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/app_controller.dart';
import 'package:jj_mkvmaker/app/i18n_controller.dart';
import 'package:jj_mkvmaker/l10n/tr.dart';
import 'package:jj_mkvmaker/platform/windows/desktop_storage_service.dart';
import 'package:jj_mkvmaker/platform/windows/process_media_tool.dart';
import 'package:jj_mkvmaker/services/platform_services.dart';
import 'package:jj_mkvmaker/ui/explorer_page.dart';
import 'package:jj_mkvmaker/ui/theme.dart';
import 'package:path/path.dart' as p;

import 'support/temp_dir.dart';

/// 28 확인 (10/20): 좁은 Rsync 화면의 [오른쪽] 탭을 처음 볼 때 그 창의 지금 폴더가 보이는지 · 확인 창의 체크 제목
/// "(--remove-source-files)" 가 "(--" 에서 갈리지 않는지를 412 · 960, ko · en · ja 로 찍는다 (시험 폴더 안에서만, [취소]).
/// 실행: flutter test integration_test\windows_rsync_narrow_shot_test.dart -d windows   (JJ_SHOT_DIR 에 PNG)
void main() {
  IntegrationTestWidgetsFlutterBinding.ensureInitialized();
  final out = Platform.environment['JJ_SHOT_DIR'] ?? p.join(Directory.systemTemp.path, 'jj_shots_rsync_narrow');
  for (final lang in ['ko', 'en', 'ja']) {
    for (final (w, h) in [(412, 900), (960, 600)]) {
      testWidgets('좁은 Rsync 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));
        final tmp = testTempDir('jj_rsnarrow_shot_');
        // 맨 위에 폴더가 많고 (C: 처럼) 두 창의 지금 폴더는 깊은 곳
        for (var i = 0; i < 60; i++) {
          Directory(p.join(tmp.path, 'a${i.toString().padLeft(2, '0')}')).createSync();
        }
        final l = p.join(tmp.path, 'zz', 'deep', 'L'), r = p.join(tmp.path, 'zz', 'deep', 'R');
        File(p.join(l, 'sub', 'a.txt'))
          ..createSync(recursive: true)
          ..writeAsStringSync('a');
        Directory(p.join(r, 'rsub')).createSync(recursive: true);
        for (var i = 0; i < 20; i++) {
          Directory(p.join(tmp.path, 'zz${i.toString().padLeft(2, '0')}')).createSync();
        }
        ExplorerPage.debugVolumes = () => [(tmp.path, 'T:')];
        addTearDown(() => ExplorerPage.debugVolumes = null);
        final c = AppController(PlatformServices(mediaTool: ProcessMediaTool('x', 'y'), storage: DesktopStorageService()));
        c.settings
          ..explorerOrientation = 'side'
          ..rsyncPaths = [l, r];
        final shotKey = GlobalKey();
        await t.pumpWidget(MaterialApp(
          theme: buildTheme(),
          debugShowCheckedModeBanner: false,
          builder: (_, child) => RepaintBoundary(key: shotKey, child: child),
          home: ExplorerPage(c: c, rsync: true),
        ));
        Future<void> settle([int n = 10]) async {
          for (var i = 0; i < n; i++) {
            await t.runAsync(() => Future<void>.delayed(const Duration(milliseconds: 60)));
            await t.pump(const Duration(milliseconds: 60));
          }
        }

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

        await settle(20);
        final narrow = find.text('${tr('오른쪽')} · R').evaluate().isNotEmpty;
        await t.tap(find.text('sub').hitTestable());
        await settle();
        if (narrow) {
          await t.tap(find.text('${tr('오른쪽')} · R'));
          await settle(15);
          expect(find.text('rsub').hitTestable(), findsOneWidget, reason: '[오른쪽] 탭을 처음 보면 지금 폴더');
          await shot('1_right_tab');
        }
        await t.tap(find.text('rsub').hitTestable());
        await settle();
        await t.tap(find.text(tr('좌 → 우')).first);
        await settle(25);
        await shot('2_confirm');
        await t.tap(find.text(tr('취소')).last);
        await settle();
        expect(File(p.join(l, 'sub', 'a.txt')).existsSync(), isTrue, reason: '찍기만 - 실행하지 않음');
      });
    }
  }
}