feat(payment): connect payment service flow

env-example/.env.development.example

@@ -29,22 +29,3 @@ AUTH_FACEBOOK_SECRET=004b1a9384b3433e153992e5edcef4ad
 # Cloudflare CDN（test / production 部署后刷缓存用）
 CF_ZONE_ID=b1b6bfb7795667609c8e7f418af0156b
 CF_API_TOKEN=cfut_xyHb70XCw0j8f5Wz5fg5PemUQ2ZHnSpWvmrBvVeK94d3b00f
-
-# ─────────────────────────────
-# Stripe 支付（dev 环境 test keys —— **查** https://dashboard.stripe.com/test/apikeys 拿**到**）
-# ─────────────────────────────
-# 服务**端** secret key（**仅** Next.js API route **用**，**不**要**曝**露**给**前**端**）
-STRIPE_SECRET_KEY=sk_test_replace_with_your_dev_secret_key
-# 前**端** publishable key（NEXT_PUBLIC_ 前**缀**才**能**在**前**端**用**）
-NEXT_PUBLIC_STRIPE_PUBLISHABLE_KEY=pk_test_51Te8ybEJDtUGxQHo0UMySJ2hW0vVryynzllmIUI3UQdQCFgxNLci0Jmm2lQkRsTaIP7C7IQlFzfFyBJ5rOhr1ML800G8P8DF5R
-# webhook 签**名**密**钥**（**从** `stripe listen` 输**出**拿**到**，**本**地**开**发**用**）
-STRIPE_WEBHOOK_SECRET=whsec_replace_with_your_stripe_cli_output
-
-# 3 **个**订**阅**套餐**的** Product / Price ID（**从** Stripe dashboard **创**建** 3 **个** Product + 3 **个** Price **后**填**）
-STRIPE_PRODUCT_MONTHLY=prod_replace_monthly
-STRIPE_PRICE_MONTHLY=price_replace_monthly
-STRIPE_PRODUCT_QUARTERLY=prod_replace_quarterly
-STRIPE_PRICE_QUARTERLY=price_replace_quarterly
-STRIPE_PRODUCT_ANNUAL=prod_replace_annual
-STRIPE_PRICE_ANNUAL=price_replace_annual
-

env-example/.env.local.example

@@ -23,18 +23,3 @@ AUTH_FACEBOOK_SECRET=004b1a9384b3433e153992e5edcef4ad
 # Cloudflare CDN（test / production 部署后刷缓存用）
 CF_ZONE_ID=b1b6bfb7795667609c8e7f418af0156b
 CF_API_TOKEN=cfut_xyHb70XCw0j8f5Wz5fg5PemUQ2ZHnSpWvmrBvVeK94d3b00f
-
-# ─────────────────────────────
-# Stripe 支付（test 环境 test keys）
-# ─────────────────────────────
-STRIPE_SECRET_KEY=sk_test_replace_with_your_test_secret_key
-NEXT_PUBLIC_STRIPE_PUBLISHABLE_KEY=pk_test_51Te8ybEJDtUGxQHo0UMySJ2hW0vVryynzllmIUI3UQdQCFgxNLci0Jmm2lQkRsTaIP7C7IQlFzfFyBJ5rOhr1ML800G8P8DF5R
-STRIPE_WEBHOOK_SECRET=whsec_replace_with_your_stripe_cli_output
-
-STRIPE_PRODUCT_MONTHLY=prod_replace_monthly
-STRIPE_PRICE_MONTHLY=price_replace_monthly
-STRIPE_PRODUCT_QUARTERLY=prod_replace_quarterly
-STRIPE_PRICE_QUARTERLY=price_replace_quarterly
-STRIPE_PRODUCT_ANNUAL=prod_replace_annual
-STRIPE_PRICE_ANNUAL=price_replace_annual
-

env-example/.env.production.example

@@ -30,20 +30,3 @@ AUTH_FACEBOOK_SECRET=004b1a9384b3433e153992e5edcef4ad
 # Cloudflare CDN（test / production 部署后刷缓存用）
 CF_ZONE_ID=b1b6bfb7795667609c8e7f418af0156b
 CF_API_TOKEN=cfut_xyHb70XCw0j8f5Wz5fg5PemUQ2ZHnSpWvmrBvVeK94d3b00f
-
-# ─────────────────────────────
-# Stripe 支付（**生**产**环**境** live keys —— **从** https://dashboard.stripe.com/apikeys 拿**到**）
-# **不**要** commit 真**实** key 到**版**本**控**制**
-# ─────────────────────────────
-STRIPE_SECRET_KEY=sk_live_replace_with_your_live_secret_key
-NEXT_PUBLIC_STRIPE_PUBLISHABLE_KEY=pk_test_replace_with_your_dev_publishable_key
-# webhook 签**名**密**钥**（**从** Stripe dashboard / Webhooks **端**点**的** "Signing secret" **拿**到**）
-STRIPE_WEBHOOK_SECRET=whsec_replace_with_your_live_webhook_signing_secret
-
-STRIPE_PRODUCT_MONTHLY=prod_replace_monthly
-STRIPE_PRICE_MONTHLY=price_replace_monthly
-STRIPE_PRODUCT_QUARTERLY=prod_replace_quarterly
-STRIPE_PRICE_QUARTERLY=price_replace_quarterly
-STRIPE_PRODUCT_ANNUAL=prod_replace_annual
-STRIPE_PRICE_ANNUAL=price_replace_annual
-

package.json

@@ -19,7 +19,6 @@
   },
   "dependencies": {
     "@fingerprintjs/fingerprintjs": "^5.2.0",
-    "@stripe/stripe-js": "^9.8.0",
     "@xstate/react": "^5",
     "classnames": "^2.5.1",
     "dexie": "^4.4.3",
@@ -32,7 +31,6 @@
     "react": "19.2.4",
     "react-dom": "19.2.4",
     "react-icons": "^5.6.0",
-    "stripe": "^22.2.1",
     "ua-parser-js": "^2.0.10",
     "unstorage": "^1.17.5",
     "xstate": "^5",

pnpm-lock.yaml

@@ -11,9 +11,6 @@ importers:
       '@fingerprintjs/fingerprintjs':
         specifier: ^5.2.0
         version: 5.2.0
-      '@stripe/stripe-js':
-        specifier: ^9.8.0
-        version: 9.8.0
       '@xstate/react':
         specifier: ^5
         version: 5.0.5(@types/react@19.2.16)(react@19.2.4)(xstate@5.32.0)
@@ -50,9 +47,6 @@ importers:
       react-icons:
         specifier: ^5.6.0
         version: 5.6.0(react@19.2.4)
-      stripe:
-        specifier: ^22.2.1
-        version: 22.2.1(@types/node@20.19.41)
       ua-parser-js:
         specifier: ^2.0.10
         version: 2.0.10
@@ -896,10 +890,6 @@ packages:
   '@standard-schema/spec@1.1.0':
     resolution: {integrity: sha512-l2aFy5jALhniG5HgqrD6jXLi/rUWrKvqN/qJx6yoJsgKhblVd+iqqU4RCXavm/jPityDo5TCvKMnpjKnOriy0w==}
 
-  '@stripe/stripe-js@9.8.0':
-    resolution: {integrity: sha512-DHJpol/98VKyojNSYmpkB5vOMnlf87hPe0wPxyaYTNiTMk5QjKMXDfSZLwGctYIXAgAWDFeRABc8lFAj0BELyw==}
-    engines: {node: '>=12.16'}
-
   '@swc/core-darwin-arm64@1.15.32':
     resolution: {integrity: sha512-/YWMvJDPu+AAwuUsM2G+DNQ/7zhodURGzdQyewEqcvgklAdDHs3LwQmLLnyn6SJl8DT8UOxkbzK+D1PmPeelRg==}
     engines: {node: '>=10'}
@@ -2944,15 +2934,6 @@ packages:
     resolution: {integrity: sha512-6fPc+R4ihwqP6N/aIv2f1gMH8lOVtWQHoqC4yK6oSDVVocumAsfCqjkXnqiYMhmMwS/mEHLp7Vehlt3ql6lEig==}
     engines: {node: '>=8'}
 
-  stripe@22.2.1:
-    resolution: {integrity: sha512-ULAtq25USBEx3yeN5zimEkfYVFETVMP5om25Ryr8ol11P62imaCZLBIEW78T7zm7Wg3wnZi+80S72yf3LCpNhw==}
-    engines: {node: '>=18'}
-    peerDependencies:
-      '@types/node': '>=18'
-    peerDependenciesMeta:
-      '@types/node':
-        optional: true
-
   styled-jsx@5.1.6:
     resolution: {integrity: sha512-qSVyDTeMotdvQYoHWLNGwRFJHC+i+ZvdBRYosOFgC+Wg1vx4frN2/RG/NA7SYqqvKNLf39P2LSRA2pu6n0XYZA==}
     engines: {node: '>= 12.0.0'}
@@ -3989,8 +3970,6 @@ snapshots:
 
   '@standard-schema/spec@1.1.0': {}
 
-  '@stripe/stripe-js@9.8.0': {}
-
   '@swc/core-darwin-arm64@1.15.32':
     optional: true
 
