using System;
using System.Collections.Generic;
using System.Text;

namespace SharpChat.Packet {
    public class AuthSuccessPacket : ServerPacket {
        public ChatUser User { get; private set; }
        public ChatChannel Channel { get; private set; }
        public ChatUserSession Session { get; private set; }
        public int MaxMessageLength { get; private set; }

        public AuthSuccessPacket(
            ChatUser user,
            ChatChannel channel,
            ChatUserSession sess,
            int maxMsgLength
        ) {
            User = user ?? throw new ArgumentNullException(nameof(user));
            Channel = channel ?? throw new ArgumentNullException(nameof(channel));
            Session = sess ?? throw new ArgumentNullException(nameof(channel));
            MaxMessageLength = maxMsgLength;
        }

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

            sb.Append('1');
            sb.Append("\ty\t");
            sb.Append(User.Pack());
            sb.Append('\t');
            sb.Append(Channel.Name);
            sb.Append('\t');
            sb.Append(MaxMessageLength);

            return new[] { sb.ToString() };
        }
    }
}