import 'package:flutter/material.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:go_router/go_router.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:jiu_client/core/auth/auth_state.dart';
import 'package:jiu_client/core/theme/themes.dart';
import 'package:jiu_client/models/shop.dart';
import 'package:jiu_client/providers/shop_provider.dart';
import 'package:jiu_client/providers/license_provider.dart';
import 'package:jiu_client/providers/update_provider.dart';
import 'package:jiu_client/providers/connectivity_provider.dart';
import 'package:jiu_client/providers/session_heartbeat.dart';
import 'package:jiu_client/screens/shell/app_shell.dart';
import 'package:jiu_client/widgets/app_status_bar.dart';

import '../support/golden_harness.dart';

/// design-distill 阶段4：app 外壳（顶栏两级品牌 + 主题器 + 通知铃 + 分组侧栏 + 状态栏）
/// golden × 三主题。照原型 shell.js/statusbar.js 重建后的回归基准 + 与原型保真比对基准。
/// 与原型对齐：门店=鼎晟酒行/DSJH-001、用户=王经理(管理员)、版本 v1.0.72、库存页激活。
/// 更新基准：flutter test --update-goldens test/golden/app_shell_golden_test.dart

class _FakeAuth extends AuthNotifier {
  _FakeAuth() {
    state = const AuthState(
      user: AuthUser(
          accessToken: 't',
          refreshToken: 'r',
          id: 1,
          username: 'wang',
          realName: '王经理',
          shopNo: 'DSJH-001',
          shopId: 1,
          role: 'admin'),
    );
  }
}

class _FakeUpdate extends UpdateNotifier {
  @override
  Future<AppUpdateInfo?> build() async => null;
}

class _FakeLicense extends LicenseNotifier {
  @override
  Future<LicenseInfo?> build() async => null;
}

const _shop = ShopInfo(
    id: 1,
    code: 'DSJH-001',
    name: '鼎晟酒行',
    address: '浙江省杭州市',
    phone: '0571-88886666',
    managerName: '王经理');

List<Override> _overrides() => [
      authStateProvider.overrideWith((ref) => _FakeAuth()),
      shopInfoProvider.overrideWith((ref) => _shop),
      licenseProvider.overrideWith(() => _FakeLicense()),
      updateProvider.overrideWith(() => _FakeUpdate()),
      // 跳过联网首检 / 不启动心跳，避免后台 Timer 泄漏
      connectivityProvider
          .overrideWith((ref) => ConnectivityNotifier(skipInit: true)),
      sessionHeartbeatProvider.overrideWith((ref) => SessionHeartbeat(ref)),
      appVersionProvider.overrideWith((ref) => 'v1.0.72'),
      isReadonlyProvider.overrideWithValue(false),
    ];

// 外壳 nav 引用 9 个分支序号（入/出库·库存·财务·往来·基础数据·设备·设置·关于）。
// 全部空白内容，仅供外壳渲染；初始定位库存（index 2）以匹配原型激活态。
StatefulShellBranch _branch(String path) => StatefulShellBranch(routes: [
      GoRoute(path: path, builder: (_, __) => const SizedBox.expand()),
    ]);

GoRouter _router() => GoRouter(
      initialLocation: '/inventory',
      routes: [
        StatefulShellRoute.indexedStack(
          builder: (ctx, state, shell) => AppShell(navigationShell: shell),
          branches: [
            _branch('/stock-in'),
            _branch('/stock-out'),
            _branch('/inventory'),
            _branch('/finance'),
            _branch('/partners'),
            _branch('/products'),
            _branch('/devices'),
            _branch('/settings'),
            _branch('/about'),
          ],
        ),
      ],
    );

void main() {
  TestWidgetsFlutterBinding.ensureInitialized();
  SharedPreferences.setMockInitialValues({});
  // 冻结状态栏时钟，确定化 golden（关走字，避免像素抖动 / pending timer）。
  AppStatusBar.clock = () => DateTime(2026, 7, 13, 9, 30, 15);
  AppStatusBar.ticking = false;

  for (final theme in const ['a', 'b', 'c']) {
    testWidgets('app shell · theme $theme', (tester) async {
      await ensureGoldenFonts();
      tester.view.physicalSize = const Size(2560, 1800); // 1280×900 @2x
      tester.view.devicePixelRatio = 2.0;
      addTearDown(tester.view.resetPhysicalSize);
      addTearDown(tester.view.resetDevicePixelRatio);

      await tester.pumpWidget(ProviderScope(
        overrides: _overrides(),
        child: MaterialApp.router(
          debugShowCheckedModeBanner: false,
          theme: withGoldenFont(buildTheme(theme)),
          routerConfig: _router(),
        ),
      ));
      await tester.pumpAndSettle();

      await expectLater(
        find.byType(MaterialApp),
        matchesGoldenFile('goldens/app_shell_$theme.png'),
      );
    });
  }
}