{% extends "templates/base.tpl" %}

{% block title %}Library{% endblock %}

{% set data = query("""
    PREFIX library: <dokk:library:>
    PREFIX license: <dokk:license:>

    CONSTRUCT {
        ?item library:title ?title;
              library:author ?author ;
              library:license ?license .
        ?license license:id ?license_id ;
                 license:name ?license_name .
    }
    WHERE {
        ?item library:title ?title ;
                library:author ?author ;
                library:license ?license .

        OPTIONAL {
        ?license license:id ?license_id_optional ;
                 license:name ?license_name_optional .
        }

        BIND(COALESCE(?license_id_optional, SUBSTR(STR(?license), 14)) AS ?license_id)
        BIND(COALESCE(?license_name_optional, SUBSTR(STR(?license), 14)) AS ?license_name)
    }
    ORDER BY UCASE(?title)
    """,
    {
        '@context': {
            'library': 'dokk:library:',
            'license': 'dokk:license:',
            'library:author': { '@container': '@set' },
            'library:license': { '@container': '@set' }
        },
        'library:title': {}
    })
%}

{% block body %}

<div class="library">

<b>The library is also available via OPDS. Add this link to your OPDS client: https://dokk.org/library/opds.xml</b>
<br /><br /><br />

{% for item in data["@graph"]|sort(attribute="library:title") %}
    <p>
        <div>
            <a href="/library/{{ item['@id'][8:] }}">{{ item['library:title'] }}</a>
        </div>

        <div>
            Authors:
            {% for author in item["library:author"]|sort() %}
                {{ author }}
            {% endfor%}
        </div>

        <div>
            License:
            {% for license in item["library:license"]|sort(attribute="license:id") %}
                {{ license['license:id'] }}
            {% endfor%}
        </div>
    </p>
    <br/><br/>
{% endfor %}
</div>

{% endblock %}