const path = require('path');
const express = require('express');
const cors = require('cors');
const helmet = require('helmet');
const { connectDb } = require('./config/db');
const env = require('./config/env');
const authRoutes = require('./routes/authRoutes');
const vendorRoutes = require('./routes/vendorRoutes');
const employeeRoutes = require('./routes/employeeRoutes');
const hrRoutes = require('./routes/hrRoutes');
const safetyRoutes = require('./routes/safetyRoutes');
const dashboardRoutes = require('./routes/dashboardRoutes');
const gateRoutes = require('./routes/gateRoutes');
const managementRoutes = require('./routes/managementRoutes');
const errorHandler = require('./middleware/errorHandler');
const { startExpiryJob } = require('./jobs/expiryJob');
const { ensureSeedUsers } = require('./config/seed');

const app = express();

app.use(helmet());
app.use(cors({ origin: env.frontendUrl }));
app.use(express.json({ limit: '2mb' }));
app.use(express.urlencoded({ extended: true }));

app.use(
  '/uploads',
  (_req, res, next) => {
    res.setHeader('Cross-Origin-Resource-Policy', 'cross-origin');
    next();
  },
  express.static(path.join(__dirname, '..', 'uploads'))
);

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

app.use('/api/auth', authRoutes);
app.use('/api/vendors', vendorRoutes);
app.use('/api/employees', employeeRoutes);
app.use('/api/hr', hrRoutes);
app.use('/api/safety', safetyRoutes);
app.use('/api/dashboard', dashboardRoutes);
app.use('/api/manage', managementRoutes);
app.use('/', gateRoutes);

app.use(errorHandler);

async function boot() {
  try {
    await connectDb();
    await ensureSeedUsers();
    app.listen(env.PORT, '0.0.0.0', () => {
      console.log(`Backend listening on port ${env.port}`);
      startExpiryJob();
    });
  } catch (error) {
    console.error('Failed to start backend', error);
    process.exit(1);
  }
}

boot();