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Source code

We have made the main source code publicly available. We hope it will be helpful as a reference for app development.

● Japanese ● ご注意 ● このページで公開しているのはDartコードのみです。アプリの動作には画像・音声・多言語テキストなどの追加データが必要なため、ここに掲載している情報だけではアプリを完全に再現することはできません。 ● アプリは継続的に機能拡張しているため、ストアで公開している最新版とコード内容が異なる場合があります。 ● コードはコピーして自由にご利用いただけますが、著作権は放棄していません。そのため、コード全体の再掲載はご遠慮ください。一部の引用や改変しての再掲載は問題ありません。個人利用・商用利用を問わず、アプリ開発の参考として自由にお使いください。 ● このコードは「お手本」として公開しているものではありません。ミニアプリとして作成しているため、変数名など細部に配慮していない箇所や誤りが含まれる可能性があります。参考程度にご覧ください。 ● 他の開発者の公開コードを参考にした部分も含まれています。アプリ開発の熟練者が書いたコードではない点もご了承ください。 ● ここはエンジニア向けの技術情報共有サービスではないため、詳細な説明は省略しています。 ● 本コードは無保証であり、動作や品質を保証するものではありません。
Copyright© エーオーシステム株式会社

● English ● Notice ● Only the Dart source code is provided on this page. Additional assets such as images, audio files, and multilingual text are required for the application to function. Therefore, the information here alone is not sufficient to fully reproduce the app. ● The app is continuously being improved, so the code published here may differ from the latest version available on the app stores. ● You are free to copy and use the code, but the copyright is not waived. For this reason, please refrain from redistributing (reposting) the entire code. Partial quotation or redistribution of modified portions is allowed. You may use the code freely for reference in your own app development, whether for personal or commercial use. ● This code is not intended to serve as a coding example or best practice. As this is a small sample app, some variable names and details may lack refinement, and there may be mistakes. Please use it only as a reference. ● Some parts of the code are based on publicly available examples from other developers. Please note that this code was not written by an expert in Android app development. ● This is not a technical knowledge-sharing service for engineers, so detailed explanations are omitted. ● The code is provided "as is" without any warranty of any kind.
Copyright© ao-system, Inc.

Last build date: 2026-05-28

name: wattconversion
description: "WattConversion"

publish_to: 'none'

version: 1.5.3+22

environment:
  sdk: ^3.11.5

dependencies:   #flutter pub upgrade --major-versions
  flutter:
    sdk: flutter
  cupertino_icons: ^1.0.8
  package_info_plus: ^10.1.0
  shared_preferences: ^2.0.17
  flutter_localizations:    # flutter gen-l10n
    sdk: flutter
  intl: ^0.20.2
  google_mobile_ads: ^8.0.0
  just_audio: ^0.10.4
  wakelock_plus: ^1.4.0
  in_app_review: ^2.0.11
  app_settings: ^7.0.0

dev_dependencies:
  flutter_lints: ^6.0.0
  flutter_launcher_icons: ^0.14.4    #flutter pub run flutter_launcher_icons
  flutter_native_splash: ^2.3.6     #flutter pub run flutter_native_splash:create

flutter_launcher_icons:
  android: "launcher_icon"
  ios: true
  image_path: "assets/icon/icon.png"
  adaptive_icon_background: "assets/icon/icon_back.png"
  adaptive_icon_foreground: "assets/icon/icon_fore.png"

flutter_native_splash:
  color: '#3dbdd0'
  image: 'assets/image/splash.png'
  color_dark: '#3dbdd0'
  image_dark: 'assets/image/splash.png'
  fullscreen: true
  android_12:
    icon_background_color: '#3dbdd0'
    image: 'assets/image/splash.png'
    icon_background_color_dark: '#3dbdd0'
    image_dark: 'assets/image/splash.png'

flutter:
  generate: true
  uses-material-design: true
  config:
    enable-swift-package-manager: true

  assets:
    - assets/image/
    - assets/sound/


/// Copyright© ao-system, Inc.

import 'package:flutter/cupertino.dart';
import 'package:google_mobile_ads/google_mobile_ads.dart';

import 'package:wattconversion/ad_manager.dart';

class AdBannerWidget extends StatefulWidget {
  final AdManager adManager;
  const AdBannerWidget({super.key, required this.adManager});
  @override
  State<AdBannerWidget> createState() => _AdBannerWidgetState();
}

class _AdBannerWidgetState extends State<AdBannerWidget> {
  int _lastBannerWidthDp = 0;
  bool _isAdLoaded = false;
  bool _isLoading = false;
  @override
  Widget build(BuildContext context) {
    return SafeArea(
      child: LayoutBuilder(
        builder: (context, constraints) {
          final int width = constraints.maxWidth.isFinite ? constraints.maxWidth.truncate() : MediaQuery.of(context).size.width.truncate();
          final bannerAd = widget.adManager.bannerAd;
          if (width > 0) {
            WidgetsBinding.instance.addPostFrameCallback((_) {
              if (mounted) {
                final bannerAd = widget.adManager.bannerAd;
                final bool widthChanged = _lastBannerWidthDp != width;
                final bool sizeMismatch = bannerAd == null || bannerAd.size.width != width;
                if ((widthChanged || !_isAdLoaded || sizeMismatch) && !_isLoading) {
                  _lastBannerWidthDp = width;
                  setState(() { _isAdLoaded = false; _isLoading = true; });
                  widget.adManager.loadAdaptiveBannerAd(width, () {
                    if (mounted) {
                      setState(() { _isAdLoaded = true; _isLoading = false; });
                    }
                  });
                }
              }
            });
          }
          if (_isAdLoaded && bannerAd != null) {
            return Column(
              mainAxisSize: MainAxisSize.min,
              children: [
                SizedBox(height: 10),
                Row(
                  mainAxisAlignment: MainAxisAlignment.center,
                  children: [
                    SizedBox(
                      width: bannerAd.size.width.toDouble(),
                      height: bannerAd.size.height.toDouble(),
                      child: AdWidget(ad: bannerAd),
                    ),
                  ],
                )
              ]
            );
          } else {
            return const SizedBox.shrink();
          }
        },
      ),
    );
  }
}

/// Copyright© ao-system, Inc.

import 'dart:async';
import 'dart:io' show Platform;
import 'dart:ui';
import 'package:flutter/foundation.dart' show kIsWeb;
import 'package:google_mobile_ads/google_mobile_ads.dart';
import 'package:flutter/widgets.dart';

import 'package:wattconversion/_secrets.dart';

class AdManager {
  static String get _adUnitId => Platform.isIOS ? Secrets.adUnitIdIos : Secrets.adUnitIdAndroid;
  BannerAd? _bannerAd;
  int _lastWidthPx = 0;
  VoidCallback? _onLoadedCb;
  Timer? _retryTimer;
  int _retryAttempt = 0;

  BannerAd? get bannerAd => _bannerAd;

  /// アプリ起動時の設定
  /// UMP(同意管理)を導入したため、手動のNPA設定は不要になった。
  static Future<void> initForNPA() async {
    if (kIsWeb) {
      return;
    }
    // UMP SDK が保存した同意情報を MobileAds SDK が自動で読み取るため、
    // ここで RequestConfiguration を使って NPA を強制する必要はない。
    await MobileAds.instance.updateRequestConfiguration(
      RequestConfiguration(
        tagForChildDirectedTreatment: TagForChildDirectedTreatment.unspecified,
        testDeviceIds: Secrets.umpConsentTestDeviceIds, //テストデバイスID:広告の誤クリック防止
      ),
    );
  }

  Future<void> loadAdaptiveBannerAd(int widthPx, VoidCallback onAdLoaded) async {
    if (kIsWeb) {
      return;
    }
    _onLoadedCb = onAdLoaded;
    _lastWidthPx = widthPx;
    _retryAttempt = 0;
    _retryTimer?.cancel();
    _retryTimer = null;
    _startLoad(widthPx);
  }

  static AdRequest getAdRequest() {
    // ユーザーの同意状態(TCF信号)は、SDKによって自動的に付与される。
    // 手動で npa: 1 を送ると、UMPでのユーザーの選択と競合する可能性があるため、空で返す。
    // AdRequest(nonPersonalizedAds: true);にはしない
    return const AdRequest();
  }

