{#
Documentation navigation.

The tree still comes from Bengal's NavTree context, but the emitted chrome uses
Chirp UI sidebar primitives instead of a bespoke docs-nav class system.
#}

{% from 'chirpui/sidebar.html' import sidebar, sidebar_link, sidebar_section %}

{% def nav_node(item, depth=0) %}
{% let item_title = item?.title ?? 'Untitled' %}
{% let item_href = item?.href ?? '' %}
{% let item_children = item?.children ?? [] %}
{% let is_current = item?.is_current ?? false %}
{% let has_children = item_children | length > 0 %}

{% if has_children %}
  {% call sidebar_section(item_title, collapsible=depth > 0, cls='chirp-theme-docs-nav__section chirp-theme-docs-nav__section--depth-' ~ depth) %}
    {% if item_href %}
    {{ sidebar_link(item_href | absolute_url, item_title, active=is_current, boost=false, cls='chirp-theme-docs-nav__branch-link') }}
    {% end %}
    {% for child in item_children %}
    {{ nav_node(child, depth + 1) }}
    {% end %}
  {% end %}
{% else %}
  {% if item_href %}
  {{ sidebar_link(item_href | absolute_url, item_title, active=is_current, boost=false, cls='chirp-theme-docs-nav__leaf-link') }}
  {% else %}
  <span class="chirpui-sidebar__link chirp-theme-docs-nav__leaf-link">{{ item_title }}</span>
  {% end %}
{% end %}
{% end %}

{% let is_autodoc = is_autodoc_page(page) if is_autodoc_page is defined else false %}
{% let page_section = page?._section %}
{% let root_section = page_section?.root ?? none %}
{% let current_path = page?.href ?? page?._path ?? '' %}

{% call sidebar(cls='chirp-theme-docs-nav', current_path=current_path) %}
  {% slot header %}
  {% unless is_autodoc %}
  {% include 'partials/version-selector.html' %}
  {% end %}
  {% end %}

  {% if root_section %}
  {% let nav_context = get_nav_context(page, root_section=root_section) %}
  {% with nav_context?.root as root_item %}
  {{ nav_node(root_item, 0) }}
  {% end %}
  {% else %}
  {% let nav_items = get_nav_tree(page) ?? [] %}
  {% for item in nav_items %}
  {{ nav_node(item, 0) }}
  {% end %}
  {% end %}
{% end %}