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Task/piwoo 473 refactor payments api #969

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@mmaymo mmaymo commented Dec 17, 2024

Handles PIWOO-473
It also adds the payment-gateway library and refactors part of the code base into new classes and folders

@mmaymo mmaymo requested a review from Biont December 17, 2024 07:54
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The actual payment gateway library is not present in this branch, right?

@@ -47,7 +50,7 @@ public function maybeDisableMealVoucherGateway(?array $gateways): array
}
$mealVoucherGatewayIndex = false;
foreach ($gateways as $key => $gateway) {
if (!($gateway instanceof MolliePaymentGateway)) {
if (!($gateway instanceof PaymentGateway)) {
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I believe it would be wiser to match against a list of $gateway->id here.
The instanceof check might cause trouble if mollie is used among another gateway that uses our library.

@@ -25,7 +25,7 @@
use WC_Payment_Gateway;
use WP_Error;

class MolliePaymentGateway extends WC_Payment_Gateway implements MolliePaymentGatewayI
class MolliePaymentGatewayHandler extends WC_Payment_Gateway implements MolliePaymentGatewayI
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From what I gather, you no longer need to extend WC_Payment_Gateway here, right? This class is being reduced to "a bucket of utility functions" that are in the process of being refactored to a more fitting place...?

In other words, this is no longer acting as a payment gateway by itself..?
Just for my understanding :)

$amount,
$reason
);
return $this->refundProcessor->process_refund($order_id, $amount, $reason);
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$this->refundProcessor is never set and RefundProcessorInterface does not have a process_refund method, but a refundOrderPayment.

It also seems to contradict my earlier question about whether this is now a utility class (if it actively carries out refunds instead of aiding with it I mean)

Is this dead code?

use Psr\Container\ContainerInterface;
use Psr\Log\LoggerInterface as Logger;

class OldGatewayBuilder
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Can you explain how this interacts with the payment gateway library?
It is used by the gateway.instances service (as opposed to the payment_gateways service).
If I am still correct in my assumption that MolliePaymentGatewayI is mostly defining a "common toolbox until everything is refactored", then it might make sense to avoid confusion in the service/classnames.

Perhaps a __deprecated.gateway_helpers => fn() => new DeprecatedGatewayHelper()` would work wonders giving clarity about the nature of things and the intent behind them.

In two years, it might be hard to dissect that this is a middle step during refactoring.

@@ -26,7 +27,7 @@
use Mollie\WooCommerce\PaymentMethods\Constants;
use WC_Order;

class MollieSubscriptionGateway extends MolliePaymentGateway
class MollieSubscriptionGatewayHandler extends MolliePaymentGatewayHandler
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This looks a little dangerous to me

This class implements WC_Payment_Gateway and sets up required hooks for $this->scheduled_subscription_payment() and others.

Some of these contain calls to the parent:: method, for example process_subscription_payment and process_payment

As a consequence, these methods do not go through the service locator and the API of the payment gateway library, but rather through the (assumed deprecated) old implementation. Am I seeing this correctly?

Maybe this is all dead code (the WC_Payment_Gateway methods I mean) that you haven't removed yet, though. Removing this in the next step would help me see clearer.

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2 participants