{#
  Data groups on the library pages. Import `with context`: both macros read
  `several_groups`, `data_groups`, `group_names` and `may_move_groups`, which
  `api/library.py:_groups` puts on every library page.

  Nothing here appears on an instance with one group, so a library that never
  uses groups looks exactly as it always did.
#}

{# Which group a row is in, as a badge. Only when there is a choice to see. #}
{% macro group_chip(row) -%}
  {%- if several_groups -%}
  <span class="badge" title="{{ t('Data group') }}">{{ group_names.get(row.data_group_id or 'default', '') }}</span>
  {%- endif -%}
{%- endmacro %}

{#
  The group a new record goes into, or the one an existing record is in.

  A new record may go into any group this person can use: it is theirs, and
  choosing where it lives is choosing which providers may read it. Moving one
  that exists is `data.manage`, because that changes what a provider has
  already been able to see. Every slot is emitted even when one is empty, so a
  field row lines up by construction.
#}
{% macro group_field(row=None, chosen="") -%}
  {%- if several_groups -%}
  {%- set current = (row.data_group_id if row else chosen) or "default" -%}
  <div class="field">
    <label class="field__label" for="data_group_id">{{ t("Data group") }}</label>
    {%- if not row or may_move_groups %}
    <select class="select" id="data_group_id" name="data_group_id">
      {%- for group in data_groups %}
      <option value="{{ group.id }}" {{ 'selected' if group.id == current }}>{{ group.name }}</option>
      {%- endfor %}
    </select>
    {%- else %}
    <input class="input" id="data_group_id" value="{{ group_names.get(current, '') }}" disabled>
    {%- endif %}
    <p class="field__hint">
      {%- if not row -%}
        {{ t("Only models whose connection is in this group can read it.") }}
      {%- elif may_move_groups -%}
        {{ t("Moving it hands it to the other group's models, and takes it away from this group's.") }}
      {%- else -%}
        {{ t("Only models whose connection is in this group can read it. Moving records between groups needs the permission to manage your own data groups.") }}
      {%- endif -%}
    </p>
  </div>
  {%- endif -%}
{%- endmacro %}

{#
  The list filter: a select that submits itself, as a GET so the filtered list
  is a URL. The other filters on the page ride along as hidden fields.
#}
{% macro group_filter(action, current="", keep={}) -%}
  {%- if several_groups -%}
  {#- A compact control rather than a field: the label is for a screen reader,
      because the options ("Every group", the group names) already say what the
      select is for, and a full-width field here outweighed the list below it. #}
  <form method="get" action="{{ action }}" class="btn-row" style="margin-bottom: var(--sp-4)">
    {%- for name, value in keep.items() %}{% if value %}
    <input type="hidden" name="{{ name }}" value="{{ value }}">
    {%- endif %}{% endfor %}
    <label class="visually-hidden" for="group-filter">{{ t("Data group") }}</label>
    <select class="select" id="group-filter" name="group" style="flex: none; width: auto"
            onchange="this.form.submit()">
      <option value="">{{ t("Every group") }}</option>
      {%- for group in data_groups %}
      <option value="{{ group.id }}" {{ 'selected' if group.id == current }}>{{ group.name }}</option>
      {%- endfor %}
    </select>
    <noscript><button class="btn btn--sm" type="submit">{{ t("Show") }}</button></noscript>
  </form>
  {%- endif -%}
{%- endmacro %}