  Future<void> _startLoad(int widthPx) async {
    if (kIsWeb) {
      return;
    }
    _bannerAd?.dispose();
    AnchoredAdaptiveBannerAdSize? adaptiveSize;
    try {
      adaptiveSize = await AdSize.getCurrentOrientationAnchoredAdaptiveBannerAdSize(widthPx);
    } catch (_) {
      adaptiveSize = null;
    }
    final AdSize size = adaptiveSize ?? AdSize.fullBanner;
    _bannerAd = BannerAd(
      adUnitId: _adUnitId,
      request: getAdRequest(),
      size: size,
      listener: BannerAdListener(
        onAdLoaded: (ad) {
          _retryTimer?.cancel();
          _retryTimer = null;
          _retryAttempt = 0;
          final cb = _onLoadedCb;
          if (cb != null) {
            cb();
          }
        },
        onAdFailedToLoad: (ad, err) {
          ad.dispose();
          _scheduleRetry();
        },
      ),
    )..load();
  }

  void _scheduleRetry() {
    if (kIsWeb) return;
    _retryTimer?.cancel();
    _retryTimer = null;
    _retryAttempt = (_retryAttempt + 1).clamp(1, 5);
    final seconds = _retryAttempt >= 4 ? 30 : (3 << (_retryAttempt - 1));
    _retryTimer = Timer(Duration(seconds: seconds), () {
      _startLoad(_lastWidthPx > 0 ? _lastWidthPx : 320);
    });
  }

  void dispose() {
    _bannerAd?.dispose();
    _retryTimer?.cancel();
    _retryTimer = null;
  }
}

/// Copyright© ao-system, Inc.

import 'dart:async';
import 'package:flutter/foundation.dart' show kIsWeb;
import 'package:google_mobile_ads/google_mobile_ads.dart';
import 'package:flutter/widgets.dart';

import 'package:wattconversion/l10n/app_localizations.dart';
import 'package:wattconversion/_secrets.dart';

/// UMP状態格納用
class AdUmpState {
  final PrivacyOptionsRequirementStatus privacyStatus;
  final ConsentStatus consentStatus;
  final bool privacyOptionsRequired;
  final bool isChecking;
  const AdUmpState({
    required this.privacyStatus,
    required this.consentStatus,
    required this.privacyOptionsRequired,
    required this.isChecking,
  });

  AdUmpState copyWith({
    PrivacyOptionsRequirementStatus? privacyStatus,
    ConsentStatus? consentStatus,
    bool? privacyOptionsRequired,
    bool? isChecking,
  }) {
    return AdUmpState(
      privacyStatus: privacyStatus ?? this.privacyStatus,
      consentStatus: consentStatus ?? this.consentStatus,
      privacyOptionsRequired:
      privacyOptionsRequired ?? this.privacyOptionsRequired,
      isChecking: isChecking ?? this.isChecking,
    );
  }

  static const initial = AdUmpState(
    privacyStatus: PrivacyOptionsRequirementStatus.unknown,
    consentStatus: ConsentStatus.unknown,
    privacyOptionsRequired: false,
    isChecking: false,
  );
}

//UMPコントローラ
class AdUmpConsentController {
  //デバッグ用：同意フォームの表示テスト：EEA地域を強制する(本番ではfalseにすること)
  final bool forceEeaForDebug = false;
  //デバッグ用：同意フォームの表示テスト：EEA地域を強制するテストデバイスID
  static final List<String> _testDeviceIds = Secrets.umpConsentTestDeviceIds;

  ConsentRequestParameters _buildParams() {
    if (forceEeaForDebug && _testDeviceIds.isNotEmpty) {
      return ConsentRequestParameters(
        consentDebugSettings: ConsentDebugSettings(
          debugGeography: DebugGeography.debugGeographyEea,
          testIdentifiers: _testDeviceIds,
        ),
      );
    }
    return ConsentRequestParameters();
  }

  //同意情報を更新して状態を返す
  Future<AdUmpState> updateConsentInfo({AdUmpState current = AdUmpState.initial}) async {
    if (kIsWeb) {
      return current;
    }
    var state = current.copyWith(isChecking: true);

    try {
      final params = _buildParams();
      final completer = Completer<AdUmpState>();

      ConsentInformation.instance.requestConsentInfoUpdate(
        params,
        () async {
          //同意フォームが必要なら表示する
          ConsentForm.loadAndShowConsentFormIfRequired((formError) async {
            final s = await ConsentInformation.instance.getPrivacyOptionsRequirementStatus();
            final c = await ConsentInformation.instance.getConsentStatus();
            completer.complete(
              state.copyWith(
                privacyStatus: s,
                consentStatus: c,
                privacyOptionsRequired: s == PrivacyOptionsRequirementStatus.required,
                isChecking: false,
              ),
            );
          });
        },
        (FormError e) {
          completer.complete(state.copyWith(isChecking: false));
        },
      );
      return await completer.future;
    } catch (_) {
      return state.copyWith(isChecking: false);
    }
  }

  //プライバシーオプションフォームを表示
  Future<FormError?> showPrivacyOptions() async {
    if (kIsWeb) return null;
    final completer = Completer<FormError?>();
    ConsentForm.showPrivacyOptionsForm((FormError? e) {
      completer.complete(e);
    });
    return completer.future;
  }
}

class AdUmpService {
  final AdUmpConsentController _adUmpConsentController = AdUmpConsentController();

  Future<AdUmpState> updateConsentInfo(AdUmpState current) async {
    return await _adUmpConsentController.updateConsentInfo(current: current);
  }

  Future<void> requestConsentInfoUpdate(ConsentRequestParameters params) async {
    final completer = Completer<void>();
    ConsentInformation.instance.requestConsentInfoUpdate(
      params,
          () => completer.complete(),
          (FormError error) => completer.completeError(error),
    );
    return completer.future;
  }

  Future<FormError?> showPrivacyOptions() async {
    return await _adUmpConsentController.showPrivacyOptions();
  }
}

extension ConsentStatusL10n on ConsentStatus {
  String localized(BuildContext context) {
    final l = AppLocalizations.of(context)!;
    switch (this) {
      case ConsentStatus.obtained:
        return l.cmpConsentStatusObtained;
      case ConsentStatus.required:
        return l.cmpConsentStatusRequired;
      case ConsentStatus.notRequired:
        return l.cmpConsentStatusNotRequired;
      case ConsentStatus.unknown:
        return l.cmpConsentStatusUnknown;
    }
  }
}

/// Copyright© ao-system, Inc.

import 'package:flutter/services.dart';

///App Tracking Transparency サービス
///iOS 14以降で広告トラッキングの許可をリクエストする
class AttService {
  //チャンネル名をiOS側と一致させる
  static const _channel = MethodChannel('aosystem.att');

  static final AttService _instance = AttService._internal();
  factory AttService() => _instance;
  AttService._internal();

  ///トラッキング許可をリクエスト
  ///戻り値: AttStatus (enum)
  Future<AttStatus> requestTracking() async {
    try {
      //iOS側からInt値を受け取る
      final result = await _channel.invokeMethod<int>('requestTracking');
      //enumに変換して返却
      return parseAttStatus(result);
    } on MissingPluginException catch (_) {
      //ハンドラ未登録(iOS以外/旧バイナリ等)はアプリ全体を落とさない
      return AttStatus.unknown;
    } on PlatformException catch (_) {
      return AttStatus.unknown;
    }
  }

  ///現在のトラッキング許可状態を取得
  ///戻り値:AttStatus(enum)
  Future<AttStatus> getTrackingStatus() async {
    try {
      //iOS側からInt値を受け取る
      final result = await _channel.invokeMethod<int>('getTrackingStatus');
      //enumに変換して返却
      return parseAttStatus(result);
    } on MissingPluginException catch (_) {
      return AttStatus.unknown;
    } on PlatformException catch (_) {
      return AttStatus.unknown;
    }
  }

  ///トラッキングが許可されているか
  Future<bool> isTrackingAuthorized() async {
    final status = await getTrackingStatus();
    return status == AttStatus.authorized;
  }
}

//一緒に利用する enum とヘルパー関数

enum AttStatus {
  notDetermined, // 0
  restricted,    // 1
  denied,        // 2
  authorized,    // 3
  unknown,       // 4
}

AttStatus parseAttStatus(int? value) {
  switch (value) {
    case 0:
      return AttStatus.notDetermined;
    case 1:
      return AttStatus.restricted;
    case 2:
      return AttStatus.denied;
    case 3:
      return AttStatus.authorized;
    default:
      return AttStatus.unknown;
  }
}

/// Copyright© ao-system, Inc.

import 'package:just_audio/just_audio.dart';

import 'package:wattconversion/const_value.dart';

class AudioPlay {
  //音を重ねて連続再生できるようにインスタンスを用意しておき、順繰りに使う。
  static final List<AudioPlayer> _player01 = [
    AudioPlayer(),
    AudioPlayer(),
    AudioPlayer(),
    AudioPlayer(),
    AudioPlayer(),
    AudioPlayer(),  //6個
  ];
  int _player01Ptr = 0;

  double _soundVolume = 0.0;

