ensure environment variables are present

Author: recursivefunk

src/index.js

@@ -1,4 +1,6 @@
 const process = require('node:process');
+const { isIP } = require('net');
+const env = require('good-env');
 const Sonos = require('./lib/sonos');
 const Sensor = require('./lib/sensor');
 const { hue } = require('./lib/config');
@@ -10,6 +12,14 @@ const {
   printNowPlaying,
   randomTrack
 } = require('./lib/utils');
+const ipOk = str => isIP(str) === 4 || isIP(str) === 6;
+
+// Ensure all the required environemnt variables are present
+env.assert(
+  { 'HUE_BRIDGE_IP': { type: 'string', ok: ipOk }},
+  'HUE_USERNAME',
+  'HUE_SENSOR_ID',
+);
 
 (async function () {
   const trackChoices = await chooseVibe();

src/lib/utils.js

@@ -79,14 +79,14 @@ function randomTrack (items) {
   return items[Math.floor(Math.random() * items.length)];
 }
 
-const camelize = (str) => {
+function camelize (str) {
   return str.replace(/(?:^\w|[A-Z]|\b\w)/g, (word, index) => {
     return index === 0 ? word.toLowerCase() : word.toUpperCase();
   })
     .replace(/\s+/g, '')
     .replace(/'/g, '')
     .replace(/’/g, '');
-};
+}
 
 module.exports = {
   buildPlayQueue,