/**
* Prepares a message based on parameters;
*
* This hook is called from MailManagerInterface->mail(). Note that hook_mail(),
* unlike hook_mail_alter(), is only called on the $module argument to
* MailManagerInterface->mail(), not all modules.
*
* @param $key
* An identifier of the mail.
* @param $message
* An array to be filled in. Elements in this array include:
* - id: An ID to identify the mail sent. Look at module source code or
* MailManagerInterface->mail() for possible id values.
* - to: The address or addresses the message will be sent to. The
* formatting of this string must comply with RFC 2822.
* - subject: Subject of the email to be sent. This must not contain any
* newline characters, or the mail may not be sent properly.
* MailManagerInterface->mail() sets this to an empty
* string when the hook is invoked.
* - body: An array of lines containing the message to be sent. Drupal will
* format the correct line endings for you. MailManagerInterface->mail()
* sets this to an empty array when the hook is invoked. The array may
* contain either strings or objects implementing
* \Drupal\Component\Render\MarkupInterface.
* - from: The address the message will be marked as being from, which is
* set by MailManagerInterface->mail() to either a custom address or the
* site-wide default email address when the hook is invoked.
* - headers: Associative array containing mail headers, such as From,
* Sender, MIME-Version, Content-Type, etc.
* MailManagerInterface->mail() pre-fills several headers in this array.
* @param $params
* An array of parameters supplied by the caller of
* MailManagerInterface->mail().
*
* @see \Drupal\Core\Mail\MailManagerInterface::mail()
*/
function hook_mail($key, &$message, $params)
{
$account = $params['account'];
$context = $params['context'];
$variables = array('%site_name' => \Drupal::config('system.site')->get('name'), '%username' => $account->getDisplayName());
if ($context['hook'] == 'taxonomy') {
$entity = $params['entity'];
$vocabulary = Vocabulary::load($entity->id());
$variables += array('%term_name' => $entity->name, '%term_description' => $entity->description, '%term_id' => $entity->id(), '%vocabulary_name' => $vocabulary->label(), '%vocabulary_description' => $vocabulary->getDescription(), '%vocabulary_id' => $vocabulary->id());
}
// Node-based variable translation is only available if we have a node.
if (isset($params['node'])) {
/** @var \Drupal\node\NodeInterface $node */
$node = $params['node'];
$variables += array('%uid' => $node->getOwnerId(), '%url' => $node->url('canonical', array('absolute' => TRUE)), '%node_type' => node_get_type_label($node), '%title' => $node->getTitle(), '%teaser' => $node->teaser, '%body' => $node->body);
}
$subject = strtr($context['subject'], $variables);
$body = strtr($context['message'], $variables);
$message['subject'] .= str_replace(array("\r", "\n"), '', $subject);
$message['body'][] = MailFormatHelper::htmlToText($body);
}
