const basicAuthParser = require('basic-auth')

var basicAuth = function (req, res, next) {
  const user = basicAuthParser(req)
  const validUser = user &&
                  user.name === process.env.BASIC_AUTH_USER &&
                  user.pass === process.env.BASIC_AUTH_PASS

  if (!validUser) {
    res.set('WWW-Authenticate', 'Basic realm=Authorization Required')
    return res.sendStatus(401)
  }

  next()
}

module.exports = function enableSimpleAuth(server) {
  if (process.env.BASIC_AUTH === 'true') server.use(basicAuth)
}