{% extends "base.html" %}
{% block title %}Zálohování — MedCover{% endblock %}

{% block content %}
<div class="d-flex justify-content-between align-items-center mb-3">
  <h2 class="mb-0">Zálohování a obnovení</h2>
  <a href="{{ url_for('admin.index') }}" class="btn btn-outline-secondary btn-sm">← Administrace</a>
</div>

{# ── Backup files list ──────────────────────────────────────────────────── #}
<div class="card mb-4">
  <div class="card-header d-flex justify-content-between align-items-center">
    <span class="fw-semibold">Uložené zálohy</span>
    {% if current_user.has_permission("backup.run") %}
    <form method="post" action="{{ url_for('backup.run_backup') }}">
      <input type="hidden" name="csrf_token" value="{{ csrf_token() }}">
      <button type="submit" class="btn btn-primary btn-sm">▶ Vytvořit zálohu nyní</button>
    </form>
    {% endif %}
  </div>
  <div class="card-body p-0">
    {% if backups %}
    <table class="table table-sm table-hover mb-0">
      <thead class="table-light">
        <tr>
          <th>Soubor</th>
          <th>Velikost</th>
          <th>Vytvořeno</th>
          <th class="text-end">Akce</th>
        </tr>
      </thead>
      <tbody>
        {% for b in backups %}
        <tr>
          <td class="font-monospace small">{{ b.name }}</td>
          <td class="text-muted small">{{ (b.size_bytes / 1024) | cznum }} KB</td>
          <td class="text-muted small">{{ b.created_at | localdt }}</td>
          <td class="text-end">
            {% if current_user.has_permission("backup.download") %}
            <a href="{{ url_for('backup.download', filename=b.name) }}"
               class="btn btn-outline-secondary btn-sm me-1">⬇ Stáhnout</a>
            {% endif %}
            {% if current_user.has_permission("backup.restore") %}
            <button type="button" class="btn btn-outline-danger btn-sm"
                    data-bs-toggle="modal"
                    data-bs-target="#restoreModal"
                    data-filename="{{ b.name }}">
              ↺ Obnovit
            </button>
            {% endif %}
            {% if current_user.has_permission("backup.delete") %}
            <button type="button" class="btn btn-danger btn-sm ms-1"
                    data-bs-toggle="modal"
                    data-bs-target="#deleteModal"
                    data-filename="{{ b.name }}">
              🗑 Smazat
            </button>
            {% endif %}
          </td>
        </tr>
        {% endfor %}
      </tbody>
    </table>
    {% else %}
    <div class="p-3 text-muted">Žádné zálohy zatím neexistují.</div>
    {% endif %}
  </div>
  <div class="card-footer text-muted small">
    Adresář záložních souborů: <code>{{ backup_dir }}</code>
    &nbsp;·&nbsp; Uchováváno max. <strong>{{ settings.backup_keep_count }}</strong> souborů
  </div>
</div>

{# ── Upload & restore ───────────────────────────────────────────────────── #}
{% if current_user.has_permission("backup.restore") %}
<div class="card mb-4">
  <div class="card-header fw-semibold">Nahrát zálohu ze souboru</div>
  <div class="card-body">
    <p class="text-muted small mb-3">
      Nahrajte záložní soubor <code>.zip</code> vytvořený touto aplikací.
      Všechna stávající data budou přepsána.
    </p>
    <form method="post" action="{{ url_for('backup.upload_restore') }}"
          enctype="multipart/form-data"
          id="uploadRestoreForm">
      <input type="hidden" name="csrf_token" value="{{ csrf_token() }}">
      <div class="mb-3">
        <label class="form-label" for="backup_file">Soubor zálohy (.zip)</label>
        <input type="file" class="form-control" id="backup_file" name="backup_file"
               accept=".zip" required>
      </div>
      <div class="mb-3">
        <label class="form-label" for="upload_confirmation">
          Pro potvrzení napište <strong>RESTORE</strong>
        </label>
        <input type="text" class="form-control" id="upload_confirmation"
               name="confirmation" placeholder="RESTORE" autocomplete="off" required>
      </div>
      <button type="submit" class="btn btn-danger"
              data-confirm="Opravdu chcete přepsat všechna data? Tato akce je nevratná.">
        ↺ Nahrát a obnovit
      </button>
    </form>
  </div>
</div>
{% endif %}

{# ── Backup settings ────────────────────────────────────────────────────── #}
{% if current_user.has_permission("admin.manage_settings") %}
<div class="card mb-4">
  <div class="card-header fw-semibold">Nastavení zálohování</div>
  <div class="card-body">
    <form method="post" action="{{ url_for('backup.save_settings') }}">
      <input type="hidden" name="csrf_token" value="{{ csrf_token() }}">
      <div class="row g-3">

