doppelt senden unterbinden. CSV

server/server.js

@@ -149,6 +149,7 @@ app.post('/api/send', (req, res) => {
       console.log(`G0 ${arrayMsg[1].toUpperCase()} F1000 gesendet`);
     }
     */
+    return res.json({ ok: true, sent: msg.payload});
   }
   
   try {
@@ -186,6 +187,35 @@ app.get('/api/events', (req, res) => {
   });
 });
 
+// Neuester Snapshot-Endpunkt
+app.get('/api/latest-snapshot', (req, res) => {
+  const snapshotsDir = path.join(path.resolve('public'), 'snapshots');
+  fs.readdir(snapshotsDir, (err, files) => {
+    if (err) {
+      return res.status(500).json({ error: 'Fehler beim Lesen des Snapshots-Verzeichnisses' });
+    }
+    const csvFiles = files.filter(file => file.endsWith('.csv')).map(file => ({
+      name: file,
+      path: path.join(snapshotsDir, file),
+      mtime: fs.statSync(path.join(snapshotsDir, file)).mtime
+    })).sort((a, b) => b.mtime - a.mtime);
+    if (csvFiles.length === 0) {
+      return res.status(404).json({ error: 'Keine CSV-Dateien gefunden' });
+    }
+    const latestFile = csvFiles[0];
+    fs.readFile(latestFile.path, 'utf8', (err, data) => {
+      if (err) {
+        return res.status(500).json({ error: 'Fehler beim Lesen der Datei' });
+      }
+      res.json({
+        filename: latestFile.name,
+        mtime: latestFile.mtime.toISOString(),
+        content: data
+      });
+    });
+  });
+});
+
 // Statisches Frontend
 app.use('/', express.static(path.resolve('public')));