sharp-chat/SharpChat.SockChat/PacketsS2C/UserUpdateNotificationS2CPacket.cs

using System;

namespace SharpChat.SockChat.PacketsS2C {
    public class UserUpdateNotificationS2CPacket : ISockChatS2CPacket {
        private readonly long MessageId;
        private readonly DateTimeOffset TimeStamp;
        private readonly string PreviousName;
        private readonly string NewName;

        public UserUpdateNotificationS2CPacket(string previousName, string newName) {
            MessageId = SharpId.Next();
            TimeStamp = DateTimeOffset.UtcNow;
            PreviousName = previousName;
            NewName = newName;
        }

        public string Pack() {
            return string.Format(
                "2\t{0}\t-1\t0\fnick\f{1}\f{2}\t{3}\t10010",
                TimeStamp.ToUnixTimeSeconds(),
                PreviousName,
                NewName,
                MessageId
            );
        }
    }
}