import Fastify from 'fastify';
import fastifySocketIO from 'fastify-socket.io';
import nodemailer from 'nodemailer';

const fastify = Fastify({ logger: true });

// Configuration du serveur de notification
fastify.register(fastifySocketIO, {
  cors: {
    origin: true,
    methods: ['GET', 'POST']
  }
});

// Configuration du transporteur email
const transporter = nodemailer.createTransporter({
  host: process.env.SMTP_HOST || 'localhost',
  port: 587,
  secure: false,
  auth: {
    user: process.env.SMTP_USER || '',
    pass: process.env.SMTP_PASS || ''
  }
});

// Route pour envoyer des emails
fastify.post('/send-email', async (request, reply) => {
  try {
    const { to, subject, text, html } = request.body as any;
    
    const mailOptions = {
      from: process.env.SMTP_USER,
      to,
      subject,
      text,
      html
    };
    
    await transporter.sendMail(mailOptions);
    reply.send({ success: true, message: 'Email envoyé avec succès' });
  } catch (error) {
    fastify.log.error(error);
    reply.status(500).send({ success: false, error: 'Erreur lors de l\'envoi de l\'email' });
  }
});

// Route pour envoyer des notifications WebSocket
fastify.post('/send-notification', async (request, reply) => {
  try {
    const { userId, message, type } = request.body as any;
    
    fastify.io.emit('notification', {
      userId,
      message,
      type,
      timestamp: new Date().toISOString()
    });
    
    reply.send({ success: true, message: 'Notification envoyée' });
  } catch (error) {
    fastify.log.error(error);
    reply.status(500).send({ success: false, error: 'Erreur lors de l\'envoi de la notification' });
  }
});

// Gestion des connexions WebSocket
fastify.ready().then(() => {
  fastify.io.on('connection', (socket) => {
    console.log('Nouvelle connexion WebSocket:', socket.id);
    
    socket.on('join-room', (userId) => {
      socket.join(`user-${userId}`);
      console.log(`Utilisateur ${userId} a rejoint sa room`);
    });
    
    socket.on('disconnect', () => {
      console.log('Connexion fermée:', socket.id);
    });
  });
});

// Démarrage du serveur
const start = async () => {
  try {
    await fastify.listen({ port: 4000, host: '0.0.0.0' });
    console.log('Service de notification démarré sur le port 4000');
  } catch (err) {
    fastify.log.error(err);
    process.exit(1);
  }
};

start();