import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:patbond_flutter/core/network/api_exception.dart';
import 'package:patbond_flutter/core/theme/app_theme.dart';
import 'package:patbond_flutter/features/auth/auth_models.dart';
import 'package:patbond_flutter/features/community/community_controller.dart';
import 'package:patbond_flutter/features/home/home_page.dart';
import 'package:patbond_flutter/features/profile/profile_controller.dart';
import 'package:patbond_flutter/state/app_state.dart';

import '../../helpers/auth_test_helpers.dart';
import '../../helpers/community_test_helpers.dart';

/// T3.5-10 首页问候语真实化。
///
/// ADR-022 决策 D3.5-1：本迭代**只做问候语**，天气 / 位置 / 圈子 / 促销卡
/// 刻意保留为 demo 占位——本文件同时钉住「保留项仍在」，避免后续有人以
/// 「顺手清理」为名越出拍板范围（真要动它们得先改 ADR）。
void main() {
  late FakeCommunityRepository community;
  late CommunityController feed;

  setUp(() {
    community = FakeCommunityRepository();
    community.onFeed = (_, _) async => feedPage(const []);
    feed = CommunityController(repository: community);
  });

  Future<ProfileController> pumpHome(
    WidgetTester tester, {
    required FakeAuthRepository auth,
  }) async {
    tester.view.physicalSize = const Size(700, 1600);
    tester.view.devicePixelRatio = 1.0;
    addTearDown(tester.view.reset);
    final profile = ProfileController(
      authRepository: auth,
      communityRepository: community,
    );
    addTearDown(profile.dispose);
    await tester.pumpWidget(
      MaterialApp(
        theme: buildAppTheme(),
        home: Scaffold(
          body: HomePage(
            appState: AppState(),
            communityController: feed,
            profileController: profile,
            onOpenServices: (_) {},
            onOpenCompose: () {},
          ),
        ),
      ),
    );
    return profile;
  }

  /// 当前时段问候前缀（与页面实现同一套阈值；避免测试跟着挂钟漂移）。
  String greetingPrefix([DateTime? now]) {
    final hour = (now ?? DateTime.now()).hour;
    if (hour < 6) return '夜深了';
    if (hour < 11) return '早上好';
    if (hour < 14) return '中午好';
    if (hour < 18) return '下午好';
    return '晚上好';
  }

  testWidgets('有昵称：问候语用昵称，demo 宠物名「豆豆」不再出现', (tester) async {
    final profile = await pumpHome(
      tester,
      auth: FakeAuthRepository(
        meHandler: () async => buildProfile(username: 'llx', nickname: '小柴'),
      ),
    );
    await profile.refresh();
    await tester.pumpAndSettle();

    expect(find.text('${greetingPrefix()}，小柴 👋'), findsOneWidget);
    expect(find.textContaining('豆豆'), findsNothing);
  });

  testWidgets('无昵称：问候语回退 username（与资料页同规则）', (tester) async {
    final profile = await pumpHome(
      tester,
      auth: FakeAuthRepository(
        meHandler: () async => buildProfile(username: 'llx'),
      ),
    );
    await profile.refresh();
    await tester.pumpAndSettle();

    expect(find.text('${greetingPrefix()}，llx 👋'), findsOneWidget);
  });

  testWidgets('资料未到手：只问候不称名（不编造假名）', (tester) async {
    await pumpHome(
      tester,
      auth: FakeAuthRepository(
        meHandler: () async => throw const ApiNetworkException('断网'),
      ),
    );
    await tester.pumpAndSettle();

    expect(find.text('${greetingPrefix()} 👋'), findsOneWidget);
    // 不出现「问候，某某」形态（更不会退回 demo 宠物名）。
    expect(find.textContaining('${greetingPrefix()}，'), findsNothing);
  });

  testWidgets('改昵称后首页同步（与资料页共用同一控制器，无需手动刷新）', (tester) async {
    final auth = FakeAuthRepository(
      meHandler: () async => buildProfile(username: 'llx'),
      updateMeHandler: (_) async =>
          buildProfile(username: 'llx', nickname: '小柴'),
    );
    final profile = await pumpHome(tester, auth: auth);
    await profile.refresh();
    await tester.pumpAndSettle();
    expect(find.text('${greetingPrefix()}，llx 👋'), findsOneWidget);

    await profile.save(
      const UpdateMeRequest(nickname: PatchField<String>.value('小柴')),
    );
    await tester.pumpAndSettle();

    expect(find.text('${greetingPrefix()}，小柴 👋'), findsOneWidget);
  });

  testWidgets('刻意保留的 demo 占位仍在（ADR-022 钉死的范围）', (tester) async {
    final profile = await pumpHome(
      tester,
      auth: FakeAuthRepository(meHandler: () async => buildProfile()),
    );
    await profile.refresh();
    await tester.pumpAndSettle();

    // 天气 / 位置（外部服务未接）。
    expect(find.text('北京 · 朝阳区'), findsOneWidget);
    expect(find.text('28°C 晴'), findsOneWidget);
    // 圈子 = 话题（ADR-018 剪出）。
    expect(find.text('柴犬圈'), findsOneWidget);
    // 促销卡（M5 服务域）。
    expect(find.text('新用户首单立减 ¥20'), findsOneWidget);
  });
}