sharp-chat/SharpChat.SockChat/Commands/UserAFKCommand.cs

using SharpChat.Events;
using System.Linq;

namespace SharpChat.SockChat.Commands {
    public class UserAFKCommand : ISockChatClientCommand {
        private const string DEFAULT = "AFK";
        private const int MAX_LENGTH = 5;

        public bool IsMatch(SockChatClientCommandContext ctx) {
            return ctx.NameEquals("afk");
        }

        public void Dispatch(SockChatClientCommandContext ctx) {
            string? statusText = ctx.Args.FirstOrDefault();
            if(string.IsNullOrWhiteSpace(statusText))
                statusText = DEFAULT;
            else {
                statusText = statusText.Trim();
                if(statusText.Length > MAX_LENGTH)
                    statusText = statusText[..MAX_LENGTH].Trim();
            }

            ctx.Chat.Events.Dispatch(
                "user:status",
                ctx.User,
                new UserStatusUpdateEventData(UserStatus.Away, statusText)
            );
        }
    }
}