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