  //constructor
  AudioPlay() {
    constructor();
  }
  void constructor() async {
    for (int i = 0; i < _player01.length; i++) {
      await _player01[i].setVolume(0);
      await _player01[i].setAsset(ConstValue.audioHiyoko[i]);
    }
    playZero();
  }
  void dispose() {
    for (int i = 0; i < _player01.length; i++) {
      _player01[i].dispose();
    }
  }
  //getter
  double get soundVolume {
    return _soundVolume;
  }
  //setter
  set soundVolume(double vol) {
    _soundVolume = vol;
  }
  //最初に音が鳴らないのを回避する方法
  void playZero() async {
    AudioPlayer ap = AudioPlayer();
    await ap.setAsset(ConstValue.audioZero);
    await ap.load();
    await ap.play();
  }
  //
  void play01() async {
    if (_soundVolume == 0) {
      return;
    }
    _player01Ptr += 1;
    if (_player01Ptr >= _player01.length) {
      _player01Ptr = 0;
    }
    await _player01[_player01Ptr].setVolume(_soundVolume);
    await _player01[_player01Ptr].pause();
    await _player01[_player01Ptr].seek(Duration.zero);
    await _player01[_player01Ptr].play();
  }
}

/// Copyright© ao-system, Inc.

class ConstValue {
  static const List<String> imageBacks = [
    'assets/image/kitchen001.webp',
    'assets/image/kitchen002.webp',
    'assets/image/kitchen003.webp',
    'assets/image/kitchen004.webp',
    'assets/image/kitchen005.webp',
    'assets/image/kitchen006.webp',
    'assets/image/kitchen007.webp',
    'assets/image/kitchen008.webp',
    'assets/image/kitchen009.webp',
    'assets/image/kitchen010.webp',
    'assets/image/kitchen011.webp',
    'assets/image/kitchen012.webp',
    'assets/image/kitchen013.webp',
    'assets/image/kitchen014.webp',
    'assets/image/kitchen015.webp',
    'assets/image/kitchen016.webp',
    'assets/image/kitchen017.webp',
    'assets/image/kitchen018.webp',
    'assets/image/kitchen019.webp',
    'assets/image/kitchen020.webp',
    'assets/image/kitchen021.webp',
    'assets/image/kitchen022.webp',
    'assets/image/kitchen023.webp',
    'assets/image/kitchen024.webp',
    'assets/image/kitchen025.webp',
    'assets/image/kitchen026.webp',
    'assets/image/kitchen027.webp',
    'assets/image/kitchen028.webp',
    'assets/image/kitchen029.webp',
    'assets/image/kitchen030.webp',
    'assets/image/kitchen031.webp',
    'assets/image/kitchen032.webp',
    'assets/image/kitchen033.webp',
    'assets/image/kitchen034.webp',
    'assets/image/kitchen035.webp',
    'assets/image/kitchen036.webp',
    'assets/image/kitchen037.webp',
    'assets/image/kitchen038.webp',
    'assets/image/kitchen039.webp',
    'assets/image/kitchen040.webp',
    'assets/image/kitchen041.webp',
    'assets/image/kitchen042.webp',
    'assets/image/kitchen043.webp',
    'assets/image/kitchen044.webp',
    'assets/image/kitchen045.webp',
    'assets/image/kitchen046.webp',
    'assets/image/kitchen047.webp',
    'assets/image/kitchen048.webp',
    'assets/image/kitchen049.webp',
    'assets/image/kitchen050.webp',
    'assets/image/kitchen051.webp',
    'assets/image/kitchen052.webp',
    'assets/image/kitchen053.webp',
    'assets/image/kitchen054.webp',
    'assets/image/kitchen055.webp',
    'assets/image/kitchen056.webp',
    'assets/image/kitchen057.webp',
    'assets/image/kitchen058.webp',
    'assets/image/kitchen059.webp',
    'assets/image/kitchen060.webp',
    'assets/image/kitchen061.webp',
    'assets/image/kitchen062.webp',
    'assets/image/kitchen063.webp',
    'assets/image/kitchen064.webp',
    'assets/image/kitchen065.webp',
    'assets/image/kitchen066.webp',
    'assets/image/kitchen067.webp',
    'assets/image/kitchen068.webp',
    'assets/image/kitchen069.webp',
    'assets/image/kitchen070.webp',
    'assets/image/kitchen071.webp',
    'assets/image/kitchen072.webp',
    'assets/image/kitchen073.webp',
    'assets/image/kitchen074.webp',
    'assets/image/kitchen075.webp',
    'assets/image/kitchen076.webp',
    'assets/image/kitchen077.webp',
    'assets/image/kitchen078.webp',
    'assets/image/kitchen079.webp',
    'assets/image/kitchen080.webp',
    'assets/image/kitchen081.webp',
    'assets/image/kitchen082.webp',
    'assets/image/kitchen083.webp',
    'assets/image/kitchen084.webp',
    'assets/image/kitchen085.webp',
    'assets/image/kitchen086.webp',
    'assets/image/kitchen087.webp',
    'assets/image/kitchen088.webp',
    'assets/image/kitchen089.webp',
    'assets/image/kitchen090.webp',
    'assets/image/kitchen091.webp',
    'assets/image/kitchen092.webp',
    'assets/image/kitchen093.webp',
    'assets/image/kitchen094.webp',
    'assets/image/kitchen095.webp',
    'assets/image/kitchen096.webp',
    'assets/image/kitchen097.webp',
    'assets/image/kitchen098.webp',
    'assets/image/kitchen099.webp',
    'assets/image/kitchen100.webp',
  ];
  //sound
  static const String audioZero = 'assets/sound/zero.wav';    //無音1秒
  static const List<String> audioHiyoko = [
    'assets/sound/hiyoko1.wav',
    'assets/sound/hiyoko2.wav',
    'assets/sound/hiyoko3.wav',
    'assets/sound/hiyoko4.wav',
    'assets/sound/hiyoko5.wav',
    'assets/sound/hiyoko6.wav',
  ];

}

/// Copyright© ao-system, Inc.

import 'package:flutter/material.dart';
import 'package:wakelock_plus/wakelock_plus.dart';

import 'package:wattconversion/l10n/app_localizations.dart';
import 'package:wattconversion/const_value.dart';
import 'package:wattconversion/setting_page.dart';
import 'package:wattconversion/ad_banner_widget.dart';
import 'package:wattconversion/model.dart';
import 'package:wattconversion/audio_play.dart';
import 'package:wattconversion/loading_screen.dart';
import 'package:wattconversion/theme_color.dart';
import 'package:wattconversion/main.dart';

class MainHomePage extends StatefulWidget {
  const MainHomePage({super.key});
  @override
  State<MainHomePage> createState() => _MainHomePageState();
}

class _MainHomePageState extends State<MainHomePage> with SingleTickerProviderStateMixin, WidgetsBindingObserver {
  late ThemeColor _themeColor;
  final AudioPlay _audioPlay = AudioPlay();
  late AnimationController _animationController;
  late Animation<double> _opacityAnimation;
  bool _showBackImage = true;
  int _backImageNumber = 0;
  int _lastBackImageNumber = 0;
  int _wattFrom = 600;
  int _wattTo = 500;
  int _minute = 5;
  int _second = 0;
  bool _isReady = false;

  @override
  void initState() {
    super.initState();
    WidgetsBinding.instance.addObserver(this);
    _initState();
  }

  void _initState() async {
    _themeColor = ThemeColor(themeNumber: Model.themeNumber, context: context);
    _wakelock();
    _audioPlay.playZero();
    final int subSecond = (DateTime.now()).millisecondsSinceEpoch ~/ 100;
    _backImageNumber = subSecond % ConstValue.imageBacks.length;
    //background animation
    _animationController = AnimationController(
      vsync: this,
      duration: const Duration(milliseconds: 500),
    );
    _opacityAnimation = Tween<double>(begin: 0, end: 1).animate(_animationController);
    _animationController.addListener(() {
      setState(() {});
    });
    _backImageChange();
    //
    _showBackImage = Model.showBackImage;
    _audioPlay.soundVolume = Model.soundVolume;
    _wattFrom = Model.wattFrom;
    _wattTo = Model.wattTo;
    _minute = Model.minute;
    _second = Model.second;
    if (mounted) {
      setState(() {
        _isReady = true;
      });
    }
  }

  @override
  void dispose() {
    WidgetsBinding.instance.removeObserver(this);
    WakelockPlus.disable();
    super.dispose();
  }

  //need with WidgetsBindingObserver
  //WidgetsBinding.instance.addObserver(this);
  //WidgetsBinding.instance.removeObserver(this);
  @override
  void didChangeAppLifecycleState(AppLifecycleState state) {
    switch (state) {
      case AppLifecycleState.resumed:
        _wakelock();
        break;
      case AppLifecycleState.inactive:
      case AppLifecycleState.paused:
      case AppLifecycleState.detached:
      case AppLifecycleState.hidden:
        WakelockPlus.disable();
        break;
    }
  }

  void _wakelock() {
    if (Model.wakelockEnabled) {
      WakelockPlus.enable();
    } else {
      WakelockPlus.disable();
    }
  }

  Future<void> _openSetting() async {
    final updated = await Navigator.push<bool>(
      context,
      MaterialPageRoute(builder: (_) => const SettingPage()),
    );
    if (mounted && updated == true) {
      MainApp.of(context).rebuildApp();
      _themeColor = ThemeColor(themeNumber: Model.themeNumber, context: context);
      _wakelock();
      _showBackImage = Model.showBackImage;
      _audioPlay.soundVolume = Model.soundVolume;
    }
    if (mounted) {
      setState(() {});
    }
  }

