const baseUrl = window.location.pathname
  // remove index.html if it's there
  .replace(/index.html$/, '')
  // remove tests prefix which is added by testem (starting with a number)
  .replace(/\/\d+\/tests/, '')
  // remove tests prefix which is added by tests run in browser
  .replace(/tests/, '')
  // remove leading and trailing slash
  .replace(/\/$/, '')
  // add api/index.php
  .concat('/api/index.php');

function apiUrl(path: string) {
  return `${baseUrl}/${path}`;
}

class NotFoundError extends Error {}

export { apiUrl, NotFoundError };