nextcloud_webdav_client-1.0.x-dev/src/Form/NextCloudUserLinkForm.php

<?php

namespace Drupal\nextcloud_webdav_client\Form;

use Drupal\Core\Entity\EntityTypeManagerInterface;
use Drupal\Core\Form\FormBase;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Url;
use Drupal\nextcloud_webdav_client\Service\NextCloudOAuth2Manager;
use Drupal\user\UserInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;

/**
 * Form for users to link their NextCloud account.
 */
class NextCloudUserLinkForm extends FormBase {

  /**
   * The OAuth2 manager service.
   *
   * @var \Drupal\nextcloud_webdav_client\Service\NextCloudOAuth2Manager
   */
  protected $oauth2Manager;

  /**
   * The entity type manager.
   *
   * @var \Drupal\Core\Entity\EntityTypeManagerInterface
   */
  protected $entityTypeManager;

  /**
   * Constructs a NextCloudUserLinkForm object.
   *
   * @param \Drupal\nextcloud_webdav_client\Service\NextCloudOAuth2Manager $oauth2_manager
   *   The OAuth2 manager service.
   * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager
   *   The entity type manager.
   */
  public function __construct(NextCloudOAuth2Manager $oauth2_manager, EntityTypeManagerInterface $entity_type_manager) {
    $this->oauth2Manager = $oauth2_manager;
    $this->entityTypeManager = $entity_type_manager;
  }

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container) {
    return new static(
      $container->get('nextcloud_webdav_client.oauth2_manager'),
      $container->get('entity_type.manager')
    );
  }

  /**
   * {@inheritdoc}
   */
  public function getFormId() {
    return 'nextcloud_user_link_form';
  }

  /**
   * {@inheritdoc}
   */
  public function buildForm(array $form, FormStateInterface $form_state, UserInterface $user = NULL) {
    $config = $this->config('nextcloud_webdav_client.settings');

    // Check if OAuth2 is configured.
    if (!$this->oauth2Manager->isConfigured()) {
      $form['not_configured'] = [
        '#markup' => '<div class="messages messages--warning">' .
          $this->t('NextCloud OAuth2 is not configured yet. Please contact an administrator.') .
          '</div>',
      ];
      return $form;
    }

    // Check if site is in per-user mode.
    $oauth2_mode = $config->get('oauth2_mode') ?: 'site';
    if ($oauth2_mode !== 'per-user') {
      $form['wrong_mode'] = [
        '#markup' => '<div class="messages messages--info">' .
          $this->t('Per-user NextCloud linking is not enabled. The site is using site-wide authentication.') .
          '</div>',
      ];
      return $form;
    }

    /** @var \Drupal\nextcloud_webdav_client\NextCloudUserTokenStorageInterface $storage */
    $storage = $this->entityTypeManager->getStorage('nextcloud_user_token');
    $token_entity = $storage->loadByUser($user);

    if ($token_entity) {
      // User has linked account.
      $form['status'] = [
        '#markup' => '<div class="messages messages--status">' .
          '<strong>' . $this->t('✓ NextCloud Account Linked') . '</strong><br>' .
          $this->t('NextCloud Username: @username', ['@username' => $token_entity->getNextCloudUsername()]) .
          '</div>',
      ];

      $expiry = $token_entity->getTokenExpiry();
      if ($expiry) {
        $expiry_date = \Drupal::service('date.formatter')->format($expiry, 'medium');
        $form['expiry'] = [
          '#markup' => '<p>' . $this->t('Token expires: @date', ['@date' => $expiry_date]) . '</p>',
        ];
      }

      $form['info'] = [
        '#markup' => '<p>' . $this->t('Your NextCloud account is linked and active. File operations will use your personal NextCloud storage.') . '</p>',
      ];

      $form['actions'] = ['#type' => 'actions'];

      $form['actions']['refresh'] = [
        '#type' => 'link',
        '#title' => $this->t('Refresh Token'),
        '#url' => Url::fromRoute('nextcloud_webdav_client.user_oauth2_refresh', ['user' => $user->id()]),
        '#attributes' => ['class' => ['button']],
      ];

      $form['actions']['unlink'] = [
        '#type' => 'link',
        '#title' => $this->t('Unlink Account'),
        '#url' => Url::fromRoute('nextcloud_webdav_client.user_oauth2_unlink', ['user' => $user->id()]),
        '#attributes' => [
          'class' => ['button', 'button--danger'],
          'onclick' => 'return confirm("' . $this->t('Are you sure you want to unlink your NextCloud account?') . '");',
        ],
      ];
    }
    else {
      // User needs to link account.
      $form['not_linked'] = [
        '#markup' => '<div class="messages messages--warning">' .
          $this->t('You have not linked your NextCloud account yet.') .
          '</div>',
      ];

      $form['info'] = [
        '#markup' => '<p>' . $this->t('To use NextCloud file operations, you need to link your NextCloud account. Click the button below to authorize access.') . '</p>',
      ];

      $initiate_url = Url::fromRoute('nextcloud_webdav_client.user_oauth2_initiate');

      $form['actions'] = ['#type' => 'actions'];

      $form['actions']['link'] = [
        '#type' => 'link',
        '#title' => $this->t('Link NextCloud Account'),
        '#url' => $initiate_url,
        '#attributes' => ['class' => ['button', 'button--primary']],
      ];
    }

    return $form;
  }

  /**
   * {@inheritdoc}
   */
  public function submitForm(array &$form, FormStateInterface $form_state) {
    // This form has no submit action, only links.
  }

}