private async void OnTimer(object state)
{
var geolocator = (Geolocator)state;
string message;
if (geolocator == null)
{
message = "No geolocator";
DisplayToast(message);
}
else
{
Geoposition geoposition = await geolocator.GetGeopositionAsync();
if (geoposition == null)
{
message = "Cannot get current location";
DisplayToast(message);
}
else
{
Geocoordinate gc = geoposition.Coordinate;
BasicGeoposition basicPosition = gc.Point.Position;
//message = "{\"_type": "location", "lat": "' + basicPosition.Latitude + '", "lon": "' + basicPosition.Longitude + '", "tst": "' + timestamp + '"';
OwntracksLocationMessage locmsg = new OwntracksLocationMessage(basicPosition.Latitude, basicPosition.Longitude, gc.Accuracy);
message = JsonConvert.SerializeObject(locmsg);
//no toast, just send it to the MQTT broker.
//this.client.Publish("home-assistant/jeroen", System.Text.Encoding.UTF8.GetBytes("{'message': 'barf'}"));
try
{
MqttBroker mqttbroker = new MqttBroker(this.broker, this.port, this.secure, this.sslprotocol, this.protocolversion, this.username, this.password);
mqttbroker.Connect();
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
mqttbroker.Publish(tb_topic.Text, System.Text.Encoding.UTF8.GetBytes(message));
});
counter++;
NotifyUser("Total location messages sent: " + counter.ToString(), NotifyType.StatusMessage);
}
catch (Exception ex)
{
NotifyUser(ex.Message, NotifyType.ErrorMessage);
}
}
}
}
private void bt_connect_Click(object sender, RoutedEventArgs e)
{
var broker = tb_broker.Text.Trim();
if (broker.Length == 0)
{
//no broker given
NotifyUser("Enter a hostname for the MQTT broker.", NotifyType.ErrorMessage);
}
else
{
int port = -1;
if (!(int.TryParse(tb_port.Text.Trim(), out port)))
{
//invalid port
NotifyUser("Enter a valid port number", NotifyType.ErrorMessage);
}
else
{
if (cb_protocol_version.SelectedItem == null)
{
//no protocol version selected
NotifyUser("Select a protocol", NotifyType.ErrorMessage);
}
else
{
if (cb_ssl_protocol_version.SelectedItem == null)
{
//no ssl protocol selected
NotifyUser("Select a protocol version", NotifyType.ErrorMessage);
}
else
{
uint interval = 15;
if (!uint.TryParse(tb_interval.Text.Trim(), out interval) || interval <= 0)
{
//invalid interval
NotifyUser("Enter a valid interval", NotifyType.ErrorMessage);
}
else
{
if (tb_topic.Text.Trim().Length == 0)
{
//invalid topic
NotifyUser("Enter a valid topic", NotifyType.ErrorMessage);
}
else
{
//parse the input values
var sslprotocol = (MqttSslProtocols)Enum.Parse(typeof(MqttSslProtocols), cb_ssl_protocol_version.SelectedItem.ToString());
var protocolversion = (MqttProtocolVersion)Enum.Parse(typeof(MqttProtocolVersion), cb_protocol_version.SelectedItem.ToString());
this._interval = interval;
//connect
try
{
//store all settings
StoreAllSettings();
this.broker = tb_broker.Text;
this.port = port;
this.secure = cb_secure.IsChecked.Value;
this.sslprotocol = sslprotocol;
this.protocolversion = protocolversion;
this.username = tb_username.Text;
this.password = tb_password.Password;
MqttBroker mqttbroker = new MqttBroker(this.broker, this.port, this.secure, this.sslprotocol, this.protocolversion, this.username, this.password);
mqttbroker.Connect();
//register extended execution.
BeginExtendedExecution(_interval);
}
catch (Exception ex)
{
NotifyUser(ex.Message + ": " + ex.InnerException, NotifyType.ErrorMessage);
}
}
}
}
}
}
}
}