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

namespace SharpChat.Packet {
    public class UserConnectPacket(DateTimeOffset joined, ChatUser user) : ServerPacket {
        public ChatUser User { get; private set; } = user ?? throw new ArgumentNullException(nameof(user));

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

            sb.Append('1');
            sb.Append('\t');
            sb.Append(joined.ToUnixTimeSeconds());
            sb.Append('\t');
            sb.Append(User.Pack());
            sb.Append('\t');
            sb.Append(SequenceId);

            yield return sb.ToString();
        }
    }
}