Merge pull request #111 from TheRealMoeder/raw_mqtt

Add support for raw power numbers via MQTT

Author: TheRealMoeder

src/parsers/MqttParser.cpp

@@ -3,8 +3,26 @@
 
 void mqtt_callback(char *topic, byte *payload, unsigned int length) {
   JsonDocument json;
-  deserializeJson(json, payload, length);
-  setJsonPathPower(json);
+  
+  // Try to parse as JSON first
+  DeserializationError error = deserializeJson(json, payload, length);
+  
+  if (error) {
+    // If JSON parsing fails, try to parse as a raw number
+    String payloadStr = String((char*)payload);
+    payloadStr.trim();
+    
+    // Check if payload is a valid number
+    if (payloadStr.length() > 0 && (isdigit(payloadStr[0]) || payloadStr[0] == '-' || payloadStr[0] == '.')) {
+      float rawValue = payloadStr.toFloat();
+      setPowerData(rawValue);
+    } else {
+      DEBUG_SERIAL.print("Error parsing MQTT payload");
+    }
+  } else {
+    // Successfully parsed as JSON
+    setJsonPathPower(json);
+  }
 }
 
 void mqtt_reconnect() {