refactor: rearrange and add solution for 4-series

src/PepperDash.Essentials.Core/Monitoring/Interfaces.cs

@@ -0,0 +1,57 @@
+
+using System;
+
+using PepperDash.Core;
+
+
+namespace PepperDash.Essentials.Core
+{
+	public interface IStatusMonitor
+	{
+		IKeyed Parent { get; }
+		event EventHandler<MonitorStatusChangeEventArgs> StatusChange;
+		MonitorStatus Status { get; }
+		string Message { get; }
+		BoolFeedback IsOnlineFeedback { get; set; }
+		void Start();
+		void Stop();
+	}
+
+
+	/// <summary>
+	/// Represents a class that has a basic communication monitoring
+	/// </summary>
+	public interface ICommunicationMonitor
+	{
+		StatusMonitorBase CommunicationMonitor { get; }
+	}
+
+	/// <summary>
+	/// StatusUnknown = 0, IsOk = 1, InWarning = 2, InError = 3
+	/// </summary>
+	public enum MonitorStatus
+	{
+        StatusUnknown = 0,
+		IsOk = 1, 
+        InWarning = 2, 
+        InError = 3
+	}
+
+	public class MonitorStatusChangeEventArgs : EventArgs
+	{
+		public MonitorStatus Status { get; private set; }
+		public string Message { get; private set; }
+	
+		public MonitorStatusChangeEventArgs(MonitorStatus status)
+		{
+			Status = status;
+			Message = status == MonitorStatus.IsOk ? "" : status.ToString();
+		}
+
+		public MonitorStatusChangeEventArgs(MonitorStatus status, string message)
+		{
+			Status = status;
+			Message = message;
+		}
+	}
+}