Add trending tags

Author: soarespaullo

_includes/trending-tags.html

@@ -0,0 +1,46 @@
+<!-- The trending tags list -->
+
+{% assign MAX = 10 %}
+
+{% assign size_list = '' | split: '' %}
+{% assign tag_list = '' | split: '' %}
+
+{% for tag in site.tags %}
+  {% assign size = tag | last | size %}
+  {% assign size_list = size_list | push: size %}
+
+  {% assign tag_str = tag | first | append: '::' | append: size %}
+  {% assign tag_list = tag_list | push: tag_str %}
+{% endfor %}
+
+{% assign size_list = size_list | sort | reverse %}
+
+{% assign tag_list = tag_list | sort_natural %}
+
+{% assign trending_tags = '' | split: '' %}
+
+{% for size in size_list limit: MAX %}
+  {% for tag_str in tag_list %}
+    {% assign tag = tag_str | split: '::' %}
+    {% assign tag_name = tag | first %}
+    {% assign tag_size = tag | last | plus: 0 %}
+    {% if tag_size == size %}
+      {% unless trending_tags contains tag_name %}
+        {% assign trending_tags = trending_tags | push: tag_name %}
+        {% break %}
+      {% endunless %}
+    {% endif %}
+  {% endfor %}
+{% endfor %}
+
+{% if trending_tags.size > 0 %}
+  <section>
+    <h2 class="panel-heading">{{- site.data.locales[include.lang].panel.Tags_de_tendências -}}</h2>
+    <div class="d-flex flex-wrap mt-3 mb-1 me-3">
+      {% for tag_name in trending_tags %}
+        {% assign url = tag_name | slugify | url_encode | prepend: '/tags/' | append: '/' %}
+        <a class="post-tag btn btn-outline-primary" href="{{ url | relative_url }}">{{ tag_name }}</a>
+      {% endfor %}
+    </div>
+  </section>
+{% endif %}