using System.Net;
using System.Net.Sockets;

namespace LiteNetLib.Utils
{
    internal sealed class NtpRequest
    {
        private const int ResendTimer = 1000;
        private const int KillTimer = 10000;
        public const int DefaultPort = 123;
        private readonly IPEndPoint _ntpEndPoint;
        private int _resendTime = ResendTimer;
        private int _killTime = 0;

        public NtpRequest(IPEndPoint endPoint)
        {
            _ntpEndPoint = endPoint;
        }

        public bool NeedToKill => _killTime >= KillTimer;

        public bool Send(Socket socket, int time)
        {
            _resendTime += time;
            _killTime += time;
            if (_resendTime < ResendTimer)
            {
                return false;
            }
            var packet = new NtpPacket();
            try
            {
                int sendCount = socket.SendTo(packet.Bytes, 0, packet.Bytes.Length, SocketFlags.None, _ntpEndPoint);
                return sendCount == packet.Bytes.Length;
            }
            catch
            {
                return false;
            }
        }
    }
}