MediaWiki:Common.js

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mw.loader.using('mediawiki.util', function () {

  if (mw.config.get('wgNamespaceNumber') !== 0) return;

  function injectSchema() {

    // Avoid duplicate injection
    if (document.getElementById('bw-entity-schema')) return;

    const infobox = document.querySelector('table.infobox');
    if (!infobox) return;

    const metaDesc =
      document.querySelector('meta[name="description"]')?.content || "";

    const pageTitle = mw.config.get('wgTitle');
    const pageUrl = location.href;

    const text = infobox.innerText.toLowerCase();
    let schema = null;

    // COMPANY
    if (text.includes('industry') || text.includes('founded')) {
      schema = {
        "@context": "https://schema.org",
        "@type": "Organization",
        "name": pageTitle,
        "url": pageUrl,
        "description": metaDesc
      };

      const logo = infobox.querySelector('img')?.src;
      if (logo) schema.logo = logo;
    }

    // PERSON
    else if (text.includes('born')) {
      schema = {
        "@context": "https://schema.org",
        "@type": "Person",
        "name": pageTitle,
        "url": pageUrl,
        "description": metaDesc
      };

      const image = infobox.querySelector('img')?.src;
      if (image) schema.image = image;
    }

    if (!schema) return;

    const script = document.createElement('script');
    script.type = 'application/ld+json';
    script.id = 'bw-entity-schema';
    script.text = JSON.stringify(schema);

    document.head.appendChild(script);
  }

  // Watch for SEO plugin injecting Article schema
  const observer = new MutationObserver(injectSchema);
  observer.observe(document.head, { childList: true, subtree: true });

  // Also try once after load
  window.addEventListener('load', injectSchema);

});