import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:pangolin_vpn/l10n/strings_en.dart';
import 'package:pangolin_vpn/screens/notifications_page.dart';
import 'package:pangolin_vpn/services/notices_api.dart';
import 'package:pangolin_vpn/state/notices_provider.dart';

import '../helpers/harness.dart';

void main() {
  testWidgets('通知页真实数据渲染:type pill + 未读红点 + version 去更新按钮 + 进页清读',
      (tester) async {
    final now = DateTime.now();
    final data = NoticesData(items: [
      NoticeItem(
        id: 1,
        type: 'reward',
        titleZh: '测试到账',
        titleEn: 'Reward credited',
        bodyZh: '你获得了 7 天会员',
        bodyEn: 'You earned 7 days membership',
        link: '',
        publishedAt: now,
        unread: true,
      ),
      NoticeItem(
        id: 2,
        type: 'version',
        titleZh: '新版本发布',
        titleEn: 'New version available',
        bodyZh: '',
        bodyEn: '',
        link: '',
        publishedAt: now,
        unread: false,
      ),
      NoticeItem(
        id: 3,
        type: 'news',
        titleZh: '产品新闻',
        titleEn: 'Product news',
        bodyZh: '',
        bodyEn: '',
        link: '',
        publishedAt: now,
        unread: false,
      ),
    ], unreadCount: 1);

    final fake = _FakeNotifier(data);

    await tester.binding.setSurfaceSize(const Size(420, 900));
    addTearDown(() => tester.binding.setSurfaceSize(null));

    await tester.pumpWidget(wrapThemed(
      NotificationsScreen(t: StringsEn()),
      overrides: [noticesProvider.overrideWith(() => fake)],
    ));
    await tester.pumpAndSettle();

    // reward 行 type pill 文案(StringsEn 的 'Credited')在。
    expect(find.text('Credited'), findsOneWidget);
    // reward 行未读红点在(fake.markAllRead 不改写数据,仅记录调用)。
    expect(find.byKey(const ValueKey('notif-unread-1')), findsOneWidget);
    // version 行「去更新」按钮在(t.lang.updateNow == 'Update now')。
    expect(find.text('Update now'), findsOneWidget);
    // 首帧后调用了 markAllRead()。
    expect(fake.markAllReadCalled, isTrue);
  });
}

/// 照 invite_page_test.dart 的 `_FakeNotifier extends InviteNotifier` 模式:override
/// build() 直接返回固定数据;markAllRead 只记录调用、不改写数据(便于断言未读态渲染
/// 与「已调用清读」两件事互不干扰)。
class _FakeNotifier extends NoticesNotifier {
  _FakeNotifier(this._v);
  final NoticesData _v;
  bool markAllReadCalled = false;

  @override
  Future<NoticesData?> build() async => _v;

  @override
  Future<void> markAllRead() async {
    markAllReadCalled = true;
  }
}