Name adjustments and moved some things to the common lib.

SharpChat/ClientCommands/WhisperClientCommand.cs

@@ -0,0 +1,45 @@
+using SharpChat.Events;
+using SharpChat.S2CPackets;
+
+namespace SharpChat.ClientCommands {
+    public class WhisperClientCommand : ClientCommand {
+        public bool IsMatch(ClientCommandContext ctx) {
+            return ctx.NameEquals("whisper")
+                || ctx.NameEquals("msg");
+        }
+
+        public void Dispatch(ClientCommandContext ctx) {
+            long msgId = ctx.Chat.RandomSnowflake.Next();
+
+            if(ctx.Args.Length < 2) {
+                ctx.Chat.SendTo(ctx.User, new CommandResponseS2CPacket(msgId, LCR.COMMAND_FORMAT_ERROR));
+                return;
+            }
+
+            string whisperUserStr = ctx.Args.FirstOrDefault() ?? string.Empty;
+            User? whisperUser = ctx.Chat.Users.FirstOrDefault(u => u.NameEquals(whisperUserStr));
+
+            if(whisperUser == null) {
+                ctx.Chat.SendTo(ctx.User, new CommandResponseS2CPacket(msgId, LCR.USER_NOT_FOUND, true, whisperUserStr));
+                return;
+            }
+
+            if(whisperUser == ctx.User)
+                return;
+
+            ctx.Chat.DispatchEvent(new MessageCreateEvent(
+                msgId,
+                User.GetDMChannelName(ctx.User, whisperUser),
+                ctx.User.UserId,
+                ctx.User.UserName,
+                ctx.User.Colour,
+                ctx.User.Rank,
+                ctx.User.NickName,
+                ctx.User.Permissions,
+                DateTimeOffset.Now,
+                string.Join(' ', ctx.Args.Skip(1)),
+                true, false, false
+            ));
+        }
+    }
+}