function _asyncToGenerator(fn) {
  return function () {
    const gen = Reflect.apply(fn, this, arguments);
    return new Promise((resolve, reject) => {
      function step(key, arg) {
        try {
          var info = gen[key](arg);
          var value = info.value;
        } catch (error) {
          reject(error);
          return;
        }
        if (info.done) {
          resolve(value);
        } else {
          // eslint-disable-next-line consistent-return
          return Promise.resolve(value).then(
            value => {
              step('next', value);
            },
            error => {
              step('throw', error);
            },
          );
        }
      }
      return step('next');
    });
  };
}

module.exports = Ferdium =>
  class Grape extends Ferdium {
    validateUrl(url) {
      return _asyncToGenerator(function* () {
        try {
          const resp = yield window.fetch(url, {
            method: 'GET',
          });
          return resp.status === 200;
        } catch (error) {
          console.error(error);
        }

        return false;
      })();
    }
  };