ladill-mini/app/Notifications/Mini/MiniAlertNotification.php

<?php

namespace App\Notifications\Mini;

use Illuminate\Bus\Queueable;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Notifications\Notification;

class MiniAlertNotification extends Notification implements ShouldQueue
{
    use Queueable;

    /**
     * @param  array<string, mixed>  $extra
     */
    public function __construct(
        private readonly string $title,
        private readonly string $message,
        private readonly string $icon,
        private readonly ?string $url,
        private readonly string $milestone,
        private readonly array $extra = [],
    ) {}

    /** @return list<string> */
    public function via(object $notifiable): array
    {
        return ['database'];
    }

    /** @return array<string, mixed> */
    public function toArray(object $notifiable): array
    {
        return array_merge([
            'title' => $this->title,
            'message' => $this->message,
            'icon' => $this->icon,
            'url' => $this->url,
            'milestone' => $this->milestone,
        ], $this->extra);
    }
}