feat(ADM-018): completed feature

project/src/modules/reviews/infrastructure/pg-order-item-verifier.ts

@@ -0,0 +1,22 @@
+import type pg from 'pg';
+import type { OrderItemVerifier } from '../domain/ports.js';
+
+/**
+ * Verifies that an order item is delivered and owned by the user. Order items
+ * are considered delivered when their order state is DELIVERED.
+ */
+export class PgOrderItemVerifier implements OrderItemVerifier {
+  constructor(private readonly pool: pg.Pool) {}
+
+  async isDeliveredForUser(userId: string, orderItemId: string): Promise<boolean> {
+    const result = await this.pool.query<{ exists: boolean }>(
+      `SELECT EXISTS (
+         SELECT 1 FROM orders_items oi
+         JOIN orders_orders oo ON oo.id = oi.order_id
+         WHERE oi.id = $1 AND oo.user_id = $2 AND oo.state = 'DELIVERED'
+       ) AS exists`,
+      [orderItemId, userId],
+    );
+    return result.rows[0]?.exists ?? false;
+  }
+}