Update central/src/index.js

central/src/index.js

@@ -75,14 +75,24 @@ const adminAuth = (req, res, next) => {
 const translate = require('@vitalets/google-translate-api');
 
 // Metrics collection
+let prevCpu = process.cpuUsage();
+let prevTime = process.hrtime.bigint();
+
 setInterval(() => {
-  const cpuUsage = process.cpuUsage();
+  const cpuUsage = process.cpuUsage(prevCpu);
+  const currentTime = process.hrtime.bigint();
+  const elapsedNs = Number(currentTime - prevTime);
+  const elapsedUs = elapsedNs / 1000;
+  
+  const cpuPercent = Math.min(100, ((cpuUsage.user + cpuUsage.system) / elapsedUs) * 100);
+  
   const memUsage = process.memoryUsage();
-  const totalMem = os.totalmem();
-  const freeMem = os.freemem();
   
-  metrics.cpuHistory.push({ timestamp: Date.now(), cpu: cpuUsage.user + cpuUsage.system });
-  metrics.ramHistory.push({ timestamp: Date.now(), used: totalMem - freeMem, total: totalMem });
+  metrics.cpuHistory.push({ timestamp: Date.now(), cpu: Math.round(cpuPercent * 10) / 10 });
+  metrics.ramHistory.push({ timestamp: Date.now(), used: memUsage.heapUsed, total: memUsage.heapTotal });
+  
+  prevCpu = process.cpuUsage();
+  prevTime = currentTime;
   
   // Keep only last metricsWindowSeconds
   const cutoff = Date.now() - settings.metricsWindowSeconds * 1000;
@@ -262,8 +272,8 @@ function dispatchToWorker(worker, job) {
   });
 }
 
-// Admin dashboard routes
-app.get('/admin', adminAuth, (req, res) => {
+// Admin dashboard page (auth handled client-side via modal)
+app.get('/admin', (req, res) => {
   res.sendFile(path.join(__dirname, '../../public/admin.html'));
 });