCanvass.Remove(flowCanvasDetails.Guid);
+        }
+
+        public List<IFlowNode> GetAllNodeModel() => [.. NodeModels.Values];
+        public List<FlowCanvasDetails> GetAllCanvasModel() => [.. FlowCanvass.Values];
+
+
+
+    }
+}