Revert "Hope it is fine"

1 files changed, 65 insertions, 0 deletions

diff --git a/Software/Visual_Studio/Scripting/Tango.Scripting.Basic/ProjectSession.cs b/Software/Visual_Studio/Scripting/Tango.Scripting.Basic/ProjectSession.cs
new file mode 100644
index 000000000..6bd3d44b9
--- /dev/null
+++ b/Software/Visual_Studio/Scripting/Tango.Scripting.Basic/ProjectSession.cs
@@ -0,0 +1,65 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Tango.Scripting.Basic
+{
+    public class ProjectSession<T> where T : IContext
+    {
+        private Action _abortAction;
+        private TaskCompletionSource<object> _completion;
+
+        public event EventHandler<ProjectSessionStateChangedEventArgs> StateChanged;
+
+        public ProjectSessionState State { get; set; }
+
+        public Project<T> Project { get; set; }
+
+        public ProjectSession(Project<T> project, Action abortAction)
+        {
+            _completion = new TaskCompletionSource<object>();
+            Project = project;
+            _abortAction = abortAction;
+        }
+
+        public void Abort()
+        {
+            _abortAction();
+            State = ProjectSessionState.Aborted;
+            _completion.SetException(new OperationCanceledException("Project execution aborted."));
+            RaiseStateChanged();
+        }
+
+        internal void Failed(Exception ex)
+        {
+            State = ProjectSessionState.Failed;
+            _completion.SetException(ex);
+            RaiseStateChanged(null, ex);
+        }
+
+        internal void Completed(object returnValue)
+        {
+            State = ProjectSessionState.Completed;
+            _completion.SetResult(returnValue);
+            RaiseStateChanged(returnValue, null);
+        }
+
+        private void RaiseStateChanged(object returnValue = null, Exception ex = null)
+        {
+            StateChanged?.Invoke(this,
+                new ProjectSessionStateChangedEventArgs()
+                {
+                    ReturnValue = returnValue,
+                    State = State,
+                    Exception = ex
+                });
+        }
+
+        public Task<Object> WaitForCompletion()
+        {
+            return _completion.Task;
+        }
+    }
+}