/**
 * Express server entry point.
 */

import express from 'express';
import cors from 'cors';
import { join, dirname } from 'path';
import { fileURLToPath } from 'url';
import { config } from 'dotenv';
import { apiRouter } from './api/index.js';

// Load environment variables from orchestrator root
const __dirname = dirname(fileURLToPath(import.meta.url));
config({ path: join(__dirname, '../../.env') });

const app = express();
const PORT = process.env.PORT || 3001;

// Middleware
app.use(cors());
app.use(express.json());

// Logging middleware
app.use((req, res, next) => {
  const start = Date.now();
  res.on('finish', () => {
    const duration = Date.now() - start;
    console.log(`${req.method} ${req.path} - ${res.statusCode} (${duration}ms)`);
  });
  next();
});

// API routes
app.use('/api', apiRouter);

// Serve static files for generated PDFs
const pdfDir = join(__dirname, '../../data/pdfs');
app.use('/pdfs', express.static(pdfDir));

// Health check
app.get('/health', (req, res) => {
  res.json({ status: 'ok', timestamp: new Date().toISOString() });
});

// Serve client app in production
if (process.env.NODE_ENV === 'production') {
  const clientDir = join(__dirname, '../../dist/client');
  app.use(express.static(clientDir));
  
  // SPA fallback
  app.get('*', (req, res) => {
    res.sendFile(join(clientDir, 'index.html'));
  });
}

// Start server
app.listen(PORT, () => {
  console.log(`
╔═══════════════════════════════════════════════════════════╗
║                                                           ║
║   🚀 Job Ops Orchestrator                                 ║
║                                                           ║
║   Server running at: http://localhost:${PORT}               ║
║                                                           ║
║   API:     http://localhost:${PORT}/api                     ║
║   Health:  http://localhost:${PORT}/health                  ║
║   PDFs:    http://localhost:${PORT}/pdfs                    ║
║                                                           ║
╚═══════════════════════════════════════════════════════════╝
  `);
});