{% extends "base.html" %}
{% set active_page = "groups" %}
{% block page_title %}Gruppen{% endblock %}
{% block page_sub %}<div class="topbar-sub">{{ groups|length + 1 }} Gruppen · Rechteverwaltung</div>{% endblock %}

{% block content %}

{# Rendert den zweistufigen Rechte-Baum: eine Zeile pro Top-Level-Bereich
   (Geräte/Logs/Einstellungen) mit eigenem "Bereich anzeigen"-Kästchen,
   darunter eingerückt die Unterpunkte mit ihren jeweiligen Einzelrechten.
   readonly=true zeigt nur den aktuellen Stand (Admin/Systemgruppen bzw.
   fehlendes groups.edit), sonst ist der Baum Teil eines <form>. #}
{% macro permission_tree(checked_keys, readonly) %}
  {% for group_key, group in permission_catalog.items() %}
  <div class="permission-area">
    <label class="check-row permission-area-toggle" {% if readonly %}style="cursor:default; color:var(--text-faint);"{% endif %}>
      <input type="checkbox" name="permissions" value="{{ group['view_key'] }}"
             {% if group['view_key'] in checked_keys %}checked{% endif %}
             {% if readonly %}disabled{% endif %}>
      <strong>{{ group['label'] }}</strong>
    </label>
    <div class="permission-area-children">
      {% for child_key, child in group['children'].items() %}
      <div>
        <div class="permission-group-title">{{ child['label'] }}</div>
        <div class="check-list">
          {% for key, label in child['items'].items() %}
          <label class="check-row" {% if readonly %}style="cursor:default; color:var(--text-faint);"{% endif %}>
            <input type="checkbox" name="permissions" value="{{ key }}"
                   {% if key in checked_keys %}checked{% endif %}
                   {% if readonly %}disabled{% endif %}>
            {{ label }}
          </label>
          {% endfor %}
        </div>
      </div>
      {% endfor %}
    </div>
  </div>
  {% endfor %}
{% endmacro %}

<div class="section-head">
  <div>
    <h2 style="font-size:16px;">Gruppen</h2>
    <div class="hint">
      Über Gruppen lassen sich Rechte für jeden Bereich der App granular vergeben.
      Ein Benutzer kann mehreren Gruppen angehören — die Rechte addieren sich. Auf „Rechte“ klicken,
      um eine Gruppe aufzuklappen und die Berechtigungen im Detail zu sehen bzw. zu ändern.
      „Admin“ und „Benutzer“ sind feste Systemgruppen und nicht veränderbar.
    </div>
  </div>
  {% if current_user.has_permission('groups.create') %}
  <button type="button" class="btn btn-primary" data-open-modal="addGroupModal">
    <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round"><path d="M12 5v14M5 12h14"/></svg>
    Neue Gruppe
  </button>
  {% endif %}
</div>

<div class="table-wrap">
  <div style="overflow-x:auto;">
  <table class="data-table" data-sortable>
    <thead><tr>
      <th data-sort-key="name">Gruppe</th>
      <th data-sort-key="members">Mitglieder</th>
      <th style="width:1%;">Aktionen</th>
    </tr></thead>

    <!-- Virtuelle "Admin"-Gruppe: Rechte sind fix (alles), Mitgliedschaft
         wird direkt über is_admin gesteuert. Bleibt beim Sortieren immer
         oben (eigenes <tbody data-sort-pinned>). -->
    <tbody data-sort-pinned>
      <tr>
        <td class="cell-name">Admin <span class="pill admin">Systemrolle</span></td>
        <td class="text-dim">{{ admin_virtual_group.member_names|length }}</td>
        <td>
          <div class="row-actions">
            <button class="icon-btn" title="Rechte anzeigen" onclick="toggleDetail('detail-admin')">
              <svg id="chev-admin" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M6 9l6 6 6-6"/></svg>
            </button>
            <button class="icon-btn" title="Mitglieder verwalten" data-open-modal="adminMembersModal">
              <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><circle cx="9" cy="8" r="3.2"/><path d="M2.5 20c0-3.6 2.9-6 6.5-6s6.5 2.4 6.5 6"/><circle cx="17.5" cy="8.5" r="2.4"/><path d="M15.8 14.2c2.7.3 4.7 2.4 4.7 5.3"/></svg>
            </button>
          </div>
        </td>
      </tr>
      <tr class="group-detail-row hidden" id="detail-admin">
        <td colspan="3">
          {{ permission_tree(admin_virtual_group.permissions, true) }}
          <p class="text-faint" style="font-size:11.5px; margin:12px 0 0;">Admins dürfen immer alles — diese Rechte sind fest und nicht änderbar.</p>
        </td>
      </tr>
    </tbody>

