rename to core

core/racing/application/ports/IPaymentGateway.ts

@@ -0,0 +1,48 @@
+/**
+ * Application Port: IPaymentGateway
+ * 
+ * Defines interface for payment processing.
+ * Infrastructure will provide mock or real implementation.
+ */
+
+import type { Money } from '../../domain/value-objects/Money';
+
+export interface PaymentResult {
+  success: boolean;
+  transactionId?: string;
+  error?: string;
+  timestamp: Date;
+}
+
+export interface RefundResult {
+  success: boolean;
+  refundId?: string;
+  error?: string;
+  timestamp: Date;
+}
+
+export interface IPaymentGateway {
+  /**
+   * Process a payment
+   */
+  processPayment(
+    amount: Money,
+    payerId: string,
+    description: string,
+    metadata?: Record<string, unknown>
+  ): Promise<PaymentResult>;
+
+  /**
+   * Refund a payment
+   */
+  refund(
+    originalTransactionId: string,
+    amount: Money,
+    reason: string
+  ): Promise<RefundResult>;
+
+  /**
+   * Verify payment status
+   */
+  verifyPayment(transactionId: string): Promise<PaymentResult>;
+}