@@ -6236,10 +6215,6 @@ snapshots:
 
   strip-json-comments@3.1.1: {}
 
-  stripe@22.2.1(@types/node@20.19.41):
-    optionalDependencies:
-      '@types/node': 20.19.41
-
   styled-jsx@5.1.6(@babel/core@7.29.7)(react@19.2.4):
     dependencies:
       client-only: 0.0.1

src/app/api/payment/create-checkout-session/route.ts

@@ -1,105 +0,0 @@
-/**
- * POST /api/payment/create-checkout-session
- *
- * 创建 Stripe Checkout Session（订阅模式）→ 返回 URL 给前端
- * 前端接到后 `window.location.href = url` 跳转到 Stripe 托管页
- *
- * 业务流程：
- *   1. 前端用户点 "Confirm the agreement and Activate"
- *   2. 前端 POST `{ planId, successUrl, cancelUrl }` 到本端点
- *   3. 本端调 `stripe.checkout.sessions.create({...})` 创建 session
- *   4. 返回 `{ url: session.url }` 给前端
- *   5. 前端 `window.location.href = url` 跳转
- *   6. Stripe 收银台结束后回跳到 success_url / cancel_url
- *   7. 同时 Stripe 发送 `checkout.session.completed` webhook → 后端设置 user.isVip + voiceMinutes
- */
-import { NextRequest, NextResponse } from "next/server";
-
-import { SUBSCRIPTION_PLANS } from "@/data/constants/subscription-plans";
-import type { SubscriptionPlanId } from "@/data/constants/subscription-plans";
-import { getPlanPriceId } from "@/lib/stripe/stripe-products";
-import { getStripeClient } from "@/lib/stripe/stripe-client";
-import { Logger } from "@/utils";
-
-const log = new Logger("AppApiPaymentCreateCheckoutSessionRoute");
-
-interface CreateCheckoutRequestBody {
-  planId: SubscriptionPlanId;
-  successUrl: string;
-  cancelUrl: string;
-}
-
-export async function POST(req: NextRequest) {
-  let body: CreateCheckoutRequestBody;
-  try {
-    body = (await req.json()) as CreateCheckoutRequestBody;
-  } catch {
-    return NextResponse.json(
-      { error: "Invalid JSON body" },
-      { status: 400 },
-    );
-  }
-
-  // 入参验证
-  if (!body.planId || !body.successUrl || !body.cancelUrl) {
-    return NextResponse.json(
-      { error: "Missing required fields: planId, successUrl, cancelUrl" },
-      { status: 400 },
-    );
-  }
-  if (!SUBSCRIPTION_PLANS.find((p) => p.id === body.planId)) {
-    return NextResponse.json(
-      { error: `Unknown planId: ${body.planId}` },
-      { status: 400 },
-    );
-  }
-
-  // 验证 successUrl / cancelUrl 来自同源（防 open redirect）
-  // 注：本轮先不做验证（前端和后端同源）—— 未来如果要开放给第三方请加 `same-origin` 检查
-
-  // 拿到 Stripe Price ID（从 env）
-  let priceId: string;
-  try {
-    priceId = getPlanPriceId(body.planId);
-  } catch (e) {
-    return NextResponse.json(
-      { error: (e as Error).message },
-      { status: 500 },
-    );
-  }
-
-  // 调 Stripe API 创建 Checkout Session
-  const stripe = getStripeClient();
-  try {
-    const session = await stripe.checkout.sessions.create({
-      mode: "subscription",
-      line_items: [{ price: priceId, quantity: 1 }],
-      success_url: body.successUrl,
-      cancel_url: body.cancelUrl,
-      // 让 webhook 能识别用户 + 套餐（后端接收 webhook 时从 metadata 取）
-      metadata: {
-        planId: body.planId,
-        // TODO: 加 userId（如果已知）—— 前端可在 body 传 userId
-      },
-      // 允许 promo codes（如果 Stripe dashboard 开了）
-      allow_promotion_codes: true,
-      // billing_address_collection: "auto" —— 根据 Stripe dashboard 配置
-    });
-
-    return NextResponse.json({ url: session.url });
-  } catch (e) {
-    const err = e as { message?: string; type?: string; code?: string };
-    log.error("[api/create-checkout-session] Stripe error", {
-      message: err.message,
-      type: err.type,
-      code: err.code,
-    });
-    return NextResponse.json(
-      {
-        error: err.message ?? "Failed to create checkout session",
-        type: err.type,
-      },
-      { status: 500 },
-    );
-  }
-}

src/app/api/payment/customer-portal/route.ts

@@ -1,76 +0,0 @@
-/**
- * POST /api/payment/customer-portal
- *
- * 创建 Stripe Customer Portal Session → 返回 URL 给前端
- *
- * 为什么需要 Customer Portal：
- *   - Stripe 托管的"用户自助管理"页（取消 / 换 plan / 查看账单 / 更新卡）
- *   - 不需要我们自己写 UI
- *   - 最常用的就是 "取消订阅"（避免客服）
- *
- * 需要的参数：`customerId`（从 User.stripeCustomerId 取）—— webhook 会设置
- *   - 如果为 null：返错（"先购买"）
- */
-import { NextRequest, NextResponse } from "next/server";
-
-import { getStripeClient } from "@/lib/stripe/stripe-client";
-import { Logger } from "@/utils";
-
-const log = new Logger("AppApiPaymentCustomerPortalRoute");
-
-interface CreatePortalRequestBody {
-  customerId: string | null;
-  returnUrl: string;
-}
-
-export async function POST(req: NextRequest) {
-  let body: CreatePortalRequestBody;
-  try {
-    body = (await req.json()) as CreatePortalRequestBody;
-  } catch {
-    return NextResponse.json(
-      { error: "Invalid JSON body" },
-      { status: 400 },
-    );
-  }
-
-  // 入参验证
-  if (!body.customerId) {
-    return NextResponse.json(
-      { error: "Missing customerId. Please subscribe first before managing subscription." },
-      { status: 400 },
-    );
-  }
-  if (!body.returnUrl) {
-    return NextResponse.json(
-      { error: "Missing returnUrl" },
-      { status: 400 },
-    );
-  }
-
-  // 调 Stripe API 创建 Customer Portal Session
-  const stripe = getStripeClient();
-  try {
-    const session = await stripe.billingPortal.sessions.create({
-      customer: body.customerId,
-      return_url: body.returnUrl,
-    });
-
-    return NextResponse.json({ url: session.url });
-  } catch (e) {
-    const err = e as { message?: string; type?: string; code?: string };
-    log.error("[api/customer-portal] Stripe error", {
-      customerId: body.customerId,
-      message: err.message,
-      type: err.type,
-      code: err.code,
-    });
-    return NextResponse.json(
-      {
-        error: err.message ?? "Failed to create customer portal session",
-        type: err.type,
-      },
-      { status: 500 },
-    );
-  }
-}

src/app/api/payment/webhook/route.ts

@@ -1,103 +0,0 @@
-/**
- * POST /api/payment/webhook
- *
- * 接收 Stripe webhook → 验签 → 分发到 handler
- *
- * 关键设计：
- *   - 必须用 raw body 验签（不能让 Next.js 解析 JSON，所以用 `request.text()` 取原文）
- *   - 校验 `stripe-signature` 头（用 `STRIPE_WEBHOOK_SECRET`）
- *   - `stripe.webhooks.constructEvent(rawBody, sigHeader, secret)` 会抛错（如果签名不匹配）
- *   - 分发到 `dispatchStripeEvent()` → 4 个 handler 之一
- *
- * 配置 Stripe webhook 端点：
- *   - URL：https://cozsweet.com/api/payment/webhook
- *   - 监听的事件：
- *     - checkout.session.completed
- *     - customer.subscription.created
- *     - customer.subscription.updated
- *     - customer.subscription.deleted
- *     - invoice.payment_succeeded
- *
- * 本地开发用 Stripe CLI 转发：
- *   stripe listen --forward-to localhost:3000/api/payment/webhook
- *   输出的 `whsec_xxx` → 写到 .env.local 的 `STRIPE_WEBHOOK_SECRET`
- */
-import { NextRequest, NextResponse } from "next/server";
-import type Stripe from "stripe";
-
-import { dispatchStripeEvent } from "@/lib/stripe/stripe-events";
-import { getStripeClient } from "@/lib/stripe/stripe-client";
-import { Logger } from "@/utils";
-
-const log = new Logger("AppApiPaymentWebhookRoute");
-
-export async function POST(req: NextRequest) {
-  const webhookSecret = process.env.STRIPE_WEBHOOK_SECRET;
-  if (!webhookSecret) {
-    log.error("[api/webhook] STRIPE_WEBHOOK_SECRET is not set");
-    return NextResponse.json(
-      { error: "Webhook secret not configured" },
-      { status: 500 },
-    );
-  }
-
-  // 取 raw body（验签用 raw bytes，不能 JSON.parse 后再 stringify —— 会丢空格、字节顺序等）
-  const rawBody = await req.text();
-  const sigHeader = req.headers.get("stripe-signature");
-  if (!sigHeader) {
-    log.error("[api/webhook] Missing stripe-signature header");
-    return NextResponse.json(
-      { error: "Missing stripe-signature header" },
-      { status: 400 },
-    );
-  }
-
-  // 校验签名（不匹配会抛错）
-  const stripe = getStripeClient();
-  let event: Stripe.Event;
-  try {
-    event = stripe.webhooks.constructEvent(rawBody, sigHeader, webhookSecret);
-  } catch (e) {
-    const err = e as Error;
-    log.error("[api/webhook] Signature verification failed", {
-      message: err.message,
-    });
-    return NextResponse.json(
-      { error: `Webhook signature verification failed: ${err.message}` },
-      { status: 400 },
-    );
-  }
-
-  // 分发到 handler
-  log.debug("[api/webhook] Received event", {
-    eventId: event.id,
-    type: event.type,
-    created: new Date(event.created * 1000).toISOString(),
-  });
-
-  try {
-    const handled = await dispatchStripeEvent(event);
-    if (!handled) {
-      log.debug(`[api/webhook] Ignored event type: ${event.type}`);
-    }
-  } catch (e) {
-    const err = e as Error;
-    log.error("[api/webhook] Handler error", {
-      eventId: event.id,
-      type: event.type,
-      message: err.message,
-      stack: err.stack,
-    });
-    // 返 500 让 Stripe 重试（幂等保护：handler 自己用 event.id 去重）
-    return NextResponse.json(
-      { error: "Handler error" },
-      { status: 500 },
-    );
-  }
-
-  // 返 200 让 Stripe 标记为已接收（即使 handler 没做什么也返 200 —— 避免无谓重试）
-  return NextResponse.json({ received: true });
-}
-
-/** 关闭 body parser 验签 raw body 需要 raw text（不能被 Next.js 的 bodyParser 解析）*/
-export const dynamic = "force-dynamic"; // 关闭静态优化（避免 body 被缓存）

src/app/subscription/cancel/page.tsx

@@ -3,8 +3,8 @@
  * 订阅取消回跳页
  *
  * 流程：
- *   1. 用户在 Stripe 托管页点 "Cancel" / 关闭页面
- *   2. Stripe 重定向到 `/subscription/cancel`
+ *   1. 用户在支付服务托管页点 "Cancel" / 关闭页面
+ *   2. 支付服务重定向到 `/subscription/cancel`
  *   3. 这个页面显示 "已取消" + 跳回 `/subscription`
  *
  * 不需要任何后端逻辑（没付款发生）

src/app/subscription/components/index.ts

@@ -7,6 +7,5 @@ export * from "./subscription-banner";
 export * from "./subscription-benefits-card";
 export * from "./subscription-checkout-button";
 export * from "./subscription-cta-button";
-export * from "./subscription-manage-button";
 export * from "./subscription-plan-card";
 export * from "./subscription-user-row";

src/app/subscription/components/subscription-checkout-button.tsx

@@ -2,75 +2,63 @@
 /**
  * 订阅 checkout 触发按钮
  *
- * 包装 `SubscriptionCtaButton` —— 加上调 `/api/payment/create-checkout-session` 的逻辑
- *
- * 流程：
- *   1. 用户点 "Confirm the agreement and Activate"
- *   2. fetch POST /api/payment/create-checkout-session { planId, successUrl, cancelUrl }
- *   3. 拿到 `{ url }` → `window.location.href = url` 跳转到 Stripe 托管页
- *   4. 用户结账 → Stripe 回跳到 successUrl / cancelUrl
- *   5. 同时发 webhook → 后端设置 user.isVip + voiceMinutes
+ * 包装 `SubscriptionCtaButton` —— 通过 payment 状态机创建后端订单并拉起支付。
  */
-import { useState } from "react";
+import { useEffect, useRef } from "react";
 
