import 'dart:async';
import 'dart:math' as math;
import 'package:flutter/material.dart';
import 'package:flutter/semantics.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:fancake/core/data/planet_visual_state.dart';
import 'package:fancake/core/theme/app_theme.dart';
import 'package:fancake/core/ui/planet_25d.dart';
import 'package:fancake/features/galaxy/galaxy_data.dart';
import 'package:fancake/features/galaxy/galaxy_search_screen.dart';
import 'package:fancake/features/planet/planet_detail_screen.dart';
import 'package:fancake/features/galaxy/widgets/galaxy_mini_map.dart';
import 'package:fancake/features/galaxy/widgets/galaxy_web_view.dart';
import 'package:fancake/features/home/home_data.dart';
import 'package:fancake/features/home/home_screen.dart';
import 'package:fancake/features/home/widgets/home_hero.dart';
import 'package:fancake/features/planet/planet_data.dart';
import 'package:fancake/features/quest/quest_data.dart';
import 'eclipse_stubs.dart';
import 'galaxy_mini_map_capture_test.dart' show loadAppFonts, mineAt;
import 'perf_paint_test.dart' show medianPaintMicros, paintBudgetMicros;

/// 프로토타입 궤도 간격 450 × Mass Volume 1.5 × Orbit Exp 1.0.
const _spacing = 675.0;

GalaxySnapshot _snap(List<PlanetNode> planets) =>
    GalaxySnapshot(planets: planets, myPop: 0);

const _base = [
  PlanetNode(
    id: 'a',
    name: 'Alpha',
    rank: 1,
    fpi: 5000,
    members: 10,
    online: 1204,
    isMine: true,
  ),
  PlanetNode(
    id: 'b',
    name: 'Beta',
    rank: 2,
    fpi: 4000,
    members: 10,
    online: 30,
  ),
  PlanetNode(
    id: 'c',
    name: 'Gamma',
    rank: 3,
    fpi: 1000,
    members: 10,
    online: 20,
  ),
];

void main() {
  late int opened;

  Future<void> pumpMap(
    WidgetTester tester,
    GalaxySnapshot data, {
    double size = 140,
  }) => tester.pumpWidget(
    MaterialApp(
      home: Center(
        child: GalaxyMiniMap(data: data, onOpen: () => opened++, size: size),
      ),
    ),
  );

  GalaxyMiniMapPainter painterOf(WidgetTester tester) => tester
      .widgetList<CustomPaint>(
        find.descendant(
          of: find.byType(GalaxyMiniMap),
          matching: find.byType(CustomPaint),
        ),
      )
      .map((w) => w.painter)
      .whereType<GalaxyMiniMapPainter>()
      .single;

  setUp(() => opened = 0);

  testWidgets('실데이터의 내 행성 HUD 숫자를 그리고 궤도는 순위로 정한다', (tester) async {
    await pumpMap(tester, _snap(_base));
    final label = tester.getSemantics(find.byType(GalaxyMiniMap)).label;
    expect(label, contains('ALPHA · RANK #1 · FPI: 5000 · LIVE: 1,204'));
    final p = painterOf(tester);
    expect(p.orbitOf('a'), 0);
    expect(p.orbitOf('b'), _spacing);
    expect(p.orbitOf('c'), 2 * _spacing);
    expect(tester.takeException(), isNull);
  });

  testWidgets('행성 색은 팬덤 colorKey 를 따르고, 없거나 모르는 키는 순번 색으로 둔다', (tester) async {
    await pumpMap(
      tester,
      _snap([
        for (final (i, p) in _base.indexed)
          PlanetNode(
            id: p.id,
            name: p.name,
            rank: p.rank,
            fpi: p.fpi,
            members: p.members,
            online: p.online,
            isMine: p.isMine,
            colorKey: const ['gold', 'violet', null][i],
          ),
      ]),
    );
    final p = painterOf(tester);
    expect(p.colorOf('a'), planetColorOf('gold'));
    // 모르는 키(서버 기본값 violet)·미제공은 FPI 순번 프로토타입 색(2번째 · 3번째).
    expect(p.colorOf('b'), const Color(0xFF8B5CF6));
    expect(p.colorOf('c'), const Color(0xFF10B981));
  });

  testWidgets('누르면 열리고, 가로로 끌면 장면이 돈다(±180° 한계)', (tester) async {
    await pumpMap(tester, _snap(_base));
    await tester.tap(find.byType(GalaxyMiniMap));
    expect(opened, 1);

