feat: auto-discovery

2025-08-25 12:05:51 +02:00
parent f72e4ba220
commit 5977a37d6c
8 changed files with 552 additions and 3 deletions
--- a/test/demo-frontend.js
+++ b/test/demo-frontend.js
@@ -0,0 +1,102 @@
+#!/usr/bin/env node
+
+/**
+ * Demo script for Frontend Discovery Integration
+ * Shows how the frontend displays primary node information
+ */
+
+const http = require('http');
+
+const BASE_URL = 'http://localhost:3001';
+
+function makeRequest(path, method = 'GET') {
+  return new Promise((resolve, reject) => {
+    const options = {
+      hostname: 'localhost',
+      port: 3001,
+      path: path,
+      method: method,
+      headers: {
+        'Content-Type': 'application/json'
+      }
+    };
+
+    const req = http.request(options, (res) => {
+      let data = '';
+      
+      res.on('data', (chunk) => {
+        data += chunk;
+      });
+      
+      res.on('end', () => {
+        try {
+          const jsonData = JSON.parse(data);
+          resolve({ status: res.statusCode, data: jsonData });
+        } catch (error) {
+          resolve({ status: res.statusCode, data: data });
+        }
+      });
+    });
+
+    req.on('error', (error) => {
+      reject(error);
+    });
+
+    req.end();
+  });
+}
+
+async function showFrontendIntegration() {
+  console.log('🚀 Frontend Discovery Integration Demo');
+  console.log('=====================================');
+  console.log('This demo shows how the frontend displays primary node information.');
+  console.log('Open http://localhost:3001 in your browser to see the UI.');
+  console.log('');
+  
+  try {
+    // Check if backend is running
+    const healthResponse = await makeRequest('/api/health');
+    console.log('✅ Backend is running');
+    
+    // Get discovery information
+    const discoveryResponse = await makeRequest('/api/discovery/nodes');
+    console.log('\n📡 Discovery Status:');
+    console.log(`  Primary Node: ${discoveryResponse.data.primaryNode || 'None'}`);
+    console.log(`  Total Nodes: ${discoveryResponse.data.totalNodes}`);
+    console.log(`  Client Initialized: ${discoveryResponse.data.clientInitialized}`);
+    
+    if (discoveryResponse.data.nodes.length > 0) {
+      console.log('\n🌐 Discovered Nodes:');
+      discoveryResponse.data.nodes.forEach((node, index) => {
+        console.log(`  ${index + 1}. ${node.ip}:${node.port} (${node.isPrimary ? 'PRIMARY' : 'secondary'})`);
+        console.log(`     Last Seen: ${node.lastSeen}`);
+      });
+    }
+    
+    console.log('\n🎯 Frontend Display:');
+    console.log('  The frontend will show:');
+    if (discoveryResponse.data.primaryNode) {
+      const status = discoveryResponse.data.clientInitialized ? '✅' : '⚠️';
+      const nodeCount = discoveryResponse.data.totalNodes > 1 ? ` (${discoveryResponse.data.totalNodes} nodes)` : '';
+      console.log(`    ${status} ${discoveryResponse.data.primaryNode}${nodeCount}`);
+    } else if (discoveryResponse.data.totalNodes > 0) {
+      const firstNode = discoveryResponse.data.nodes[0];
+      console.log(`    ⚠️ ${firstNode.ip} (No Primary)`);
+    } else {
+      console.log('    🔍 No Nodes Found');
+    }
+    
+    console.log('\n💡 To test the frontend:');
+    console.log('  1. Open http://localhost:3001 in your browser');
+    console.log('  2. Look at the cluster header for primary node info');
+    console.log('  3. Send discovery messages: npm run test-discovery broadcast');
+    console.log('  4. Watch the primary node display update in real-time');
+    
+  } catch (error) {
+    console.error('❌ Error:', error.message);
+    console.log('\n💡 Make sure the backend is running: npm start');
+  }
+}
+
+// Run the demo
+showFrontendIntegration().catch(console.error);