init

2026-08-28 17:31:02 +02:00
commit 2b30e8bd39
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+import { BadRequestException, Injectable } from '@nestjs/common';
+import { InjectRepository } from '@nestjs/typeorm';
+import { randomUUID } from 'node:crypto';
+import { Repository } from 'typeorm';
+import type { CookieCartSummary } from '../../storefrontCart/types/CookieCartSummary';
+import { deriveCheckoutSessionState } from '../../../utils/checkout/deriveCheckoutSessionState';
+import { InvoiceReason } from '../../payment/types/InvoiceReason';
+import { InvoiceService } from '../../payment/services/InvoiceService';
+import { PaymentMethod } from '../../payment/types/PaymentMethod';
+import { CheckoutSessionDiscount } from '../entities/CheckoutSessionDiscount';
+import { CheckoutSessionLine } from '../entities/CheckoutSessionLine';
+import { CheckoutSession } from '../entities/CheckoutSession';
+
+@Injectable()
+export class CheckoutSessionService {
+    constructor(
+        @InjectRepository(CheckoutSession)
+        private readonly sessionRepo: Repository<CheckoutSession>,
+        @InjectRepository(CheckoutSessionLine)
+        private readonly lineRepo: Repository<CheckoutSessionLine>,
+        @InjectRepository(CheckoutSessionDiscount)
+        private readonly discountRepo: Repository<CheckoutSessionDiscount>,
+        private readonly invoiceService: InvoiceService
+    ) {}
+
+    async findById(id: string): Promise<CheckoutSession | null> {
+        return this.sessionRepo.findOne({
+            where: { id },
+            relations: ['lines', 'discounts', 'invoice', 'invoice.moneroDetails', 'invoice.payments']
+        });
+    }
+
+    async createFromCartSummary(summary: CookieCartSummary): Promise<CheckoutSession> {
+        if (summary.cartExtended.length === 0) {
+            throw new BadRequestException('Your cart is empty');
+        }
+
+        if (summary.hasIssues) {
+            throw new BadRequestException('Resolve cart issues before paying');
+        }
+
+        const sessionId = randomUUID();
+
+        const invoice = await this.invoiceService.issueInvoice({
+            paymentMethod: PaymentMethod.Xmr,
+            reason: InvoiceReason.Checkout,
+            contextId: sessionId,
+            amountFiat: summary.cartTotalPrice
+        });
+
+        const lines = summary.cartExtended.map(line =>
+            this.lineRepo.create({
+                variantId: line.id,
+                productId: line.productId,
+                productTitle: line.productTitle,
+                variantTitle: line.title,
+                thumbnailUrl: line.thumbnailUrl,
+                qty: line.qty,
+                unitPriceFiat: line.price,
+                lineSubtotalFiat: line.lineSubtotal,
+                deliveryMode: line.deliveryMode
+            })
+        );
+
+        const discounts = summary.discounts
+            .filter(d => d.amount !== null && d.amount > 0 && !d.issueMessage)
+            .map(d =>
+                this.discountRepo.create({
+                    code: d.code,
+                    amountFiat: d.amount!
+                })
+            );
+
+        const session = this.sessionRepo.create({
+            id: sessionId,
+            invoice,
+            lines,
+            discounts
+        });
+
+        return this.sessionRepo.save(session);
+    }
+
+    async cancelSession(sessionId: string): Promise<void> {
+        const session = await this.sessionRepo.findOne({
+            where: { id: sessionId },
+            relations: ['invoice', 'invoice.moneroDetails', 'invoice.payments']
+        });
+
+        if (!session) {
+            return;
+        }
+
+        const { isOpenForPayment } = deriveCheckoutSessionState(session);
+
+        if (!isOpenForPayment) {
+            return;
+        }
+
+        await this.sessionRepo.update(session.id, { cancelledAt: new Date() });
+    }
+}