import passport from 'passport';
import { Response, NextFunction } from 'express';
import { validateSignInForm, tokenPayload } from './signin-signup-token';
import { AuthRequest } from '../../types';
import { getRequestHost } from '../services/req-host';

export function signin(req: AuthRequest, res: Response, next: NextFunction) {
  const validationErrors = validateSignInForm(req.body);

  if (Object.keys(validationErrors).length > 0) {
    return res.status(401).json({ errors: validationErrors });
  }

  return passport.authenticate('local-login', (error, data) => {
    if (error !== null) {
      return res.status(401).json({
        errors: {
          [error.code === 'INCORRECT_CREDENTIALS' ? 'password' : 'general']: error,
        },
      });
    }
    if (!data) {
      return res.status(401).json({
        errors: {
          password: 'password is incorrect',
        },
      });
    }
    tokenPayload(getRequestHost(req), res, data);
  })(req, res, next);
}