{% macro articles(_articles, plevel) %}
    {% for article in _articles %}
        {% set alevel = article.level if plevel else article.level | replace(plevel+'.1', plevel, 1) %}
        <li class="chapter {% if article.path == file.path and not article.anchor %}active{% endif %}" data-level="{{ alevel }}" {% if article.path %}data-path="{{ article.path|resolveFile }}"{% endif %}>
            {% if article.path and getPageByPath(article.path) %}
                <a href="{{ article.path|resolveFile }}{{ article.anchor }}">
            {% elif article.url %}
                <a target="_blank" href="{{ article.url }}">
            {% else %}
                <span>
            {% endif %}
                    {% if article.level != "0" and config.pluginsConfig['theme-default'].showLevel %}
                        <b>{{ alevel }}.</b>
                    {% endif %}
                    {{ article.title }}
            {% if article.path  or article.url %}
                </a>
            {% else %}
                </span>
            {% endif %}

            {% if article.articles.length > 0 %}
            <ul class="articles">
                {{ articles(article.articles, plevel) }}
            </ul>
            {% endif %}
        </li>
    {% endfor %}
{% endmacro %}

<ul class="summary">
    {% set _divider = false %}
    {% if config.links.sidebar  %}
    {% for linkTitle, link in config.links.sidebar  %}
        {% set _divider = true %}
        <li>
            <a href="{{ link }}" target="_blank" class="custom-link">{{ linkTitle }}</a>
        </li>
    {% endfor %}
    {% endif %}

    {% if _divider %}
    <li class="divider"></li>
    {% endif %}

    {% for part in summary.parts %}
        {% if (part.articles | length == 1) and (part.articles[0].articles | length > 0) %}
            {% set particle = part.articles[0] %}
        {% else %}
            {% set particle = false %}
        {% endif %}

        {% if part.title %}
            <li class="header">{{ part.title }}</li>
        {% elif not loop.first %}
        <li class="divider"></li>
        {% endif %}

        {% if particle %}
            {{ articles(particle.articles, particle.level | list | first ) }}
        {% else %}
            {{ articles(part.articles) }}
        {% endif %}
    {% endfor %}

    <li class="divider"></li>

    <li>
        <a href="https://www.gitbook.com" target="blank" class="gitbook-link">
            {{ "GITBOOK_LINK"|t }}
        </a>
    </li>
</ul>