    await tester.drag(find.byType(GalaxyMiniMap), const Offset(30, 0));
    await tester.pump();
    final turned = painterOf(tester).rotation;
    expect(turned, greaterThan(0));

    await tester.drag(find.byType(GalaxyMiniMap), const Offset(-2000, 0));
    await tester.pump();
    expect(painterOf(tester).rotation, closeTo(-math.pi, 1e-9));
    expect(opened, 1, reason: '끌기는 열기가 아니다');
  });

  testWidgets('순위가 바뀌면 궤도와 HUD 숫자가 따라 바뀐다', (tester) async {
    await pumpMap(tester, _snap(_base));
    await pumpMap(
      tester,
      _snap(const [
        PlanetNode(
          id: 'c',
          name: 'Gamma',
          rank: 1,
          fpi: 6000,
          members: 10,
          online: 20,
        ),
        PlanetNode(
          id: 'a',
          name: 'Alpha',
          rank: 2,
          fpi: 5100,
          members: 10,
          online: 1300,
          isMine: true,
        ),
        PlanetNode(
          id: 'b',
          name: 'Beta',
          rank: 3,
          fpi: 4000,
          members: 10,
          online: 30,
        ),
      ]),
    );
    final p = painterOf(tester);
    expect(p.orbitOf('c'), 0);
    expect(p.orbitOf('a'), _spacing);
    expect(
      tester.getSemantics(find.byType(GalaxyMiniMap)).label,
      contains('ALPHA · RANK #2 · FPI: 5100 · LIVE: 1,300'),
    );
  });

  testWidgets('움직임이 켜져 있으면 새 궤도로 미끄러져 간다(프로토타입 lerp)', (tester) async {
    Planet25D.animationsEnabled = true;
    addTearDown(() => Planet25D.animationsEnabled = false);
    await pumpMap(tester, _snap(_base));
    // 한 프레임 dt 는 1/20 초로 잘리므로 프레임 단위로 흘린다.
    for (var i = 0; i < 30; i++) {
      await tester.pump(const Duration(milliseconds: 16));
    }
    final mid = painterOf(tester).orbitOf('c')!;
    expect(mid, greaterThan(0));
    expect(mid, lessThan(2 * _spacing));
    for (var i = 0; i < 600; i++) {
      await tester.pump(const Duration(milliseconds: 16));
    }
    expect(painterOf(tester).orbitOf('c'), closeTo(2 * _spacing, 5));
  });

  // 10/4 실기기 — 140pt 에서 HUD 글상자가 미니맵 대부분을 덮어 궤도·행성이 안 보였다.
  testWidgets('140 에서는 내 행성 간략 카드만(C-105) — 장면을 덮지 않는 크기', (tester) async {
    await tester.runAsync(loadAppFonts);
    await pumpMap(tester, _snap(_base));
    final p = painterOf(tester);
    expect(p.compactText, [
      ('ALPHA', GalaxyMiniMapPainter.compactNamePt),
      ('#1 · FPI 5,000', GalaxyMiniMapPainter.compactLinePt),
      ('LIVE 1,204', GalaxyMiniMapPainter.compactLinePt),
    ]);
    for (final (_, pt) in p.compactText) {
      expect(pt, greaterThanOrEqualTo(8));
    }
    final card = p.compactSize;
    expect(card.width, lessThanOrEqualTo(140 * GalaxyMiniMapPainter.hudFloor));
    expect(
      card.width * card.height,
      lessThan(140 * 140 * 0.2),
      reason: '카드는 미니맵 넓이의 1/5 미만',
    );
    expect(p.hudWidthOf('b'), 0, reason: '다른 행성 카드는 뺀다');
    expect(p.hudWidthOf('c'), 0);
  });

  testWidgets('긴 행성 이름은 말줄임 — 순위·FPI·LIVE 숫자는 줄이지 않는다', (tester) async {
    await tester.runAsync(loadAppFonts);
    await pumpMap(
      tester,
      _snap(const [
        PlanetNode(
          id: 'a',
          name: 'FANUZU 데모 행성 아주 긴 이름 #1',
          rank: 1,
          fpi: 123456,
          members: 10,
          online: 1204,
          isMine: true,
        ),
      ]),
    );
    final p = painterOf(tester);
    expect(p.compactText.skip(1).map((t) => t.$1), [
      '#1 · FPI 123,456',
      'LIVE 1,204',
    ]);
    for (final (_, pt) in p.compactText.skip(1)) {
      expect(pt, GalaxyMiniMapPainter.compactLinePt);
    }
    expect(
      p.compactSize.width,
      lessThanOrEqualTo(140 * GalaxyMiniMapPainter.hudFloor + 0.01),
    );
  });

