Allow to configure elapsed via MQTT (#1206)

* Allow to configure elapsed via MQTT

* Update bridgeConfig.js

lib/extension/bridgeConfig.js

@@ -15,6 +15,7 @@ class BridgeConfig {
         // Bind functions
         this.permitJoin = this.permitJoin.bind(this);
         this.lastSeen = this.lastSeen.bind(this);
+        this.elapsed = this.elapsed.bind(this);
         this.reset = this.reset.bind(this);
         this.logLevel = this.logLevel.bind(this);
         this.devices = this.devices.bind(this);
@@ -27,6 +28,7 @@ class BridgeConfig {
         this.supportedOptions = {
             'permit_join': this.permitJoin,
             'last_seen': this.lastSeen,
+            'elapsed': this.elapsed,
             'reset': this.reset,
             'log_level': this.logLevel,
             'devices': this.devices,
@@ -88,6 +90,19 @@ class BridgeConfig {
         logger.info(`Set last_seen to ${message}`);
     }
 
+    elapsed(topic, message) {
+        const allowed = ['true', 'false'];
+        message = message.toString();
+
+        if (!allowed.includes(message)) {
+            logger.error(`${message} is not an allowed value, possible: ${allowed}`);
+            return;
+        }
+
+        settings.set(['advanced', 'elapsed'], message);
+        logger.info(`Set elapsed to ${message}`);
+    }
+
     logLevel(topic, message) {
         const level = message.toString().toLowerCase();
         if (allowedLogLevels.includes(level)) {