import 'dart:async';
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/subtitle_editor_controller.dart';
import 'package:jj_mkvmaker/core/encode_options.dart';
import 'package:jj_mkvmaker/core/languages.dart';
import 'package:jj_mkvmaker/core/models.dart';
import 'package:jj_mkvmaker/core/srt.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/subtitle_editor_page.dart';
import 'package:jj_mkvmaker/ui/theme.dart';
import 'package:jj_mkvmaker/ui/video_adjust_dialog.dart';
import 'package:path/path.dart' as p;

import 'support/temp_dir.dart';

/// 관리자 지시 (10/21, 28 찾음): ① 화면 · 색 보정 창 - 고른 비율 칩 ("세로 9:16") 은 ✓ 만 (그림 위에 체크가 겹치지 않게)
/// ② 자막 편집 화면 - 제목은 "자막 편집", 파일 이름은 그 아래 한 줄 (가운데를 줄여 끝 .srt 가 보이게). ko · ja × 412 · 960
void main() {
  IntegrationTestWidgetsFlutterBinding.ensureInitialized();
  final out = Platform.environment['JJ_SHOT_DIR'] ?? '';

  for (final lang in ['ko', 'ja']) {
    for (final (w, h) in [(412, 900), (960, 600)]) {
      testWidgets('화면 · 색 보정 칩 · 자막 편집 제목 $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_ui2shot_');
        appTempInto(tmp);
        final video = p.join(tmp.path, '아주 긴 이름의 시험용 동영상 파일 - 제1화 고화질 버전.mp4');
        final ffmpeg = p.join(Directory.current.path, 'third_party', 'ffmpeg', 'windows', 'ffmpeg.exe');
        final r = await t.runAsync(() => Process.run(ffmpeg, [
              '-y', '-v', 'error', '-f', 'lavfi', '-i', 'testsrc2=size=640x360:rate=10:duration=2', //
              '-c:v', 'libx264', '-pix_fmt', 'yuv420p', video,
            ]));
        expect(r!.exitCode, 0, reason: '${r.stderr}');
        final c = AppController(PlatformServices(mediaTool: ProcessMediaTool.locate(), storage: DesktopStorageService()));
        await t.runAsync(() async {
          await c.init();
          await c.addVideos([video]);
        });
        final shotKey = GlobalKey();
        final navKey = GlobalKey<NavigatorState>();
        await t.pumpWidget(MaterialApp(
          theme: buildTheme(),
          debugShowCheckedModeBanner: false,
          navigatorKey: navKey,
          builder: (context, child) => RepaintBoundary(key: shotKey, child: child),
          home: const Scaffold(body: SizedBox.expand()),
        ));
        Future<void> settle([int n = 10]) async {
          for (var i = 0; i < n; i++) {
            await t.runAsync(() => Future<void>.delayed(const Duration(milliseconds: 80)));
            await t.pump();
          }
        }

        Future<void> shot(String name) async {
          await settle(3);
          expect(t.takeException(), isNull, reason: '$name 넘침');
          if (out.isEmpty) return;
          final b = shotKey.currentContext!.findRenderObject()! as RenderRepaintBoundary;
          final img = await t.runAsync(() => b.toImage());
          final bytes = await t.runAsync(() => img!.toByteData(format: ui.ImageByteFormat.png));
          Directory(out).createSync(recursive: true);
          File(p.join(out, 'ui2_${name}_${lang}_$w.png')).writeAsBytesSync(bytes!.buffer.asUint8List());
        }

        // ① 화면 · 색 보정 - "세로 9:16" 을 고른다
        unawaited(showVideoAdjust(navKey.currentContext!, c));
        await settle(20);
        final portrait = find.text(FrameChoice.portrait.label);
        await t.ensureVisible(portrait);
        await t.tap(portrait);
        await settle();
        final chip = find.ancestor(of: portrait, matching: find.byType(ChoiceChip));
        expect(t.widget<ChoiceChip>(chip).selected, isTrue);
        expect(t.widget<ChoiceChip>(chip).showCheckmark, isFalse, reason: '그림 위에 체크가 겹치지 않게');
        expect(find.descendant(of: chip, matching: find.byIcon(Icons.check)), findsOneWidget, reason: '✓ 만');
        expect(find.descendant(of: chip, matching: find.byIcon(Icons.crop_portrait)), findsNothing);
        await shot('1_adjust');
        navKey.currentState!.popUntil((r) => r.isFirst);
        await settle();

        // ② 자막 편집 - 긴 파일 이름
        final v = c.videos.single;
        final s = SubtitleEntry.external(path: p.join(tmp.path, '아주 긴 이름의 시험용 동영상 파일 - 제1화 고화질 버전.ko.srt'), language: languageOf('ko'));
        v.subtitles.add(s);
        final editor = SubtitleEditorController(parseSrt('1\n00:00:01,000 --> 00:00:02,000\n안녕\n'), saveCharset: 'UTF-8');
        unawaited(navKey.currentState!.push(MaterialPageRoute<void>(builder: (_) => SubtitleEditorPage(app: c, video: v, entry: s, editor: editor))));
        await settle(12);
        expect(find.text(tr('자막 편집')), findsOneWidget, reason: '제목은 "자막 편집" 만');
        final name = find.textContaining('.srt');
        expect(name, findsOneWidget, reason: '파일 이름은 아래 한 줄 - 끝 (.srt) 이 보임');
        await shot('2_editor');
        expect(t.widget<Text>(name).data!.endsWith('.srt'), isTrue, reason: '${t.widget<Text>(name).data}');
      });
    }
  }
}