Function extractThumbnailMarkdown

site/thumbnail.ts:78–91

(node)

  ].filter((markdown): markdown is string => markdown != null);

export const extractThumbnailMarkdown: NodeTransform = (node) => {
  if (node.reflection != null) {
    node.data[THUMBNAIL] = getReflectionMarkdown(node.reflection)
      .map((markdown) => findFirstImage(markdown))
      .find((thumbnail) => thumbnail != null);
    return;
  }
  const summaryParts = splitLeadingImage(node.summary);
  const bodyParts = splitLeadingImage(node.body);
  node.data[THUMBNAIL] = summaryParts.thumbnail ?? bodyParts.thumbnail;
  node.summary = summaryParts.markdown;
  node.body =
    summaryParts.thumbnail == null ? bodyParts.markdown : (node.body ?? '');
};

export const getThumbnailMarkdown = (
  node: Node,