/**
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */

export function checkStatus(response: any) {
  if (response.status >= 200 && response.status < 300) {
    return response;
  } else {
    let error = new Error(response.statusText);
    (<any>error).response = response;
    throw error;
  }
}

export function parseJSON(response: any) {
  return response.json();
}

export function makeQueryString(url: string, params: any = {}): string {
  if (!params) return url;

  let key: string;
  let qs: string[] = [];
  for (key in params) {
    if (params.hasOwnProperty(key)) {
      qs.push(key + "=" + encodeURIComponent(params[key]));
    }
  }
  if (qs.length) {
    url += "?" + qs.join("&");
  }
  return url;
}