// SEO + AI metadata — per-route titles, descriptions, Open Graph, and JSON-LD.
// Updates document head reactively when the route changes.

const SITE = {
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  url: 'https://tailoredmediation.com',
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  twitter: '@dbgarrie',
};

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    description: 'Arbitrator and protocol architect for AI disputes — model output liability, training data IP, hallucination, algorithmic bias, generative IP, embedded ML in safety-critical products.',
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  },
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    title: 'Arbitration — Sole or panel · Tailored Mediation',
    description: 'Sole and panel arbitrator for technically complex commercial matters. SaaS SLA, data breach coverage, cryptocurrency, software licensing, patent validity/infringement, smart contracts.',
    keywords: 'arbitration, technical arbitrator, SaaS arbitration, cyber insurance arbitration, software licensing arbitration',
  },
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    title: 'Explore — Sitemap & Wayfinding · Tailored Mediation',
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    title: 'Contact — Tailored Mediation · Daniel B. Garrie, Esq.',
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    title: 'Legal — Privacy, Terms, Disclaimer, Accessibility · Tailored Mediation',
    description: 'Privacy policy, terms of use, disclaimer, and accessibility statement for tailoredmediation.com.',
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};

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  url: 'https://tailoredmediation.com',
  logo: 'https://tailoredmediation.com/assets/dg-portrait-sm.jpg',
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// Article schema generator — used when an article-* route is active.
// articleId is the unique slug (e.g. 'hallucinations'); meta comes from window.articles.
function makeArticleJSONLD(articleId) {
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    articleSection: article.cat,
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}

// FAQ schema generator — for the /faq page.
function makeFAQJSONLD() {
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function makeBreadcrumb(page) {
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    'publications': [{ name: 'Home', item: 'https://tailoredmediation.com/' }, { name: 'Publications', item: 'https://tailoredmediation.com/publications' }],
    'speaking': [{ name: 'Home', item: 'https://tailoredmediation.com/' }, { name: 'Speaking', item: 'https://tailoredmediation.com/speaking' }],
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    'explore': [{ name: 'Home', item: 'https://tailoredmediation.com/' }, { name: 'Explore', item: 'https://tailoredmediation.com/explore' }],
    'intake': [{ name: 'Home', item: 'https://tailoredmediation.com/' }, { name: 'Intake', item: 'https://tailoredmediation.com/intake' }],
    'contact': [{ name: 'Home', item: 'https://tailoredmediation.com/' }, { name: 'Contact', item: 'https://tailoredmediation.com/contact' }],
    'legal': [{ name: 'Home', item: 'https://tailoredmediation.com/' }, { name: 'Legal', item: 'https://tailoredmediation.com/legal' }],
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      '@type': 'ListItem',
      position: i + 1,
      name: it.name,
      item: it.item,
    })),
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}

function setMeta(name, value, attr = 'name') {
  if (!value) return;
  let el = document.querySelector(`meta[${attr}="${name}"]`);
  if (!el) {
    el = document.createElement('meta');
    el.setAttribute(attr, name);
    document.head.appendChild(el);
  }
  el.setAttribute('content', value);
}

function setLink(rel, href) {
  let el = document.querySelector(`link[rel="${rel}"]`);
  if (!el) {
    el = document.createElement('link');
    el.setAttribute('rel', rel);
    document.head.appendChild(el);
  }
  el.setAttribute('href', href);
}

function injectJSONLD(id, data) {
  let el = document.getElementById(id);
  if (!el) {
    el = document.createElement('script');
    el.id = id;
    el.type = 'application/ld+json';
    document.head.appendChild(el);
  }
  el.textContent = JSON.stringify(data);
}

function removeJSONLD(id) {
  const el = document.getElementById(id);
  if (el) el.remove();
}

// Truncate a string to ~155 characters (Google's typical SERP cutoff).
function clamp(s, n = 155) {
  if (!s) return s;
  if (s.length <= n) return s;
  return s.slice(0, n - 1).replace(/\s+\S*$/, '') + '\u2026';
}