  @override
  Widget build(BuildContext context) {
    if (!_isReady) {
      return Scaffold(
        body: LoadingScreen(),
      );
    }
    final AppLocalizations l = AppLocalizations.of(context)!;
    final TextTheme t = Theme.of(context).textTheme;
    return Container(
      decoration: BoxDecoration(
        color: _themeColor.mainBackColor,
      ),
      child: Container(
        decoration: _decoration2(),
        child: Container(
          decoration: _decoration1(),
          child: Scaffold(
            backgroundColor: Colors.transparent,
            appBar: AppBar(
              backgroundColor: _themeColor.mainHeaderColor,
              foregroundColor: _themeColor.mainForeColor,
              title: Text(l.title, style: t.bodySmall),
              actions: [
                IconButton(
                  icon: const Icon(Icons.settings),
                  onPressed: _openSetting,
                ),
                const SizedBox(width:10),
              ],
            ),
            body: SafeArea(
              child: GestureDetector(
                onTap: () {
                  _audioPlay.play01();
                  _backImageChange();
                },
                child: Column(children: [
                  Expanded(
                    child: SingleChildScrollView(
                      child: Padding(
                        padding: const EdgeInsets.only(top: 5, left: 5, right: 5, bottom: 100),
                        child: Column(children: [
                          _content(),
                        ])
                      )
                    )
                  ),
                ])
              )
            ),
            bottomNavigationBar: AdBannerWidget(adManager: MainApp.of(context).adManager),
          )
        )
      )
    );
  }
  //背景画像前側
  Decoration _decoration1() {
    if (_showBackImage) {
      return BoxDecoration(
        image: DecorationImage(
          image: AssetImage(ConstValue.imageBacks[_backImageNumber]),
          fit: BoxFit.cover,
          colorFilter: ColorFilter.mode(
            Colors.black.withValues(alpha: _opacityAnimation.value),
            BlendMode.dstATop,
          ),
        )
      );
    } else {
      return const BoxDecoration();
    }
  }
  //背景画像後ろ側
  Decoration _decoration2() {
    if (_showBackImage) {
      return BoxDecoration(
        image: DecorationImage(
          image: AssetImage(ConstValue.imageBacks[_lastBackImageNumber]),
          fit: BoxFit.cover,
        ),
      );
    } else {
      return const BoxDecoration();
    }
  }
  void _backImageChange() {
    final int subSecond = (DateTime.now()).millisecondsSinceEpoch ~/ 100;
    _backImageNumber = subSecond % ConstValue.imageBacks.length;
    _animationController.forward();
    Future.delayed(const Duration(milliseconds: 600), () {
      _lastBackImageNumber = _backImageNumber;
      _animationController.reverse();
    });
  }

  Widget _content() {
    return Column(children:[
      _widgetWattFrom(),
      _widgetMinute(),
      _widgetSecond(),
      _widgetWattTo(),
      _widgetResult(),
    ]);
  }

  Widget _widgetWattFrom() {
    final l = AppLocalizations.of(context)!;
    return SizedBox(
      width: double.infinity,
      child: Card(
        margin: const EdgeInsets.only(left: 4, top: 4, right: 4, bottom: 0),
        color: _themeColor.mainBackColorMono.withValues(alpha: 0.9),
        elevation: 0,
        shadowColor: Colors.transparent,
        surfaceTintColor: Colors.transparent,
        shape: const RoundedRectangleBorder(
          borderRadius: BorderRadius.only(
            topLeft: Radius.circular(12),
            topRight: Radius.circular(12),
            bottomLeft: Radius.circular(0),
            bottomRight: Radius.circular(0),
          ),
        ),
        child: Padding(
          padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children:[
              Padding(
                padding: const EdgeInsets.only(top: 5, left: 10, right: 0, bottom: 0),
                child: Row(children: [
                  Text(l.wattFrom, style: Theme.of(context).textTheme.titleSmall?.copyWith(color: _themeColor.mainFromColor)),
                  const Spacer(),
                ])
              ),
              Padding(
                padding: const EdgeInsets.only(top: 0, left: 10, right: 0, bottom: 0),
                child: Row(children: <Widget>[
                  Container(
                    color: _themeColor.mainBackColorMono,
                    child: SizedBox(
                      width: 80,
                      child: Text(_wattFrom.toString(),textAlign: TextAlign.center,
                        style: Theme.of(context).textTheme.titleLarge?.copyWith(color: _themeColor.mainFromColor)
                      ),
                    )
                  ),
                  Expanded(
                    child: Slider(
                      value: _wattFrom.toDouble(),
                      min: 300,
                      max: 1800,
                      divisions: 15,
                      label: _wattFrom.toString(),
                      activeColor: _themeColor.mainFromColor,
                      onChanged: (double value) {
                        setState(() {
                          _wattFrom = value.toInt();
                          Model.setWattFrom(_wattFrom);
                        });
                      },
                    )
                  )
                ])
              )
            ]
          ),
        ),
      )
    );
  }

  Widget _widgetMinute() {
    final l = AppLocalizations.of(context)!;
    return SizedBox(
      width: double.infinity,
      child: Card(
        margin: const EdgeInsets.only(left: 4, top: 3, right: 4, bottom: 0),
        color: _themeColor.mainBackColorMono.withValues(alpha: 0.9),
        elevation: 0,
        shadowColor: Colors.transparent,
        surfaceTintColor: Colors.transparent,
        shape: const RoundedRectangleBorder(
          borderRadius: BorderRadius.only(
            topLeft: Radius.circular(0),
            topRight: Radius.circular(0),
            bottomLeft: Radius.circular(0),
            bottomRight: Radius.circular(0),
          ),
        ),
        child: Padding(
          padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children:[
              Padding(
                padding: const EdgeInsets.only(top: 5, left: 10, right: 0, bottom: 0),
                child: Row(children: [
                  Text(l.fromMinute, style: Theme.of(context).textTheme.titleSmall?.copyWith(color: _themeColor.mainFromColor)),
                  const Spacer(),
                ])
              ),
              Padding(
                padding: const EdgeInsets.only(top: 0, left: 10, right: 0, bottom: 0),
                child: Row(children: <Widget>[
                  Container(
                    color: _themeColor.mainBackColorMono,
                    child: SizedBox(
                      width: 80,
                      child: Text(_minute.toString(),textAlign: TextAlign.center,
                        style: Theme.of(context).textTheme.titleLarge?.copyWith(color: _themeColor.mainFromColor)
                      ),
                    )
                  ),
                  Expanded(
                    child: Slider(
                      value: _minute.toDouble(),
                      min: 1,
                      max: 30,
                      divisions: 29,
                      label: _minute.toString(),
                      activeColor: _themeColor.mainFromColor,
                      onChanged: (double value) {
                        setState(() {
                          _minute = value.toInt();
                          Model.setMinute(_minute);
                        });
                      },
                    )
                  )
                ])
              )
            ]
          ),
        ),
      )
    );
  }

  Widget _widgetSecond() {
    final l = AppLocalizations.of(context)!;
    return SizedBox(
      width: double.infinity,
      child: Card(
        margin: const EdgeInsets.only(left: 4, top: 3, right: 4, bottom: 0),
        color: _themeColor.mainBackColorMono.withValues(alpha: 0.9),
        elevation: 0,
        shadowColor: Colors.transparent,
        surfaceTintColor: Colors.transparent,
        shape: const RoundedRectangleBorder(
          borderRadius: BorderRadius.only(
            topLeft: Radius.circular(0),
            topRight: Radius.circular(0),
            bottomLeft: Radius.circular(12),
            bottomRight: Radius.circular(12),
          ),
        ),
        child: Padding(
          padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children:[
              Padding(
                padding: const EdgeInsets.only(top: 5, left: 10, right: 0, bottom: 0),
                child: Row(children: [
                  Text(l.fromSecond, style: Theme.of(context).textTheme.titleSmall?.copyWith(color: _themeColor.mainFromColor)),
                  const Spacer(),
                ])
              ),
              Padding(
                padding: const EdgeInsets.only(top: 0, left: 10, right: 0, bottom: 0),
                child: Row(children: <Widget>[
                  Container(
                    color: _themeColor.mainBackColorMono,
                    child: SizedBox(
                      width: 80,
                      child: Text(_second.toString(),textAlign: TextAlign.center,
                        style: Theme.of(context).textTheme.titleLarge?.copyWith(color: _themeColor.mainFromColor)
                      ),
                    )
                  ),
                  Expanded(
                    child: Slider(
                      value: _second.toDouble(),
                      min: 0,
                      max: 50,
                      divisions: 5,
                      label: _second.toString(),
                      activeColor: _themeColor.mainFromColor,
                      onChanged: (double value) {
                        setState(() {
                          _second = value.toInt();
                          Model.setSecond(_second);
                        });
                      },
                    )
                  )
                ])
              )
            ]
          ),
        ),
      )
    );
  }

