dm users when banned, show command exceptions better

DeukBot4/MessageHandlers/CommandHandler/CommandHandler.cs

@@ -73,7 +73,15 @@ namespace DeukBot4.MessageHandlers.CommandHandler
                             $"User is trying to use blocked command in PM: {message.Author.Username}");
                         return;
                     }
-                    await req.Item1.Command.Invoke(req.Item1);
+
+                    try
+                    {
+                        await req.Item1.Command.Invoke(req.Item1);
+                    }
+                    catch (Exception e)
+                    {
+                        await Logger.Log("An error occured: \n" + e);
+                    }
                     break;
                 case CommandRequest.RequestCode.UnknownCommand:
                     var permission = await PermissionValidator.GetUserPermissionLevel(message);

DeukBot4/MessageHandlers/CommandHandler/Commands/ModeratorCommands.cs

@@ -96,6 +96,21 @@ namespace DeukBot4.MessageHandlers.CommandHandler
                 reason = request.Parameters[1].AsString();
             }
 
+            string desc = "No reason was given.";
+            if (!string.IsNullOrWhiteSpace(reason))
+            {
+                desc = "The given reason was: " + desc;
+            }
+
+            var eb = new EmbedBuilder();
+            eb.Color = Color.Gold;
+            eb.Title = "You were banned from " + channel.Guild.Name;
+            eb.Description = desc;
+            eb.Author = new EmbedAuthorBuilder();
+            eb.Author.Name = request.OriginalMessage.Author.Username;
+            eb.Author.IconUrl = request.OriginalMessage.Author.GetAvatarUrl();
+            eb.Timestamp = request.OriginalMessage.Timestamp;
+            user.SendMessageAsync("", embed: eb.Build());
             // and ban
             await channel.Guild.AddBanAsync(user, 0, reason);
             await request.SendMessageAsync($"User was banned: {user.Username}");

DeukBot4/MessageHandlers/CommandHandler/RequestStructure/ParameterMatcher.cs

@@ -1,8 +1,6 @@
 using System;
-using System.Linq;
 using System.Text;
 using System.Text.RegularExpressions;
-using Discord.Net.Udp;
 
 namespace DeukBot4.MessageHandlers.CommandHandler.RequestStructure
 {