port from perforce

intromat/Intromat/Actions/Hierarchy/CreateModuleAction.cs

@@ -0,0 +1,34 @@
+using System.IO;
+using Intromat.Interfaces;
+using Intromat.ViewModels;
+
+namespace Intromat.Actions.Hierarchy
+{
+    public class CreateModuleAction : IUndoItem
+    {
+        private readonly ModuleViewModel _module;
+        private readonly ProjectViewModel _parent;
+
+        public CreateModuleAction(string name, ProjectViewModel parent)
+        {
+            var modulePath = Path.GetFullPath(Path.Combine(Path.GetDirectoryName(parent.FullPath)!, name, $"{name}.imodule"));
+            _module = new ModuleViewModel(parent, name, modulePath);
+            File = _parent = parent;
+        }
+
+        public IFile File { get; }
+
+        public void Redo()
+        {
+            _parent.Modules.Add(_module);
+            _parent.IsExpanded = true;
+            _module.IsSelected = true;
+        }
+
+        public void Undo()
+        {
+            _parent.Modules.Remove(_module);
+            _parent.IsSelected = true;
+        }
+    }
+}