Fix: Restore website functionality - all pages and APIs working

backend/scripts/db-health.js

@@ -0,0 +1,77 @@
+#!/usr/bin/env node
+/**
+ * Database Health Check Script
+ * Tests database connectivity and performance
+ * Usage: node scripts/db-health.js
+ */
+
+const db = require("../config/database");
+const logger = require("../config/logger");
+
+async function runHealthCheck() {
+  console.log("🔍 Running database health check...\n");
+
+  try {
+    // Run health check with timeout
+    const result = await db.healthCheck(5000);
+
+    if (result.healthy) {
+      console.log("✅ DATABASE HEALTHY");
+      console.log("━━━━━━━━━━━━━━━━━━━━━━");
+      console.log(`Database: ${result.database}`);
+      console.log(`Timestamp: ${result.timestamp}`);
+      console.log(`\nConnection Pool:`);
+      console.log(`  Total Connections: ${result.pool.total}`);
+      console.log(`  Idle Connections:  ${result.pool.idle}`);
+      console.log(`  Waiting Requests:  ${result.pool.waiting}`);
+      console.log(`  Pool Connected:    ${result.pool.connected ? "✓" : "✗"}`);
+      console.log(`\nQuery Cache:`);
+      console.log(
+        `  Cached Queries: ${result.cache.size}/${result.cache.maxSize}`
+      );
+      console.log(
+        `  Usage: ${((result.cache.size / result.cache.maxSize) * 100).toFixed(
+          1
+        )}%`
+      );
+
+      // Get additional pool status
+      const poolStatus = db.getPoolStatus();
+      console.log(`\n📊 Pool Status: OPERATIONAL`);
+
+      process.exitCode = 0;
+    } else {
+      console.log("❌ DATABASE UNHEALTHY");
+      console.log("━━━━━━━━━━━━━━━━━━━━━━");
+      console.log(`Error: ${result.error}`);
+      if (result.pool) {
+        console.log(`\nPool State:`);
+        console.log(
+          `  Total: ${result.pool.total}, Idle: ${result.pool.idle}, Waiting: ${result.pool.waiting}`
+        );
+      }
+      process.exitCode = 1;
+    }
+  } catch (error) {
+    console.log("💥 HEALTH CHECK FAILED");
+    console.log("━━━━━━━━━━━━━━━━━━━━━━");
+    console.log(`Error: ${error.message}`);
+    console.log(`\nThis usually indicates:`);
+    console.log(`  1. Database connection timeout`);
+    console.log(`  2. PostgreSQL service not running`);
+    console.log(`  3. Network/firewall issues`);
+    console.log(`  4. Database credentials incorrect`);
+    process.exitCode = 1;
+  } finally {
+    // Gracefully close the pool
+    console.log("\n🔌 Closing database connections...");
+    await db.closePool();
+    console.log("✓ Database pool closed\n");
+  }
+}
+
+// Run the check
+runHealthCheck().catch((err) => {
+  console.error("Fatal error:", err);
+  process.exit(1);
+});