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/settings.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;

/// X-plore 비교 P1 (관리자 지시 10/18): X-plore 스타일 탐색기를 PNG 로 (JJ_SHOT_DIR, 없으면 임시 폴더).
/// 트리 맨 위 저장 장치 · 즐겨찾기 (c) · 표시 동그라미 늘 보이기 (⚖) · 한 창의 "갈 곳" 줄 (a).
/// 크기 412 (폰 세로, 한 창) · 960 (두 창), 언어 ko · en. 시험 파일은 임시 폴더에만, 설정은 메모리에만.
void main() {
  IntegrationTestWidgetsFlutterBinding.ensureInitialized();
  final out = Platform.environment['JJ_SHOT_DIR'] ?? p.join(Directory.systemTemp.path, 'jj_shots_xplore');

  for (final lang in ['ko', 'en']) {
    for (final (w, h) in [(412, 900), (960, 600)]) {
      testWidgets('X-plore 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 = Directory.systemTemp.createTempSync('jj_xpshot_');
        addTearDown(() => tmp.deleteSync(recursive: true));
        final a = Directory(p.join(tmp.path, 'Videos'))..createSync();
        final b = Directory(p.join(tmp.path, 'Backup'))..createSync();
        for (final n in ['Show S01', 'Movies']) {
          Directory(p.join(a.path, n)).createSync();
        }
        File(p.join(a.path, 'Show S01', 'ep01.mkv')).writeAsBytesSync(List.filled(5000, 0));
        File(p.join(a.path, 'notes.txt')).writeAsStringSync('memo');
        ExplorerPage.debugVolumes = () => [(a.path, 'C:'), (b.path, 'D:')];
        addTearDown(() => ExplorerPage.debugVolumes = null);
        final c = AppController(PlatformServices(mediaTool: ProcessMediaTool('x', 'y'), storage: DesktopStorageService()));
        c.settings
          ..explorerStyle = 'xplore'
          ..explorerLayout = w < 720 ? 'single' : 'dual'
          ..explorerOnePaneCopy = 'other'
          ..explorerPaths = [a.path, b.path]
          ..folderBookmarks = [FolderBookmark(name: 'Show S01', path: p.join(a.path, 'Show S01'))];
        final shotKey = GlobalKey();
        await t.runAsync(() => t.pumpWidget(RepaintBoundary(
              key: shotKey,
              child: MaterialApp(theme: buildTheme(), debugShowCheckedModeBanner: false, home: ExplorerPage(c: c)),
            )));
        Future<void> settle([int n = 12]) 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 r = shotKey.currentContext!.findRenderObject()! as RenderRepaintBoundary;
          final img = await t.runAsync(() => r.toImage());
          final bytes = await t.runAsync(() => img!.toByteData(format: ui.ImageByteFormat.png));
          Directory(out).createSync(recursive: true);
          File(p.join(out, 'xplore_${name}_${lang}_$w.png')).writeAsBytesSync(bytes!.buffer.asUint8List());
        }

        await settle(20);
        // Show S01 펼치기 · 즐겨찾기 펼치기
        await t.tap(find.text('Show S01').first);
        await settle();
        await t.tap(find.byKey(const ValueKey<String>('k2:\u0000favorites')).first);
        await settle();
        await shot('tree');
        await t.pumpWidget(const SizedBox());
        await settle(4);
      });
    }
  }
}