{% extends "!layout.html" %}

{% macro language_href(lang, section) -%}
  {%- if lang == "en" -%}
    {%- if section == "index" -%}{{ pathto('index') }}
    {%- elif section == "introduction" -%}{{ pathto('introduction') }}
    {%- elif section == "getting-started" -%}{{ pathto('getting-started') }}
    {%- elif section == "architecture" -%}{{ pathto('architecture/index') }}
    {%- elif section == "frontend" -%}{{ pathto('frontend/index') }}
    {%- elif section == "operations" -%}{{ pathto('operations/index') }}
    {%- elif section == "contributing" -%}{{ pathto('contributing/index') }}
    {%- elif section == "reference" -%}{{ pathto('reference/index') }}
    {%- endif -%}
  {%- elif lang == "zh_CN" -%}
    {%- if section == "index" -%}{{ pathto('zh_CN/index') }}
    {%- else -%}{{ pathto('zh_CN/' ~ section) }}
    {%- endif -%}
  {%- elif lang == "zh_TW" -%}
    {%- if section == "index" -%}{{ pathto('zh_TW/index') }}
    {%- else -%}{{ pathto('zh_TW/' ~ section) }}
    {%- endif -%}
  {%- elif lang == "ja" -%}
    {%- if section == "index" -%}{{ pathto('ja/index') }}
    {%- else -%}{{ pathto('ja/' ~ section) }}
    {%- endif -%}
  {%- endif -%}
{%- endmacro %}

{% macro language_selection() %}
  {% if pagename.startswith("zh_CN/") %}
    {% set current_language = "简体中文" %}
    {% set normalized = pagename[6:] %}
  {% elif pagename.startswith("zh_TW/") %}
    {% set current_language = "繁體中文" %}
    {% set normalized = pagename[6:] %}
  {% elif pagename.startswith("ja/") %}
    {% set current_language = "日本語" %}
    {% set normalized = pagename[3:] %}
  {% else %}
    {% set current_language = "English" %}
    {% set normalized = pagename %}
  {% endif %}

  {% if normalized == "index" %}
    {% set section = "index" %}
  {% elif normalized == "introduction" %}
    {% set section = "introduction" %}
  {% elif normalized == "getting-started" %}
    {% set section = "getting-started" %}
  {% elif normalized.startswith("architecture") %}
    {% set section = "architecture" %}
  {% elif normalized.startswith("frontend") %}
    {% set section = "frontend" %}
  {% elif normalized.startswith("operations") %}
    {% set section = "operations" %}
  {% elif normalized.startswith("contributing") %}
    {% set section = "contributing" %}
  {% elif normalized.startswith("reference") %}
    {% set section = "reference" %}
  {% else %}
    {% set section = "index" %}
  {% endif %}

  <div class="language-selection" tabindex="0" aria-label="Select language">
    {{ current_language }}
    <ul>
      <li><a href="{{ language_href('en', section)|e }}">English</a></li>
      <li><a href="{{ language_href('zh_CN', section)|e }}">简体中文</a></li>
      <li><a href="{{ language_href('zh_TW', section)|e }}">繁體中文</a></li>
      <li><a href="{{ language_href('ja', section)|e }}">日本語</a></li>
    </ul>
  </div>
{% endmacro %}

{% block document %}
  <div class="documentwrapper">
  {%- if render_sidebar %}
    <div class="bodywrapper">
  {%- endif %}

      {%- block relbar_top %}
        {%- if theme_show_relbar_top|tobool %}
          <div class="related top">
            &nbsp;
          </div>
        {%- endif %}
      {% endblock %}

      <div class="body" role="main">
        {{ language_selection() }}
        {% block body %} {% endblock %}
      </div>

      {%- block relbar_bottom %}
        {%- if theme_show_relbar_bottom|tobool %}
          <div class="related bottom">
            &nbsp;
          </div>
        {%- endif %}
      {% endblock %}

  {%- if render_sidebar %}
    </div>
  {%- endif %}
  </div>
{% endblock %}