ha-client.js: HA-API-Client als eigenes Modul ausgelagert

home-assistant-skill/ha-client.js

@@ -0,0 +1,48 @@
+// ---- Home Assistant API Client ----
+require('dotenv').config();
+
+const https = require('https');
+
+const HA_URL = process.env.HA_URL;     // z.B. "https://haos.vogt.de.com"
+const HA_TOKEN = process.env.HA_TOKEN; // Long-Lived Access Token aus HA
+
+/**
+ * Fragt den aktuellen Zustand einer Home-Assistant-Entity ab.
+ * @param {string} entityId - z.B. "sensor.wohnzimmer_temperatur"
+ * @returns {Promise<{state: string, attributes: object}>}
+ */
+function getHaState(entityId) {
+  return new Promise((resolve, reject) => {
+    const url = new URL(`${HA_URL}/api/states/${entityId}`);
+    const options = {
+      hostname: url.hostname,
+      path: url.pathname,
+      method: 'GET',
+      headers: {
+        Authorization: `Bearer ${HA_TOKEN}`,
+        'Content-Type': 'application/json',
+      },
+    };
+
+    const req = https.request(options, (res) => {
+      let data = '';
+      res.on('data', (chunk) => (data += chunk));
+      res.on('end', () => {
+        if (res.statusCode !== 200) {
+          reject(new Error(`HA API Fehler: ${res.statusCode} - ${data}`));
+          return;
+        }
+        try {
+          resolve(JSON.parse(data));
+        } catch (e) {
+          reject(e);
+        }
+      });
+    });
+
+    req.on('error', reject);
+    req.end();
+  });
+}
+
+module.exports = { getHaState };