jesse-uxandClaude Code
2f53fa0171
Remove the redundant billing account read, cache packages for one minute, prefetch the billing chunk, and parallelize independent package reads. Co-Authored-By: Claude Code <noreply@anthropic.com>
69 lines
2.2 KiB
TypeScript
69 lines
2.2 KiB
TypeScript
import type { MembershipProduct } from "./membership";
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export const PAYMENT_PACKAGES_CACHE_TTL_MS = 60_000;
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export type PaymentPackagesPayload = Readonly<{
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enabled: boolean;
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packages: MembershipProduct[];
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}>;
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type CacheEntry = Readonly<{
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value: PaymentPackagesPayload;
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fetchedAt: number;
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}>;
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let cache: CacheEntry | null = null;
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let inflight: Promise<PaymentPackagesPayload> | null = null;
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async function loadPaymentPackages(): Promise<PaymentPackagesPayload> {
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const response = await fetch("/api/payment/packages", { cache: "no-store" });
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const payload = await response.json().catch(() => null);
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if (!response.ok || !payload || typeof payload !== "object") {
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throw new Error("套餐支付暂时不可用，请稍后重试");
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}
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const record = payload as { enabled?: unknown; packages?: unknown };
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return {
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enabled: record.enabled === true,
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packages: Array.isArray(record.packages) ? record.packages as MembershipProduct[] : [],
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};
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}
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function refreshPaymentPackages(): Promise<PaymentPackagesPayload> {
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if (inflight) return inflight;
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const request = loadPaymentPackages().then((value) => {
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cache = { value, fetchedAt: Date.now() };
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return value;
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}).finally(() => {
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if (inflight === request) inflight = null;
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});
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inflight = request;
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return request;
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}
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/**
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* Return a fresh package response, or serve the last response while refreshing
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* it in the background after the 60-second freshness window expires.
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*/
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export function fetchPaymentPackages(
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onBackgroundRefresh?: (value: PaymentPackagesPayload) => void,
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): Promise<PaymentPackagesPayload> {
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if (!cache) return refreshPaymentPackages();
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if (Date.now() - cache.fetchedAt < PAYMENT_PACKAGES_CACHE_TTL_MS) {
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return Promise.resolve(cache.value);
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}
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const request = refreshPaymentPackages();
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void request.then((value) => onBackgroundRefresh?.(value)).catch(() => {
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// Stale package data remains usable when a background refresh fails.
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});
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return Promise.resolve(cache.value);
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}
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export function prefetchPaymentPackages(): void {
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void fetchPaymentPackages().catch(() => undefined);
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}
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export function resetPaymentPackagesCacheForTests(): void {
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cache = null;
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inflight = null;
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}
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