setup code set only if not paired

Author: rednblkx

src/config.h

@@ -44,7 +44,7 @@ enum customLockActions
 
 //Miscellaneous
 #define HOMEKEY_COLOR TAN
-#define SETUP_CODE "46637726"  //code used for homekit setup
+#define SETUP_CODE "46637726"  // HomeKit Setup Code (only for reference, has to be changed during WiFi Configuration or from WebUI)
 #define OTA_PWD "homespan-ota" //custom password for ota
 #define DEVICE_NAME "HK" //Device name
 #define HOMEKEY_ALWAYS_UNLOCK 0 // Flag indicating if a successful Homekey authentication should always set and publish the unlock state

src/main.cpp

@@ -900,8 +900,10 @@ void setupWeb() {
       }
       else if (!strcmp(p->name().c_str(), "hk-setupcode")) {
         if (strcmp(espConfig::miscConfig.setupCode.c_str(), p->value().c_str()) && p->value().length() == 8) {
-          homeSpan.setPairingCode(p->value().c_str());
-          espConfig::miscConfig.setupCode = p->value().c_str();
+          if (homeSpan.controllerListBegin() == homeSpan.controllerListEnd()) {
+            homeSpan.setPairingCode(p->value().c_str());
+            espConfig::miscConfig.setupCode = p->value().c_str();
+          }
         }
       }
       else if (!strcmp(p->name().c_str(), "control-pin")) {