/**
 * Copyright 2020 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
// @license © 2020 Google LLC. Licensed under the Apache License, Version 2.0.

/**
 * Saves a file to disk using the legacy `<a download>` method.
 * @type { typeof import("../../index").fileSave }
 */
export default async (blob, options = {}) => {
  const a = document.createElement('a');
  a.download = options.fileName || 'Untitled';
  a.href = URL.createObjectURL(blob);
  a.addEventListener('click', () => {
    // `setTimeout()` due to
    // https://github.com/LLK/scratch-gui/issues/1783#issuecomment-426286393
    setTimeout(() => URL.revokeObjectURL(a.href), 30 * 1000);
  });
  a.click();
};