feat(client): pay 支付领域模型 + PaymentApi + 支付流控制器(轮询 activated)

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_013nMthbVEmQquxBRKb9Fj8u
2026-07-10 23:19:57 +08:00
parent 16b8823f1f
commit e66f79fdf6
7 changed files with 456 additions and 1 deletions
@@ -0,0 +1,80 @@
+import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:pangolin_vpn/models/payment.dart';
+import 'package:pangolin_vpn/services/auth_api.dart';
+import 'package:pangolin_vpn/services/payment_api.dart';
+import 'package:pangolin_vpn/state/payment_provider.dart';
+
+class _FakePaymentApi implements PaymentApi {
+  _FakePaymentApi();
+  int createCalls = 0, cancelCalls = 0, statusCalls = 0;
+  bool activated = false;
+  Exception? retryError;
+  String lastMethod = '';
+
+  @override
+  Future<List<PayCatalogItem>> catalog() async => const [];
+
+  @override
+  Future<PayOrder> createOrder({required String sku, required String method, Map<String, String>? metadata}) async {
+    createCalls++;
+    lastMethod = method;
+    return PayOrder(
+        orderNo: 'pay$createCalls',
+        session: PaySession(renderType: method == 'crypto' ? 'crypto_address' : 'redirect', payload: const {'url': 'https://x'}, expiresAt: null));
+  }
+
+  @override
+  Future<PayOrderStatus> orderStatus(String orderNo) async {
+    statusCalls++;
+    return PayOrderStatus(orderNo: orderNo, payStatus: activated ? 'succeeded' : 'pending', activated: activated, expiresAt: null);
+  }
+
+  @override
+  Future<PayOrder> retry(String orderNo, {required String method, Map<String, String>? metadata}) async {
+    if (retryError != null) throw retryError!;
+    return PayOrder(orderNo: orderNo, session: PaySession(renderType: 'redirect', payload: const {'url': 'https://y'}, expiresAt: null));
+  }
+
+  @override
+  Future<void> cancel(String orderNo) async {
+    cancelCalls++;
+  }
+}
+
+ProviderContainer _container(_FakePaymentApi api) {
+  final c = ProviderContainer(overrides: [paymentApiProvider.overrideWithValue(api)]);
+  addTearDown(c.dispose);
+  return c;
+}
+
+void main() {
+  const item = PayCatalogItem(sku: 'pro_month', plan: 'pro', days: 31, priceMinor: 2999, currency: 'CNY');
+
+  test('start → awaitingPayment,pollOnce 到 activated 变 succeeded', () async {
+    final api = _FakePaymentApi();
+    final c = _container(api);
+    final ctl = c.read(paymentFlowProvider.notifier);
+    await ctl.start(item, 'crypto');
+    expect(c.read(paymentFlowProvider).phase, PaymentPhase.awaitingPayment);
+    await ctl.pollOnce();
+    expect(c.read(paymentFlowProvider).phase, PaymentPhase.awaitingPayment);
+    api.activated = true;
+    await ctl.pollOnce();
+    expect(c.read(paymentFlowProvider).phase, PaymentPhase.succeeded);
+  });
+
+  test('switchMethod 遇 CURRENCY_MISMATCH → cancel 旧单 + 新 method 重新下单', () async {
+    final api = _FakePaymentApi();
+    final c = _container(api);
+    final ctl = c.read(paymentFlowProvider.notifier);
+    await ctl.start(item, 'crypto');
+    api.retryError = const AuthApiException(
+        statusCode: 409, messageZh: 'x', messageEn: 'x', code: 'CURRENCY_MISMATCH');
+    await ctl.switchMethod('alipay');
+    expect(api.cancelCalls, 1);
+    expect(api.createCalls, 2, reason: '换币种必须新单(pay 契约)');
+    expect(api.lastMethod, 'alipay');
+    expect(c.read(paymentFlowProvider).order?.orderNo, 'pay2');
+  });
+}