sharp-chat/SharpChat.SockChat/PacketsS2C/UserNameInUseErrorS2CPacket.cs

using System;

namespace SharpChat.SockChat.PacketsS2C {
    public class UserNameInUseErrorS2CPacket : ISockChatS2CPacket {
        private readonly long MessageId;
        private readonly DateTimeOffset TimeStamp;
        private readonly string UserName;

        public UserNameInUseErrorS2CPacket(string userName) {
            MessageId = SharpId.Next();
            TimeStamp = DateTimeOffset.UtcNow;
            UserName = userName;
        }

        public string Pack() {
            return string.Format(
                "2\t{0}\t-1\t1\fnameinuse\f{1}\t{2}\t10010",
                TimeStamp.ToUnixTimeSeconds(),
                UserName,
                MessageId
            );
        }
    }
}