/// <summary>
/// Sends command to SmartPlug expecting a response of a certain type
/// </summary>
/// <param name="command"></param>
public TPlugResponse Send <TPlugResponse>(IPlugCommand command) where TPlugResponse : IPlugResponse, new()
{
if (command == null)
{
throw new ArgumentNullException(nameof(command));
}
string json = command.GetJson();
TcpClient tcpClient = null;
try
{
tcpClient = new TcpClient(connectHost, connectPort);
if (tcpClient.Connected)
{
var ns = tcpClient.GetStream();
var jsonBytes = Encoding.UTF8.GetBytes(json);
var pseudoCrypted = smartPlugEncrypt(jsonBytes);
ns.Write(pseudoCrypted, 0, pseudoCrypted.Length);
Thread.Sleep(100); // give some time for device to respond
byte[] receiveBuffer = new byte[1024 * 2];
int read = ns.Read(receiveBuffer, 0, receiveBuffer.Length);
if (typeof(TPlugResponse) != typeof(NullResponse))
{
TPlugResponse resp = new TPlugResponse();
if (read > 4)
{
// read actual payload minus 4-byte header
byte[] actual = new byte[read - 4];
if (actual.Length > 0)
{
Array.Copy(receiveBuffer, 4, actual, 0, read - 4);
var pseudoDecrypted = smartPlugDecrypt(actual);
var response = Encoding.UTF8.GetString(pseudoDecrypted);
resp.Parse(response);
}
}
return(resp);
}
}
}
finally
{
if (tcpClient != null)
{
tcpClient.Close();
}
}
return(default(TPlugResponse));
}
/// <summary>
/// Sends command to SmartPlug, not expecting a response
/// </summary>
/// <param name="command"></param>
public void Send(IPlugCommand command)
{
Send <NullResponse>(command);
}
