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/app/live_sync.dart';
import 'package:jj_mkvmaker/app/settings.dart';
import 'package:jj_mkvmaker/core/sync_tools.dart' show toCygwinPath;
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/monitor_page.dart';
import 'package:jj_mkvmaker/ui/theme.dart';
import 'package:path/path.dart' as p;

import 'support/temp_dir.dart';

/// P0 (관리자 3a 10/20): 미리 볼 수 없는 거르기 규칙 (merge 파일 - 안에 "H a.txt") 이 있는 지우기 포함 쌍 - 모니터링 카드의 빨간 줄
/// "자동으로 지우지 않습니다" · [지금 지우기 (확인)] 창 (FilterLimitNote · 체크) 을 412 · 960, ko · en · ja 로 찍는다.
/// 시험 폴더 안에서만 (창은 [나중에] - 지우지 않음).
/// 실행: flutter test integration_test\windows_lsync_p0_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_lsync_p0');
  final rsync = p.join(Directory.current.path, 'third_party', 'rsync', 'windows', 'rsync.exe');
  for (final lang in ['ko', 'en', 'ja']) {
    for (final (w, h) in [(412, 900), (960, 600)]) {
      testWidgets('미리 볼 수 없는 규칙의 쌍 $lang ${w}x$h', (t) async {
        if (!File(rsync).existsSync()) return markTestSkipped('앱에 든 rsync 가 없음');
        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_lsyncp0_shot_');
        final src = p.join(tmp.path, 's'), dst = p.join(tmp.path, 'd');
        for (final (dir, rel) in [(src, 'a.txt'), (src, 'b.txt'), (dst, 'a.txt'), (dst, 'old.log'), (dst, 'extra.txt')]) {
          File(p.join(dir, rel))
            ..createSync(recursive: true)
            ..writeAsStringSync('$dir/$rel');
        }
        File(p.join(tmp.path, 'rules.txt')).writeAsStringSync('H a.txt\n');
        final c = AppController(PlatformServices(mediaTool: ProcessMediaTool('x', 'y'), storage: DesktopStorageService()));
        c.settings
          ..copy.rsyncSource = 'custom'
          ..copy.rsyncPath = rsync
          ..copy.rsyncOptions = '-a --filter="merge ${toCygwinPath(p.join(tmp.path, 'rules.txt'))}"'
          ..copy.liveSyncPairs = [LiveSyncPair(src, dst, method: 'rsync', delete: true, deleteConfirmed: true)];
        final live = LiveSync(c)..start();
        addTearDown(live.dispose);
        final pair = c.settings.copy.liveSyncPairs.single;
        await t.runAsync(() => live.syncNow(pair));
        expect(live.noAutoDelete[LiveSync.keyOf(pair)], isNotEmpty);
        final shotKey = GlobalKey();
        await t.pumpWidget(MaterialApp(
          theme: buildTheme(),
          debugShowCheckedModeBanner: false,
          builder: (_, child) => RepaintBoundary(key: shotKey, child: child),
          home: MonitorPage(c: c),
        ));
        Future<void> settle([int n = 8]) async {
          for (var i = 0; i < n; i++) {
            await t.runAsync(() => Future<void>.delayed(const Duration(milliseconds: 80)));
            await t.pump(const Duration(milliseconds: 80));
          }
        }

        Future<void> shot(String name) async {
          await settle(3);
          expect(t.takeException(), isNull, reason: '$name 넘침');
          final b = shotKey.currentContext!.findRenderObject()! as RenderRepaintBoundary;
          final img = await t.runAsync(() => b.toImage());
          final bytes = await t.runAsync(() => img!.toByteData(format: ui.ImageByteFormat.png));
          Directory(out).createSync(recursive: true);
          File(p.join(out, 'lsync_p0_${name}_${lang}_$w.png')).writeAsBytesSync(bytes!.buffer.asUint8List());
        }

        await t.tap(find.text(tr('lsync (실시간 동기화)')));
        await settle();
        expect(find.text(tr('이 옵션의 일부 거르기 규칙은 미리 볼 수 없어 자동으로 지우지 않습니다')), findsOneWidget);
        await shot('1_card');
        await t.tap(find.text(tr('지금 지우기 (확인)')));
        await settle(12);
        expect(find.textContaining(tr('알고 실행합니다 (지울 목록이 실제와 다를 수 있음)')), findsOneWidget);
        await shot('2_now');
        await t.tap(find.text(tr('나중에')));
        await settle();
        expect(File(p.join(dst, 'old.log')).existsSync() && File(p.join(dst, 'a.txt')).existsSync(), isTrue, reason: '찍기만 - 지우지 않음');
      });
    }
  }
}