    {% for g in groups %}
    {% set can_edit_this = current_user.has_permission('groups.edit') and not g.is_system %}
    <!-- Jede Gruppe (Haupt- + Detail-Zeile) in einem eigenen <tbody>, damit
         die Sortierung beide Zeilen gemeinsam verschiebt. -->
    <tbody data-sort-name="{{ g.name|lower }}" data-sort-members="{{ g.member_names|length }}">
      <tr>
        <td class="cell-name">
          {{ g.name }}
          {% if g.is_system %}<span class="pill user" style="white-space:nowrap;">Standard</span>{% endif %}
        </td>
        <td class="text-dim">{{ g.member_names|length }}</td>
        <td>
          <div class="row-actions">
            <button class="icon-btn" title="Rechte anzeigen{{ '/bearbeiten' if can_edit_this else '' }}" onclick="toggleDetail('detail-{{ g.id }}')">
              <svg id="chev-{{ g.id }}" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M6 9l6 6 6-6"/></svg>
            </button>
            <button class="icon-btn" title="Mitglieder verwalten" data-open-modal="membersModal{{ loop.index }}">
              <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><circle cx="9" cy="8" r="3.2"/><path d="M2.5 20c0-3.6 2.9-6 6.5-6s6.5 2.4 6.5 6"/><circle cx="17.5" cy="8.5" r="2.4"/><path d="M15.8 14.2c2.7.3 4.7 2.4 4.7 5.3"/></svg>
            </button>
            {% if current_user.has_permission('groups.delete') and not g.is_default and not g.is_system %}
            <form method="post" data-confirm="Gruppe „{{ g.name }}“ wirklich löschen? Mitglieder verlieren die zugehörigen Rechte.">
              <input type="hidden" name="delete_group" value="{{ g.id }}">
              <button type="submit" class="icon-btn" style="color:var(--danger);" title="Löschen">
                <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M3 6h18M8 6V4a2 2 0 012-2h4a2 2 0 012 2v2m3 0l-1 14a2 2 0 01-2 2H7a2 2 0 01-2-2L4 6"/></svg>
              </button>
            </form>
            {% endif %}
          </div>
        </td>
      </tr>
      <tr class="group-detail-row hidden" id="detail-{{ g.id }}">
        <td colspan="3">
          {% if can_edit_this %}
          <form method="post">
            <input type="hidden" name="save_group" value="1">
            <input type="hidden" name="permissions_submitted" value="1">
            <input type="hidden" name="group_id" value="{{ g.id }}">
            <input type="hidden" name="name" value="{{ g.name }}">
            {{ permission_tree(g.permissions, false) }}
            <div class="flex" style="justify-content:flex-end; margin-top:16px;">
              <button type="submit" class="btn btn-primary btn-sm">
                <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M20 6L9 17l-5-5"/></svg>
                Rechte speichern
              </button>
            </div>
          </form>
          {% else %}
          {{ permission_tree(g.permissions, true) }}
          {% if g.is_system %}
          <p class="text-faint" style="font-size:11.5px; margin:12px 0 0;">Die Standardgruppe „Benutzer“ ist eine Systemgruppe — ihre Rechte sind fest und nicht änderbar.</p>
          {% endif %}
          {% endif %}
        </td>
      </tr>
    </tbody>
    {% else %}
    <tbody data-sort-pinned>
      <tr class="empty-row"><td colspan="3">Noch keine weiteren Gruppen angelegt.</td></tr>
    </tbody>
    {% endfor %}
  </table>
  </div>
</div>

