fixed API and stopping delay

server/companion.js

@@ -0,0 +1,22 @@
+// Bitfocus Companion integration.
+// Keeps the `currentRadio` custom variable on the Companion instance
+// in sync with the currently playing station.
+//
+// Set COMPANION_URL in your .env to override the default host/port.
+// e.g. COMPANION_URL=http://10.99.0.110:8000
+
+const BASE = process.env.COMPANION_URL || 'http://10.99.0.110:8000';
+const VARIABLE_PATH = '/api/custom-variable/currentRadio/value';
+
+/**
+ * Push a new value to Companion's `currentRadio` custom variable.
+ * @param {number|null} stationId  Pass a numeric station id when playing;
+ *                                  pass null/undefined to clear (stop/pause).
+ */
+export function notifyCompanion(stationId) {
+    const value = stationId != null ? String(stationId) : '';
+    const url = `${BASE}${VARIABLE_PATH}?value=${encodeURIComponent(value)}`;
+    fetch(url, { method: 'POST' }).catch((err) => {
+        console.warn('[companion] notify failed:', err.message);
+    });
+}