  testWidgets('내 행성이 1위가 아니어도 첫 화면 가운데에 둔다(C-103)', (tester) async {
    await pumpMap(tester, _snap(mineAt(3)));
    final p = painterOf(tester);
    expect(p.worldOf('3')!.distance, lessThan(1), reason: '내 행성 = 장면 원점');
    expect(p.orbitOf('3'), 2 * _spacing, reason: '궤도는 FPI 순위 그대로');
    expect(p.worldOf('1')!.distance, greaterThan(_spacing / 2));
  });

  testWidgets('320 에서는 모든 행성에 프로토타입 카드를 그린다', (tester) async {
    await pumpMap(tester, _snap(_base), size: 320);
    final p = painterOf(tester);
    for (final id in ['a', 'b', 'c']) {
      expect(p.hudWidthOf(id), greaterThan(0), reason: id);
    }
    expect(p.compactText, isEmpty);
  });

  testWidgets('FPI 상위 10개 + 순위 밖 내 행성만 그린다', (tester) async {
    await pumpMap(
      tester,
      _snap([
        for (var i = 0; i < 12; i++)
          PlanetNode(
            id: 'p$i',
            name: 'P$i',
            rank: i + 1,
            fpi: 1000 - i,
            members: 1,
            online: 1,
            isMine: i == 11,
          ),
      ]),
    );
    final p = painterOf(tester);
    expect(p.orbitOf('p9'), isNotNull);
    expect(p.orbitOf('p10'), isNull);
    expect(p.orbitOf('p11'), isNotNull);
  });

  testWidgets('보조 기술은 버튼 하나로 읽고 눌러 연다', (tester) async {
    final handle = tester.ensureSemantics();
    await pumpMap(tester, _snap(_base));
    final node = tester.getSemantics(find.byType(GalaxyMiniMap));
    expect(node.getSemanticsData().hasAction(SemanticsAction.tap), isTrue);
    node.owner!.performAction(node.id, SemanticsAction.tap);
    expect(opened, 1);
    handle.dispose();
  });

  testWidgets('게이지 조절 UI 는 없다(C-51)', (tester) async {
    await pumpMap(tester, _snap(_base));
    expect(find.byType(Slider), findsNothing);
    expect(find.byType(RangeSlider), findsNothing);
    for (final gauge in [
      'Mass Volume',
      'Orbit Exp.',
      'HUD Size',
      'HUD Dist.',
      'Camera Height',
      'View Rotation',
      'Action Flare',
    ]) {
      expect(find.text(gauge), findsNothing);
    }
  });

  test('행성 12개 한 프레임 그리기가 예산 안에 든다', () {
    final painter = GalaxyMiniMapPainter()
      ..update([
        for (var i = 0; i < 12; i++)
          PlanetNode(
            id: 'p$i',
            name: 'PLANET $i',
            rank: i + 1,
            fpi: 300000 - i * 20000,
            members: 100,
            online: 10,
            isMine: i == 2,
          ),
      ])
      ..settle();
    addTearDown(painter.dispose);
    final micros = medianPaintMicros(painter, const Size(140, 140));
    expect(micros, lessThan(paintBudgetMicros));
  });

  Future<StreamController<PlanetVisualState>> pumpHome(
    WidgetTester tester,
  ) async {
    tester.view.physicalSize = const Size(1080, 2400);
    tester.view.devicePixelRatio = 3;
    addTearDown(tester.view.reset);
    final states = StreamController<PlanetVisualState>.broadcast();
    addTearDown(states.close);
    await tester.pumpWidget(
      MaterialApp(
        theme: buildAppTheme(),
        home: HomeScreen(
          repository: const SampleHomeRepository(),
          questRepository: const SampleQuestRepository(),
          eclipse: const NoEclipseRepository(),
          galaxyRepository: const SampleGalaxyRepository(),
          planetRepository: samplePlanetRepository,
          watchPlanet: (_) => states.stream,
        ),
      ),
    );
    await tester.pump();
    await tester.pump(const Duration(seconds: 1));
    return states;
  }