-import type { SubscriptionPlanId } from "@/data/constants/subscription-plans";
-import { ROUTES } from "@/router/routes";
+import {
+  usePaymentDispatch,
+  usePaymentState,
+} from "@/stores/payment/payment-context";
 
 import { SubscriptionCtaButton } from "./subscription-cta-button";
 import styles from "./subscription-cta-button.module.css";
-import { Logger } from "@/utils";
-
-const log = new Logger("AppSubscriptionComponentsSubscriptionCheckoutButton");
 
 export interface SubscriptionCheckoutButtonProps {
-  planId: SubscriptionPlanId;
   /** 是否可用（未选套餐 / 未勾选协议 → false） */
   disabled?: boolean;
 }
 
 export function SubscriptionCheckoutButton({
-  planId,
   disabled = false,
 }: SubscriptionCheckoutButtonProps) {
-  const [isLoading, setIsLoading] = useState(false);
-  const [error, setError] = useState<string | null>(null);
+  const payment = usePaymentState();
+  const paymentDispatch = usePaymentDispatch();
+  const launchedNonceRef = useRef(0);
 
-  const handleClick = async () => {
-    if (disabled || isLoading) return;
-    setIsLoading(true);
-    setError(null);
-
-    try {
-      // success / cancel URL —— 走当前 origin 的绝对路径
-      const origin = window.location.origin;
-      const res = await fetch("/api/payment/create-checkout-session", {
-        method: "POST",
-        headers: { "Content-Type": "application/json" },
-        body: JSON.stringify({
-          planId,
-          successUrl: `${origin}${ROUTES.subscription}/success?session_id={CHECKOUT_SESSION_ID}`,
-          cancelUrl: `${origin}${ROUTES.subscription}/cancel`,
-        }),
-      });
-
-      if (!res.ok) {
-        const data = (await res.json().catch(() => ({}))) as { error?: string };
-        throw new Error(data.error ?? `HTTP ${res.status}`);
-      }
-
-      const { url } = (await res.json()) as { url: string };
-      if (!url) {
-        throw new Error("No checkout URL returned");
-      }
-
-      // 跳转到 Stripe 托管页
-      window.location.href = url;
-    } catch (e) {
-      const err = e as Error;
-      log.error("[subscription-checkout-button] error", err);
-      setError(err.message);
-      setIsLoading(false);
+  useEffect(() => {
+    if (!payment.payParams || payment.launchNonce <= launchedNonceRef.current) {
+      return;
     }
+
+    launchedNonceRef.current = payment.launchNonce;
+    const paymentUrl = getPaymentUrl(payment.payParams);
+    if (!paymentUrl) {
+      paymentDispatch({
+        type: "PaymentLaunchFailed",
+        errorMessage: "Payment parameters did not include a supported URL.",
+      });
+      return;
+    }
+
+    window.location.href = paymentUrl;
+  }, [payment.launchNonce, payment.payParams, paymentDispatch]);
+
+  const isLoading =
+    payment.isCreatingOrder ||
+    payment.isPollingOrder ||
+    payment.isCheckingVipStatus;
+  const label = payment.isPaid
+    ? "Activated"
+    : payment.isPollingOrder
+      ? "Processing payment..."
+      : payment.isCreatingOrder
+        ? "Creating order..."
+        : "Confirm the agreement and Activate";
+
+  const handleClick = () => {
+    if (disabled || isLoading) return;
+    paymentDispatch({ type: "PaymentCreateOrderSubmitted" });
   };
 
   return (
@@ -82,9 +70,9 @@ export function SubscriptionCheckoutButton({
         onClick={handleClick}
         className={styles.button}
       >
-        Confirm the agreement and Activate
+        {label}
       </SubscriptionCtaButton>
-      {error ? (
+      {payment.errorMessage ? (
         <p
           role="alert"
           style={{
@@ -94,9 +82,28 @@ export function SubscriptionCheckoutButton({
             textAlign: "center",
           }}
         >
-          {error}
+          {payment.errorMessage}
         </p>
       ) : null}
     </>
   );
 }
+
+function getPaymentUrl(payParams: Record<string, unknown>): string | null {
+  const keys = [
+    "url",
+    "checkoutUrl",
+    "checkout_url",
+    "paymentUrl",
+    "payment_url",
+    "redirectUrl",
+    "redirect_url",
+  ];
+
+  for (const key of keys) {
+    const value = payParams[key];
+    if (typeof value === "string" && value.length > 0) return value;
+  }
+
+  return null;
+}

src/app/subscription/components/subscription-manage-button.tsx

@@ -1,101 +0,0 @@
-"use client";
-/**
- * "Manage VIP" 按钮组件（取消订阅 / 换 plan / 查看账单）
- *
- * 点击后调 `/api/payment/customer-portal` 拿到 Stripe Customer Portal 页面的 URL
- *
- * 业务事实：
- *   - 不自己写 "取消订阅" UI —— 跳到 Stripe 自己的 Customer Portal
- *   - 要 `customerId` —— webhook 会设置到 User.stripeCustomerId
- *   - 如果为 null（用户从未购买）→ 提示 "先购买"（"Get VIP" 路径走过来就是这个）
- */
-import { useState } from "react";
-
-import { ROUTES } from "@/router/routes";
-
-import { SubscriptionCtaButton } from "./subscription-cta-button";
-import styles from "./subscription-cta-button.module.css";
-import { Logger } from "@/utils";
-
-const log = new Logger("AppSubscriptionComponentsSubscriptionManageButton");
-
-export interface SubscriptionManageButtonProps {
-  /** 从 User.stripeCustomerId 取（webhook 设置） */
-  customerId: string | null;
-}
-
-export function SubscriptionManageButton({ customerId }: SubscriptionManageButtonProps) {
-  const [isLoading, setIsLoading] = useState(false);
-  const [error, setError] = useState<string | null>(null);
-
-  const handleClick = async () => {
-    if (isLoading) return;
-
-    // 没有 customerId → 不该出现这个按钮（sidebar 根据 isVip + stripeCustomerId 控制展示）
-    // 防御性检查：如果走到这里没有 customerId，提示用户联系客服
-    if (!customerId) {
-      setError("Please subscribe first before managing your subscription.");
-      return;
-    }
-
-    setIsLoading(true);
-    setError(null);
-
-    try {
-      const origin = window.location.origin;
-      const res = await fetch("/api/payment/customer-portal", {
-        method: "POST",
-        headers: { "Content-Type": "application/json" },
-        body: JSON.stringify({
-          customerId,
-          returnUrl: `${origin}${ROUTES.subscription}`,
-        }),
-      });
-
-      if (!res.ok) {
-        const data = (await res.json().catch(() => ({}))) as { error?: string };
-        throw new Error(data.error ?? `HTTP ${res.status}`);
-      }
-
-      const { url } = (await res.json()) as { url: string };
-      if (!url) {
-        throw new Error("No portal URL returned");
-      }
-
-      // 跳转到 Stripe Customer Portal
-      window.location.href = url;
-    } catch (e) {
-      const err = e as Error;
-      log.error("[subscription-manage-button] error", err);
-      setError(err.message);
-      setIsLoading(false);
-    }
-  };
-
-  return (
-    <>
-      <SubscriptionCtaButton
-        type="button"
-        disabled={!customerId}
-        isLoading={isLoading}
-        onClick={handleClick}
-        className={styles.button}
-      >
-        Manage VIP
-      </SubscriptionCtaButton>
-      {error ? (
-        <p
-          role="alert"
-          style={{
-            color: "#c0392b",
-            fontSize: "0.875rem",
-            marginTop: "0.5rem",
-            textAlign: "center",
-          }}
-        >
-          {error}
-        </p>
-      ) : null}
-    </>
-  );
-}

src/app/subscription/components/subscription-plan-card.tsx

@@ -9,20 +9,31 @@
  *   - 选中/高亮：2px 粉色边框 + 浅粉阴影
  *   - 三个卡片底部渐变不同：粉 → 紫红 → 紫
  */
-import type { SubscriptionPlan, SubscriptionPlanId } from "@/data/constants/subscription-plans";
 
 import styles from "./subscription-plan-card.module.css";
 
-const PER_DAY_GRADIENTS: Record<SubscriptionPlanId, string> = {
-  monthly: "linear-gradient(90deg, #ff7ab8 0%, #ff5d9c 100%)",
-  quarterly: "linear-gradient(90deg, #d16bff 0%, #ff5da3 100%)",
-  annual: "linear-gradient(90deg, #9a4dff 0%, #c44dff 100%)",
-};
+const PER_DAY_GRADIENTS = [
+  "linear-gradient(90deg, #ff7ab8 0%, #ff5d9c 100%)",
+  "linear-gradient(90deg, #d16bff 0%, #ff5da3 100%)",
+  "linear-gradient(90deg, #9a4dff 0%, #c44dff 100%)",
+  "linear-gradient(90deg, #32c7b5 0%, #2f8fd8 100%)",
+] as const;
+
+export interface SubscriptionPlanView {
+  id: string;
+  name: string;
+  price: string;
+  originalPrice: string | null;
+  perDay: string;
+  highlight: boolean;
+  currencySymbol: string;
+}
 
 export interface SubscriptionPlanCardProps {
-  plan: SubscriptionPlan;
+  plan: SubscriptionPlanView;
   selected: boolean;
   onClick: () => void;
+  gradientIndex?: number;
   className?: string;
 }
 
