{#-
Article JSON-LD Structured Data Component

Generates schema.org TechArticle (docs) or BlogPosting (posts) for SEO and AI discovery.
Renders when structured_data.article is enabled (default: true) and page is doc or post.

Uses page: title, description, date, section, word_count, toc_items, author
Uses site: baseurl, title

Usage in base.html head:
  {% include "partials/article-jsonld.html" %}
-#}

{%- set article_enabled = (config.structured_data ?? {}).article ?? true %}
{%- set is_doc = (page?.type ?? '') == 'doc' or (page?.kind ?? '') == 'doc' %}
{%- set is_post = (page?.type ?? '') == 'post' or (page?.kind ?? '') == 'post' %}
{%- set _toc = page.toc_items ?? toc_items ?? [] %}
{%- if article_enabled and (is_doc or is_post) %}
<script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@type": {{ "TechArticle" if is_doc else "BlogPosting" | tojson }},
  "headline": {{ page.title | tojson }},
  "description": {{ (page.description ?? page.summary ?? '') | tojson }},
  {%- if page.date %}
  "datePublished": {{ page.date.isoformat() if page.date is defined and hasattr(page.date, 'isoformat') else page.date | tojson }},
  {% end %}
  {%- set last_mod = page.metadata.get('lastmod') ?? page.metadata.get('last_modified') ?? page.metadata.get('updated') %}
  {%- if last_mod %}
  "dateModified": {{ (last_mod.isoformat() if hasattr(last_mod, 'isoformat') else last_mod) | tojson }},
  {% end %}
  {%- if page.author ?? site.author %}
  "author": {
    "@type": "Person",
    "name": {{ (page.author ?? site.author ?? '') | tojson }}
  },
  {% end %}
  {%- set wc = page.word_count ?? 0 %}
  "wordCount": {{ wc }}{{ "," if section or (site.baseurl and page.href) or site.title or (_toc | length > 0) else "" }}
  {%- if section %}
  "articleSection": {{ (section.title ?? section.name ?? '') | tojson }}{{ "," if (site.baseurl and page.href) or site.title or (_toc | length > 0) else "" }}
  {% end %}
  {%- if site.baseurl and page.href %}
  "url": {{ (site.baseurl ~ page.href) | tojson }}{{ "," if (site.title or _toc | length > 0) else "" }}
  {% end %}
  {%- if site.title %}
  "isPartOf": {
    "@type": "WebSite",
    "name": {{ site.title | tojson }}{% if site.baseurl %},
    "url": {{ site.baseurl | tojson }}{% end %}
  }{{ "," if (_toc | length > 0) else "" }}
  {% end %}
  {%- if _toc | length > 0 %}
  "hasPart": [
    {%- for item in _toc %}
    {
      "@type": "WebPageElement",
      "name": {{ item.title | tojson }},
      "url": {{ ((site.baseurl ?? '') ~ page.href ~ '#' ~ item.id) | tojson }}
    }{{ "," if not loop.last else "" }}
    {% end %}
  ]
  {% end %}
}
</script>
{% end %}