if theme.structured_data
  if page.layout === 'post'
    -
      // https://developers.google.com/search/docs/appearance/structured-data/article

      const title = page.title
      const url = page.permalink
      const imageVal = page.cover_type === 'img' ? page.cover : theme.avatar.img
      const image = imageVal ? full_url_for(imageVal) : ''
      const datePublished = page.date.toISOString()
      const dateModified = (page.updated || page.date).toISOString()
      const author = page.copyright_author || config.author
      const authorHrefVal = page.copyright_author_href || theme.post_copyright.author_href || config.url
      const authorHref = full_url_for(authorHrefVal)

      const jsonLd = {
        "@context": "https://schema.org",
        "@type": "BlogPosting",
        "headline": title,
        "url": url,
        "image": image,
        "datePublished": datePublished,
        "dateModified": dateModified,
        "author": [{
          "@type": "Person",
          "name": author,
          "url": authorHref
        }]
      }

      jsonLdScript = JSON.stringify(jsonLd, null, 2)
    -

  else if is_home() && (!page.current || page.current === 1)
    -
      // https://developers.google.com/search/docs/appearance/site-names#website

      const baseUrl = config.url;
      const currentPath = url_for('/');
      const isRootOrSubdomain = currentPath.split('/').filter(Boolean).length === 0;

      if (isRootOrSubdomain) {
        const domain = new URL(config.url).hostname;
        const alternateNames = theme.structured_data.alternate_name || [];

        if (config.subtitle) {
          alternateNames.push(config.subtitle);
        }

        if (domain) {
          alternateNames.push(domain);
        }

        const jsonLd = {
          "@context": "https://schema.org",
          "@type": "WebSite",
          "name": config.title,
          "alternateName": alternateNames,
          "url": full_url_for('/'),
        }

        jsonLdScript = JSON.stringify(jsonLd, null, 2)
      }
    -

  script(type="application/ld+json").
    !{jsonLdScript}