[cm] ability to ban user for an arbitrary period

modules/ChatManagement/ParamParser/BanLength.cs

@@ -0,0 +1,31 @@
+using BotFramework;
+using static System.UInt32;
+
+namespace West.TelegramBot.ChatManagement.ParamParser;
+
+public class BanLength
+{
+    public class Param
+    {
+        public uint DayCount;
+    }
+
+    public class Parser : IParameterParser<Param>
+    {
+        public Param DefaultInstance()
+        {
+            return new Param();
+        }
+
+        public bool TryGetValue(string text, out Param result)
+        {
+            result = DefaultInstance();
+
+            if (!TryParse(text, out result.DayCount))
+            {
+                result.DayCount = 7;
+            }
+            return true;
+        }
+    }
+}