cattr-app/server-application

use Illuminate\Bus\Queueable;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Mail\Mailable;
use Illuminate\Queue\SerializesModels;

class UserCreated extends Mailable implements ShouldQueue
{
    use Queueable;
    use SerializesModels;

    public string $login;
    public string $password;
    public $url;

    public function __construct($login, $password)
    {
        $this->login = $login;
        $this->password = $password;
        $this->url = config('app.frontend_url');
    }

    public function build(): self
    {
        return $this->markdown('emails.invite');
    }
}

use App\Mail\UserCreated;
use App\Models\User;
use Mail;
use Illuminate\Support\Str;
use Settings;

class UserObserver
{
    public function creating(User $user): void
    {
        if (!$user->password || request('send_invite')) {
            $password = request('password') ?? Str::random();

            $user->password = $password;
            $user->invitation_sent = true;

            $language = Settings::scope('core')->get('language', 'en');

            Mail::to($user->email)->locale($language)->send(new UserCreated($user->email, $password));
        }
    }
}