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/core/vault_store.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/theme.dart';
import 'package:jj_mkvmaker/ui/vault_page.dart';
import 'package:path/path.dart' as p;

/// 암호 보관함 화면 (만들기 · 목록 (폴더 · 파일)) 을 PNG 로 (JJ_SHOT_DIR, JJ_SHOT_THEME=light 면 밝은 화면).
/// 보관함 · 시험 파일은 임시 폴더에만 만들고 끝나면 지운다
void main() {
  IntegrationTestWidgetsFlutterBinding.ensureInitialized();
  if (Platform.environment['JJ_SHOT_THEME'] == 'light') JjColors.use(Brightness.light);

  testWidgets('보관함 화면 그림', (t) async {
    final out = Platform.environment['JJ_SHOT_DIR'] ?? p.join(Directory.systemTemp.path, 'jj_shots_vault');
    Directory(out).createSync(recursive: true);
    final tmp = Directory.systemTemp.createTempSync('jj_vaultshot_');
    addTearDown(() => tmp.deleteSync(recursive: true));
    final c = AppController(PlatformServices(mediaTool: ProcessMediaTool('x', 'y'), storage: DesktopStorageService()));
    c.settings.vault.enabled = true;
    final key = GlobalKey();

    Future<void> shot(String name, Size size, Directory dir) async {
      vaultDirOf = () async => dir;
      t.view.physicalSize = size;
      t.view.devicePixelRatio = 1;
      await t.runAsync(() => t.pumpWidget(RepaintBoundary(
          key: key, child: MaterialApp(theme: buildTheme(), debugShowCheckedModeBanner: false, home: VaultPage(c: c, iterations: 1000)))));
      for (var i = 0; i < 15; i++) {
        await t.runAsync(() => Future<void>.delayed(const Duration(milliseconds: 100)));
        await t.pump(const Duration(milliseconds: 50));
      }
      final boundary = key.currentContext!.findRenderObject()! as RenderRepaintBoundary;
      final image = await t.runAsync(() => boundary.toImage());
      final bytes = await t.runAsync(() => image!.toByteData(format: ui.ImageByteFormat.png));
      File(p.join(out, 'vault_$name.png')).writeAsBytesSync(bytes!.buffer.asUint8List());
      await t.pumpWidget(const SizedBox());
    }

    // 만들기 화면
    await shot('create_412', const Size(412, 800), Directory(p.join(tmp.path, 'new')));
    // 열린 목록: 보관함을 미리 만들고 [열기] 까지
    final dir = Directory(p.join(tmp.path, 'vault'));
    final v = await t.runAsync(() => Vault.create(dir, 'pw', iterations: 1000));
    final f = File(p.join(tmp.path, '사진.jpg'))..writeAsBytesSync(List.filled(2048, 7));
    await t.runAsync(() async {
      await v!.add(f.path);
      await v.add(f.path, folder: '여행');
      await v.mkdir('빈 폴더');
    });
    for (final (name, size) in [('open_412', const Size(412, 800)), ('open_960', const Size(960, 600))]) {
      vaultDirOf = () async => dir;
      t.view.physicalSize = size;
      t.view.devicePixelRatio = 1;
      await t.runAsync(() => t.pumpWidget(RepaintBoundary(
          key: key, child: MaterialApp(theme: buildTheme(), debugShowCheckedModeBanner: false, home: VaultPage(c: c, iterations: 1000)))));
      for (var i = 0; i < 10; i++) {
        await t.runAsync(() => Future<void>.delayed(const Duration(milliseconds: 100)));
        await t.pump(const Duration(milliseconds: 50));
      }
      await t.enterText(find.byType(TextField), 'pw');
      await t.tap(find.byType(FilledButton));
      for (var i = 0; i < 30 && find.text('사진.jpg').evaluate().isEmpty; i++) {
        await t.runAsync(() => Future<void>.delayed(const Duration(milliseconds: 100)));
        await t.pump(const Duration(milliseconds: 50));
      }
      await t.pump(const Duration(milliseconds: 300));
      final boundary = key.currentContext!.findRenderObject()! as RenderRepaintBoundary;
      final image = await t.runAsync(() => boundary.toImage());
      final bytes = await t.runAsync(() => image!.toByteData(format: ui.ImageByteFormat.png));
      File(p.join(out, 'vault_$name.png')).writeAsBytesSync(bytes!.buffer.asUint8List());
      await t.pumpWidget(const SizedBox());
    }
    t.view.reset();
  });
}