  GalaxyMiniMapPainter expandedPainter(WidgetTester tester) => tester
      .widgetList<CustomPaint>(
        find.descendant(
          of: find.byType(HomeGalaxyHero),
          matching: find.byType(CustomPaint),
        ),
      )
      .map((w) => w.painter)
      .whereType<GalaxyMiniMapPainter>()
      .single;

  testWidgets('HOME 미니맵 자리 — Figma 「홈」 히어로 우측 상단', (tester) async {
    final states = await pumpHome(tester);
    final mini = find.byType(GalaxyMiniMap);
    expect(mini, findsOneWidget);
    // C-113 자리 = Figma 「홈」(2097:16428) 히어로 우측 상단 · 오른쪽 여백 0.
    expect(tester.getSize(mini), const Size.square(HomeHero.miniMapSize));
    expect(
      tester.getTopRight(mini).dx,
      closeTo(tester.getSize(find.byType(HomeScreen)).width, 1),
    );
    expect(
      tester.getTopLeft(mini).dy,
      closeTo(
        tester.getTopLeft(find.byType(HomeHero)).dy +
            MediaQuery.paddingOf(tester.element(mini)).top -
            48 + // 사본 y 는 상태 표시줄 48 을 포함한다(HomeHero 와 같은 환산).
            HomeHero.miniMapTop,
        1,
      ),
    );
    await tester.pumpWidget(const SizedBox());
    expect(states.hasListener, isFalse);
  });

  testWidgets(
    '미니맵을 누르면 히어로가 「GALAXY 맵 확장」(343:211127)으로 바뀌고, GALAXY · 뒤로가기로 돌아온다',
    (tester) async {
      await pumpHome(tester);
      await tester.tap(find.byType(GalaxyMiniMap));
      await tester.pump();
      await tester.pump(const Duration(milliseconds: 300));
      expect(find.byType(HomeGalaxyHero), findsOneWidget);
      expect(find.byType(HomeHero), findsNothing);
      // 확장 맵 하나만 — 상단 미니맵은 사라진다. TODAY'S QUEST 등 아래 구획은 그대로.
      expect(find.byType(GalaxyMiniMap), findsOneWidget);
      expect(find.text('TODAY’S QUEST'), findsOneWidget);
      // 히어로 680 안 y124~680 = 맵(375×556), 아래 54 「GALAXY」 바.
      final map = find.byType(GalaxyMiniMap);
      expect(tester.getSize(map), const Size(360, 556)); // 시험 창 폭 360.
      expect(find.text('GALAXY'), findsOneWidget);

      await tester.tap(find.byKey(const ValueKey('galaxy-bar-close')));
      await tester.pump();
      await tester.pump(const Duration(milliseconds: 300));
      expect(find.byType(HomeGalaxyHero), findsNothing);
      expect(find.byType(HomeHero), findsOneWidget);

      await tester.tap(find.byType(GalaxyMiniMap));
      await tester.pump();
      await tester.pump(const Duration(milliseconds: 300));
      expect(find.byType(HomeGalaxyHero), findsOneWidget);
      await tester.binding.handlePopRoute();
      await tester.pump();
      await tester.pump(const Duration(milliseconds: 300));
      expect(find.byType(HomeGalaxyHero), findsNothing);
      expect(find.byType(HomeScreen), findsOneWidget);
      expect(tester.takeException(), isNull);
    },
  );

