/*
Простой post запрос
*/
public async Task<string> SendMessageToServer(Message message)
{
WebRequest req = WebRequest.Create("http://localhost:45534/message/post");
req.Method = "POST";
req.Timeout = 100000;
req.ContentType = "application/json";
byte[] sentData = Encoding.GetEncoding(1251).GetBytes(JsonConvert.SerializeObject(message));
try
{
Stream sendStream = await req.GetRequestStreamAsync();
await sendStream.WriteAsync(sentData, 0, sentData.Length);
sendStream.Close();
WebResponse res =await req.GetResponseAsync();
return "ok";
}
catch (Exception)
{
return "failed";
}
}
public async Task SendEcho(string robotNumber)
{
// создали эхо - сообщение
Message message = new Message()
{
Commands = new List<string>() { "<ECHO>" },
From = "0",
To = robotNumber,
Text = null
};
// оно дошло?
bool result = true;
/*
нужно сказать серверу, что робот онлайн только 1 раз, поэтому нужен флаг
*/
bool serverKnows = false;
while (result)
{
Thread.Sleep(1000);
result = await SendMessageToRobotTask(JsonConvert.SerializeObject(message));
if (result)
{
Console.WriteLine("Robot is online now");
if (!serverKnows)
{
Message notificationOn = new Message()
{
Commands = null,
From = robotNumber,
Text = "I am online!",
To = "0"
};
await _serverConnector.SendMessageToServer(notificationOn);
serverKnows = true;
}
}
}
Console.WriteLine("Robot is offline now");
Message notificationOff = new Message()
{
Commands = null,
From = robotNumber,
Text = "I am offline!",
To = "0"
};
var robot = data.Robots.First(x => x.Number == robotNumber);
robot.isOnline = false;
await data.UpdateAsync(robot);
await _serverConnector.SendMessageToServer(notificationOff);
}
