{% assign uri = include.uri  %}

{% assign documents = site.data.annotations | group_by: "uri" %}

{% assign contributors = "" | split: "|" %}
{% assign count_annotations = 0 %}
{% assign count_comments = 0  %}
{% assign count_needs = 0 %}

{% for document in documents %}
{% if document.name contains uri %}

	{% for annotation in document.items %}
		{% assign contributors = contributors | push: annotation.user %}
		
		{% assign current_needs = annotation.tags | where_exp: "t", "t contains 'need:'" | size %}
		{% assign count_needs = count_needs | plus: current_needs %}

	{% endfor %}

	{% assign current_comments = document.items | where_exp: "a", "a.references" | size %}
	{% assign current_annotations = document.items | size %}

	{% assign count_annotations = count_annotations | plus: current_annotations %}
	{% assign count_comments = count_comments | plus: current_comments %}

	{% continue %}
{% endif %}
{% endfor %}

<span><i class="fa fa-user" aria-hidden="true"></i> <span>{{ contributors | uniq | size }}</span></span>
<span><i class="fa fa-pencil" aria-hidden="true"></i> <span>{{ count_annotations }}</span></span>
<span><i class="fa fa-commenting" aria-hidden="true"></i> <span>{{ count_comments  }}</span></span>
<span><i class="fa fa-bell" aria-hidden="true"></i> <span>{{count_needs }}</span></span>