RemoveAdminUser.php

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<?php
 
namespace Elgg\Notifications\Handlers;
 
use Elgg\Database\QueryBuilder;
use Elgg\Notifications\NonConfigurableNotificationEventHandler;
 
class RemoveAdminUser extends NonConfigurableNotificationEventHandler {
    
    protected function recipientIsChangedUser(\ElggUser $recipient): bool {
        return $this->getEventEntity()?->guid === $recipient->guid;
    }
        
    protected function getNotificationSubject(\ElggUser $recipient, string $method): string {
        if ($this->recipientIsChangedUser($recipient)) {
            return elgg_echo('admin:notification:remove_admin:user:subject', [elgg_get_site_entity()->getDisplayName()]);
        }
        
        return elgg_echo('admin:notification:remove_admin:admin:subject', [elgg_get_site_entity()->getDisplayName()]);
    }
    
    protected function getNotificationBody(\ElggUser $recipient, string $method): string {
        $actor = $this->getEventActor();
        if (!$actor instanceof \ElggUser) {
            return parent::getNotificationBody($recipient, $method);
        }
        
        $site = elgg_get_site_entity();
        
        if ($this->recipientIsChangedUser($recipient)) {
            return elgg_echo('admin:notification:remove_admin:user:body', [
                $actor->getDisplayName(),
                $site->getDisplayName(),
                $site->getURL(),
            ]);
        }
        
        $entity = $this->getEventEntity();
        
        return elgg_echo('admin:notification:remove_admin:admin:body', [
            $actor->getDisplayName(),
            $entity?->getDisplayName(),
            $site->getDisplayName(),
            $entity?->getURL(),
        ]);
    }
    
    protected function getNotificationURL(\ElggUser $recipient, string $method): string {
        if ($this->recipientIsChangedUser($recipient)) {
            return '';
        }
        
        return elgg_generate_url('admin', ['segments' => 'users/admins']);
    }
    
    protected function addMuteLink(): bool {
        return false;
    }
    
    public function getSubscriptions(): array {
        $result = parent::getSubscriptions();
        
        $user = $this->getEventEntity();
        if ($user instanceof \ElggUser && _elgg_services()->config->security_notify_user_admin) {
            // add the user to the subscribers
            $result[$user->guid] = ['email'];
        }
        
        if (_elgg_services()->config->security_notify_admins) {
            // add the current site admins to the subscribers
            $admin_batch = elgg_get_admins([
                'limit' => false,
                'wheres' => [
                    function (QueryBuilder $qb, $main_alias) use ($user) {
                        return $qb->compare("{$main_alias}.guid", '!=', $user?->guid, ELGG_VALUE_GUID);
                    },
                ],
                'batch' => true,
            ]);
 
            foreach ($admin_batch as $admin) {
                $result[$admin->guid] = ['email'];
            }
        }
        
        return $result;
    }
}