{% comment %}
 # -----------------------------------------------------------------------------
 #   ~/_includes/themes/j1/procedures/components/create_word_cloud.proc
 #  Liquid PROCEDURE to create a word cloud from a list of comma separated
 #  words.
 #
 #  https://jekyll-one.com
 #
 #  Copyright (C) 2019 Juergen Adams
 #
 #  J1 Template is licensed under the MIT License.
 #  See: https://github.com/jekyll-one/j1_template_mde/blob/master/LICENSE
 #
 # -----------------------------------------------------------------------------
 #  Components procedure. Create the HTML code (to be included in a page) for
 #  a word cloud generated from a LIST of comma separated WORDS. All words are
 #  counted against a given SOURCE (how often they are found).
 #  Supported SOURCES are: tags|categories
 #
 #  If a (second) list of words given by 'skip_words', all words will be
 #  EXCLUDED from the word cloud.
 #
 #    Usage:
 #      1)  assign the 'source', 'word_list' and 'skip_words' variables
 #      2)  include the create_word_cloud.proc procedure
 #
 #  Example:
 #
 #  {% capture create_word_cloud %}themes/{{site.template.name}}/procedures/global/create_word_cloud.proc{% endcapture %}
 #
 #  {% capture my_site_tag_list %}{% for tag in site.tags %}{{ tag | first }}{% unless forloop.last %},{% endunless %}{% endfor %}{% endcapture %}
 #  {% include {{create_word_cloud}} source="tags" word_list=my_site_tag_list %}
 #
 # -----------------------------------------------------------------------------
 # Test data:
 #  liquid_var:  {{ liquid_var | debug }}
 #
 # -----------------------------------------------------------------------------
{% endcomment %}


{% comment %} Variables
   ------------------------------------------------------------ {% endcomment %}

{% assign word_list   = include.word_list %}
{% assign source      = include.source %}
{% assign skip_words  = include.skip_words | remove: ' ' %}

{% assign skip_word_array = skip_words | split:',' | sort %}
{% assign word_array      = word_list  | split:',' | sort %}

{% if source == 'categories' %}
  {% assign categories = site.categories | sort %}
{% endif %}

{% assign skip = false %}


{% comment %} Liquid procedures
   ------------------------------------------------------------ {% endcomment %}


{% comment %} Main
   ------------------------------------------------------------ {% endcomment %}

  <div id="word-cloud" class="row ml-2 mr-3">
    <div class="card tagbox raised-z5 mt-0 mb-5">
      <div class="tag-cloud">

        {% unless word_list %}
          {% assign word_list = 'empty wordlist' %}
          <div class="content"><b>Cannot create word cloud. <span class="color-red">EMPTY or INVALID word cloud specified: <i>{{word_list}}</i></span></b></div>
        {% else  %}
          <ul class="content">
            {% if source == 'categories' %}
            {% for tag in word_array %}
              {% for skip_word in skip_word_array %}
                {% if tag == skip_word %} {% assign skip = true %} {% else %} {% assign skip = false %} {% endif %}
              {% endfor %}
              {% if skip %} {% continue %} {% endif %}
              <li>
                <a class="toc-link" href="#{{tag|slugify}}">
                  {{ tag | capitalize }}
                  <span>{{ site.categories[tag] | size }}</span>
                </a>
              </li>
            {% endfor %}
            {% elsif source == 'tags' %}
              {% for tag in word_array %}

                {% for skip_word in skip_word_array %}
                  {% if skip_word contains tag %} {% assign skip = true %} {% else %} {% assign skip = false %} {% endif %}
                  {% if skip %} {% break %} {% endif %}
                {% endfor %}

                {% comment %}
                {% assign category = tag|first %}
                {% if category contains 'posts' %} {% assign skip = true %} {% break %} {% else %} {% assign skip = false %} {% endif %}
                {% endcomment %}

                {% if skip %} {% continue %} {% endif %}

                <li>
                  <a class="toc-link" href="#{{ tag | replace: '+','_' | replace: ' ','_' | downcase }}">
                    {{ tag }}
                    <span>{{ site.tags[tag] | size }}</span>
                  </a>
                </li>
              {% endfor %}
            {% else %}
              {% unless source %} {% assign source = 'wrong parameter or missing' %} {% endunless %}
              <b>Cannot create word cloud. <span class="color-red">Unknown SOURCE of word cloud specified: <i>{{source}}</i></span></b>
            {% endif %}
          </ul>
        {% endunless %}

      </div> <!-- end tag-cloud -->
    </div><!-- end card -->
  </div><!-- end row -->