Files
core/src/Payment/Pipelines/Cart/ApplyPaymentMethodFee.php
T

50 lines
1.8 KiB
PHP

<?php
namespace Modules\Core\Payment\Pipelines\Cart;
use Closure;
use Lunar\Base\ValueObjects\Cart\ShippingBreakdownItem;
use Lunar\DataTypes\Price;
use Lunar\Models\Contracts\Cart as CartContract;
use Modules\Core\Payment\Models\PaymentMethod;
final class ApplyPaymentMethodFee
{
/**
* Called just before cart totals are calculated, right after
* Lunar\Pipelines\Cart\ApplyShipping. Generic across every
* Modules\Core\Payment\Models\PaymentMethod row, not just cash on
* delivery — whichever type the shopper picked (Cart::meta
* ['payment_method']), its own `data.fee` (set via the Filament "Edit
* fee" action) is applied if present, no matter its slug/name/driver.
*
* Must add the fee as its own Lunar\Base\ValueObjects\Cart\
* ShippingBreakdownItem on $cart->shippingBreakdown rather than
* bumping $cart->shippingTotal directly — the later Lunar\Pipelines\
* Cart\CalculateTax step unconditionally recomputes shippingTotal
* (and shipping tax) from shippingBreakdown's item sum, so a value
* set only on the plain property is silently discarded before the
* cart finishes calculating.
*
* @param Closure(CartContract): mixed $next
*/
public function handle(CartContract $cart, Closure $next): mixed
{
$type = $cart->meta['payment_method'] ?? null;
if ($type) {
$fee = (int) (PaymentMethod::where('type', $type)->first()?->data['fee'] ?? 0);
if ($fee > 0) {
$cart->shippingBreakdown->items->put('payment-method-fee', new ShippingBreakdownItem(
name: 'Payment method fee',
identifier: 'payment-method-fee',
price: new Price($fee, $cart->currency, 1),
));
}
}
return $next($cart);
}
}