// Public component — drop in App, pass current `page`.
function SEO({ page }) {
  React.useEffect(() => {
    // Article routes carry meta drawn from the article object.
    let meta = ROUTE_META[page];
    let isArticle = false;
    let articleId = null;
    if (!meta && typeof page === 'string' && page.startsWith('article-')) {
      isArticle = true;
      articleId = page.replace('article-', '');
      const article = (window.articles || []).find(a => a.id === articleId);
      if (article) {
        meta = {
          title: `${article.title} \u00b7 Insights from the Bench \u00b7 Daniel B. Garrie`,
          description: article.deck,
          keywords: (article.tags || []).concat([article.cat, 'Daniel Garrie', 'mediation', 'arbitration']).join(', '),
        };
      }
    }
    if (!meta) meta = ROUTE_META['home'];

    document.title = meta.title;
    setMeta('description', clamp(meta.description, 158));
    setMeta('keywords', meta.keywords);

    // Canonical URL — must match the routes in /index.html and sitemap.xml
    const PATH_MAP = {
      'home': '',
      'what-is': 'what-is-tailored-mediation',
      'tailored-vs-standard': 'tailored-vs-standard-mediation',
    };
    const path =
      isArticle ? `insights/${articleId}` :
      PATH_MAP[page] !== undefined ? PATH_MAP[page] :
      page;
    const url = `https://tailoredmediation.com/${path}`;
    setLink('canonical', url);

    // Open Graph
    setMeta('og:title', meta.title, 'property');
    setMeta('og:description', clamp(meta.description, 200), 'property');
    setMeta('og:url', url, 'property');
    setMeta('og:image', SITE.ogImage, 'property');
    setMeta('og:image:width', '1200', 'property');
    setMeta('og:image:height', '630', 'property');
    setMeta('og:image:alt', 'Tailored Mediation \u2014 Daniel B. Garrie, Esq.', 'property');
    setMeta('og:type', isArticle ? 'article' : 'website', 'property');
    setMeta('og:site_name', SITE.name, 'property');
    setMeta('og:locale', 'en_US', 'property');

    // Article-specific OG
    if (isArticle) {
      const article = (window.articles || []).find(a => a.id === articleId);
      if (article) {
        setMeta('article:author', 'Daniel B. Garrie, Esq.', 'property');
        setMeta('article:section', article.cat, 'property');
        try {
          const d = new Date(article.date);
          if (!isNaN(d.getTime())) setMeta('article:published_time', d.toISOString(), 'property');
        } catch (e) {}
        (article.tags || []).forEach(t => {
          // article:tag can repeat, but with only one tag meta, latest wins.
          // For multi-tag fidelity we'd need separate <meta> elements; this is approximate.
        });
      }
    }

    // Twitter
    setMeta('twitter:card', 'summary_large_image');
    setMeta('twitter:title', meta.title);
    setMeta('twitter:description', clamp(meta.description, 200));
    setMeta('twitter:image', SITE.ogImage);
    setMeta('twitter:image:alt', 'Tailored Mediation \u2014 Daniel B. Garrie, Esq.');

    // Robots — index everything except intake (private form)
    setMeta('robots', page === 'intake' ? 'noindex, follow' : 'index, follow, max-image-preview:large');

    // Always-on JSON-LD
    injectJSONLD('jsonld-person', PERSON_JSONLD);
    injectJSONLD('jsonld-org', ORGANIZATION_JSONLD);
    injectJSONLD('jsonld-breadcrumb', makeBreadcrumb(isArticle ? 'insights' : page));

    // Article JSON-LD only on article routes
    if (isArticle && articleId) {
      const data = makeArticleJSONLD(articleId);
      if (data) injectJSONLD('jsonld-article', data); else removeJSONLD('jsonld-article');
    } else {
      removeJSONLD('jsonld-article');
    }

    // FAQ JSON-LD only on FAQ page
    if (page === 'faq') {
      const data = makeFAQJSONLD();
      if (data) injectJSONLD('jsonld-faq', data); else removeJSONLD('jsonld-faq');
    } else {
      removeJSONLD('jsonld-faq');
    }
  }, [page]);
  return null;
}

Object.assign(window, { SEO, ROUTE_META, PERSON_JSONLD, ORGANIZATION_JSONLD });