const express = require('express');
const cors = require('cors');
const fetch = require('node-fetch');

// Initialisation de l'application Express
const app = express();
const PORT = process.env.PORT || 8080;

// Configuration CORS
const corsOptions = {
  origin: ['http://local.lecoffreio.4nkweb:3000', 'http://localhost:3000', 'http://lecofrre-front:3000'],
  methods: ['GET', 'POST', 'PUT', 'DELETE', 'OPTIONS'],
  allowedHeaders: ['Content-Type', 'Authorization']
};

app.use(cors(corsOptions));
app.use(express.json());

app.get('/api/v1/health', (req, res) => {
  res.json({ message: 'OK' });
});

app.post('/api/v1/idnot/user/:code', async (req, res) => {
  const code = req.params.code;

  try {
    const params = {
      client_id: 'B3CE56353EDB15A9',
      client_secret: '3F733549E879878344B6C949B366BB5CDBB2DB5B7F7AB7EBBEBB0F0DD0776D1C',
      redirect_uri: 'http://local.lecoffreio.4nkweb:3000/authorized-client',
      grant_type: 'authorization_code',
      code: code
    };

    const response = await fetch('https://qual-connexion.idnot.fr/user/IdPOAuth2/token/idnot_idp_v1', {
      method: 'POST',
      headers: {
        'Content-Type': 'application/x-www-form-urlencoded',
      },
      body: new URLSearchParams(params).toString()
    });

    const json = await response.json();
    res.json({
      accessToken: json.id_token,
      refreshToken: json.access_token
    });
  } catch (error) {
    res.status(500).json({
      error: 'Internal Server Error',
      message: error.message
    });
  }
});

app.listen(PORT, () => {
  console.log(`Server is running on port ${PORT}`);
});