  Widget _widgetWattTo() {
    final l = AppLocalizations.of(context)!;
    return SizedBox(
      width: double.infinity,
      child: Card(
        margin: const EdgeInsets.only(left: 4, top: 12, right: 4, bottom: 0),
        color: _themeColor.mainBackColorMono.withValues(alpha: 0.9),
        elevation: 0,
        shadowColor: Colors.transparent,
        surfaceTintColor: Colors.transparent,
        child: Padding(
          padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children:[
              Padding(
                padding: const EdgeInsets.only(top: 5, left: 10, right: 0, bottom: 0),
                child: Row(children: [
                  Text(l.wattTo, style: Theme.of(context).textTheme.titleSmall?.copyWith(color: _themeColor.mainToColor)),
                  const Spacer(),
                ])
              ),
              Padding(
                padding: const EdgeInsets.only(top: 0, left: 10, right: 0, bottom: 0),
                child: Row(children: <Widget>[
                  Container(
                    color: _themeColor.mainBackColorMono,
                    child: SizedBox(
                      width: 80,
                      child: Text(_wattTo.toString(),textAlign: TextAlign.center,
                        style: Theme.of(context).textTheme.titleLarge?.copyWith(color: _themeColor.mainToColor)
                      ),
                    )
                  ),
                  Expanded(
                    child: Slider(
                      value: _wattTo.toDouble(),
                      min: 300,
                      max: 1800,
                      divisions: 15,
                      label: _wattTo.toString(),
                      activeColor: _themeColor.mainToColor,
                      onChanged: (double value) {
                        setState(() {
                          _wattTo = value.toInt();
                          Model.setWattTo(_wattTo);
                        });
                      },
                    )
                  )
                ])
              ),
            ]
          ),
        ),
      )
    );
  }

  Widget _widgetResult() {
    final l = AppLocalizations.of(context)!;
    final int sec = ((_minute * 60 + _second) / _wattTo * _wattFrom).toInt();
    final int answerMinute = (sec / 60).floor();
    final int answerSecond = sec % 60;
    return SizedBox(
      width: double.infinity,
      child: Card(
        margin: const EdgeInsets.only(left: 4, top: 12, right: 4, bottom: 0),
        color: _themeColor.mainBackColorMono.withValues(alpha: 0.9),
        elevation: 0,
        shadowColor: Colors.transparent,
        surfaceTintColor: Colors.transparent,
        child: Padding(
          padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 16),
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children:[
              Row(children: [
                const Spacer(),
                Text('${l.specified} ${_wattFrom}W',
                  style: Theme.of(context).textTheme.titleLarge?.copyWith(color: _themeColor.mainFromColor),
                ),
                const Spacer(),
              ]),
              Row(children: [
                const Spacer(),
                Text('${_minute} ${l.minute} ${_second} ${l.second}',
                  style: Theme.of(context).textTheme.titleLarge?.copyWith(color: _themeColor.mainFromColor),
                ),
                const Spacer(),
              ]),
              SizedBox(height: 5),
              Row(children: [
                const Spacer(),
                Text('${l.conversion} ${_wattTo}W',
                  style: Theme.of(context).textTheme.titleLarge?.copyWith(color: _themeColor.mainToColor),
                ),
                const Spacer(),
              ]),
              Row(children: [
                const Spacer(),
                Text('${answerMinute} ${l.minute} ${answerSecond} ${l.second}',
                  style: Theme.of(context).textTheme.titleLarge?.copyWith(color: _themeColor.mainToColor),
                ),
                const Spacer(),
              ])
            ]
          ),
        ),
      )
    );
  }

}

/// Copyright© ao-system, Inc.

import 'dart:math';
import 'package:flutter/material.dart';

class LoadingScreen extends StatefulWidget {
  const LoadingScreen({super.key});

  @override
  State<LoadingScreen> createState() => _LoadingScreenState();
}

class _LoadingScreenState extends State<LoadingScreen> with SingleTickerProviderStateMixin {
  late AnimationController _animationController;

  @override
  void initState() {
    super.initState();
    final randomStart = Random().nextDouble();
    _animationController = AnimationController(
      vsync: this,
      duration: const Duration(seconds: 6),
      value: randomStart,
    )..repeat();
  }

  @override
  void dispose() {
    _animationController.dispose();
    super.dispose();
  }

  Color _rainbowColor(double value) {
    final hue = _animationController.value * 360;
    return HSVColor.fromAHSV(1, hue, 1, value).toColor();
  }

  @override
  Widget build(BuildContext context) {
    final barHeight = MediaQuery.of(context).size.height * 0.4;
    return AnimatedBuilder(
      animation: _animationController,
      builder: (context, _) {
        final foreColor = _rainbowColor(1.0);
        final backColor = _rainbowColor(0.08);
        return Scaffold(
          backgroundColor: backColor,
          body: Center(
            child: Column(
              mainAxisSize: MainAxisSize.min,
              children: [
                SizedBox(
                  height: barHeight,
                  child: RotatedBox(
                    quarterTurns: -1,
                    child: LinearProgressIndicator(
                      minHeight: 1,
                      valueColor: AlwaysStoppedAnimation(foreColor),
                      backgroundColor: Colors.transparent,
                    ),
                  ),
                ),
                const SizedBox(height: 5),
                Text(
                  'LOADING',
                  style: TextStyle(
                    color: foreColor,
                    fontSize: 18,
                    letterSpacing: 16,
                  ),
                ),
                const SizedBox(height: 5),
                SizedBox(
                  height: barHeight,
                  child: RotatedBox(
                    quarterTurns: 1,
                    child: LinearProgressIndicator(
                      minHeight: 1,
                      valueColor: AlwaysStoppedAnimation(foreColor),
                      backgroundColor: Colors.transparent,
                    ),
                  ),
                ),
              ],
            ),
          ),
        );
      },
    );
  }
}

/// Copyright© ao-system, Inc.

import 'dart:async';
import 'dart:io';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:google_mobile_ads/google_mobile_ads.dart';

import 'package:wattconversion/model.dart';
import 'package:wattconversion/loading_screen.dart';
import 'package:wattconversion/parse_locale_tag.dart';
import 'package:wattconversion/theme_mode_number.dart';
import 'package:wattconversion/home_page.dart';
import 'package:wattconversion/l10n/app_localizations.dart';
import 'package:wattconversion/ad_ump_status.dart';
import 'package:wattconversion/att_service.dart';
import 'package:wattconversion/ad_manager.dart';

void main() async {
  WidgetsFlutterBinding.ensureInitialized();
  //UI設定
  SystemChrome.setEnabledSystemUIMode(SystemUiMode.edgeToEdge);
  SystemChrome.setSystemUIOverlayStyle(
    const SystemUiOverlayStyle(
      systemNavigationBarColor: Colors.transparent,
      statusBarColor: Colors.transparent,
      systemNavigationBarContrastEnforced: false,
      systemStatusBarContrastEnforced: false,
    ),
  );
  runApp(const MainApp());
}

class MainApp extends StatefulWidget {
  const MainApp({super.key});

  static MainAppState of(BuildContext context) {
    return context.findAncestorStateOfType<MainAppState>()!;
  }

  @override
  State<MainApp> createState() => MainAppState();
}

class MainAppState extends State<MainApp> {
  late final AdManager adManager;
  ThemeMode _themeMode = ThemeMode.system;
  Locale? _locale;
  bool _hasError = false;
  bool _isReady = false;

  @override
  void initState() {
    super.initState();
    _initState();
  }

  void _initState() async {
    try {
      //ad
      adManager = AdManager();
      //アプリの基本データ
      await Model.ensureReady();
      //ATT
      //iOSは「アプリがactive/resumed状態」でないとrequestTrackingがダイアログを出さず即座にnotDeterminedを返すため、ライフサイクルがresumedになるまで待つ。
      //(iOSは「設定→トラッキング」でトグルを変えるとアプリプロセスをkillして再起動するので、起動時にgetTrackingStatusを読めば常に最新の値が手に入る)
      if (!kIsWeb && Platform.isIOS) {
        if (await _waitForResumed()) {
          final attService = AttService();
          //未決定(初回起動)のときだけダイアログ表示。既に決定済みならスキップ。
          if (await attService.getTrackingStatus() == AttStatus.notDetermined) {
            await attService.requestTracking();
          }
        }
      }
      //UMP(ATTの後)
      final adUmpConsentController = AdUmpConsentController();
      await adUmpConsentController.updateConsentInfo();
      //Mobile Ads SDK(同意確定後)
      await MobileAds.instance.initialize();
      //自前の広告設定
      await AdManager.initForNPA();
      //UI更新
      if (mounted) {
        setState(() {
          _themeMode = ThemeModeNumber.numberToThemeMode(Model.themeNumber);
          _locale = parseLocaleTag(Model.languageCode);
          _isReady = true;
        });
      }
    } catch (e) {
      if (mounted) {
        setState(() {
          _hasError = true;
        });
      }
    }
  }