  testWidgets('확장 맵 — 다른 행성을 누르면 그 행성이 화면 중심이 된다(2008:14486)', (tester) async {
    await tester.pumpWidget(
      MaterialApp(
        home: Center(
          child: SizedBox(
            width: 375,
            height: 556,
            child: GalaxyMiniMap.expanded(
              data: _snap(_base),
              onOpenPlanet: (_) {},
            ),
          ),
        ),
      ),
    );
    await tester.pump();
    final painter = tester
        .widgetList<CustomPaint>(find.byType(CustomPaint))
        .map((w) => w.painter)
        .whereType<GalaxyMiniMapPainter>()
        .single;
    expect(painter.focusId, 'a');
    // Figma `343:211127` 축척 — HUD 카드는 고정 144×72, 줌과 무관.
    expect(painter.hudRectOf('a')!.size, GalaxyMiniMapPainter.figmaHud);
    painter.zoomTo(2);
    await tester.pump();
    expect(painter.hudRectOf('a')!.size, GalaxyMiniMapPainter.figmaHud);
    painter.zoomTo(1);
    await tester.pump();
    final origin = tester.getTopLeft(find.byType(GalaxyMiniMap));
    final at = painter.screenOf('b')!;
    expect(painter.hudRectOf('b')!.contains(at), isFalse);
    await tester.tapAt(origin + at);
    await tester.pump();
    expect(painter.focusId, 'b');
    // 카메라가 따라가 고른 행성이 가운데로 온다.
    await tester.pump(const Duration(seconds: 3));
    expect(painter.screenOf('b')!.dx, closeTo(375 / 2, 2));
  });

  testWidgets('확장 맵 — 끌어 회전 · 핀치 줌 · HUD 탭 상세 · 돋보기 검색', (tester) async {
    await pumpHome(tester);
    await tester.tap(find.byType(GalaxyMiniMap));
    await tester.pump();
    await tester.pump(const Duration(milliseconds: 300));
    final painter = expandedPainter(tester);
    final map = find.byType(GalaxyMiniMap);
    final origin = tester.getTopLeft(map);
    expect(painter.focusId, isNotNull);

    // 끌기 — 회전(±180° 한계).
    await tester.dragFrom(tester.getCenter(map), const Offset(2000, 0));
    await tester.pump(const Duration(seconds: 3));
    expect(painter.rotation, closeTo(math.pi, 0.05));

    // 핀치 — 두 손가락 벌리기.
    final c = tester.getCenter(map);
    final a = await tester.startGesture(c - const Offset(40, 0));
    final b = await tester.startGesture(c + const Offset(40, 0));
    await a.moveBy(const Offset(-40, 0));
    await b.moveBy(const Offset(40, 0));
    await tester.pump();
    await a.up();
    await b.up();
    await tester.pump();
    expect(painter.zoom, greaterThan(1.2));

    // HUD 탭 → 행성 상세.
    await tester.pump(const Duration(milliseconds: 16));
    final focus = painter.focusId!;
    final hud = painter.hudRectOf(focus)!;
    expect(hud.isEmpty, isFalse);
    await tester.tapAt(origin + hud.center);
    await tester.pump();
    await tester.pump(const Duration(seconds: 1));
    expect(find.byType(PlanetDetailScreen), findsOneWidget);
    Navigator.of(tester.element(find.byType(PlanetDetailScreen))).pop();
    await tester.pump();
    await tester.pump(const Duration(seconds: 1));

    // 돋보기 → 갤럭시 검색.
    await tester.tap(find.byIcon(Icons.search));
    await tester.pump();
    await tester.pump(const Duration(seconds: 1));
    expect(find.byType(GalaxySearchScreen), findsOneWidget);
  });

  test('WebView 로 넘기는 데이터 — FPI 상위 10 + 순위 밖 내 행성 · 실제 FPI · 색은 RGB 정수', () {
    final planets = [
      for (var i = 1; i <= 12; i++)
        PlanetNode(
          id: 'p$i',
          name: 'P$i',
          rank: i,
          fpi: 100000 - i,
          members: 1,
          online: i,
          isMine: i == 12,
        ),
    ];
    final list = GalaxyWebView.payload(_snap(planets));
    expect(list, hasLength(11));
    expect(list.first['fpi'], 99999);
    expect(list.last['id'], 'p12');
    expect(list.last['mine'], isTrue);
    expect(list.every((p) => (p['color']! as int) <= 0xFFFFFF), isTrue);
  });

  testWidgets('미니맵 → 확장은 같은 지도 위젯 상태를 옮긴다(WebView 재생성 없음)', (tester) async {
    await pumpHome(tester);
    final before = tester.state(find.byType(GalaxyWebView));
    expect(tester.widget<GalaxyWebView>(find.byType(GalaxyWebView)).expanded, isFalse);
    await tester.tap(find.byType(GalaxyMiniMap));
    await tester.pump();
    await tester.pump(const Duration(milliseconds: 300));
    expect(tester.state(find.byType(GalaxyWebView)), same(before));
    expect(tester.widget<GalaxyWebView>(find.byType(GalaxyWebView)).expanded, isTrue);
  });
}