Feature: Abstraction on Payments based on their operations

src/Payment/Contracts/SupportsPay.php

@@ -0,0 +1,45 @@
+<?php
+
+namespace Modules\Core\Payment\Contracts;
+
+use Modules\Core\Payment\DTOs\PaymentResult;
+
+/**
+ * A driver's atomic charge — authorize and capture in one gateway call
+ * (Mastercard's own "Pay" operation, Nexi's ActionType::PAY(), Stripe's
+ * capture_method=automatic, or an offline driver with no gateway at all).
+ * Distinct from SupportsAuthorization: a driver that only ever settles in
+ * one step implements this and nothing else — there is no separate hold
+ * to later capture() or void().
+ *
+ * Dispatches Modules\Core\Payment\Events\PaymentCaptured or
+ * PaymentCaptureFailed based on the returned PaymentResult's status,
+ * unless $result->status is Pending (an async gateway that hasn't
+ * resolved yet — see HandlesPaymentCallback for how that gets resolved
+ * later, from a separate call this method's return value does not wait
+ * on).
+ */
+interface SupportsPay
+{
+    /**
+     * $type is the payment type key being charged (e.g. 'cash-on-delivery',
+     * 'stripe') — passed through even though most drivers only ever serve
+     * one type, because a driver shared across several types needs it to
+     * look up that type's own config.
+     *
+     * $data carries whatever the gateway needs (amount, currency, customer
+     * details, a payment method token) — the caller's responsibility to
+     * assemble, since a driver has no notion of a cart or order to pull
+     * them from itself.
+     *
+     * $context is opaque to the driver — carried through untouched into
+     * whichever Payment event this call (or a later handleCallback()
+     * resolving it) produces, so the caller can correlate the result back
+     * to whatever it needs, without Payment ever needing to know what
+     * that is.
+     *
+     * @param  array<string, mixed>  $data
+     * @param  array<string, mixed>  $context
+     */
+    public function pay(string $type, array $data, array $context = []): PaymentResult;
+}