private void MqttClient_MessageReceivedEvent(MQTTnet.MqttApplicationMessageReceivedEventArgs eventArgs)
{
var messageAsJson = Encoding.UTF8.GetString(eventArgs.ApplicationMessage.Payload);
var topic = eventArgs.ApplicationMessage.Topic.Split('/').Last();
switch (topic)
{
case "start":
StartTimer();
break;
case "update":
_model = JsonConvert.DeserializeObject <ScoreBoardModel>(messageAsJson);
Dispatcher.Invoke(() => DataContext = _model);
break;
case "stop":
if (!string.IsNullOrWhiteSpace(messageAsJson) && messageAsJson != "empty")
{
var offset = JsonConvert.DeserializeObject <TimeSpan>(messageAsJson);
StopTimer(offset);
}
else
{
StopTimer();
}
break;
//case "pause":
// break;
}
}
public ScoreBoardWindow()
{
InitializeComponent();
_timer = new Timer();
_timer.Interval = 1000;
_timer.Elapsed += Timer_Elapsed;
_model = new ScoreBoardModel();
this.DataContext = _model;
_mqttServer = new Mqtt.Server(_options);
_mqttClient = new Mqtt.Client(_options);
_mqttClient.MessageReceivedEvent += MqttClient_MessageReceivedEvent;
_mqttClient.Subscribe($"display/{_options.ClientId}/#"); // subscribe to all updates meant for me!
Task.Run(async() => await _mqttClient.SendMessageAsync($"display/{_options.ClientId}/status", "online")); // tell the world I'm here!
}