Create LibationUiBase for shared UI code

Source/LibationUiBase/LogMe.cs

@@ -0,0 +1,56 @@
+using System;
+using System.Threading.Tasks;
+
+namespace LibationUiBase
+{
+	// decouple serilog and form. include convenience factory method
+	public class LogMe
+	{
+		public event EventHandler<string> LogInfo;
+		public event EventHandler<string> LogErrorString;
+		public event EventHandler<(Exception, string)> LogError;
+
+		private LogMe()
+		{
+			LogInfo += (_, text) => Serilog.Log.Logger.Information($"Automated backup: {text}");
+			LogErrorString += (_, text) => Serilog.Log.Logger.Error(text);
+			LogError += (_, tuple) => Serilog.Log.Logger.Error(tuple.Item1, tuple.Item2 ?? "Automated backup: error");
+		}
+		private static ILogForm LogForm;
+		public static LogMe RegisterForm<T>(T form) where T : ILogForm
+		{
+			var logMe = new LogMe();
+
+			if (form is null)
+				return logMe;
+
+			LogForm = form;
+
+			logMe.LogInfo += LogMe_LogInfo;
+			logMe.LogErrorString += LogMe_LogErrorString;
+			logMe.LogError += LogMe_LogError;
+
+			return logMe;
+		}
+
+		private static async void LogMe_LogError(object sender, (Exception, string) tuple)
+		{
+			await Task.Run(() => LogForm?.WriteLine(tuple.Item2 ?? "Automated backup: error"));
+			await Task.Run(() => LogForm?.WriteLine("ERROR: " + tuple.Item1.Message));
+		}
+
+		private static async void LogMe_LogErrorString(object sender, string text)
+		{
+			await Task.Run(() => LogForm?.WriteLine(text));
+		}
+
+		private static async void LogMe_LogInfo(object sender, string text)
+		{
+			await Task.Run(() => LogForm?.WriteLine(text));
+		}
+
+		public void Info(string text) => LogInfo?.Invoke(this, text);
+		public void Error(string text) => LogErrorString?.Invoke(this, text);
+		public void Error(Exception ex, string text = null) => LogError?.Invoke(this, (ex, text));
+	}
+}