/**
 * Forces a download from the client side.
 * @param content The content of the file to be downloaded
 * @param {string} contentType The type of the content. ex: txt/csv, application/json, application/octet-stream
 * @param {string} fileName The filename, including the extension.
 */
export function forceDownload(
  content: any,
  contentType: string,
  fileName: string
) {
  let blobContent: Array<any>;
  if (Array.isArray(content)) {
    blobContent = content;
  } else {
    blobContent = [content];
  }

  const blob = new Blob(blobContent, { type: contentType });
  const url = window.URL.createObjectURL(blob);

  // Force the download
  const a = document.createElement('a');
  a.href = url;
  a.download = fileName;

  a.style.display = 'none';
  document.body.appendChild(a);

  a.click();

  // Clean up
  window.URL.revokeObjectURL(url);
  document.body.removeChild(a);
}