using System.Text;

namespace SharpChat.Packet {
    public class ChannelUpdatePacket(string previousName, ChatChannel channel) : IServerPacket {
        public string PreviousName { get; private set; } = previousName ?? throw new ArgumentNullException(nameof(previousName));
        public ChatChannel Channel { get; private set; } = channel ?? throw new ArgumentNullException(nameof(channel));

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

            sb.Append('4');
            sb.Append('\t');
            sb.Append('1');
            sb.Append('\t');
            sb.Append(PreviousName);
            sb.Append('\t');
            sb.Append(Channel.Pack());

            yield return sb.ToString();
        }
    }
}