ladill-frontdesk/app/Services/Frontdesk/NotificationPreferenceService.php

<?php

namespace App\Services\Frontdesk;

use App\Models\Organization;

class NotificationPreferenceService
{
    /** @return list<string> */
    public function channelsForEvent(Organization $organization, string $event): array
    {
        if (! $this->isEventEnabled($organization, $event)) {
            return [];
        }

        return array_values(array_filter(
            $organization->settings['notification_channels'] ?? ['email'],
            fn (string $channel) => in_array($channel, array_keys(config('frontdesk.notification_channels', [])), true),
        ));
    }

    public function isEventEnabled(Organization $organization, string $event): bool
    {
        $events = $organization->settings['notification_events']
            ?? config('frontdesk.default_notification_events', []);

        return (bool) ($events[$event] ?? true);
    }
}