sharp-chat/SharpChat/Packet/LegacyCommandResponse.cs

using System;
using System.Text;

namespace SharpChat.Packet {
    public class LegacyCommandResponse : ServerPacket {
        private readonly bool IsError;
        private readonly string StringId;
        private readonly object[] Arguments;

        public LegacyCommandResponse(
            string stringId,
            bool isError = true,
            params object[] args
        ) {
            IsError = isError;
            StringId = stringId;
            Arguments = args;
        }

        public override string Pack() {
            StringBuilder sb = new();

            if(StringId == LCR.WELCOME)
                sb.AppendFormat(
                    "7\t1\t{0}\t-1\tChatBot\tinherit\t\t",
                    DateTimeOffset.Now.ToUnixTimeSeconds()
                );
            else
                sb.AppendFormat(
                    "2\t{0}\t-1\t",
                    DateTimeOffset.Now.ToUnixTimeSeconds()
                );

            sb.AppendFormat(
                "{0}\f{1}",
                IsError ? 1 : 0,
                StringId == LCR.WELCOME ? LCR.BROADCAST : StringId
            );

            foreach(object arg in Arguments)
                sb.AppendFormat("\f{0}", arg);

            sb.Append('\t');

            if(StringId == LCR.WELCOME)
                sb.AppendFormat("{0}\t0", StringId);
            else
                sb.Append(SequenceId);

            sb.Append("\t10010");

            return sb.ToString();
        }
    }

    // Abbreviated class name because otherwise shit gets wide
    public static class LCR {
        public const string GENERIC_ERROR = "generr";
        public const string COMMAND_NOT_FOUND = "nocmd";
        public const string COMMAND_NOT_ALLOWED = "cmdna";
        public const string COMMAND_FORMAT_ERROR = "cmderr";
        public const string WELCOME = "welcome";
        public const string BROADCAST = "say";
        public const string IP_ADDRESS = "ipaddr";
        public const string USER_NOT_FOUND = "usernf";
        public const string NAME_IN_USE = "nameinuse";
        public const string CHANNEL_INSUFFICIENT_HIERARCHY = "ipchan";
        public const string CHANNEL_INVALID_PASSWORD = "ipwchan";
        public const string CHANNEL_NOT_FOUND = "nochan";
        public const string CHANNEL_ALREADY_EXISTS = "nischan";
        public const string CHANNEL_NAME_INVALID = "inchan";
        public const string CHANNEL_CREATED = "crchan";
        public const string CHANNEL_DELETE_FAILED = "ndchan";
        public const string CHANNEL_DELETED = "delchan";
        public const string CHANNEL_PASSWORD_CHANGED = "cpwdchan";
        public const string CHANNEL_HIERARCHY_CHANGED = "cprivchan";
        public const string USERS_LISTING_ERROR = "whoerr";
        public const string USERS_LISTING_CHANNEL = "whochan";
        public const string USERS_LISTING_SERVER = "who";
        public const string INSUFFICIENT_HIERARCHY = "rankerr";
        public const string MESSAGE_DELETE_ERROR = "delerr";
        public const string KICK_NOT_ALLOWED = "kickna";
        public const string USER_NOT_BANNED = "notban";
        public const string USER_UNBANNED = "unban";
        public const string FLOOD_WARN = "flwarn";
    }
}