{#
================================================================================
Class Member Macro (Kida-Native v2)
================================================================================

Renders a class as a collapsible card with status dot, count badge, and description.
Uses the unified autodoc design system.

USAGE:
  {% from 'autodoc/partials/_macros/class-member.html' import class_member %}
  {{ class_member(cls, is_first=loop.first) }}

ARGS:
  cls: Class DocElement to render (required)
  is_first: Whether this is the first item (to auto-open)

KIDA FEATURES SHOWCASED:
  - {% let %} multi-assignment for template-scoped caching
  - {% match %} for pluralization and conditional dispatch
  - {% unless %} for negative conditionals
  - Optional chaining (?.) for safe attribute access
  - Null coalescing (??) for defaults
  - Pipeline operators (|>) for filter chains
  - {% spaceless %} for clean badge output

================================================================================
#}

{% def class_member(cls, is_first=false) %}
{# Pre-compute all values with null-safety (using multi-let) #}
{% let
    cls_children = cls?.children ?? [],
    cls_methods = cls_children |> selectattr('element_type', 'eq', 'method') |> list,
    cls_attrs = cls_children |> selectattr('element_type', 'eq', 'attribute') |> list,
    cls_props = cls_children |> selectattr('element_type', 'eq', 'property') |> list,
    all_attrs = cls_attrs + cls_props,
    total_members = (cls_methods | length) + (all_attrs | length),
    cls_meta = cls?.metadata ?? {},
    is_dataclass = cls_meta?.is_dataclass ?? false,
    is_abstract = cls_meta?.is_abstract ?? false,
    is_mixin = cls_meta?.is_mixin ?? false,
    cls_name = cls?.name ?? 'Unknown',
    cls_desc = cls?.description ?? ''
%}

<details class="autodoc-member" data-member="class" {% if is_first %}open{% end %}>
  <summary class="autodoc-member-header">
    {# Status dot (yellow/amber for classes) #}
    <span class="autodoc-member-dot"></span>

    {# Content wrapper #}
    <div class="autodoc-member-content">
      <div class="autodoc-member-name-row">
        <code class="autodoc-member-name">{{ cls_name }}</code>
        {# Count badge with smart pluralization using match #}
        {% spaceless %}
        <span class="autodoc-member-count" title="{% match cls_methods | length %}{% case 1 %}1 method{% case n %}{{ n }} methods{% end %}{% if all_attrs | length > 0 %}, {% match all_attrs | length %}{% case 1 %}1 attribute{% case n %}{{ n }} attributes{% end %}{% end %}">{{ total_members }}</span>
        {% end %}
        {# Toggle indicator #}
        <span class="autodoc-member-toggle">▼</span>
      </div>
      {# Description preview #}
      {% with cls_desc as desc %}
      <span class="autodoc-member-desc-preview">{{ desc |> truncate(100, true, '…') }}</span>
      {% end %}
    </div>

    {# Badges - using data-driven approach with match for badge rendering #}
    {% let badge_flags = [
      {'key': 'dataclass', 'active': is_dataclass},
      {'key': 'abstract', 'active': is_abstract},
      {'key': 'mixin', 'active': is_mixin}
    ] %}
    {% let active_badges = badge_flags |> selectattr('active') |> list %}
    {% if active_badges | length > 0 %}
    {% spaceless %}
    <span class="autodoc-member-badges">
      {% for badge in active_badges %}
      <span class="autodoc-badge" data-badge="{{ badge.key }}">{{ badge.key }}</span>
      {% end %}
    </span>
    {% end %}
    {% end %}
  </summary>

  <div class="autodoc-member-body">
    {% with cls_desc as desc %}
    <div class="autodoc-member-desc prose">
      {{ desc |> markdownify |> safe }}
    </div>
    {% end %}

    {# Class attributes (from children with element_type='attribute' or 'property') #}
    {% if all_attrs | length > 0 %}
    <div class="autodoc-section" data-section="attributes">
      <h4 class="autodoc-label">Attributes</h4>
      <table class="autodoc-table" data-table="attributes">
        <thead>
          <tr>
            <th>Name</th>
            <th>Type</th>
            <th>Description</th>
          </tr>
        </thead>
        <tbody>
          {% for attr in all_attrs %}
          {# Use let instead of set for Kida-native syntax #}
          {% let
              attr_meta = attr?.metadata ?? {},
              attr_type = attr_meta?.annotation,
              attr_name = attr?.name ?? 'unknown',
              attr_desc = attr?.description ?? ''
          %}
          <tr>
            <td class="autodoc-cell-name"><code>{{ attr_name }}</code></td>
            <td class="autodoc-cell-type">
              {% match attr_type %}
              {% case type if type %}<code>{{ type }}</code>
              {% case _ %}—
              {% end %}
            </td>
            <td class="autodoc-cell-desc">
              {% match attr_desc %}
              {% case desc if desc %}{{ desc |> markdownify |> safe }}
              {% case _ %}—
              {% end %}
            </td>
          </tr>
          {% end %}
        </tbody>
      </table>
    </div>
    {% end %}

    {# Class methods - use unified members partial with let #}
    {% if cls_methods | length > 0 %}
    <div class="autodoc-section" data-section="methods">
      <h4 class="autodoc-label">Methods</h4>
      {% let members = cls_methods %}
      {% let title = '' %}
      {% let member_type = 'method' %}
      {% let first_open = false %}
      {% include 'autodoc/partials/members.html' %}
    </div>
    {% end %}
  </div>
</details>
{% end %}