@@ -30,6 +41,7 @@ export function SubscriptionPlanCard({
   plan,
   selected,
   onClick,
+  gradientIndex = 0,
   className,
 }: SubscriptionPlanCardProps) {
   const classes = [
@@ -41,22 +53,26 @@ export function SubscriptionPlanCard({
     .filter(Boolean)
     .join(" ");
 
-  const perDayStyle = { background: PER_DAY_GRADIENTS[plan.id] };
+  const perDayStyle = {
+    background: PER_DAY_GRADIENTS[gradientIndex % PER_DAY_GRADIENTS.length],
+  };
 
   return (
     <button
       type="button"
       onClick={onClick}
       aria-pressed={selected}
-      aria-label={`${plan.name} plan, $${plan.price}`}
+      aria-label={`${plan.name} plan, ${plan.currencySymbol}${plan.price}`}
       className={classes}
     >
       <p className={styles.name}>{plan.name}</p>
       <div className={styles.priceBlock}>
-        <span className={styles.currency}>$</span>
+        <span className={styles.currency}>{plan.currencySymbol}</span>
         <span className={styles.price}>{plan.price}</span>
       </div>
-      <p className={styles.originalPrice}>${plan.originalPrice}</p>
+      <p className={styles.originalPrice}>
+        {plan.originalPrice ? `${plan.currencySymbol}${plan.originalPrice}` : "\u00a0"}
+      </p>
       <div className={styles.perDayBar} style={perDayStyle}>
         {plan.perDay}
       </div>

src/app/subscription/components/subscription-screen.module.css

@@ -28,11 +28,21 @@
 
 .plansRow {
   display: grid;
-  grid-template-columns: repeat(3, 1fr);
+  grid-template-columns: repeat(auto-fit, minmax(92px, 1fr));
   gap: var(--spacing-sm);
   margin-top: var(--spacing-xl);
 }
 
+.plansStatus {
+  grid-column: 1 / -1;
+  margin: 0;
+  padding: var(--spacing-md) var(--spacing-xs);
+  color: var(--color-text-secondary);
+  font-size: var(--font-size-sm);
+  text-align: center;
+  line-height: 1.5;
+}
+
 .autoRenewCaption {
   margin: var(--spacing-md) 0 0;
   padding: 0 var(--spacing-xs);

src/app/subscription/subscription-screen.tsx

@@ -14,48 +14,110 @@
  *   7. 主操作按钮
  *   8. 协议复选框
  */
-import { useState } from "react";
+import { useEffect, useMemo, useRef } from "react";
 
 import { Checkbox, MobileShell } from "@/app/_components/core";
 import { AppConstants } from "@/core/app_constants";
-import {
-  SUBSCRIPTION_PLANS,
-  type SubscriptionPlanId,
-} from "@/data/constants/subscription-plans";
+import type { PaymentPlan } from "@/data/dto/payment";
 import { VIP_BENEFITS } from "@/data/constants/vip-benefits";
-import { useUserState } from "@/stores/user/user-context";
+import {
+  usePaymentDispatch,
+  usePaymentState,
+} from "@/stores/payment/payment-context";
+import { useUserDispatch, useUserState } from "@/stores/user/user-context";
 
 import {
   SubscriptionBackLink,
   SubscriptionBanner,
   SubscriptionBenefitsCard,
   SubscriptionCheckoutButton,
-  SubscriptionManageButton,
+  SubscriptionCtaButton,
   SubscriptionPlanCard,
   SubscriptionUserRow,
 } from "./components";
 import styles from "./components/subscription-screen.module.css";
+import type { SubscriptionPlanView } from "./components/subscription-plan-card";
 
 const FALLBACK_USERNAME = "User name";
 
+function isVipPlan(plan: PaymentPlan): boolean {
+  return plan.orderType.startsWith("vip_") || plan.planId.startsWith("vip_");
+}
+
+function currencySymbol(currency: string): string {
+  if (currency === "CNY") return "¥";
+  if (currency === "USD") return "$";
+  return `${currency} `;
+}
+
+function formatAmount(amountCents: number): string {
+  return (amountCents / 100).toFixed(2).replace(/\.00$/, "");
+}
+
+function planCaption(plan: PaymentPlan): string {
+  if (plan.vipDays === null) return "Lifetime";
+  const perDay = plan.amountCents / 100 / Math.max(plan.vipDays, 1);
+  return `${currencySymbol(plan.currency)}${perDay.toFixed(2)}/day`;
+}
+
+function toPlanView(plan: PaymentPlan, index: number): SubscriptionPlanView {
+  return {
+    id: plan.planId,
+    name: plan.planName,
+    price: formatAmount(plan.amountCents),
+    originalPrice: null,
+    perDay: planCaption(plan),
+    highlight: plan.planId === "vip_monthly" || index === 0,
+    currencySymbol: currencySymbol(plan.currency),
+  };
+}
+
 export function SubscriptionScreen() {
   const user = useUserState();
+  const userDispatch = useUserDispatch();
+  const payment = usePaymentState();
+  const paymentDispatch = usePaymentDispatch();
+  const refreshedPaidOrderRef = useRef<string | null>(null);
 
-  const initialPlanId =
-    SUBSCRIPTION_PLANS.find((p) => p.highlight)?.id ?? null;
+  useEffect(() => {
+    if (payment.status === "idle") {
+      paymentDispatch({ type: "PaymentInit" });
+    }
+  }, [payment.status, paymentDispatch]);
 
-  // 强制类型为 `SubscriptionPlanId` —— 套餐表只有 3 个 id，不会越界
-  const [selectedPlanId, setSelectedPlanId] = useState<SubscriptionPlanId | null>(
-    initialPlanId as SubscriptionPlanId | null,
+  useEffect(() => {
+    if (!payment.isPaid || !payment.currentOrderId) return;
+    if (refreshedPaidOrderRef.current === payment.currentOrderId) return;
+    refreshedPaidOrderRef.current = payment.currentOrderId;
+    userDispatch({ type: "UserFetch" });
+  }, [payment.currentOrderId, payment.isPaid, userDispatch]);
+
+  const vipPlans = useMemo(
+    () =>
+      payment.plans
+        .filter(isVipPlan)
+        .map((plan, index) => toPlanView(plan, index)),
+    [payment.plans],
   );
-  const [agreed, setAgreed] = useState(false);
 
-  const canActivate = selectedPlanId !== null && agreed;
-  const isVip = user.currentUser?.isVip ?? false;
-  const stripeCustomerId = user.currentUser?.stripeCustomerId ?? null;
+  const selectedPlan =
+    vipPlans.find((plan) => plan.id === payment.selectedPlanId) ?? null;
+  const isPaymentBusy =
+    payment.isCreatingOrder ||
+    payment.isPollingOrder ||
+    payment.isCheckingVipStatus;
+  const canActivate =
+    selectedPlan !== null && payment.agreed && !isPaymentBusy;
+  const isVip =
+    user.currentUser?.isVip === true ||
+    payment.vipStatus?.isVip === true ||
+    payment.isPaid;
 
   const name = user.currentUser?.username ?? FALLBACK_USERNAME;
   const avatarUrl = user.currentUser?.avatarUrl ?? null;
+  const autoRenewCaption = payment.autoRenew
+    ? "It will automatically renew upon expiration, and can be canceled at any time"
+    : "This plan is a one-time purchase and will not automatically renew";
 
   return (
     <MobileShell>
@@ -76,20 +138,31 @@ export function SubscriptionScreen() {
           className={styles.plansRow}
           aria-label="Choose a subscription plan"
         >
-          {SUBSCRIPTION_PLANS.map((plan) => (
-            <SubscriptionPlanCard
-              key={plan.id}
-              plan={plan}
-              selected={selectedPlanId === plan.id}
-              onClick={() => setSelectedPlanId(plan.id)}
-            />
-          ))}
+          {vipPlans.length > 0 ? (
+            vipPlans.map((plan, index) => (
+              <SubscriptionPlanCard
+                key={plan.id}
+                plan={plan}
+                gradientIndex={index}
+                selected={payment.selectedPlanId === plan.id}
+                onClick={() =>
+                  paymentDispatch({
+                    type: "PaymentPlanSelected",
+                    planId: plan.id,
+                  })
+                }
+              />
+            ))
+          ) : (
+            <p className={styles.plansStatus}>
+              {payment.isLoadingPlans
+                ? "Loading membership plans..."
+                : payment.errorMessage ?? "Membership plans are unavailable."}
+            </p>
+          )}
         </section>
 
-        <p className={styles.autoRenewCaption}>
-          It will automatically renew upon expiration, and can be canceled at
-          any time
-        </p>
+        <p className={styles.autoRenewCaption}>{autoRenewCaption}</p>
 
         <section className={styles.benefitsSlot}>
           <SubscriptionBenefitsCard
@@ -99,15 +172,12 @@ export function SubscriptionScreen() {
         </section>
 
         <div className={styles.ctaSlot}>
-          {/*
-           * 已为 VIP 的用户 → 显示 Manage VIP 按钮（跳转到 Stripe Customer Portal）
-           * VIP 状态从 `user.isVip` 取（webhook 会设置）
-           */}
           {isVip ? (
-            <SubscriptionManageButton customerId={stripeCustomerId} />
+            <SubscriptionCtaButton type="button" disabled>
+              VIP Activated
+            </SubscriptionCtaButton>
           ) : (
             <SubscriptionCheckoutButton
-              planId={selectedPlanId ?? "monthly"}
               disabled={!canActivate}
             />
           )}
@@ -115,8 +185,13 @@ export function SubscriptionScreen() {
 
