Create common Event

Used to streamline usage of c# events with public
Invoke and Subscribe methods

#164

Author: achobanov

src/v4/Common/Common/Events/Event.cs

@@ -0,0 +1,60 @@
+using Common.Exceptions;
+
+namespace Common.Events;
+
+public class Event
+{
+    private event EventHandler? GenericEvent;
+
+    public void Invoke(object sender)
+    {
+        if (sender == null)
+        {
+            throw new CommonException("Invalid invocation attempt - sender is null");
+        }
+        GenericEvent?.Invoke(sender, EventArgs.Empty);
+    }
+    public void Subscrive(Action<object> action)
+    {
+        GenericEvent += (sender, _) => action(sender!);
+    }
+}
+
+public class Event<T>
+    where T : class
+{
+    private event EventHandler<T>? GenericEvent;
+
+    public void Invoke(object sender, T data)
+    {
+        if (sender == null)
+        {
+            throw new CommonException("Invalid invocation attempt - sender is null");
+        }
+        GenericEvent?.Invoke(sender, data);
+    }
+    public void Subscrive(Action<object, T> action)
+    {
+        GenericEvent += (sender, data) => action(sender!, data);
+    }
+}
+
+public class Event<T1, T2>
+    where T1 : class
+    where T2 : class
+{
+    private event EventHandler<(T1, T2)>? GenericEvent;
+
+    public void Invoke(object sender, T1 data1, T2 data2)
+    {
+        if (sender == null)
+        {
+            throw new CommonException("Invalid invocation attempt - sender is null");
+        }
+        GenericEvent?.Invoke(sender, (data1, data2));
+    }
+    public void Subscrive(Action<object, T1, T2> action)
+    {
+        GenericEvent += (sender, data) => action(sender!, data.Item1, data.Item2);
+    }
+}

src/v4/Common/Common/Exceptions/CommonException.cs

@@ -0,0 +1,8 @@
+namespace Common.Exceptions;
+
+public class CommonException : Exception
+{
+    public CommonException(string message) : base(message)
+    {
+    }
+}

src/v4/Common/Common/Utilities/ReflectionUtilities.cs

@@ -0,0 +1,5 @@
+namespace Common.Utilities;
+
+public static class ReflectionUtilities
+{
+}