V 0.2.0 Brtenndauer als Environment

Co-authored-by: Copilot <copilot@github.com>

routes/switch.js

@@ -2,11 +2,10 @@ var express = require('express');
 var router = express.Router();
 var mqtt = require('mqtt');
 var moment = require('moment');
-var fs = require('fs/promises');
 var crypto = require('crypto');
 
 var DEFAULT_BRENNDAUER = 300;
-var brenndauer = DEFAULT_BRENNDAUER;
+var brenndauer = Number(process.env.BRENNDAUER) || DEFAULT_BRENNDAUER;
 
 var MQTTHOST = process.env.MQTTHOST || 'localhost';
 var MQTTPORT = process.env.MQTTPORT || 1883;
@@ -85,19 +84,6 @@ function doPublish(payload) {
     }
 }
 
-// Read optional runtime config.
-(async function loadConfig() {
-    try {
-        var json = await fs.readFile('config/config.json', 'utf8');
-        var cfg = JSON.parse(json);
-        if (cfg.brenndauer !== undefined) {
-            brenndauer = Number(cfg.brenndauer) || DEFAULT_BRENNDAUER;
-        }
-    } catch (err) {
-        state.lastError = 'config load failed: ' + err.message;
-    }
-})();
-
 // Query initial state once at startup.
 doPublish('');