import { Asset } from '../types/api';

export const getPreviewUrlForAsset = (asset: Asset): string => {
  if (!asset
    || !asset.contentType
    || !asset.contentType.startsWith('image/')) {
    return '';
  }

  // Note: it was possible to upload a SVG image before, now there is no decoder for it anymore.
  return asset.contentType.startsWith('image/svg')
    ? asset.blobstoreUrl
    : asset.imageUrl.startsWith('/image/') // no resized version yet?
      ? asset.blobstoreUrl
      : asset.imageUrl;
};