@Tags(['design'])
library;

import 'dart:convert';
import 'dart:io';
import 'dart:ui' as ui;

import 'package:fancake/core/data/repositories.dart';
import 'package:fancake/core/router/app_router.dart';
import 'package:fancake/core/theme/app_theme.dart';
import 'package:fancake/features/auth/auth_repository.dart';
import 'package:fancake/features/eclipse/eclipse_data.dart';
import 'package:fancake/features/eclipse/eclipse_defend_screen.dart';
import 'package:fancake/features/home/home_onboarding_screen.dart';
import 'package:fancake/features/home/nebula_create_screen.dart';
import 'package:fancake/features/home/planet_create_screen.dart';
import 'package:flutter/material.dart';
import 'package:flutter/rendering.dart';
import 'package:flutter/services.dart';
import 'package:flutter_test/flutter_test.dart';

import '../eclipse_stubs.dart';
import 'home_fixtures.dart';

/// 디자인 일치 그룹 A(F1 홈 · F7 이클립스) 대조 렌더.
///
/// 공유 하네스(`design_match_test.dart`)와 같은 방식으로 찍되, 표본을 Figma 사본의
/// 기본 상태에 맞춘다 — 홈은 라이브 띠·이클립스 경보가 없는 「ZAP 닫힘」 상태다.
/// 실행: `DESIGN_MATCH_OUT=<폴더> fvm flutter test --tags design test/design_match/a_test.dart`

const _width = 375.0;
const _padding = FakeViewPadding(top: 48 * 2, bottom: 34 * 2);

typedef Build = Future<Widget> Function(Repositories r);

class Shot {
  const Shot(
    this.id, {
    this.build,
    this.tab,
    this.h = 812,
    this.after,
    this.repos = QuietRepos.new,
  });
  final String id;
  final QuietRepos Function() repos;
  final Build? build;
  final String? tab;
  final double h;
  final Future<void> Function(WidgetTester t)? after;
}

/// 이클립스 화면 — 사본 문구의 「60초」가 나오도록 마감을 60초 뒤로 둔다.
Widget _defend(EclipseState state) => EclipseDefendScreen(
  repository: FakeEclipseRepository(state: state),
  fandomId: 'bts',
);

DateTime get _in60 => DateTime.now().add(const Duration(seconds: 60));

final shots = <Shot>[
  // 사본 주 프레임(`252:159354`)은 헤더 지갑의 「아이템 구입」 시트가 열린 상태다.
  Shot(
    'F1-01',
    tab: '/home',
    after: (t) async {
      await t.tap(find.byTooltip('아이템'));
      await _settle(t);
    },
  ),
  // 기본 상태(`343:205364`) · ZAP 옵션 「아이템 선택」(`343:204868`) — 그룹 대조 폴더용.
  Shot('F1-01d', tab: '/home'),
  // 아래 구획(TODAY'S QUEST 등) 눈 대조용 긴 렌더.
  Shot('F1-01L', tab: '/home', h: 1400),
  Shot(
    'F1-01i',
    tab: '/home',
    after: (t) async {
      final hold = await t.startGesture(t.getCenter(find.text('기여')));
      await t.pump(const Duration(seconds: 2));
      await hold.up();
      await _settle(t);
      await t.tap(find.text('아이템'));
      await _settle(t);
    },
  ),
  Shot('F1-02', build: (r) async => const NebulaCreateScreen()),
  // 성장 완료는 HOME 탭 성운 상태를 그대로 찍는다(ZAP 은 HOME 의 갤럭시 연결로 뜬다).
  Shot('F1-03', tab: '/home', repos: NebulaRepos.new),
  Shot('F1-04', build: (r) async => const PlanetCreateScreen()),
  // 이름 입력 뒤(`340:75644`) · 색 단계(`373:358639` 의 칩 줄) — 그룹 대조 폴더에서만 쓴다.
  Shot(
    'F1-02n',
    build: (r) async => const NebulaCreateScreen(),
    after: (t) async {
      await t.enterText(find.byType(TextField), 'BTS_RM');
      await _settle(t);
    },
  ),
  Shot(
    'F1-04c',
    build: (r) async => const PlanetCreateScreen(),
    after: (t) async {
      await t.tap(find.text('다음'));
      await _settle(t);
    },
  ),
  // 사본 주 프레임은 「+」 시트가 열린 상태다.
  Shot(
    'F1-05',
    build: (r) async => const HomeOnboardingScreen(),
    after: (t) async {
      await t.tap(find.bySemanticsLabel('행성 생성 또는 가입'));
      await _settle(t);
    },
  ),
  Shot(
    'F7-01',
    h: 815,
    build: (r) async => _defend(eclipseFixture(endsAt: _in60)),
  ),
  // 흔드는 중 — 사본 문구의 「10초」 자리는 남은 시간이다.
  Shot(
    'F7-02',
    h: 815,
    build: (r) async => _defend(
      eclipseFixture(endsAt: DateTime.now().add(const Duration(seconds: 10))),
    ),
    after: (t) async {
      await t.tap(find.text('흔들기 어려우면 눌러서 참여'));
      await _settle(t);
    },
  ),
  Shot(
    'F7-03',
    h: 815,
    build: (r) async => _defend(eclipseFixture(defended: true)),
  ),
  // 실패 변형(`494:14292`) — 공유 비교에는 없는 ID 라 그룹 대조 폴더에서만 쓴다.
  Shot(
    'F7-02f',
    h: 815,
    build: (r) async => _defend(eclipseFixture(result: EclipseResult.failure)),
  ),
];

