port from perforce

intromat/Intromat/ViewModels/Nodes/GroupSubnetIONodeViewModel.cs

@@ -0,0 +1,74 @@
+using System;
+using System.Reactive.Linq;
+using Intromat.PersistentModel;
+using Intromat.PersistentModel.Nodes;
+using Intromat.Views;
+using NodeNetwork.Toolkit.Group.AddEndpointDropPanel;
+using NodeNetwork.ViewModels;
+using ReactiveUI;
+using Splat;
+
+namespace Intromat.ViewModels.Nodes
+{
+    public class GroupSubnetIONodeViewModel : CodeGenNodeViewModel
+    {
+        private CodeNodeGroupIOBinding? _ioBinding;
+        private bool _isEntranceNode;
+
+        static GroupSubnetIONodeViewModel()
+        {
+            Locator.CurrentMutable.Register(() => new GroupSubnetIONodeView(), typeof(IViewFor<GroupSubnetIONodeViewModel>));
+        }
+
+        public GroupSubnetIONodeViewModel()
+            : base(NodeType.Group)
+        {
+            this.WhenAnyValue(vm => vm.IsEntranceNode)
+                .StartWith(false)
+                .Subscribe(isEntrance => Name = isEntrance ? "Group Input" : "Group Output");
+        }
+
+        public NetworkViewModel? Subnet { get; set; }
+
+        public AddEndpointDropPanelViewModel? AddEndpointDropPanelVM { get; set; }
+
+        public bool IsEntranceNode 
+        { 
+            get => _isEntranceNode; 
+            set => this.RaiseAndSetIfChanged(ref _isEntranceNode, value);
+        }
+
+        public CodeNodeGroupIOBinding? IOBinding
+        {
+            get => _ioBinding;
+            set
+            {
+                if (_ioBinding != null)
+                    throw new InvalidOperationException("IOBinding is already set.");
+
+                _ioBinding = value;
+
+                AddEndpointDropPanelVM = new AddEndpointDropPanelViewModel(IsEntranceNode, !IsEntranceNode) { NodeGroupIOBinding = IOBinding };
+            }
+        }
+
+        public override NodeModelBase CreateModel()
+        {
+            return new GroupSubnetIOModel();
+        }
+
+        public override void LoadModel(NodeModelBase model)
+        {
+            base.LoadModel(model);
+            var groupSubnetIO = (GroupSubnetIOModel)model;
+            IsEntranceNode = groupSubnetIO.IsEntrance;
+        }
+
+        public override void SaveModel(NodeModelBase model)
+        {
+            base.SaveModel(model);
+            var groupSubnetIO = (GroupSubnetIOModel)model;
+            groupSubnetIO.IsEntrance = IsEntranceNode;
+        }
+    }
+}