         <div className={styles.agreementSlot}>
           <Checkbox
-            checked={agreed}
-            onChange={setAgreed}
+            checked={payment.agreed}
+            onChange={(agreed) =>
+              paymentDispatch({
+                type: "PaymentAgreementChanged",
+                agreed,
+              })
+            }
             label={
               <>
                 I agree to the{" "}

src/app/subscription/success/page.tsx

@@ -3,13 +3,13 @@
  * 订阅成功回跳页
  *
  * 流程：
- *   1. 用户在 Stripe 托管页完成结账
- *   2. Stripe 重定向到 `/subscription/success?session_id=xxx`
+ *   1. 用户在支付服务托管页完成结账
+ *   2. 支付服务重定向到 `/subscription/success`
  *   3. 这个页面显示 "购买成功" + 调 `getCurrentUser` 刷新 user
  *   4. 点 "返回订阅页" 跳回 `/subscription`
  *
- * 注意：webhook 会异步触发 + 更新 user.isVip + voiceMinutes
- *   此页面拿到 session_id 后 轮询几次 getCurrentUser 等待 webhook 完成（避免 webhook 还没到 user 就还没更新的情况）
+ * 注意：权益发放由后端支付服务链路异步完成。
+ *   此页面轮询几次 getCurrentUser 等待 user 状态完成更新。
  */
 import { useEffect, useRef, useState } from "react";
 import Link from "next/link";
@@ -25,7 +25,7 @@ export default function SubscriptionSuccessPage() {
   const [errorMessage, setErrorMessage] = useState<string | null>(null);
   const hasRefreshed = useRef(false);
 
-  // 轮询 getCurrentUser 等待 webhook 完成
+  // 轮询 getCurrentUser 等待后端权益发放完成
   useEffect(() => {
     if (hasRefreshed.current) return;
     hasRefreshed.current = true;

src/data/constants/subscription-plans.ts

@@ -5,12 +5,8 @@
  *
  * 原始 Dart: lib/ui/subscription/...
  *
- * Stripe 接入新增字段：
- *   - `stripeProductId` / `stripePriceId`：Stripe 后台创建 Product + Price 后拿到的 id
- *   - `voiceMinutesPerDay`：该套餐每天给用户的语音分钟数（订阅后每天补充）
- *
- * 注：stripeProductId / stripePriceId 没有默认值 —— 为避免硬编码真实 id，由 env 动态注入（见 `src/lib/stripe/stripe-products.ts`）
- *   本常量表只是 UI 形状 + 业务字段的单一真相源
+ * 当前订阅页优先使用后端 `/api/payment/plans` 返回的套餐。
+ * 本常量仅保留给旧 UI / fallback 代码参考。
  */
 export type SubscriptionPlanId = "monthly" | "quarterly" | "annual";
 

src/data/dto/payment/payment_order_status_response.ts

@@ -8,6 +8,8 @@ import {
   type PaymentOrderStatusResponseInput,
 } from "@/data/schemas/payment/payment_order_status_response";
 
+export type { PaymentOrderStatus };
+
 export class PaymentOrderStatusResponse {
   declare readonly orderId: string;
   declare readonly status: PaymentOrderStatus;

src/data/dto/user/user.ts

@@ -24,14 +24,10 @@ export class User {
   declare readonly avatarUrl: string;
   declare readonly loginProvider: string;
   declare readonly isGuest: boolean;
-  /** 是否为 VIP 会员（Stripe webhook 更新） */
+  /** 是否为 VIP 会员 */
   declare readonly isVip: boolean;
-  /** 语音聊天剩余分钟数（Stripe webhook 更新） */
+  /** 语音聊天剩余分钟数 */
   declare readonly voiceMinutesRemaining: number;
-  /** Stripe Customer ID —— 首次 Checkout 完成后由 webhook 设置 */
-  declare readonly stripeCustomerId: string | null;
-
-
 
   private constructor(input: UserInput) {
     const data = UserSchema.parse(input);

src/data/dto/user/user_view.ts

@@ -17,7 +17,6 @@ export const UserViewSchema = z.object({
   isGuest: z.boolean(),
   isVip: z.boolean(),
   voiceMinutesRemaining: z.number(),
-  stripeCustomerId: z.string().nullable(),
 });
 
 export type UserView = z.infer<typeof UserViewSchema>;

src/data/schemas/chat/chat_history_response.ts

@@ -10,10 +10,10 @@ export const ChatHistoryResponseSchema = z.object({
   total: z.number().default(0),
   limit: z.number(),
   offset: z.number(),
-  isVip: z.boolean(),
-  privateFreeLimit: z.number(),
-  privateUsedToday: z.number(),
-  privateCanViewFree: z.boolean(),
+  isVip: z.boolean().default(false),
+  privateFreeLimit: z.number().default(0),
+  privateUsedToday: z.number().default(0),
+  privateCanViewFree: z.boolean().default(false),
 });
 
 export type ChatHistoryResponseInput = z.input<typeof ChatHistoryResponseSchema>;

src/data/schemas/chat/chat_send_response.ts

@@ -26,8 +26,8 @@ export const ChatSendResponseSchema = z.object({
   blocked: z.boolean().nullable().default(null),
   blockReason: z.string().nullable().default(null),
   blockDetail: ChatBlockDetailSchema.nullable().default(null),
-  paywallTriggered: z.boolean(),
-  showUpgrade: z.boolean(),
+  paywallTriggered: z.boolean().default(false),
+  showUpgrade: z.boolean().default(false),
   imageType: z.string().nullable().default(null),
   imageUrl: z.string().nullable().default(null),
 });

src/data/schemas/user/user.ts

@@ -27,12 +27,10 @@ export const UserSchema = z.object({
   avatarUrl: stringOrEmpty,
   loginProvider: stringOrEmpty,
   isGuest: booleanOrFalse,
-  /** 是否为 VIP 会员（订阅中或未过期） —— Stripe webhook 更新 */
+  /** 是否为 VIP 会员（订阅中或未过期） */
   isVip: booleanOrFalse,
   /** 语音聊天剩余分钟数（订阅生效后每天补充；用完为 0 不变） */
   voiceMinutesRemaining: numberOrZero,
-  /** Stripe Customer ID —— 首次 Checkout 完成后由 webhook 设置，用于 Customer Portal 自助管理 */
-  stripeCustomerId: z.string().nullable().default(null),
 });
 
 export type UserInput = z.input<typeof UserSchema>;

src/lib/stripe/stripe-client.ts

@@ -1,44 +0,0 @@
-/**
- * Stripe Node.js SDK 单例（懒初始化）
- *
- * 为什么单例：
- *   - `new Stripe(secretKey)` 会发起一个内部 HTTP client
- *   - 不需要每次 `new`（也不需要）
- *   - 模块级 `let client` —— 首次调用 `getStripeClient()` 时初始化，之后复用
- *
- * 调用方：
- *   - 仅在 Next.js API route / Server Component 用（secret key 不要暴露给 client bundle）
- *   - client 端用 `@stripe/stripe-js` 的 `loadStripe(publishableKey)`
- */
-import Stripe from "stripe";
-
-let _client: Stripe | null = null;
-
-/**
- * 获取 Stripe SDK 单例（懒初始化）
- * - 首次调用会 `new Stripe(secretKey)`，后续直接返回 cache
- * - 如果 `STRIPE_SECRET_KEY` 未设置，抛错（避免 silent failure）
- */
-export function getStripeClient(): Stripe {
-  if (_client) return _client;
-
-  const secretKey = process.env.STRIPE_SECRET_KEY;
-  if (!secretKey) {
-    throw new Error(
-      "STRIPE_SECRET_KEY is not set. Please configure it in .env.local (or your env).",
-    );
-  }
-
-  _client = new Stripe(secretKey, {
-    // Stripe API 版本（跟 SDK 22.2.1 默认版本对应 —— "2026-05-27.dahlia"）
-    // 用 `as never` 绕过 SDK 的字符串字面量联合类型限制（SDK 22.x 限定了具体允许的版本，
-    // 但我们暂时只关心 "能用"；后续如需 lock 到具体版本，再改成 as const 字符串字面量）
-    apiVersion: "2026-05-27.dahlia" as never,
-    typescript: true,
-    appInfo: {
-      name: "cozsweet-frontend-nextjs",
-      version: "0.1.0",
-    },
-  });
-  return _client;
-}

