app.ts.backup

import express from 'express';
import swaggerUi from 'swagger-ui-express';
import { configureSecurity } from './src/config/security';
import { loggingMiddleware, setupGlobalErrorHandling, logger } from './middleware/logger';
import { swaggerSpec } from './src/config/swagger';
import ConnectionPoolManager from './databases/ConnectionPoolManager';

const app = express();

// Initialize Connection Pool Manager
ConnectionPoolManager.startHealthMonitoring(60000); // Monitor every minute

// Basic middleware setup
app.use(...loggingMiddleware);
configureSecurity(app);
app.use(express.json({ limit: '10kb' }));

// API Documentation
app.use('/api-docs', swaggerUi.serve, swaggerUi.setup(swaggerSpec));

// Health Check
app.get('/health', (req, res) => {
  res.status(200).json({
    status: 'UP',
    timestamp: new Date().toISOString(),
    uptime: process.uptime()
  });
});

// Connection Pool Management endpoints
app.get('/api/connection-pool/stats', async (req, res) => {
  try {
    const stats = await ConnectionPoolManager.getAllPoolStats();
    res.json(stats);
  } catch (error) {
    res.status(500).json({ error: 'Failed to get connection pool stats' });
  }
});

app.get('/api/connection-pool/health', async (req, res) => {
  try {
    const healthChecks = await ConnectionPoolManager.getAllHealthChecks();
    res.json(healthChecks);
  } catch (error) {
    res.status(500).json({ error: 'Failed to get connection pool health' });
  }
});

app.get('/api/connection-pool/performance', async (req, res) => {
  try {
    const metrics = await ConnectionPoolManager.getPerformanceMetrics();
    res.json(metrics);
  } catch (error) {
    res.status(500).json({ error: 'Failed to get connection pool performance metrics' });
  }
});

// Setup global error handling
setupGlobalErrorHandling(app);

export default app;