public void ScheduleMessageTest()
{
CreateMessageTest();
var result = client.BroadcastMessageAsync(message, NotificationTypes.Regular, DateTime.UtcNow.AddMinutes(5)).Result;
broadcast = result;
Trace.WriteLine($"Broadcast Id: {result.Id}");
}
public async Task <bool> CancelScheduledBroadcast(BroadcastResult broadcast)
{
string apiUri = $"https://graph.facebook.com/v{ApiVersion}/{broadcast.Id}?access_token={PageToken}";
CancelContainer container = new CancelContainer();
var result = await PostAsync <CancelResult>(container, apiUri);
return(result.Result);
}
/// <summary>
/// This method will call the broadcast method, and then decide whether we have got any valid repsonses. It will keep broadcasting until we find an arduino.
/// </summary>
private async void ScanForDevices()
{
// We can jump back to here when we need to rescan for arduinos. This stop us having to do recursion and then filling up lots of memory
top_of_function:
// We have started sending
statusLabel.Text = "Sending...";
// Create the socket. We will use this to bradcast the discovery packet
Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp)
{
// If this isn't set then we get an access denied exception
EnableBroadcast = true
};
// Broadcast the packet and get the result
var tuple = await Broadcast(socket);
BroadcastResult status = tuple.Item1;
UdpReceiveResult response = tuple.Item2;
// Holds the amount of times we have pinged the network
byte pingCount = 1;
pingCountLabel.Text = "1 ping";
// If we got a network unreachable then the user isn't connected
if (status == BroadcastResult.NetworkUnreachable)
{
CreateRetryButton();
statusLabel.Text = "Couldn't find any devices because the network is unreachable. Please connect to a WiFi network or hotspot and try again. Note: using mobile data will not work.";
// We dont need to rescan so we can exit the function
return;
}
// If it timed out we need to ping the network again.
while (status == BroadcastResult.TimedOut)
{
tuple = await Broadcast(socket);
status = tuple.Item1;
response = tuple.Item2;
pingCount++;
pingCountLabel.Text = $"{pingCount} pings";
// If we have pinged 3 times then we really can't find the arduino so we gotta stop
if (pingCount == 3)
{
statusLabel.Text = "No devices found. If the gas sensor's green light is on, then please connect to your 2.4GHz network and try again";
CreateRetryButton();
// We dont need to rescan so we can exit the function
return;
}
}
bool needPassword = false;
if (Encoding.ASCII.GetString(response.Buffer).EndsWith("np"))
{
nameEntry.IsVisible = true;
passwordEntry.IsVisible = true;
goButton.IsVisible = true;
needPassword = true;
}
// Otherwise, we have received the data. Notify the app.
statusLabel.Text = "Connected to the arduino";
// Start the tcp loop as a task. This will run it in the background withput interupting/blocking the main UI thread
await Task.Run(() => {
// When the function exits it will be because of a connection failure.
TCPLoop(response.RemoteEndPoint.Address.ToString(), needPassword);
// Give the arduino a bit of time to sort its problems out
Task.Delay(2000);
});
Console.WriteLine("Down here");
// We want the function to rescan for any arduinos
goto top_of_function;
}