  @override
  void dispose() {
    adManager.dispose();
    super.dispose();
  }

  //アプリがactive/resumed状態になるまで待つ。すでにresumedならすぐにtrueを返す。タイムアウト時はfalse。
  Future<bool> _waitForResumed({
    Duration timeout = const Duration(seconds: 5),
  }) async {
    final binding = WidgetsBinding.instance;
    if (binding.lifecycleState == AppLifecycleState.resumed) {
      return true;
    }
    final completer = Completer<bool>();
    late final AppLifecycleListener listener;
    listener = AppLifecycleListener(
      onStateChange: (state) {
        if (state == AppLifecycleState.resumed && !completer.isCompleted) {
          completer.complete(true);
        }
      },
    );
    try {
      return await completer.future.timeout(timeout, onTimeout: () => false);
    } finally {
      listener.dispose();
    }
  }

  void rebuildApp() {
    setState(() {
      _themeMode = ThemeModeNumber.numberToThemeMode(Model.themeNumber);
      _locale = parseLocaleTag(Model.languageCode);
    });
  }

  ThemeData _createTheme(Brightness brightness, Color seed) {
    final colorScheme = ColorScheme.fromSeed(seedColor: seed, brightness: brightness);
    return ThemeData(
      useMaterial3: true,
      colorScheme: colorScheme,
      appBarTheme: const AppBarTheme(backgroundColor: Colors.transparent),
      elevatedButtonTheme: ElevatedButtonThemeData(
        style: ElevatedButton.styleFrom(
          shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8)),
        ),
      ),
      sliderTheme: SliderThemeData(
        showValueIndicator: ShowValueIndicator.onDrag,
        valueIndicatorTextStyle: TextStyle(
          color: brightness == Brightness.light ? Colors.white : Colors.black,
        ),
      ),
      outlinedButtonTheme: OutlinedButtonThemeData(
        style: OutlinedButton.styleFrom(
          side: BorderSide(color: colorScheme.primary),
          shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(8)),
        ),
      ),
    );
  }

  @override
  Widget build(BuildContext context) {
    if (_hasError) {
      return _buildErrorMessage();
    }
    Color seed = Colors.purple;
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      localizationsDelegates: AppLocalizations.localizationsDelegates,
      supportedLocales: AppLocalizations.supportedLocales,
      locale: _locale,
      themeMode: _themeMode,
      theme: _createTheme(Brightness.light, seed),
      darkTheme: _createTheme(Brightness.dark, seed),
      home: _isReady ? const MainHomePage() : const Scaffold(body: LoadingScreen()),
    );
  }

  Widget _buildErrorMessage() {
    return const MaterialApp(
      debugShowCheckedModeBanner: false,
      home: Scaffold(
        body: Center(
          child: Padding(
            padding: EdgeInsets.all(24.0),
            child: Text(
              'Initialization failed. Please restart the app.',
              textAlign: TextAlign.center,
            ),
          ),
        ),
      ),
    );
  }

}

/// Copyright© ao-system, Inc.

import 'dart:ui' as ui;
import 'package:shared_preferences/shared_preferences.dart';

import 'package:wattconversion/l10n/app_localizations.dart';

class Model {
  Model._();

  static const String _prefShowBackImage = 'showBackImage';
  static const String _prefSoundVolume = 'soundVolume';
  static const String _prefWattFrom = 'wattFrom';
  static const String _prefWattTo = 'wattTo';
  static const String _prefMinute = 'minute';
  static const String _prefSecond = 'second';
  static const String _prefWakelockEnabled = 'wakelockEnabled';
  static const String _prefThemeNumber = 'themeNumber';
  static const String _prefLanguageCode = 'languageCode';

  static bool _ready = false;
  static bool _showBackImage = true;
  static double _soundVolume = 0.3;
  static int _wattFrom = 1000;
  static int _wattTo = 600;
  static int _minute = 5;
  static int _second = 0;
  static bool _wakelockEnabled = false;
  static int _themeNumber = 0;
  static String _languageCode = '';

  static bool get showBackImage => _showBackImage;
  static double get soundVolume => _soundVolume;
  static int get wattFrom => _wattFrom;
  static int get wattTo => _wattTo;
  static int get minute => _minute;
  static int get second => _second;
  static bool get wakelockEnabled => _wakelockEnabled;
  static int get themeNumber => _themeNumber;
  static String get languageCode => _languageCode;

  static Future<void> ensureReady() async {
    if (_ready) {
      return;
    }
    final SharedPreferences prefs = await SharedPreferences.getInstance();
    //
    _showBackImage = prefs.getBool(_prefShowBackImage) ?? true;
    _soundVolume = (prefs.getDouble(_prefSoundVolume) ?? 1.0).clamp(0.0, 1.0);
    _wattFrom = (prefs.getInt(_prefWattFrom) ?? 1000).clamp(300, 1800);
    _wattTo = (prefs.getInt(_prefWattTo) ?? 600).clamp(300, 1800);
    _minute = (prefs.getInt(_prefMinute) ?? 5).clamp(1, 30);
    _second = (prefs.getInt(_prefSecond) ?? 0).clamp(0, 50);
    _wakelockEnabled = prefs.getBool(_prefWakelockEnabled) ?? false;
    _themeNumber = (prefs.getInt(_prefThemeNumber) ?? 0).clamp(0, 2);
    _languageCode = prefs.getString(_prefLanguageCode) ?? ui.PlatformDispatcher.instance.locale.languageCode;
    _languageCode = _resolveLanguageCode(_languageCode);
    _ready = true;
  }

  static String _resolveLanguageCode(String code) {
    final supported = AppLocalizations.supportedLocales;
    if (supported.any((l) => l.languageCode == code)) {
      return code;
    } else {
      return '';
    }
  }

  static Future<void> setShowBackImage(bool value) async {
    _showBackImage = value;
    final SharedPreferences prefs = await SharedPreferences.getInstance();
    await prefs.setBool(_prefShowBackImage, value);
  }

  static Future<void> setSoundVolume(double value) async {
    _soundVolume = value;
    final SharedPreferences prefs = await SharedPreferences.getInstance();
    await prefs.setDouble(_prefSoundVolume, value);
  }

  static Future<void> setWattFrom(int value) async {
    _wattFrom = value;
    final SharedPreferences prefs = await SharedPreferences.getInstance();
    await prefs.setInt(_prefWattFrom, value);
  }

  static Future<void> setWattTo(int value) async {
    _wattTo = value;
    final SharedPreferences prefs = await SharedPreferences.getInstance();
    await prefs.setInt(_prefWattTo, value);
  }

  static Future<void> setMinute(int value) async {
    _minute = value;
    final SharedPreferences prefs = await SharedPreferences.getInstance();
    await prefs.setInt(_prefMinute, value);
  }

  static Future<void> setSecond(int value) async {
    _second = value;
    final SharedPreferences prefs = await SharedPreferences.getInstance();
    await prefs.setInt(_prefSecond, value);
  }

  static Future<void> setWakelockEnabled(bool value) async {
    _wakelockEnabled = value;
    final SharedPreferences prefs = await SharedPreferences.getInstance();
    await prefs.setBool(_prefWakelockEnabled, value);
  }

  static Future<void> setThemeNumber(int value) async {
    _themeNumber = value;
    final SharedPreferences prefs = await SharedPreferences.getInstance();
    await prefs.setInt(_prefThemeNumber, value);
  }

  static Future<void> setLanguageCode(String value) async {
    _languageCode = value;
    final SharedPreferences prefs = await SharedPreferences.getInstance();
    await prefs.setString(_prefLanguageCode, value);
  }

}

/// Copyright© ao-system, Inc.

import 'dart:ui';

Locale? parseLocaleTag(String tag) {
  if (tag.isEmpty) {
    return null;
  }
  final parts = tag.split('-');
  final language = parts[0];
  String? script, country;
  if (parts.length >= 2) {
    parts[1].length == 4 ? script = parts[1] : country = parts[1];
  }
  if (parts.length >= 3) {
    parts[2].length == 4 ? script = parts[2] : country = parts[2];
  }
  return Locale.fromSubtags(
    languageCode: language,
    scriptCode: script,
    countryCode: country,
  );
}

/// Copyright© ao-system, Inc.

import 'package:flutter/material.dart';

import 'package:wattconversion/theme_color.dart';
import 'package:wattconversion/model.dart';

