{% macro typeof(thing) %}
    {% if thing is iterable %}
        {% if thing is object %}
            dict
        {% else %}
            list
        {% endif %}
    {% else %}
        {% if thing is string %}
            str
        {% elif thing is number %}
            num
        {% else %}
            other
        {% endif %}
    {% endif %}
{% endmacro typeof %}

{% macro render_article_summary(page) %}
    <h1><a href="{{ page.permalink }}" class="stealth">{{ page.title }}</a></h1>
    {% set d = page.date is defined %}
    {% set a = page.extra.author is defined %}
    {% set r = page.reading_time is defined %}
    {% if d or a or r %}
    <span class="sidebyside">
        <span>
            {% if d %}<time>{{ page.date }}</time>{% if a %}, {% endif %}{% endif %}{% if a %}by {{ page.extra.author }}{% endif %}
        </span>
        <span>{% if page.reading_time %}{{ page.reading_time }} minute read{% endif %}</span>
    </span>
    {% endif %}
    {% if page.summary %}
        {% if config.extra.summary_max_length %}
            {{ page.summary | safe | truncate(length=config.extra.summary_max_length) }}
        {% else %}
            {{ page.summary | safe }}
        {% endif %}
    {% endif %}
{% endmacro render_article_summary %}

{% macro toc(page) %}
    <ul class="toc">
    <li>
        <a class="stealth" href="{{ page.permalink | safe }}#page-title">{{ page.title }}</a>
    </li>
    {% for h1 in page.toc %}
        <li>
            <a class="stealth" href="{{ h1.permalink | safe }}">{{ h1.title }}</a>
            {% if h1.children %}
                <ul>
                    {% for h2 in h1.children %}
                        <li>
                            <a class="stealth" href="{{ h2.permalink | safe }}">{{ h2.title }}</a>
                        </li>
                    {% endfor %}
                </ul>
            {% endif %}
        </li>
    {% endfor %}
    </ul>
{% endmacro toc %}

{% macro debug(thing, label="", recurse=0) %}
    
        {% set type = self::typeof(thing=thing) | trim %}
        
        <span>{% if label %}{{ label }}: {% endif %}<em>{{ type }}</em></span>

        {% set rdepth = recurse - 1 %}
    <div class="debug">
        {% if type == "dict" %}
            {% for k, v in thing %}
                {% if v is iterable and recurse %}
                    <span>{{ k }}: {{ self::debug(thing=v, recurse=rdepth) }}</span>
                {% else %}
                    <span>{{ k }}: {{ v }}</span><br>
                {% endif %}
            {% endfor %}
        {% elif type == "list" %}
            {% for v in thing %}
                {% if v is iterable and recurse %}
                    <span>{{ self::debug(thing=v, recurse=rdepth) }}</span>
                {% else %}
                    <span>{{ v }}</span><br>
                {% endif %}
            {% endfor %}
        {% else %}
            {{ thing }}
        {% endif %}
    </div>
{% endmacro debug %}

{% macro parent_tree(ancestors) %}
    <div class="sections">
        {% for sect in ancestors %}
            {% set sect = get_section(path=sect) %}
            <span style="padding-left: {{ loop.index0 }}em;">
                <a href="{{ sect.permalink }}" class="stealth">
                    {{ sect.title }}/
                </a>
            </span>
        {% endfor %}    
    </div>
{% endmacro section_tree %}

{% macro subsection_tree(subs) %}
    <ul>
        {% for sub in subs %}
            {% set sub = get_section(path=sub) %}
            <li><a href="{{ sub.permalink }}" class="stealth">
                {{ sub.title }}
            </a></li>
        {% endfor %}
    </ul>
{% endmacro subsection_tree %}