Future<void> _settle(WidgetTester t) async {
  for (var i = 0; i < 6; i++) {
    await t.pump(const Duration(milliseconds: 300));
  }
}

Future<void> _loadFonts() async {
  final manifest =
      json.decode(await rootBundle.loadString('FontManifest.json')) as List;
  for (final font in manifest.cast<Map<String, dynamic>>()) {
    final loader = FontLoader(font['family'] as String);
    for (final f in (font['fonts'] as List).cast<Map<String, dynamic>>()) {
      loader.addFont(rootBundle.load(Uri.decodeFull(f['asset'] as String)));
    }
    await loader.load();
  }
  await (FontLoader(
    'Roboto',
  )..addFont(rootBundle.load('assets/fonts/42dotSans[wght].ttf'))).load();
}

void main() {
  final out = Platform.environment['DESIGN_MATCH_OUT'];
  if (out == null) return;
  setUpAll(() async {
    Directory(out).createSync(recursive: true);
    await _loadFonts();
    final messenger =
        TestDefaultBinaryMessengerBinding.instance.defaultBinaryMessenger;
    messenger.setMockMethodCallHandler(
      const MethodChannel('dev.fluttercommunity.plus/sensors/method'),
      (_) async => null,
    );
    messenger.setMockStreamHandler(
      const EventChannel('dev.fluttercommunity.plus/sensors/accelerometer'),
      MockStreamHandler.inline(onListen: (_, _) {}),
    );
  });

  for (final s in shots) {
    testWidgets(s.id, (t) async {
      t.view.devicePixelRatio = 2;
      t.view.physicalSize = Size(_width * 2, s.h * 2);
      t.view.padding = _padding;
      t.view.viewPadding = _padding;
      addTearDown(t.view.reset);

      final repos = s.repos();
      final boundary = GlobalKey();
      final navigator = GlobalKey<NavigatorState>();
      Widget? pushed;
      Widget app;
      if (s.tab != null) {
        final router = buildRouter(
          AuthRepository()..signInWithMockSession(),
          repositories: repos,
        );
        router.go(s.tab!);
        app = MaterialApp.router(
          theme: buildAppTheme(),
          debugShowCheckedModeBanner: false,
          routerConfig: router,
        );
      } else {
        pushed = (await t.runAsync(() => s.build!(repos)))!;
        app = MaterialApp(
          theme: buildAppTheme(),
          debugShowCheckedModeBanner: false,
          navigatorKey: navigator,
          home: const SizedBox(),
        );
      }
      await t.pumpWidget(RepaintBoundary(key: boundary, child: app));
      if (pushed case final screen?) {
        navigator.currentState!.push(
          MaterialPageRoute<void>(builder: (_) => screen),
        );
      }
      await _settle(t);
      await s.after?.call(t);
      await t.runAsync(() async {
        for (final e in find.byType(Image).evaluate().toList()) {
          await precacheImage((e.widget as Image).image, e);
        }
      });
      await _settle(t);

      await t.runAsync(() async {
        final image =
            await (boundary.currentContext!.findRenderObject()!
                    as RenderRepaintBoundary)
                .toImage(pixelRatio: 2);
        final png = await image.toByteData(format: ui.ImageByteFormat.png);
        await File('$out/${s.id}.png').writeAsBytes(png!.buffer.asUint8List());
        image.dispose();
      });
      final texts = [
        for (final e in find.byType(RichText).evaluate())
          if (e.renderObject case final RenderParagraph p
              when p.attached && p.text.toPlainText().trim().isNotEmpty)
            {
              'text': p.text.toPlainText(),
              'family': p.text.style?.fontFamily,
              'size': p.text.style?.fontSize,
              'weight': p.text.style?.fontWeight?.value,
              'color': p.text.style?.color?.toARGB32().toRadixString(16),
              'rect': [
                for (final v in [
                  p.localToGlobal(Offset.zero).dx,
                  p.localToGlobal(Offset.zero).dy,
                  p.size.width,
                  p.size.height,
                ])
                  v.roundToDouble(),
              ],
            },
      ];
      File(
        '$out/${s.id}.texts.json',
      ).writeAsStringSync(const JsonEncoder.withIndent(' ').convert(texts));
      expect(t.takeException(), isNull);
    });
  }
}