/**
* Sync a notification so that it is visible to the specified users, and not
* visible to anyone else. If it is being made visible for the first time,
* attempt to send the user an email.
*
* @param \Flarum\Core\Notifications\NotificationInterface $notification
* @param \Flarum\Core\Models\User[] $users
* @return void
*/
public function sync(NotificationInterface $notification, array $users)
{
$attributes = ['type' => $notification::getType(), 'sender_id' => $notification->getSender()->id, 'subject_id' => $notification->getSubject()->id, 'data' => ($data = $notification->getData()) ? json_encode($data) : null];
$toDelete = Notification::where($attributes)->get();
$toUndelete = [];
$newRecipients = [];
foreach ($users as $user) {
$existing = $toDelete->where('user_id', $user->id)->first();
if (($k = $toDelete->search($existing)) !== false) {
$toUndelete[] = $existing->id;
$toDelete->pull($k);
} elseif (!$this->onePerUser || !in_array($user->id, $this->sentTo)) {
$newRecipients[] = $user;
$this->sentTo[] = $user->id;
}
}
if (count($toDelete)) {
Notification::whereIn('id', $toDelete->lists('id'))->update(['is_deleted' => true]);
}
if (count($toUndelete)) {
Notification::whereIn('id', $toUndelete)->update(['is_deleted' => false]);
}
if (count($newRecipients)) {
$now = Carbon::now('utc')->toDateTimeString();
Notification::insert(array_map(function ($user) use($attributes, $notification, $now) {
return $attributes + ['user_id' => $user->id, 'time' => $now];
}, $newRecipients));
foreach ($newRecipients as $user) {
if ($user->shouldEmail($notification::getType())) {
$this->mailer->send($notification, $user);
}
}
}
}