[BT] Regular BLE system parameter pub (#1422)

Publish BT config parameter at start so as to update the switch statuses in the controller
Also publish regularly in case of controller restart
Also move btqsum, btqsnd and btqavg to BTtoMQTT topic instead of SYStoMQTT as they are more relevant here

main/ZgatewayBT.ino

@@ -111,6 +111,38 @@ void BTConfig_update(JsonObject& data, const char* key, T& var) {
   }
 }
 
+void stateBTMeasures(bool start) {
+  StaticJsonDocument<JSON_MSG_BUFFER> jsonBuffer;
+  JsonObject jo = jsonBuffer.to<JsonObject>();
+  jo["bleconnect"] = BTConfig.bleConnect;
+  jo["interval"] = BTConfig.BLEinterval;
+  jo["activescan"] = BTConfig.activeScan;
+  jo["scanbcnct"] = BTConfig.BLEscanBeforeConnect;
+  jo["onlysensors"] = BTConfig.pubOnlySensors;
+  jo["hasspresence"] = BTConfig.presenceEnable;
+  jo["presenceTopic"] = BTConfig.presenceTopic;
+  jo["presenceUseBeaconUuid"] = BTConfig.presenceUseBeaconUuid;
+  jo["minrssi"] = -abs(BTConfig.minRssi); // Always export as negative value
+  jo["extDecoderEnable"] = BTConfig.extDecoderEnable;
+  jo["extDecoderTopic"] = BTConfig.extDecoderTopic;
+  jo["filterConnectable"] = BTConfig.filterConnectable;
+  jo["pubadvdata"] = BTConfig.pubAdvData;
+  jo["pubBeaconUuidForTopic"] = BTConfig.pubBeaconUuidForTopic;
+  jo["ignoreWBlist"] = BTConfig.ignoreWBlist;
+  jo["btqblck"] = btQueueBlocked;
+  jo["btqsum"] = btQueueLengthSum;
+  jo["btqsnd"] = btQueueLengthCount;
+  jo["btqavg"] = (btQueueLengthCount > 0 ? btQueueLengthSum / (float)btQueueLengthCount : 0);
+
+  if (start) {
+    Log.notice(F("BT sys: "));
+    serializeJsonPretty(jsonBuffer, Serial);
+    Serial.println();
+    return; // Do not try to erase/write/send config at startup
+  }
+  pub(subjectBTtoMQTT, jo);
+}
+
 void BTConfig_fromJson(JsonObject& BTdata, bool startup = false) {
   // Attempts to connect to eligible devices or not
   BTConfig_update(BTdata, "bleconnect", BTConfig.bleConnect);
@@ -144,6 +176,18 @@ void BTConfig_fromJson(JsonObject& BTdata, bool startup = false) {
   // Disable Whitelist & Blacklist
   BTConfig_update(BTdata, "ignoreWBlist", (BTConfig.ignoreWBlist));
 
+  stateBTMeasures(startup);
+
+  if (BTdata.containsKey("erase") && BTdata["erase"].as<bool>()) {
+    // Erase config from NVS (non-volatile storage)
+    preferences.begin(Gateway_Short_Name, false);
+    preferences.remove("BTConfig");
+    preferences.end();
+    Log.notice(F("BT config erased" CR));
+    return; // Erase prevails on save, so skipping save
+  }
+
+  if (BTdata.containsKey("save") && BTdata["save"].as<bool>()) {
     StaticJsonDocument<JSON_MSG_BUFFER> jsonBuffer;
     JsonObject jo = jsonBuffer.to<JsonObject>();
     jo["bleconnect"] = BTConfig.bleConnect;
@@ -161,25 +205,6 @@ void BTConfig_fromJson(JsonObject& BTdata, bool startup = false) {
     jo["pubadvdata"] = BTConfig.pubAdvData;
     jo["pubBeaconUuidForTopic"] = BTConfig.pubBeaconUuidForTopic;
     jo["ignoreWBlist"] = BTConfig.ignoreWBlist;
-
-  if (startup) {
-    Log.notice(F("BT config: "));
-    serializeJsonPretty(jsonBuffer, Serial);
-    Serial.println();
-    return; // Do not try to erase/write/send config at startup
-  }
-  pub(subjectBTtoMQTT, jo);
-
-  if (BTdata.containsKey("erase") && BTdata["erase"].as<bool>()) {
-    // Erase config from NVS (non-volatile storage)
-    preferences.begin(Gateway_Short_Name, false);
-    preferences.remove("BTConfig");
-    preferences.end();
-    Log.notice(F("BT config erased" CR));
-    return; // Erase prevails on save, so skipping save
-  }
-
-  if (BTdata.containsKey("save") && BTdata["save"].as<bool>()) {
     // Save config into NVS (non-volatile storage)
     String conf = "";
     serializeJson(jsonBuffer, conf);

main/main.ino

@@ -1492,6 +1492,9 @@ void loop() {
       if (now > (timer_sys_measures + (TimeBetweenReadingSYS * 1000)) || !timer_sys_measures) {
         timer_sys_measures = millis();
         stateMeasures();
+#  ifdef ZgatewayBT
+        stateBTMeasures(false);
+#  endif
       }
 #endif
 #ifdef ZsensorBME280
@@ -1562,12 +1565,7 @@ void loop() {
       if (disc)
         launchBTDiscovery(publishDiscovery);
 #  endif
-#  ifndef ESP32
-      if (BTtoMQTT())
-        Log.trace(F("BTtoMQTT OK" CR));
-#  else
       emptyBTQueue();
-#  endif
 #endif
 #ifdef ZgatewaySRFB
       SRFBtoMQTT();
@@ -1705,10 +1703,6 @@ void stateMeasures() {
 #  ifdef ZgatewayBT
 #    ifdef ESP32
   SYSdata["lowpowermode"] = (int)lowpowermode;
-  SYSdata["btqblck"] = btQueueBlocked;
-  SYSdata["btqsum"] = btQueueLengthSum;
-  SYSdata["btqsnd"] = btQueueLengthCount;
-  SYSdata["btqavg"] = (btQueueLengthCount > 0 ? btQueueLengthSum / (float)btQueueLengthCount : 0);
 #    endif
   SYSdata["interval"] = BTConfig.BLEinterval;
   SYSdata["scanbcnct"] = BTConfig.BLEscanBeforeConnect;