src/lib/stripe/stripe-events.ts

@@ -1,191 +0,0 @@
-/**
- * Stripe webhook 事件处理器
- *
- * 4 个核心事件：
- *   - `checkout.session.completed`     订阅首次购买 / 续费成功（返回 session URL 时 Stripe 触发）
- *   - `customer.subscription.deleted`  订阅取消（用户在 Portal 取消 / 不续费）
- *   - `customer.subscription.updated`  订阅状态变化（plan 升级 / 降级 / 重新激活）
- *   - `invoice.payment_succeeded`      续费周期扣款成功（每个计费周期触发）
- *
- * 设计：handler 返回 `Promise<void>`，幂等（用 event.id 去重）—— Stripe 保留重试权利
- *
- * 注：本轮handler 暂不调后端 API（因为后端 Stripe 接入可能还没完成）——
- *   只记录 event 到服务端 console，并 TODO 注释后续接入位置。
- *   webhook 验签 + 分发在 `/api/payment/webhook` API route 里处理（见 route.ts）。
- */
-import type Stripe from "stripe";
-import { getStripeClient } from "./stripe-client";
-import { Logger } from "@/utils";
-
-const log = new Logger("LibStripeStripeEvents");
-
-/**
- * 4 个事件的主分发器
- * @returns true 如果事件已处理；false 如果忽略
- */
-export async function dispatchStripeEvent(
-  event: Stripe.Event,
-): Promise<boolean> {
-  switch (event.type) {
-    case "checkout.session.completed":
-      await handleCheckoutCompleted(event);
-      return true;
-    case "customer.subscription.deleted":
-      await handleSubscriptionDeleted(event);
-      return true;
-    case "customer.subscription.updated":
-    case "customer.subscription.created":
-      await handleSubscriptionUpdated(event);
-      return true;
-    case "invoice.payment_succeeded":
-      await handleInvoicePaymentSucceeded(event);
-      return true;
-    default:
-      // 其他事件不关心（如 `payment_intent.succeeded`、试用结束警告等）
-      return false;
-  }
-}
-
-// ============================================================
-// Handler 1: checkout.session.completed
-// ============================================================
-/**
- * 首次购买 / 续费成功 → 设置 user.isVip=true，补充 voiceMinutesRemaining
- *
- * 业务事实：
- *   - mode: "subscription" 的 Checkout Session 完成即代表订阅生效
- *   - 可以从 event.data.object 取到 customer + subscription 字段
- *   - 如果是续费（`subscription` 已存在）→ 同样处理（补充配额）
- */
-async function handleCheckoutCompleted(
-  event: Stripe.CheckoutSessionCompletedEvent,
-): Promise<void> {
-  const session = event.data.object;
-  const customerId =
-    typeof session.customer === "string" ? session.customer : session.customer?.id;
-  const subscriptionId =
-    typeof session.subscription === "string"
-      ? session.subscription
-      : session.subscription?.id;
-
-  log.debug("[stripe-events] checkout.session.completed", {
-    eventId: event.id,
-    customerId,
-    subscriptionId,
-    amountTotal: session.amount_total,
-    currency: session.currency,
-    mode: session.mode,
-  });
-
-  // TODO: 后端接入 Stripe 后，这里调后端 API
-  // POST /api/internal/users/:userId/set-vip
-  // { isVip: true, voiceMinutes: <plan's voiceMinutesPerDay> }
-  // 本轮先不接（后端可能还没好）——
-  //   业务后端收到 webhook 后会自己更新 user.isVip + voiceMinutesRemaining
-}
-
-// ============================================================
-// Handler 2: customer.subscription.deleted
-// ============================================================
-/**
- * 订阅取消 → user.isVip=false
- *
- * 注意：voiceMinutesRemaining 保留（不清零）—— 不然已经发送的语音会消失
- * （业务决定）
- */
-async function handleSubscriptionDeleted(
-  event: Stripe.CustomerSubscriptionDeletedEvent,
-): Promise<void> {
-  const subscription = event.data.object;
-  const customerId =
-    typeof subscription.customer === "string"
-      ? subscription.customer
-      : subscription.customer.id;
-
-  log.debug("[stripe-events] customer.subscription.deleted", {
-    eventId: event.id,
-    customerId,
-    subscriptionId: subscription.id,
-    canceledAt: subscription.canceled_at,
-    status: subscription.status,
-  });
-
-  // TODO: POST /api/internal/users/:userId/set-vip { isVip: false }
-  //   voiceMinutesRemaining 不动（保留余额）
-}
-
-// ============================================================
-// Handler 3: customer.subscription.updated / created
-// ============================================================
-/**
- * 订阅状态变化 → 记录用于后续扩展（plan 升级 / 降级 / 重新激活）
- *
- * 本轮只记录，未来如果要 "升级 plan 补充差价" 之类的再加
- */
-async function handleSubscriptionUpdated(
-  event:
-    | Stripe.CustomerSubscriptionUpdatedEvent
-    | Stripe.CustomerSubscriptionCreatedEvent,
-): Promise<void> {
-  const subscription = event.data.object;
-  const customerId =
-    typeof subscription.customer === "string"
-      ? subscription.customer
-      : subscription.customer.id;
-
-  log.debug(`[stripe-events] customer.subscription.${event.type}`, {
-    eventId: event.id,
-    customerId,
-    subscriptionId: subscription.id,
-    status: subscription.status,
-    cancelAtPeriodEnd: subscription.cancel_at_period_end,
-    itemsCount: subscription.items.data.length,
-  });
-
-  // TODO: 如果要处理 plan 升级 / 降级 → POST /api/internal/users/:userId/update-subscription
-}
-
-// ============================================================
-// Handler 4: invoice.payment_succeeded
-// ============================================================
-/**
- * 续费周期扣款成功 → 补充 voiceMinutesRemaining
- *
- * 触发：每个计费周期 Stripe 自己扣款成功后（与 `customer.subscription.updated` 不同）
- *   - `billing_reason: "subscription_cycle"`：周期续费（我们要的）
- *   - `billing_reason: "subscription_create"`：首次购买（与 `checkout.session.completed` 重叠）
- *   - `billing_reason: "subscription_update"`：plan 升级 / 降级后的补差价
- *
- * 幂等保护：用 `invoice.id` 去重（webhook 会重试，可能同一次扣款发多次）
- */
-async function handleInvoicePaymentSucceeded(
-  event: Stripe.InvoicePaymentSucceededEvent,
-): Promise<void> {
-  const invoice = event.data.object;
-  const customerId =
-    typeof invoice.customer === "string" ? invoice.customer : invoice.customer?.id;
-
-  // 只关心周期续费（不对首次购买重复补充）
-  if (invoice.billing_reason !== "subscription_cycle") {
-    log.debug(
-      `[stripe-events] invoice.payment_succeeded (skipped, billing_reason=${invoice.billing_reason})`,
-      { eventId: event.id, invoiceId: invoice.id },
-    );
-    return;
-  }
-
-  log.debug("[stripe-events] invoice.payment_succeeded (subscription_cycle)", {
-    eventId: event.id,
-    invoiceId: invoice.id,
-    customerId,
-    amountPaid: invoice.amount_paid,
-  });
-
-
-  // TODO: POST /api/internal/users/:userId/top-up-voice-minutes
-  //   { minutes: <plan's voiceMinutesPerDay> }
-}
-
-// 注：stripe-client 保留给未来扩展使用（例如主动调 `stripe.subscriptions.update()` 升级 plan）
-//   本轮 handler 没直接调用 getStripeClient()（webhook 是事件驱动，不需要反向查 Stripe）
-export const _internal_stripeClient = getStripeClient;

src/lib/stripe/stripe-products.ts

@@ -1,48 +0,0 @@
-/**
- * Stripe product / price id 映射
- *
- * 为什么不直接存到 `subscription-plans.ts`：
- *   - product/price id 是部署环境配置（不同环境不同 product）
- *   - 套餐本身的 `name` / `price` / `highlight` 是业务常量（不随环境变）
- *   - 分离后，套餐表只包含业务字段，产品 id 走 env —— 避免硬编码 + 生产安全
- *
- * env 命名规范：
- *   - STRIPE_PRODUCT_<PLAN_ID_UPPER> → Product ID
- *   - STRIPE_PRICE_<PLAN_ID_UPPER>   → Price ID
- *   - 例：STRIPE_PRODUCT_MONTHLY, STRIPE_PRICE_QUARTERLY
- */
-import type { SubscriptionPlanId } from "@/data/constants/subscription-plans";
-
-/**
- * 获取 Stripe Product ID（从 env）
- *
- * @throws Error 如果 env 未配置（避免 silent failure）
- */
-export function getPlanProductId(planId: SubscriptionPlanId): string {
-  const envKey = `STRIPE_PRODUCT_${planId.toUpperCase()}`;
-  const productId = process.env[envKey];
-  if (!productId || productId.startsWith("prod_replace_")) {
-    throw new Error(
-      `Stripe product id is not configured. Set ${envKey} in .env.local.`,
-    );
-  }
-  return productId;
-}
-
-/**
- * 获取 Stripe Price ID（从 env）
- *
- * Price ID 是真正用在 `stripe.checkout.sessions.create({ line_items: [{ price: "price_xxx" }] })` 里的
- *
- * @throws Error 如果 env 未配置
- */
-export function getPlanPriceId(planId: SubscriptionPlanId): string {
-  const envKey = `STRIPE_PRICE_${planId.toUpperCase()}`;
-  const priceId = process.env[envKey];
-  if (!priceId || priceId.startsWith("price_replace_")) {
-    throw new Error(
-      `Stripe price id is not configured. Set ${envKey} in .env.local.`,
-    );
-  }
-  return priceId;
-}

src/providers/root-providers.tsx

@@ -21,6 +21,7 @@ import { AuthStatusChecker } from "@/stores/auth/auth-status-checker";
 import { OAuthSessionSync } from "@/stores/auth/oauth-session-sync";
 import { ChatAuthSync } from "@/stores/chat/chat-auth-sync";
 import { ChatProvider } from "@/stores/chat/chat-context";
+import { PaymentProvider } from "@/stores/payment";
 import { SidebarProvider } from "@/stores/sidebar/sidebar-context";
 import { UserAuthSync } from "@/stores/user/user-auth-sync";
 import { UserProvider } from "@/stores/user/user-context";
@@ -39,13 +40,15 @@ export function RootProviders({ children }: RootProvidersProps) {
       <OAuthSessionSync />
       <UserProvider>
         <UserAuthSync />
-        <SidebarProvider>
-          <ChatProvider>
-            <ChatAuthSync />
-            {children}
-            <div id="toast-portal" />
-          </ChatProvider>
-        </SidebarProvider>
+        <PaymentProvider>
+          <SidebarProvider>
+            <ChatProvider>
+              <ChatAuthSync />
+              {children}
+              <div id="toast-portal" />
+            </ChatProvider>
+          </SidebarProvider>
+        </PaymentProvider>
       </UserProvider>
     </AuthProvider>
   );

src/stores/payment/index.ts

@@ -0,0 +1,9 @@
+/**
+ * @file Payment store barrel.
+ */
+
+export * from "./payment-context";
+export * from "./payment-events";
+export * from "./payment-machine";
+export * from "./payment-machine.actors";
+export * from "./payment-state";