<!-- Modal: Admin-Mitglieder verwalten -->
<div class="modal-overlay" id="adminMembersModal">
  <div class="modal" style="max-width:380px;">
    <form method="post">
      <input type="hidden" name="assign_admins" value="1">
      <div class="modal-header">
        <h3>Admin-Mitglieder</h3>
        <button type="button" class="modal-close" data-close-modal>&times;</button>
      </div>
      <div class="modal-body">
        <p class="text-faint" style="font-size:11.5px; margin:0 0 12px;">Mindestens ein Admin muss bestehen bleiben.</p>
        <div class="check-list" style="max-height:320px; overflow-y:auto; padding-right:4px;">
          {% for u in all_users_all %}
          <label class="check-row">
            <input type="checkbox" name="members" value="{{ u['id'] }}" {% if u['is_admin'] %}checked{% endif %}>
            {{ u['username'] }}
          </label>
          {% endfor %}
        </div>
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-secondary" data-close-modal>Abbrechen</button>
        <button type="submit" class="btn btn-primary">Speichern</button>
      </div>
    </form>
  </div>
</div>

<!-- Modals: Mitglieder pro Gruppe verwalten -->
{% for g in groups %}
<div class="modal-overlay" id="membersModal{{ loop.index }}">
  <div class="modal" style="max-width:380px;">
    <form method="post">
      <input type="hidden" name="save_group" value="1">
      <input type="hidden" name="members_submitted" value="1">
      <input type="hidden" name="group_id" value="{{ g.id }}">
      <input type="hidden" name="name" value="{{ g.name }}">
      <div class="modal-header">
        <h3>Mitglieder — {{ g.name }}</h3>
        <button type="button" class="modal-close" data-close-modal>&times;</button>
      </div>
      <div class="modal-body">
        <div class="check-list" style="max-height:320px; overflow-y:auto; padding-right:4px;">
          {% for u in all_users %}
          <label class="check-row">
            <input type="checkbox" name="members" value="{{ u['id'] }}" {% if u['id'] in g.members %}checked{% endif %}>
            {{ u['username'] }}
          </label>
          {% else %}
          <p class="text-faint" style="font-size:12px;">Keine Nicht-Admin-Benutzer vorhanden.</p>
          {% endfor %}
        </div>
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-secondary" data-close-modal>Abbrechen</button>
        <button type="submit" class="btn btn-primary">Speichern</button>
      </div>
    </form>
  </div>
</div>
{% endfor %}

<!-- Modal: Neue Gruppe -->
<div class="modal-overlay" id="addGroupModal">
  <div class="modal" style="max-width:380px;">
    <form method="post">
      <div class="modal-header">
        <h3>Neue Gruppe</h3>
        <button type="button" class="modal-close" data-close-modal>&times;</button>
      </div>
      <div class="modal-body">
        <input type="hidden" name="add_group" value="1">
        <div class="field">
          <label>Name</label>
          <input type="text" name="name" required placeholder="z.B. Facility-Team">
          <div class="field-hint">Rechte und Mitglieder werden danach über die Gruppentabelle eingestellt.</div>
        </div>
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-secondary" data-close-modal>Abbrechen</button>
        <button type="submit" class="btn btn-primary">Anlegen</button>
      </div>
    </form>
  </div>
</div>

{% endblock %}

{% block scripts %}
<script>
function toggleDetail(id) {
    const row = document.getElementById(id);
    if (!row) return;
    row.classList.toggle("hidden");
    const chev = document.getElementById(id.replace("detail-", "chev-"));
    if (chev) chev.style.transform = row.classList.contains("hidden") ? "" : "rotate(180deg)";
}
</script>
{% endblock %}