using System;
using System.IO;
using System.Threading.Tasks;
using Windows.Networking;
using Windows.Networking.Sockets;

namespace Plane.Communication
{
    /// <summary>
    /// 提供 TCP 通信的能力。
    /// </summary>
    public class TcpConnection : StreamSocketConnection
    {
        private HostName _remoteHostName;
        private string _remoteServiceName;

        public TcpConnection(string remoteHostName, int remotePort = 5250)
        {
            _remoteHostName = new HostName(remoteHostName);
            _remoteServiceName = remotePort.ToString();
        }

        public override async Task OpenAsync()
        {
            if (IsOpen)
            {
                return;
            }
            _socket = new StreamSocket();
            await _socket.ConnectAsync(_remoteHostName, _remoteServiceName);
            _inputStream = _socket.InputStream;
            _outputStream = _socket.OutputStream.AsStreamForWrite();
            IsOpen = true;
        }
    }
}