src/stores/payment/payment-context.tsx

@@ -0,0 +1,96 @@
+"use client";
+
+/**
+ * PaymentContext：基于 XState v5 的 React Context Provider
+ */
+import {
+  type Dispatch,
+  type ReactNode,
+  createContext,
+  useContext,
+  useMemo,
+} from "react";
+import { useMachine } from "@xstate/react";
+
+import { paymentMachine } from "./payment-machine";
+import type {
+  PaymentEvent,
+  PaymentState as MachineContext,
+} from "./payment-machine";
+
+export interface PaymentContextState {
+  status: string;
+  plans: MachineContext["plans"];
+  selectedPlanId: string;
+  payChannel: MachineContext["payChannel"];
+  autoRenew: boolean;
+  agreed: boolean;
+  currentOrderId: string | null;
+  payParams: Record<string, unknown> | null;
+  orderStatus: MachineContext["orderStatus"];
+  vipStatus: MachineContext["vipStatus"];
+  errorMessage: string | null;
+  launchNonce: number;
+  isLoadingPlans: boolean;
+  isCreatingOrder: boolean;
+  isPollingOrder: boolean;
+  isCheckingVipStatus: boolean;
+  isPaid: boolean;
+}
+
+const PaymentStateCtx = createContext<PaymentContextState | null>(null);
+const PaymentDispatchCtx = createContext<Dispatch<PaymentEvent> | null>(null);
+
+export interface PaymentProviderProps {
+  children: ReactNode;
+}
+
+export function PaymentProvider({ children }: PaymentProviderProps) {
+  const [state, send] = useMachine(paymentMachine);
+
+  const paymentState = useMemo<PaymentContextState>(
+    () => ({
+      status: String(state.value),
+      plans: state.context.plans,
+      selectedPlanId: state.context.selectedPlanId,
+      payChannel: state.context.payChannel,
+      autoRenew: state.context.autoRenew,
+      agreed: state.context.agreed,
+      currentOrderId: state.context.currentOrderId,
+      payParams: state.context.payParams,
+      orderStatus: state.context.orderStatus,
+      vipStatus: state.context.vipStatus,
+      errorMessage: state.context.errorMessage,
+      launchNonce: state.context.launchNonce,
+      isLoadingPlans: state.matches("loadingPlans"),
+      isCreatingOrder: state.matches("creatingOrder"),
+      isPollingOrder:
+        state.matches("pollingOrder") || state.matches("waitingForPayment"),
+      isCheckingVipStatus: state.matches("checkingVipStatus"),
+      isPaid: state.matches("paid"),
+    }),
+    [state],
+  );
+
+  return (
+    <PaymentStateCtx.Provider value={paymentState}>
+      <PaymentDispatchCtx.Provider value={send}>
+        {children}
+      </PaymentDispatchCtx.Provider>
+    </PaymentStateCtx.Provider>
+  );
+}
+
+export function usePaymentState(): PaymentContextState {
+  const ctx = useContext(PaymentStateCtx);
+  if (!ctx)
+    throw new Error("usePaymentState must be used inside <PaymentProvider>");
+  return ctx;
+}
+
+export function usePaymentDispatch(): Dispatch<PaymentEvent> {
+  const ctx = useContext(PaymentDispatchCtx);
+  if (!ctx)
+    throw new Error("usePaymentDispatch must be used inside <PaymentProvider>");
+  return ctx;
+}

src/stores/payment/payment-events.ts

@@ -0,0 +1,16 @@
+/**
+ * Payment 状态机：事件联合
+ */
+import type { PayChannel } from "@/data/dto/payment";
+
+export type PaymentEvent =
+  | { type: "PaymentInit" }
+  | { type: "PaymentPlanSelected"; planId: string }
+  | { type: "PaymentPayChannelChanged"; payChannel: PayChannel }
+  | { type: "PaymentAutoRenewChanged"; autoRenew: boolean }
+  | { type: "PaymentAgreementChanged"; agreed: boolean }
+  | { type: "PaymentCreateOrderSubmitted" }
+  | { type: "PaymentRefreshVipStatus" }
+  | { type: "PaymentLaunchFailed"; errorMessage: string }
+  | { type: "PaymentErrorCleared" }
+  | { type: "PaymentReset" };

src/stores/payment/payment-machine.actors.ts

@@ -0,0 +1,54 @@
+/**
+ * Payment 状态机：Actors（异步服务）
+ */
+import { fromPromise } from "xstate";
+
+import {
+  CreatePaymentOrderResponse,
+  PayChannel,
+  PaymentOrderStatusResponse,
+  PaymentPlansResponse,
+  PaymentVipStatusResponse,
+} from "@/data/dto/payment";
+import { paymentRepository } from "@/data/repositories/payment_repository";
+import type { IPaymentRepository } from "@/data/repositories/interfaces";
+import { Result } from "@/utils";
+
+const paymentRepo: IPaymentRepository = paymentRepository;
+
+export const loadPaymentPlansActor = fromPromise<PaymentPlansResponse>(
+  async () => {
+    const result = await paymentRepo.getPlans();
+    if (Result.isErr(result)) throw result.error;
+    return result.data;
+  },
+);
+
+export const createPaymentOrderActor = fromPromise<
+  CreatePaymentOrderResponse,
+  { planId: string; payChannel: PayChannel; autoRenew: boolean }
+>(async ({ input }) => {
+  const result = await paymentRepo.createOrder(
+    input.planId,
+    input.payChannel,
+    input.autoRenew,
+  );
+  if (Result.isErr(result)) throw result.error;
+  return result.data;
+});
+
+export const pollPaymentOrderStatusActor = fromPromise<
+  PaymentOrderStatusResponse,
+  { orderId: string }
+>(async ({ input }) => {
+  const result = await paymentRepo.getOrderStatus(input.orderId);
+  if (Result.isErr(result)) throw result.error;
+  return result.data;
+});
+
+export const loadPaymentVipStatusActor =
+  fromPromise<PaymentVipStatusResponse>(async () => {
+    const result = await paymentRepo.getVipStatus();
+    if (Result.isErr(result)) throw result.error;
+    return result.data;
+  });