        <div class="col-md-6">
          <label class="form-label" for="backup_dir">Adresář zálohy</label>
          <input type="text" class="form-control" id="backup_dir" name="backup_dir"
                 value="{{ settings.backup_dir }}" required>
          <div class="form-text">Relativní k adresáři projektu nebo absolutní cesta.</div>
        </div>

        <div class="col-md-3">
          <label class="form-label" for="backup_keep_count">Počet uchovávaných záloh</label>
          <input type="number" class="form-control" id="backup_keep_count"
                 name="backup_keep_count" min="1" max="365"
                 value="{{ settings.backup_keep_count }}" required>
        </div>

        <div class="col-md-3 d-flex align-items-end">
          <div class="form-check pb-2">
            <input class="form-check-input" type="checkbox" id="backup_schedule_enabled"
                   name="backup_schedule_enabled"
                   {% if settings.backup_schedule_enabled %}checked{% endif %}>
            <label class="form-check-label" for="backup_schedule_enabled">
              Automatické denní zálohování
            </label>
          </div>
        </div>

        <div class="col-md-3">
          <label class="form-label" for="backup_schedule_hour">
            Hodina spuštění (0–23, UTC)
          </label>
          <input type="number" class="form-control" id="backup_schedule_hour"
                 name="backup_schedule_hour" min="0" max="23"
                 value="{{ settings.backup_schedule_hour }}" required>
        </div>

      </div>
      <div class="mt-3">
        <button type="submit" class="btn btn-primary btn-sm">Uložit nastavení</button>
      </div>
    </form>
  </div>
</div>
{% endif %}

{# ── Restore confirmation modal ──────────────────────────────────────────── #}
{% if current_user.has_permission("backup.restore") %}
<div class="modal fade" id="restoreModal" tabindex="-1" aria-labelledby="restoreModalLabel" aria-hidden="true">
  <div class="modal-dialog">
    <div class="modal-content">
      <form method="post" id="restoreForm" action="">
        <input type="hidden" name="csrf_token" value="{{ csrf_token() }}">
        <div class="modal-header border-danger">
          <h5 class="modal-title text-danger" id="restoreModalLabel">⚠ Obnovení zálohy</h5>
          <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
        </div>
        <div class="modal-body">
          <p>
            Chystáte se obnovit databázi ze zálohy
            <strong id="restoreFilename" class="font-monospace"></strong>.
          </p>
          <p class="text-danger fw-semibold">
            Všechna stávající data budou nevratně smazána a nahrazena obsahem zálohy.
          </p>
          <div class="mb-3">
            <label class="form-label" for="restore_confirmation">
              Pro potvrzení napište <strong>RESTORE</strong>
            </label>
            <input type="text" class="form-control" id="restore_confirmation"
                   name="confirmation" placeholder="RESTORE" autocomplete="off" required>
          </div>
        </div>
        <div class="modal-footer">
          <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Zrušit</button>
          <button type="submit" class="btn btn-danger">↺ Obnovit databázi</button>
        </div>
      </form>
    </div>
  </div>
</div>

{% endif %}

{# ── Delete confirmation modal ────────────────────────────────────────────── #}
{% if current_user.has_permission("backup.delete") %}
<div class="modal fade" id="deleteModal" tabindex="-1" aria-labelledby="deleteModalLabel" aria-hidden="true">
  <div class="modal-dialog">
    <div class="modal-content">
      <form method="post" id="deleteForm" action="">
        <input type="hidden" name="csrf_token" value="{{ csrf_token() }}">
        <div class="modal-header border-danger">
          <h5 class="modal-title text-danger" id="deleteModalLabel">🗑 Smazat zálohu</h5>
          <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
        </div>
        <div class="modal-body">
          <p>
            Chystáte se smazat záložní soubor
            <strong id="deleteFilename" class="font-monospace"></strong>.
          </p>
          <p class="text-danger fw-semibold">Tato akce je nevratná.</p>
          <div class="mb-3">
            <label class="form-label" for="delete_confirmation">
              Pro potvrzení napište <strong>SMAZAT</strong>
            </label>
            <input type="text" class="form-control" id="delete_confirmation"
                   name="confirmation" placeholder="SMAZAT" autocomplete="off" required>
          </div>
        </div>
        <div class="modal-footer">
          <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Zrušit</button>
          <button type="submit" class="btn btn-danger">🗑 Smazat zálohu</button>
        </div>
      </form>
    </div>
  </div>
</div>

{% endif %}

{% endblock %}
{% block extra_scripts %}
<script src="{{ url_for('static', filename='js/backup.js') }}"></script>
{% endblock %}