email_nd.module

<?php

/**
 * @file
 * Implements the necessary hooks for message reception error and change domain.
 */

use Drupal\Core\Form\FormStateInterface;

/**
 * Implements hook_form_FORM_ID_alter() for system_cron_settings form.
 */
function email_nd_form_system_cron_settings_alter(array &$form, FormStateInterface &$form_state) {
  $config = \Drupal::config('email_nd.setting');
  /** @var \Drupal\Core\Datetime\DateFormatterInterface $dateFormatter */
  $dateFormatter = \Drupal::service('date.formatter');
  $period_domain = $config->get('period_domain');
  $period_emails = $config->get('period_emails');
  if (!empty($form['cron']['cron_safe_threshold']['#options']) && (!empty($period_domain) || $period_emails)) {
    if (!empty($period_domain)) {
      $form['cron']['cron_safe_threshold']['#options'] += array_map(
        [$dateFormatter, 'format_interval'],
        [3600 * $period_domain]
      );
    }
    if (!empty($period_emails)) {
      $form['cron']['cron_safe_threshold']['#options'] += array_map(
        [$dateFormatter, 'format_interval'],
        [3600 * $period_emails]
      );
    }
    ksort($form['cron']['cron_safe_threshold']['#options']);
    reset($form['cron']['cron_safe_threshold']['#options']);
  }
}

/**
 * Implements hook_cron().
 */
function email_nd_cron() {
  $config = \Drupal::configFactory()->getEditable('email_nd.setting');
  $activate_domain = $config->get('activate_domain');
  $activate_error = $config->get('activate_error');
  if (!empty($activate_domain) || !empty($activate_error)) {
    $module_cron_last = $config->get('cron_last');
    if (empty($module_cron_last)) {
      $config->set('cron_last', time())->save();
      email_nd_check_errors();
      email_nd_check_domain();
    }
    else {
      $p_domain = $config->get('period_domain');
      $p_error = $config->get('period_emails');
      if (!empty($module_cron_last) && (!empty($p_domain) || !empty($p_error))) {
        $end = date('Y-m-d H:i:s', $module_cron_last);
        $begin = new DateTime($end);
        if (!empty($begin) && is_object($begin)) {
          $begin_domain = $begin->modify('+' . $p_domain . ' minute');
          $begin_error = $begin->modify('+' . $p_error . ' minute');
          if (!empty($begin_domain->date)) {
            $start_date_domain = $begin_domain->date;
          }
          if (!empty($begin_error->date)) {
            $start_date_error = $begin_error->date;
          }
        }
        else {
          $start_date_domain = date(
            'Y-m-d H:i:s',
            $module_cron_last + $p_domain * 3600
          );
          $start_date_error = date(
            'Y-m-d H:i:s',
            $module_cron_last + $p_error * 3600
          );
        }
        if (!empty($start_date_error) && !empty($activate_error)) {
          email_nd_run_newsletter($start_date_error, 'e');
        }
        if (!empty($start_date_domain) && !empty($activate_domain)) {
          email_nd_run_newsletter($start_date_domain, 'd');
        }
      }
    }
  }
}

/**
 * Implements functionality reset message domain.
 */
function email_nd_check_domain() {
  global $base_root;
  $config = \Drupal::config('email_nd.setting');
  $emails_list = $config->get('emails_list_domain');
  $list_domain = $config->get('list_domain');
  $site_domains_array = [
    $base_root,
    preg_replace('/https*\:\/\/(www.)?/i', '', $base_root),
  ];
  if (!empty($emails_list) && !empty($list_domain) && !empty($site_domains_array)) {
    $isset_domain = array_intersect($list_domain, $site_domains_array);
    if (empty($isset_domain)) {
      $emails_count = count($emails_list);
      if ($emails_count >= 1) {
        /** @var \Drupal\Core\Language\LanguageDefault $languageDefault */
        $languageDefault = \Drupal::service('language.default')->get();
        for ($count = 0; $count < $emails_count; $count++) {
          $email = $emails_list[$count];
          if (!empty($email) && !empty($languageDefault)) {
            /** @var \Drupal\Core\Mail\MailManager $mail_manager */
            $mail_manager = \Drupal::service('plugin.manager.mail');
            $mail_manager->mail(
              'system',
              'mail',
              $email,
              $languageDefault->getId(),
              [
                'context' => [
                  'subject' => t('Change domain (@domain)', ['@domain' => $base_root]),
                  'message' => t('Domain resource changed to - @domain', ['@domain' => $base_root]),
                ],
              ]
            );
          }
        }
      }
    }
  }
}

/**
 * Implements functionality notification errors.
 */
function email_nd_check_errors() {
  global $base_root;
  $bugs = \Drupal::database()->select('watchdog', 'w');
  $bugs->fields('w', ['wid', 'message', 'variables', 'severity', 'timestamp']);
  $group = $bugs->orConditionGroup()
    ->condition('type', 'php')
    ->condition('type', 'email');
  $bugs->condition($group);
  $bugs->orderBy('w.timestamp', 'DESC');
  $result = $bugs->execute()->fetchAll();
  if (!empty($result)) {
    foreach ($result as $value) {
      $bugs_array[] = trim(t($value->message, unserialize($value->variables)));
    }
  }
  if (!empty($bugs_array)) {
    $bugs_array = array_unique($bugs_array);
    $text_message = implode("\n\n", $bugs_array);
    if (!empty($text_message)) {
      $text_message = strip_tags($text_message);
    }
  }
  $emails_array = \Drupal::config('email_nd.setting')->get('emails_list_error');
  if (!empty($emails_array) && !empty($text_message)) {
    $emails_count = count($emails_array);
    if ($emails_count >= 1) {
      /** @var \Drupal\Core\Language\LanguageDefault $languageDefault */
      $languageDefault = \Drupal::service('language.default')->get();
      for ($count = 0; $count < $emails_count; $count++) {
        $email = $emails_array[$count];
        if (!empty($email) && !empty($languageDefault)) {
          /** @var \Drupal\Core\Mail\MailManager $mail_manager */
          $mail_manager = \Drupal::service('plugin.manager.mail');
          $mail_manager->mail(
            'system',
            'mail',
            $email,
            $languageDefault->getId(),
            [
              'context' => [
                'subject' => t(
                  'Errors resource: @domain',
                  ['@domain' => $base_root]
                ),
                'message' => $text_message,
              ],
            ]
          );
        }
      }
    }
  }
}

/**
 * Check availability startup functional module.
 *
 * @param int $start_date
 *   Timestamp.
 * @param string $qualifier
 *   Indicator.
 */
function email_nd_run_newsletter($start_date, $qualifier) {
  if (!empty($start_date) && $start_date <= date('Y-m-d H:i:s', (time()))) {
    \Drupal::configFactory()->getEditable('email_nd.setting')
      ->set('cron_last', time())
      ->save();
    if ($qualifier == 'e') {
      email_nd_check_errors();
    }
    if ($qualifier == 'd') {
      email_nd_check_domain();
    }
  }
}