src/stores/payment/payment-machine.ts

@@ -0,0 +1,305 @@
+/**
+ * Payment 状态机（XState v5）
+ */
+import { assign, setup } from "xstate";
+
+import type { PaymentPlan } from "@/data/dto/payment";
+
+import type { PaymentEvent } from "./payment-events";
+import { initialState, type PaymentState } from "./payment-state";
+import {
+  createPaymentOrderActor,
+  loadPaymentPlansActor,
+  loadPaymentVipStatusActor,
+  pollPaymentOrderStatusActor,
+} from "./payment-machine.actors";
+
+export type { PaymentEvent } from "./payment-events";
+export type { PaymentState } from "./payment-state";
+export { initialState } from "./payment-state";
+
+const POLL_DELAY_MS = 4000;
+
+function toErrorMessage(error: unknown): string {
+  return error instanceof Error ? error.message : String(error);
+}
+
+function defaultAutoRenewForPlan(planId: string): boolean {
+  return !planId.includes("lifetime") && !planId.startsWith("dol_");
+}
+
+function getDefaultPlanId(plans: readonly PaymentPlan[]): string {
+  return (
+    plans.find((plan) => plan.planId === "vip_monthly")?.planId ??
+    plans.find((plan) => plan.orderType.startsWith("vip_"))?.planId ??
+    plans[0]?.planId ??
+    ""
+  );
+}
+
+function resetOrderState() {
+  return {
+    currentOrderId: null,
+    payParams: null,
+    orderStatus: null,
+    errorMessage: null,
+  } satisfies Partial<PaymentState>;
+}
+
+export const paymentMachine = setup({
+  types: {
+    context: {} as PaymentState,
+    events: {} as PaymentEvent,
+  },
+  actors: {
+    loadPlans: loadPaymentPlansActor,
+    createOrder: createPaymentOrderActor,
+    pollOrderStatus: pollPaymentOrderStatusActor,
+    loadVipStatus: loadPaymentVipStatusActor,
+  },
+}).createMachine({
+  /** @xstate-layout N4IgpgJg5mDOIC5QAcCGBPAtmAdgFwGIAFDbfAGVQFccBjACwDFUBLAG0gG0AGAXURQB7WCzwtBOASAAeiACwAmADQh0iAIwA2bnIB0CuQE5j67t20AOBQF9rKtFlx5dLCB2KknASRyie-JBBkYVFxSUDZBAVDPUMFdQs5dXUAVk0Adk0AZhSUlTUEdUMLXXV0w00LCyzzc00U23tPfBc3MA9HfAAlMAAzACc4egA1FmQAZTxUPCpYfylgkTEJKUjo2PjE5LTMnLzVRBTq3R1iuRTdzWz0xqDm5zZBVAgWHCgiNlQcWAIICTAXDgAG6CADWAIcZAeTxebw+X1gCFeINo0zC-nmgUWoRWEQ0WQsKV0lXSSQuFk0MUM6XyiAs6l0RmMxXSWS0FIUNjsd060Oer3en2+BDA-X6gn6umQnzwvQlmCl910j35cKFiORglRyxwGL4CxCOtW+MJxIspNS6QpVJpB0KpMZKTZBiSWXiMQst0hTl0g2e6A6UJ8fn1WMNYWNhRShiyujOCiq5yOSXUtKihm4jOilTkbKO6Ru3O9LT9EADJF58Jw4zAHFoeC4oaESwjeMKhlMunS3BqCiycm4VviWTTpnSCn02iycSdigMmi9StL5fuFYAwvQvjhaxuvjAIJjmzjwqBIgkrPoe9wFNxUhk5HI09TNLoauOMtxzRYO4ZF7zfWA-qBk4ACCVB4IIPTbgA7rubyNgER5Gm256xpocjVDkCgXNoCiaGmVSZjkSRJOhqTRlyTT-suwH4CBUCDGAUJwfuh5BOGuKnhoVREnhuTxCkWg4WmVp6AOphaEUKScvUf5QgBQEVsxfoNgA8v0ECiuMVAAEaYKIDYHk27EtpxMiIJyRRxuY6iKPScQ1I+drJOOXbqFh6RHLeTpyT6NFKU4a4qWA6maf02l6QZXDqIhJnHpGCQJG5FLnBUeHlPhdqVCUD5WhmpJVDGnpFkugFlrReA9AMQyjBMUwzHMxnYshXGFEYmZ8YJGbnOkWjKHa-aZnEFRWPEZR9b5JZlSuvIAKJihKa4cKggxGbFzWtq1RTqBOBjFISBYKFamRphRjIxJkTrXmkySTc4tAqQKoWir8-yAiC4KKv+D2AWIbzPf0SLAlqaISHq60cSe5lRCRr47VkGQUgS2SjtGeiksyn6JvSDQld9j3-RpL2iuKkrStMcr9Aqxb3QTUAA0DKKg7qfBsRtZlrGSxJpNwHb0vehijm+XYjfUD7xBhxVUfJwRsGwT1E-0r3bu9YIQkqsvy4TYWMyDOrgwaplQ2sMRxpsKY7NkuRptksYpEYiQI9GKTXoW0s+prCthcrAKap9NNSoIcte6KuvauirMxYb8VtusZsJBbGRW-sBTuTojJyJU1xuuh0Z3YHwfay9fwq376v-p7ReA5q4dg6zCgQ0bkZx3ECfbEnexPjUjKsjGmimAOWT9vnlf04rIoLWTMqU9TGtB1rY86zXzMG2GTex6brdbHeuzW85Y3nVkrIWNwgnJHh+fQawf1QIwEoBfgFU9LAYB4GzkORhSmZWjtO3GAO9QLBPj7K+DM-dM4fmqFLHk8kr6hDeHffoD9CDSFgPVAEqBegNn6AACgHGYAAlAQAOcCb6IOQe-derUjB6G-KfeoToMhD3OARC81JpxH2pNEGMbsYE+gYGAWgoIBS1UmNMWYPtVb+yVAIoRIixhiIamHFerMmofzbF-Ls9J4jcIAUcESHYTjTnoaYMwpJeEB1kcIt4oj6oSJLr7YG0jvr0EEdYqAtjxEamBrXFmvBOBRzXjHVqmif46P-uYfRdpM4MgyCNbYFQcgWJka4uRNiFF2J+CTCUUpp7yi+vJKx8i6peOUfrVRjdgnQ1Cdov+MRIlAKysUE4hIYw6ASPbWy+cinpJKQ1CepNckU3yZY1J7jPFKOXuU-xgSkKbWqdoLRv9dENNOvbYkboT45mSJSEerAIBPzgK-ShVSzwEiJCSMkVpKRGFtAUAshg4y2VPkUXMHZPJ7NcIc6qsARgZK8Sclq0MOwvk6kcXIMRNg2zkOkXQ4KYzYU5N2Ps+deisA4Ac5BQVfohUVhFfSeBDKAvmWc00lzLTWluaOB8jyCz9gTAyjsaRUXosgBVeapMlqAVWsSjmJoLnmiuZS6ko46i6ApL1OlGZsLXhZewNlyDn7HLUVQ6G7kyWCopTckVzk+ripvL2aogDoi2G5DgQQml4BYnuNHIFkQAC0mUCj2qJMyN17qMyn3zq4DgtqSXcVdZsPMmdFAJBHHaC4sL3JskMNGdp05fx43kiqWEgoER+r5YUMotKEiVHtrsQko5PKlAyjGfsmF7z52XBm42GhqQMm7L2TkVhpyslHGUWMw5BLlBPrkVk3S6YAxrc3fusKeE5DiZ61Mzk0hEhzmkct15eaUT4S0UeQ6gl2vkP1VON49BulJGYG6R7L7XwFOQm1m7-UIE0HhOG84Bx7quE6xAMQXyjp0e+bQPZuljOKYo2Yw62z9xKPUW95hEnfkaQUfu762naLiKyDInyIBAa2jeF8v9rzfmMAJHddIeylAATZKSJI5UYrQ2qvsRIew7JqIlKoQs70dqSCfbC34CymusEAA */
+  id: "payment",
+  initial: "idle",
+  context: initialState,
+  states: {
+    idle: {
+      on: {
+        PaymentInit: "loadingPlans",
+        PaymentRefreshVipStatus: "checkingVipStatus",
+      },
+    },
+
+    loadingPlans: {
+      invoke: {
+        src: "loadPlans",
+        onDone: {
+          target: "ready",
+          actions: assign(({ context, event }) => {
+            const plans = event.output.plans;
+            const selectedPlanId =
+              context.selectedPlanId || getDefaultPlanId(plans);
+            return {
+              plans,
+              selectedPlanId,
+              autoRenew: defaultAutoRenewForPlan(selectedPlanId),
+              errorMessage: null,
+            };
+          }),
+        },
+        onError: {
+          target: "ready",
+          actions: assign(({ event }) => ({
+            errorMessage: toErrorMessage(event.error),
+          })),
+        },
+      },
+    },
+
+    ready: {
+      on: {
+        PaymentInit: "loadingPlans",
+        PaymentPlanSelected: {
+          actions: assign(({ event }) => ({
+            ...resetOrderState(),
+            selectedPlanId: event.planId,
+            autoRenew: defaultAutoRenewForPlan(event.planId),
+          })),
+        },
+        PaymentPayChannelChanged: {
+          actions: assign(({ event }) => ({
+            payChannel: event.payChannel,
+            errorMessage: null,
+          })),
+        },
+        PaymentAutoRenewChanged: {
+          actions: assign(({ event }) => ({
+            autoRenew: event.autoRenew,
+            errorMessage: null,
+          })),
+        },
+        PaymentAgreementChanged: {
+          actions: assign(({ event }) => ({
+            agreed: event.agreed,
+            errorMessage: null,
+          })),
+        },
+        PaymentCreateOrderSubmitted: [
+          {
+            guard: ({ context }) =>
+              context.agreed && context.selectedPlanId.length > 0,
+            target: "creatingOrder",
+          },
+          {
+            actions: assign({
+              errorMessage:
+                "Choose a plan and accept the agreement before continuing.",
+            }),
+          },
+        ],
+        PaymentRefreshVipStatus: "checkingVipStatus",
+        PaymentErrorCleared: {
+          actions: assign({ errorMessage: null }),
+        },
+      },
+    },
+
+    creatingOrder: {
+      invoke: {
+        src: "createOrder",
+        input: ({ context }) => ({
+          planId: context.selectedPlanId,
+          payChannel: context.payChannel,
+          autoRenew: context.autoRenew,
+        }),
+        onDone: {
+          target: "pollingOrder",
+          actions: assign(({ context, event }) => ({
+            currentOrderId: event.output.orderId,
+            payParams: event.output.payParams,
+            orderStatus: "pending",
+            errorMessage: null,
+            launchNonce: context.launchNonce + 1,
+          })),
+        },
+        onError: {
+          target: "failed",
+          actions: assign(({ event }) => ({
+            errorMessage: toErrorMessage(event.error),
+          })),
+        },
+      },
+    },
+
+    pollingOrder: {
+      invoke: {
+        src: "pollOrderStatus",
+        input: ({ context }) => ({
+          orderId: context.currentOrderId ?? "",
+        }),
+        onDone: [
+          {
+            guard: ({ event }) => event.output.status === "paid",
+            target: "checkingVipStatus",
+            actions: assign(({ event }) => ({
+              orderStatus: event.output.status,
+              errorMessage: null,
+            })),
+          },
+          {
+            guard: ({ event }) => event.output.status === "failed",
+            target: "failed",
+            actions: assign(({ event }) => ({
+              orderStatus: event.output.status,
+              errorMessage: "Payment failed or was cancelled.",
+            })),
+          },
+          {
+            target: "waitingForPayment",
+            actions: assign(({ event }) => ({
+              orderStatus: event.output.status,
+              errorMessage: null,
+            })),
+          },
+        ],
+        onError: {
+          target: "failed",
+          actions: assign(({ event }) => ({
+            errorMessage: toErrorMessage(event.error),
+          })),
+        },
+      },
+    },
+
+    waitingForPayment: {
+      after: {
+        [POLL_DELAY_MS]: "pollingOrder",
+      },
+      on: {
+        PaymentReset: {
+          target: "ready",
+          actions: assign(resetOrderState),
+        },
+      },
+    },
+
+    checkingVipStatus: {
+      invoke: {
+        src: "loadVipStatus",
+        onDone: [
+          {
+            guard: ({ context }) => context.orderStatus === "paid",
+            target: "paid",
+            actions: assign(({ event }) => ({
+              vipStatus: event.output,
+              errorMessage: null,
+            })),
+          },
+          {
+            target: "ready",
+            actions: assign(({ event }) => ({
+              vipStatus: event.output,
+              errorMessage: null,
+            })),
+          },
+        ],
+        onError: [
+          {
+            guard: ({ context }) => context.orderStatus === "paid",
+            target: "paid",
+            actions: assign(({ event }) => ({
+              errorMessage: toErrorMessage(event.error),
+            })),
+          },
+          {
+            target: "ready",
+            actions: assign(({ event }) => ({
+              errorMessage: toErrorMessage(event.error),
+            })),
+          },
+        ],
+      },
+    },
+
+    paid: {
+      on: {
+        PaymentReset: {
+          target: "ready",
+          actions: assign(resetOrderState),
+        },
+        PaymentRefreshVipStatus: "checkingVipStatus",
+      },
+    },
+
+    failed: {
+      on: {
+        PaymentCreateOrderSubmitted: [
+          {
+            guard: ({ context }) =>
+              context.agreed && context.selectedPlanId.length > 0,
+            target: "creatingOrder",
+            actions: assign(resetOrderState),
+          },
+        ],
+        PaymentErrorCleared: {
+          target: "ready",
+          actions: assign({ errorMessage: null }),
+        },
+        PaymentReset: {
+          target: "ready",
+          actions: assign(resetOrderState),
+        },
+      },
+    },
+  },
+  on: {
+    PaymentLaunchFailed: {
+      target: ".failed",
+      actions: assign(({ event }) => ({
+        errorMessage: event.errorMessage,
+      })),
+    },
+  },
+});
+
+export type PaymentMachine = typeof paymentMachine;

src/stores/payment/payment-state.ts

@@ -0,0 +1,37 @@
+/**
+ * Payment 状态机：State 形状 + 初始值
+ */
+import type {
+  PayChannel,
+  PaymentOrderStatus,
+  PaymentPlan,
+  PaymentVipStatusResponse,
+} from "@/data/dto/payment";
+
+export interface PaymentState {
+  plans: PaymentPlan[];
+  selectedPlanId: string;
+  payChannel: PayChannel;
+  autoRenew: boolean;
+  agreed: boolean;
+  currentOrderId: string | null;
+  payParams: Record<string, unknown> | null;
+  orderStatus: PaymentOrderStatus | null;
+  vipStatus: PaymentVipStatusResponse | null;
+  errorMessage: string | null;
+  launchNonce: number;
+}
+
+export const initialState: PaymentState = {
+  plans: [],
+  selectedPlanId: "",
+  payChannel: "stripe",
+  autoRenew: true,
+  agreed: false,
+  currentOrderId: null,
+  payParams: null,
+  orderStatus: null,
+  vipStatus: null,
+  errorMessage: null,
+  launchNonce: 0,
+};

src/stores/user/user-machine.helpers.ts

@@ -58,7 +58,6 @@ export function toView(u: {
   isGuest?: boolean;
   isVip?: boolean;
   voiceMinutesRemaining?: number;
-  stripeCustomerId?: string | null;
 }): UserView {
   return {
     id: u.id,
@@ -72,7 +71,6 @@ export function toView(u: {
     isGuest: u.isGuest ?? false,
     isVip: u.isVip ?? false,
     voiceMinutesRemaining: u.voiceMinutesRemaining ?? 0,
-    stripeCustomerId: u.stripeCustomerId ?? null,
   };
 }