/** Provides an avenue of fetching resources via HTTP calls. */
function HttpGetter(): void {}

/**
 * Fetches files using HTTP get requests.
 *
 * @param filename -  The filename to fetch.
 * @returns The HTTP response text.
 */
HttpGetter.prototype.get = (filename) =>
  new Promise((resolve, reject) => {
    const xhr: XMLHttpRequest = new XMLHttpRequest();
    xhr.addEventListener('load', (e) => {
      if (xhr.status === 200) {
        resolve(xhr.responseText);
        return;
      }
      reject('failed with status ' + xhr.status + ': ' + xhr.statusText);
    });
    xhr.open('GET', filename);
    xhr.send();
  });

/** @exports */
export { HttpGetter };