Refactor Account Portal Components and Update Routing

- Further refined the account portal structure by updating existing components and enhancing their functionality.
- Improved routing paths to ensure better navigation and accessibility within the account portal.
- Enhanced user experience by integrating additional features and optimizing existing ones for seamless interaction.

apps/bff/src/modules/orders/services/checkout-session.service.ts

@@ -0,0 +1,64 @@
+import { Inject, Injectable, NotFoundException } from "@nestjs/common";
+import { Logger } from "nestjs-pino";
+import { randomUUID } from "crypto";
+import { CacheService } from "@bff/infra/cache/cache.service.js";
+import type { CheckoutBuildCartRequest, CheckoutCart } from "@customer-portal/domain/orders";
+
+type CheckoutSessionRecord = {
+  request: CheckoutBuildCartRequest;
+  cart: CheckoutCart;
+  createdAt: string;
+  expiresAt: string;
+};
+
+@Injectable()
+export class CheckoutSessionService {
+  private readonly ttlSeconds = 2 * 60 * 60; // 2 hours
+  private readonly keyPrefix = "checkout-session";
+
+  constructor(
+    private readonly cache: CacheService,
+    @Inject(Logger) private readonly logger: Logger
+  ) {}
+
+  async createSession(request: CheckoutBuildCartRequest, cart: CheckoutCart) {
+    const sessionId = randomUUID();
+    const createdAt = new Date();
+    const expiresAt = new Date(createdAt.getTime() + this.ttlSeconds * 1000);
+
+    const record: CheckoutSessionRecord = {
+      request,
+      cart,
+      createdAt: createdAt.toISOString(),
+      expiresAt: expiresAt.toISOString(),
+    };
+
+    const key = this.buildKey(sessionId);
+    await this.cache.set(key, record, this.ttlSeconds);
+
+    this.logger.debug("Checkout session created", { sessionId, expiresAt: record.expiresAt });
+
+    return {
+      sessionId,
+      expiresAt: record.expiresAt,
+    };
+  }
+
+  async getSession(sessionId: string): Promise<CheckoutSessionRecord> {
+    const key = this.buildKey(sessionId);
+    const record = await this.cache.get<CheckoutSessionRecord>(key);
+    if (!record) {
+      throw new NotFoundException("Checkout session not found");
+    }
+    return record;
+  }
+
+  async deleteSession(sessionId: string): Promise<void> {
+    const key = this.buildKey(sessionId);
+    await this.cache.del(key);
+  }
+
+  private buildKey(sessionId: string): string {
+    return `${this.keyPrefix}:${sessionId}`;
+  }
+}