{# -*- coding: utf-8 -*-

  This file is part of Invenio.
  Copyright (C) 2017-2019 CERN.

  Invenio is free software; you can redistribute it and/or modify it
  under the terms of the MIT License; see LICENSE file for more details.
#}
{%- macro pid_versions_dropdown(pid, pid_view='invenio_records_ui.recid') %}
{%- set pid_versioning = pid | to_versioning_api -%}
{% if pid_versioning.is_parent %}
  {% set all_versions = pid_versioning.children | list %}
  <div class="dropdown pid-versions-dropdown">
    <ul class="dropdown-menu" aria-labelledby="pid-versions-dropdown">
      {% for pid_version in all_versions | reverse | list %}
        <li class="dropdown-item {{ 'latest' if loop.first else '' }} {{ 'current' if pid_version.id == pid.id else '' }}">
          <a href="{{ url_for(pid_view, pid_value=pid_version.pid_value) }}">Version {{ loop.revindex }} {{ ' (latest)' if loop.first else '' }} </a>
        </li>
      {% endfor %}
    </ul>
{% elif pid_versioning.is_child %}
    {% set parent = pid_versioning.parent | to_versioning_api %}
    {% set pid_version_index = parent.index(pid) %}
    {% set all_versions = parent.children | list %}
    {% set is_latest = [-1] == pid %}
    <button class="btn btn-default dropdown-toggle" type="button" id="pid-versions-dropdown" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
      <div class="dropdown-head {{ 'latest' if is_latest else '' }}">
        Version {{ pid_version_index + 1 }}{{ ' (latest)' if is_latest else '' }}
        <span class="caret"></span>
      </div>
    </button>
  </div>
{% endif %}
{%- endmacro %}