famous-ly4-ev/app-modules/payment/src/Providers/PaymentServiceProvider.php

<?php

namespace Modules\Payment\Providers;

use Illuminate\Support\ServiceProvider;
use Modules\Payment\Enums\PaymentMethod;
use Modules\Payment\Factories\PaymentGatewayFactory;
use Modules\Payment\Gateways\KbzMiniAppGateway;
use Modules\Payment\Models\Payment;
use Modules\Payment\Observers\PaymentObserver;

class PaymentServiceProvider extends ServiceProvider
{
    public function register(): void
    {
        $this->app->singleton(PaymentGatewayFactory::class, function (): PaymentGatewayFactory {
            $factory = new PaymentGatewayFactory;
            $factory->register(PaymentMethod::KbzMiniApp, KbzMiniAppGateway::class);

            return $factory;
        });
    }

    public function boot(): void
    {
        // MarkBookingPaid/MarkBookingRefunded are auto-discovered by
        // internachi/modular's EventsPlugin (any Listeners/*.php with a
        // handle(SomeEvent $event) signature) — registering them here too
        // used to double-dispatch both listeners (see DriverAssigned's
        // BookingServiceProvider for the same fix).
        Payment::observe(PaymentObserver::class);
    }
}