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

import 'package:flutter/material.dart';
import 'package:flutter/rendering.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:integration_test/integration_test.dart';
import 'package:jj_mkvmaker/app/i18n_controller.dart';
import 'package:jj_mkvmaker/ui/file_tools.dart';
import 'package:jj_mkvmaker/ui/theme.dart';
import 'support/temp_dir.dart';
import 'package:path/path.dart' as p;

/// 관리자 지시 (10/18): X-plore P3 화면을 PNG 로 (JJ_SHOT_DIR, 없으면 임시 폴더) - 해시 창 · 폴더 속성 · 16진 보기.
/// 크기 412 (폰 세로) · 960, 언어 ko · en · ja. 시험 파일은 임시 폴더에만 (끝나면 지움). 실행: flutter test integration_test\windows_p3_shot_test.dart -d windows
void main() {
  IntegrationTestWidgetsFlutterBinding.ensureInitialized();
  // ⑦ 밝은 화면 캡처: JJ_SHOT_THEME=light (JJ_SHOT_DIR 를 따로 두어 어두운 것과 견줌)
  if (Platform.environment['JJ_SHOT_THEME'] == 'light') JjColors.use(Brightness.light);
  final out = Platform.environment['JJ_SHOT_DIR'] ?? p.join(Directory.systemTemp.path, 'jj_shots_p3');
  for (final lang in ['ko', 'en', 'ja']) {
    for (final (w, h) in [(412, 900), (960, 600)]) {
      testWidgets('P3 화면 $lang ${w}x$h', (t) async {
        t.view.physicalSize = Size(w.toDouble(), h.toDouble());
        t.view.devicePixelRatio = 1;
        addTearDown(t.view.reset);
        await t.runAsync(() => i18n.apply(lang, save: false));
        addTearDown(() => i18n.apply('ko', save: false));
        // 관리자 지시 (10/24): 폴더 이름 · 시각을 실행마다 같게 (캡처가 흔들리지 않게 - 시험 쪽에서만)
        final tmp = testFixedTempDir('jj_p3shot_fixed');
        final file = File(p.join(tmp.path, '영상 폴더', 'ep01 긴 이름의 동영상 파일.mkv'))
          ..createSync(recursive: true)
          ..writeAsBytesSync(List.generate(5000, (i) => i % 256));
        File(p.join(tmp.path, '영상 폴더', '속', 'a.txt'))
          ..createSync(recursive: true)
          ..writeAsStringSync('hello');
        pinTestTimes(tmp);
        final navKey = GlobalKey<NavigatorState>();
        final shotKey = GlobalKey();
        await t.pumpWidget(RepaintBoundary(
          key: shotKey,
          child: MaterialApp(
              theme: buildTheme(), debugShowCheckedModeBanner: false, navigatorKey: navKey, home: const Scaffold(body: SizedBox.expand())),
        ));
        BuildContext ctx() => navKey.currentContext!;
        Future<void> settle([int n = 8]) async {
          for (var i = 0; i < n; i++) {
            await t.runAsync(() => Future<void>.delayed(const Duration(milliseconds: 60)));
            await t.pump();
          }
        }

        Future<void> shot(String name) async {
          await settle(3);
          final b = shotKey.currentContext!.findRenderObject()! as RenderRepaintBoundary;
          final img = await t.runAsync(() => b.toImage());
          final bytes = await t.runAsync(() => img!.toByteData(format: ui.ImageByteFormat.png));
          Directory(out).createSync(recursive: true);
          File(p.join(out, 'p3_${name}_${lang}_$w.png')).writeAsBytesSync(bytes!.buffer.asUint8List());
        }

        Future<void> closeAll() async {
          navKey.currentState!.popUntil((r) => r.isFirst);
          await settle(4);
        }

        // 해시 창 (다 계산된 뒤 · 붙여 넣은 값과 비교)
        showFileHash(ctx(), file.path);
        await settle(12);
        await shot('hash');
        await t.enterText(find.byType(TextField).first, 'abc');
        await settle();
        await shot('hash_compare');
        await closeAll();
        // 폴더 속성
        showFolderProperties(ctx(), p.join(tmp.path, '영상 폴더'));
        await settle(12);
        await shot('props');
        await closeAll();
        // 16진 보기
        navKey.currentState!.push(MaterialPageRoute<void>(builder: (_) => HexViewerPage(path: file.path)));
        await settle(12);
        await shot('hex');
        await closeAll();
      });
    }
  }
}