Added availability topic

include/config.h

@@ -21,6 +21,7 @@ public:
         OutTopic,
         InTopic,
         ConfigTopic,
+        AvailabilityTopic,
     };
 
     static Config& Instance();

src/config.cpp

@@ -67,6 +67,8 @@ String Config::getMqttTopic(MqttTopic topic)
     case (MqttTopic::ConfigTopic):
         return String("light/" + String(data.hostname) + "/relay/0/config");
         break;
+    case (MqttTopic::AvailabilityTopic):
+        return String("light/" + String(data.hostname) + "/status");
     }
     return {};
 }

src/main.cpp

@@ -112,9 +112,14 @@ void onPressed()
 void mqttPublishState()
 {
     if (mqttClient.connected())
+    {
         mqttClient.publish(
             config.getMqttTopic(Config::MqttTopic::OutTopic).c_str(),
             myLed.get().c_str());
+        mqttClient.publish(
+            config.getMqttTopic(Config::MqttTopic::AvailabilityTopic).c_str(),
+            "online");
+    }
 }
 
 void mqttReconnect()