/// 設定画面専用のカスタムCardウィジェット
class SettingCard extends StatelessWidget {
  final Widget child;
  final ShapeBorder shape;
  final EdgeInsetsGeometry margin;

  const SettingCard({
    super.key,
    required this.child,
    this.margin = const EdgeInsets.only(left: 0, top: 12, right: 0, bottom: 0),
  }) : shape = const RoundedRectangleBorder(
    borderRadius: BorderRadius.all(Radius.circular(12)),
  );

  const SettingCard.top({
    super.key,
    required this.child,
    this.margin = const EdgeInsets.only(left: 0, top: 12, right: 0, bottom: 0),
  }) : shape = const RoundedRectangleBorder(
    borderRadius: BorderRadius.only(
      topLeft: Radius.circular(12),
      topRight: Radius.circular(12),
      bottomLeft: Radius.circular(0),
      bottomRight: Radius.circular(0),
    ),
  );

  const SettingCard.flat({
    super.key,
    required this.child,
    this.margin = const EdgeInsets.only(left: 0, top: 2, right: 0, bottom: 0),
  }) : shape = const RoundedRectangleBorder(
    borderRadius: BorderRadius.only(
      topLeft: Radius.circular(0),
      topRight: Radius.circular(0),
      bottomLeft: Radius.circular(0),
      bottomRight: Radius.circular(0),
    ),
  );

  const SettingCard.bottom({
    super.key,
    required this.child,
    this.margin = const EdgeInsets.only(left: 0, top: 2, right: 0, bottom: 0),
  }) : shape = const RoundedRectangleBorder(
    borderRadius: BorderRadius.only(
      topLeft: Radius.circular(0),
      topRight: Radius.circular(0),
      bottomLeft: Radius.circular(12),
      bottomRight: Radius.circular(12),
    ),
  );

  @override
  Widget build(BuildContext context) {
    final themeColor = ThemeColor(
      themeNumber: Model.themeNumber,
      context: context,
    );
    return SizedBox(
      width: double.infinity,
      child: Card(
        elevation: 0,
        margin: margin,
        surfaceTintColor: Colors.transparent,
        shadowColor: Colors.transparent,
        color: themeColor.cardColor,
        shape: shape,
        child: child,
      ),
    );
  }
}
/// Copyright© ao-system, Inc.

import 'dart:io';
import 'package:app_settings/app_settings.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:google_mobile_ads/google_mobile_ads.dart';
import 'package:in_app_review/in_app_review.dart';

import "package:wattconversion/setting_card.dart";
import 'package:wattconversion/l10n/app_localizations.dart';
import 'package:wattconversion/model.dart';
import 'package:wattconversion/ad_banner_widget.dart';
import 'package:wattconversion/loading_screen.dart';
import 'package:wattconversion/theme_color.dart';
import 'package:wattconversion/ad_ump_status.dart';
import 'package:wattconversion/main.dart';
import 'package:wattconversion/_secrets.dart';
import 'package:wattconversion/att_service.dart';

class SettingPage extends StatefulWidget {
  const SettingPage({super.key});
  @override
  State<SettingPage> createState() => _SettingPageState();
}

class _SettingPageState extends State<SettingPage> {
  AdUmpState _adUmpState = AdUmpState.initial;
  late final AdUmpService _adUmpService;
  late ThemeColor _themeColor;
  final _inAppReview = InAppReview.instance;
  bool _wakelockEnabled = true;
  int _themeNumber = 0;
  String _languageCode = '';
  bool _isReady = false;
  //
  bool _showBackImage = true;
  double _soundVolume = 0.0;

  @override
  void initState() {
    super.initState();
    _initState();
  }

  void _initState() async {
    //ump
    _adUmpService = AdUmpService();
    await _refreshConsentInfo();
    //model
    _showBackImage = Model.showBackImage;
    _soundVolume = Model.soundVolume;
    _wakelockEnabled = Model.wakelockEnabled;
    _themeNumber = Model.themeNumber;
    _languageCode = Model.languageCode;
    setState(() {
      _isReady = true;
    });
  }

  @override
  void didChangeDependencies() {
    super.didChangeDependencies();
    _themeColor = ThemeColor(themeNumber: Model.themeNumber, context: context);
  }

  Future<void> _refreshConsentInfo() async {
    final AdUmpState newState = await _adUmpService.updateConsentInfo(_adUmpState);
    if (mounted) {
      setState(() { _adUmpState = newState; });
    }
  }

  Future<void> _onApply() async {
    await Model.setShowBackImage(_showBackImage);
    await Model.setSoundVolume(_soundVolume);
    await Model.setWakelockEnabled(_wakelockEnabled);
    await Model.setThemeNumber(_themeNumber);
    await Model.setLanguageCode(_languageCode);
    if (!mounted) {
      return;
    }
    Navigator.of(context).pop(true);
  }

  @override
  Widget build(BuildContext context) {
    if (_isReady == false) {
      return LoadingScreen();
    }
    final AppLocalizations l = AppLocalizations.of(context)!;
    final TextTheme t = Theme.of(context).textTheme;
    return Scaffold(
      backgroundColor: _themeColor.backColor,
      appBar: AppBar(
        backgroundColor: Colors.transparent,
        elevation: 0,
        leading: IconButton(
          icon: const Icon(Icons.close),
          onPressed: () => Navigator.of(context).pop(false),
        ),
        title: Text(l.setting),
        centerTitle: true,
        actions: [
          Padding(
            padding: const EdgeInsets.only(right: 10),
            child:IconButton(
              icon: const Icon(Icons.check),
              onPressed: _onApply,
            )
          ),
        ],
      ),
      body: SafeArea(
        child: Column(children:[
          Expanded(
            child: GestureDetector(
              onTap: () => FocusScope.of(context).unfocus(),  //背景タップでキーボードを仕舞う
              child: SingleChildScrollView(
                child: Padding(
                  padding: const EdgeInsets.only(left: 12, top: 4, right: 12, bottom: 100),
                  child: Column(children: [
                    _buildBackgroundImage(l, t),
                    _buildVolume(l, t),
                    _buildWakelockEnabled(l, t),
                    _buildTheme(l, t),
                    _buildLanguage(l, t),
                    _buildReview(l, t),
                    _buildCmp(l, t),
                    _buildAtt(l, t),
                    _buildUsage(l, t),
                  ]),
                ),
              ),
            ),
          ),
        ])
      ),
      bottomNavigationBar: AdBannerWidget(adManager: MainApp.of(context).adManager),
    );
  }

  Widget _buildBackgroundImage(AppLocalizations l, TextTheme t) {
    return SettingCard(
      child: ListTile(
        contentPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
        title: Text(l.showBackImage, style: t.bodyMedium),
        trailing: Switch(
          value: _showBackImage,
          onChanged: (value) {
            setState(() {
              _showBackImage = value;
            });
          },
        ),
      ),
    );
  }

  Widget _buildVolume(AppLocalizations l, TextTheme t) {
    return SettingCard(
      child: ListTile(
        contentPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
        title: Text(l.soundVolume, style: t.bodyMedium),
        subtitle: Row(
          children: [
            Text(_soundVolume.toStringAsFixed(1)),
            Expanded(
              child: Slider(
                value: _soundVolume,
                min: 0.0,
                max: 1.0,
                divisions: 10,
                label: _soundVolume.toStringAsFixed(1),
                onChanged: (value) {
                  setState(() {
                    _soundVolume = value;
                  });
                },
              ),
            ),
          ],
        ),
      ),
    );
  }

  Widget _buildWakelockEnabled(AppLocalizations l, TextTheme t) {
    return SettingCard(
      child: ListTile(
        contentPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
        title: Text(l.wakelockEnabled, style: t.bodyMedium),
        trailing: Switch(
          value: _wakelockEnabled,
          onChanged: (value) {
            setState(() {
              _wakelockEnabled = value;
            });
          },
        ),
      ),
    );
  }

  Widget _buildTheme(AppLocalizations l, TextTheme t) {
    return SettingCard(
      child: ListTile(
        contentPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
        minVerticalPadding: 0,
        title: Text(l.theme, style: t.bodyMedium),
        trailing: DropdownButton<int>(
          value: _themeNumber,
          items: [
            DropdownMenuItem(value: 0, child: Text(l.systemSetting)),
            DropdownMenuItem(value: 1, child: Text(l.lightTheme)),
            DropdownMenuItem(value: 2, child: Text(l.darkTheme)),
          ],
          onChanged: (value) {
            if (value != null) {
              setState(() {
                _themeNumber = value;
              });
            }
          },
        ),
      ),
    );
  }

