import {Router} from 'express'

export default (auth) => {
  const app = Router();

  app.get('/profile', (req, res) => {
    const token = req.header('Token');
    if (token) {
      const user = auth.validate(token);
      if (user) {
        res.send({
          user: user
        })
      } else {
        res.send({
          error: 403
        })
      }
    } else {
      res.sendStatus(400)
    }
  });

  app.post('/login', async (req, res) => {
    const email = req.body.email;
    const password = req.body.password;
    if (!email || !password) {
      res.send({
        error: 'Не все поля заполнены'
      })
    } else {
      if (validateEmail(email)) {
        const loginResult = await auth.login(email, password);
        if (loginResult.error) {
          res.send({
            error: loginResult.error
          });
        } else {
          res.send({
            token: auth.authorize(loginResult.result)
          });
        }
      } else {
        res.send({
          error: 'Email не валиден'
        })
      }
    }
  });

  app.post('/signup', async (req, res) => {
    const email = req.body.email;
    const name = req.body.name;
    const password = req.body.password;
    const confirmPassword = req.body.confirmPassword;
    if (!email || !name || !password || !confirmPassword) {
      res.send({
        fields: [email, name, password, confirmPassword],
        error: 'Не все поля заполнены'
      })
    } else {
      if (validateEmail(email)) {
        const registrationResult = await auth.register(email, name, password, confirmPassword);
        if (registrationResult.error) {
          res.send({
            error: registrationResult.error
          });
        } else {
          res.send({
            token: auth.authorize(registrationResult.result)
          })
        }
      } else {
        res.send({
          error: 'Email не валиден'
        })
      }
    }
  });

  function validateEmail(email) {
    const re = /^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
    return re.test(email);
  }

  return app;
};