const express = require('express');
const cors = require('cors');
require('dotenv').config({ path: __dirname + '/.env' });

const errorHandler = require('./src/middlewares/errorHandler');
const logger = require('./src/utils/logger');

const app = express();

// Middlewares globales
app.use(cors({
  origin: [process.env.FRONTEND_URL, process.env.ADMIN_URL],
  credentials: true
}));
app.use(express.json());
app.use(express.urlencoded({ extended: true }));

// Servir archivos estáticos (imágenes de productos)
app.use('/uploads', express.static('public/uploads'));

// Logger de requests
app.use((req, res, next) => {
  logger.info(`${req.method} ${req.path}`, {
    ip: req.ip,
    userAgent: req.get('user-agent')
  });
  next();
});

// Rutas
const authRoutes = require('./src/routes/authRoutes');
const productRoutes = require('./src/routes/productRoutes');
const categoryRoutes = require('./src/routes/categoryRoutes');
const inventoryRoutes = require('./src/routes/inventoryRoutes');
const orderRoutes = require('./src/routes/orderRoutes');
const cartRoutes = require('./src/routes/cartRoutes');
const uploadRoutes = require('./src/routes/uploadRoutes');

app.use('/api/auth', authRoutes);
app.use('/api/products', productRoutes);
app.use('/api/categories', categoryRoutes);
app.use('/api/inventory', inventoryRoutes);
app.use('/api/orders', orderRoutes);
app.use('/api/cart', cartRoutes);
app.use('/api/upload', uploadRoutes);

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

// Ruta raíz
app.get('/', (req, res) => {
  res.json({
    name: 'OfertaWeb API',
    version: '1.0.0',
    endpoints: {
      auth: '/api/auth',
      products: '/api/products',
      categories: '/api/categories',
      inventory: '/api/inventory',
      orders: '/api/orders',
      cart: '/api/cart',
      upload: '/api/upload'
    }
  });
});

// Manejo de rutas no encontradas
app.use((req, res) => {
  res.status(404).json({ error: 'Ruta no encontrada' });
});

// Middleware de manejo de errores (debe estar al final)
app.use(errorHandler);

const PORT = process.env.PORT || 3000;
app.listen(PORT, () => {
  console.log(`🚀 Servidor OfertaWeb corriendo en puerto ${PORT}`);
  console.log(`📝 Ambiente: ${process.env.NODE_ENV || 'development'}`);
  logger.info(`Servidor iniciado en puerto ${PORT}`);
});