/**
 * Extremely simplified server for Next.js
 */

// Basic HTTP server
const http = require('http');
const fs = require('fs');
const path = require('path');

// Port configuration
const PORT = process.env.PORT || 3000;

// Simple static file server
const server = http.createServer((req, res) => {
  console.log(`Request received: ${req.method} ${req.url}`);
  
  // Health check endpoint
  if (req.url === '/health' || req.url === '/api/health') {
    res.writeHead(200, { 'Content-Type': 'application/json' });
    res.end(JSON.stringify({ status: 'ok', timestamp: new Date().toISOString() }));
    return;
  }
  
  // Serve static HTML as fallback
  const indexPath = path.join(__dirname, 'src', 'app', 'index.html');
  fs.readFile(indexPath, (err, content) => {
    if (err) {
      res.writeHead(500);
      res.end('Error loading index.html');
      console.error('Error serving index.html:', err);
      return;
    }
    
    res.writeHead(200, { 'Content-Type': 'text/html' });
    res.end(content);
  });
});

// Start the server
server.listen(PORT, () => {
  console.log(`Server running on port ${PORT}`);
  console.log(`Environment: ${process.env.NODE_ENV || 'development'}`);
});

// Handle errors
server.on('error', (err) => {
  console.error('Server error:', err);
});

// Handle process termination
process.on('SIGTERM', () => {
  console.log('SIGTERM received, shutting down gracefully');
  server.close(() => {
    console.log('Server closed');
    process.exit(0);
  });
});

process.on('uncaughtException', (err) => {
  console.error('Uncaught exception:', err);
});

process.on('unhandledRejection', (reason) => {
  console.error('Unhandled rejection:', reason);
});