  Widget _buildLanguage(AppLocalizations l, TextTheme t) {
    final Map<String,String> languageNames = {
      'af': 'af: Afrikaans',
      'ar': 'ar: العربية',
      'bg': 'bg: Български',
      'bn': 'bn: বাংলা',
      'bs': 'bs: Bosanski',
      'ca': 'ca: Català',
      'cs': 'cs: Čeština',
      'da': 'da: Dansk',
      'de': 'de: Deutsch',
      'el': 'el: Ελληνικά',
      'en': 'en: English',
      'es': 'es: Español',
      'et': 'et: Eesti',
      'fa': 'fa: فارسی',
      'fi': 'fi: Suomi',
      'fil': 'fil: Filipino',
      'fr': 'fr: Français',
      'gu': 'gu: ગુજરાતી',
      'he': 'he: עברית',
      'hi': 'hi: हिन्दी',
      'hr': 'hr: Hrvatski',
      'hu': 'hu: Magyar',
      'id': 'id: Bahasa Indonesia',
      'it': 'it: Italiano',
      'ja': 'ja: 日本語',
      //'jv': 'jv: Basa Jawa',    //flutterのサポート外
      'km': 'km: ខ្មែរ',
      'kn': 'kn: ಕನ್ನಡ',
      'ko': 'ko: 한국어',
      'lt': 'lt: Lietuvių',
      'lv': 'lv: Latviešu',
      'ml': 'ml: മലയാളം',
      'mr': 'mr: मराठी',
      'ms': 'ms: Bahasa Melayu',
      'my': 'my: မြန်မာ',
      'ne': 'ne: नेपाली',
      'nl': 'nl: Nederlands',
      'or': 'or: ଓଡ଼ିଆ',
      'pa': 'pa: ਪੰਜਾਬੀ',
      'pl': 'pl: Polski',
      'pt': 'pt: Português',
      'ro': 'ro: Română',
      'ru': 'ru: Русский',
      'si': 'si: සිංහල',
      'sk': 'sk: Slovenčina',
      'sr': 'sr: Српски',
      'sv': 'sv: Svenska',
      'sw': 'sw: Kiswahili',
      'ta': 'ta: தமிழ்',
      'te': 'te: తెలుగు',
      'th': 'th: ไทย',
      'tl': 'tl: Tagalog',
      'tr': 'tr: Türkçe',
      'uk': 'uk: Українська',
      'ur': 'ur: اردو',
      'uz': 'uz: Oʻzbekcha',
      'vi': 'vi: Tiếng Việt',
      'zh': 'zh: 中文',
      'zu': 'zu: isiZulu',
    };
    return SettingCard(
      child: ListTile(
        contentPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
        minVerticalPadding: 0,
        title: Text(l.language, style: t.bodyMedium),
        trailing: DropdownButton<String?>(
          value: _languageCode,
          items: [
            DropdownMenuItem(value: '', child: Text('Default')),
            ...languageNames.entries.map((entry) => DropdownMenuItem<String?>(
              value: entry.key,
              child: Text(entry.value),
            )),
          ],
          onChanged: (String? value) {
            setState(() {
              _languageCode = value ?? '';
            });
          },
        ),
      ),
    );
  }

  Widget _buildReview(AppLocalizations l, TextTheme t) {
    return SettingCard(
      child: ListTile(
        contentPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
        title: Text(l.reviewApp, style: t.bodyMedium),
        subtitle: Column(
          crossAxisAlignment: CrossAxisAlignment.center,
          children: [
            const SizedBox(height: 8),
            OutlinedButton.icon(
              icon: const Icon(Icons.open_in_new, size: 16),
              label: Text(l.reviewStore, style: t.bodySmall),
              onPressed: () async {
                await _inAppReview.openStoreListing(
                  appStoreId: Secrets.appStoreId,
                );
              },
            ),
          ],
        ),
      ),
    );
  }

  Widget _buildCmp(AppLocalizations l, TextTheme t) {
    final showButton = _adUmpState.privacyStatus == PrivacyOptionsRequirementStatus.required;
    String statusLabel = l.cmpCheckingRegion;
    IconData statusIcon = Icons.help_outline;
    switch (_adUmpState.privacyStatus) {
      case PrivacyOptionsRequirementStatus.required:
        statusLabel = l.cmpRegionRequiresSettings;
        statusIcon = Icons.privacy_tip_outlined;
        break;
      case PrivacyOptionsRequirementStatus.notRequired:
        statusLabel = l.cmpRegionNoSettingsRequired;
        statusIcon = Icons.check_circle_outline;
        break;
      case PrivacyOptionsRequirementStatus.unknown:
        statusLabel = l.cmpRegionCheckFailed;
        statusIcon = Icons.error_outline;
        break;
    }
    return SettingCard(
      child: ListTile(
        contentPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
        title: Text(l.cmpSettingsTitle, style: t.bodyMedium),
        subtitle: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            const SizedBox(height: 8),
            Text(l.cmpConsentDescription, style: t.bodySmall),
            const SizedBox(height: 16),
            Center(
              child: Column(
                children: [
                  Chip(
                    avatar: Icon(statusIcon, size: 18),
                    label: Text(statusLabel),
                  ),
                  const SizedBox(height: 6),
                  Text(
                    '${l.cmpConsentStatusLabel} ${_adUmpState.consentStatus.localized(context)}',
                    style: t.bodySmall,
                  ),
                  if (_adUmpState.consentStatus == ConsentStatus.obtained) ...[
                    const SizedBox(height: 6),
                    Text(l.cmpConsentStatusObtainedNote, style: t.bodySmall),
                  ],
                  if (showButton) ...[
                    const SizedBox(height: 8),
                    ElevatedButton.icon(
                      onPressed: _adUmpState.isChecking
                          ? null
                          : () async {
                        try {
                          await _adUmpService.showPrivacyOptions();
                        } catch (e) {
                          //debugPrint('Privacy options error ignored: $e');
                        }
                        await _refreshConsentInfo();
                      },
                      icon: const Icon(Icons.settings),
                      label: Text(
                        _adUmpState.isChecking
                            ? l.cmpConsentStatusChecking
                            : l.cmpOpenConsentSettings,
                      ),
                    ),
                    const SizedBox(height: 8),
                    OutlinedButton.icon(
                      onPressed: _adUmpState.isChecking ? null : _refreshConsentInfo,
                      icon: const Icon(Icons.refresh),
                      label: Text(l.cmpRefreshStatus),
                    ),
                    const SizedBox(height: 8),
                    OutlinedButton.icon(
                      onPressed: () async {
                        final messenger = ScaffoldMessenger.of(context);
                        final message = l.cmpResetStatusDone;
                        await ConsentInformation.instance.reset();
                        if (!mounted) {
                          return;
                        }
                        setState(() {
                          _adUmpState = _adUmpState.copyWith(
                            consentStatus: ConsentStatus.unknown,
                          );
                        });
                        messenger.showSnackBar(SnackBar(content: Text(message)));
                      },
                      icon: const Icon(Icons.delete_sweep_outlined),
                      label: Text(l.cmpResetStatus),
                    ),
                  ],
                ],
              ),
            ),
          ],
        ),
      ),
    );
  }

  Widget _buildAtt(AppLocalizations l, TextTheme t) {
    if (kIsWeb || !Platform.isIOS) {
      return const SizedBox.shrink();
    }
    return SettingCard(
      child: ListTile(
        contentPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
        title: Text(l.attSettingsTitle, style: t.bodyMedium),
        subtitle: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            const SizedBox(height: 8),
            Text(l.attDescription, style: t.bodySmall),
            const SizedBox(height: 8),
            FutureBuilder<AttStatus>(
              future: AttService().getTrackingStatus(),
              builder: (context, snapshot) {
                if (snapshot.connectionState == ConnectionState.waiting) {
                  return Center(
                    child: Column(
                      children: [
                        Chip(
                          avatar: const Icon(Icons.hourglass_empty),
                          label: Text(l.attStatusChecking),
                        ),
                        const SizedBox(height: 8),
                        OutlinedButton.icon(
                          onPressed: null,
                          icon: const Icon(Icons.open_in_new),
                          label: Text(l.attOpenSettings),
                        ),
                      ],
                    ),
                  );
                }
                final status = snapshot.data ?? AttStatus.unknown;
                final label = status.name;
                return Center(
                  child: Column(
                    children: [
                      Chip(
                        avatar: const Icon(Icons.track_changes),
                        label: Text('${l.attStatusLabel} $label'),
                      ),
                      const SizedBox(height: 8),
                      OutlinedButton.icon(
                        onPressed: () => AppSettings.openAppSettings(),
                        icon: const Icon(Icons.open_in_new, size: 16),
                        label: Text(l.attOpenSettings, style: t.bodySmall),
                      ),
                    ],
                  ),
                );
              },
            ),
          ],
        ),
      ),
    );
  }

  Widget _buildUsage(AppLocalizations l, TextTheme t) {
    return SettingCard(
      child: ListTile(
        contentPadding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
        title: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            Text(l.usage1, style: t.bodySmall),
            const SizedBox(height: 8),
            Text(l.usage2, style: t.bodySmall),
            const SizedBox(height: 8),
            Text(l.usage3, style: t.bodySmall),
            const SizedBox(height: 8),
            Text(l.usage4, style: t.bodySmall),
          ],
        ),
      ),
    );
  }

}


/// Copyright© ao-system, Inc.

import 'package:flutter/material.dart';

class ThemeColor {
  final int? themeNumber;
  final BuildContext context;

  ThemeColor({this.themeNumber, required this.context});

  Brightness get _effectiveBrightness {
    switch (themeNumber) {
      case 1:
        return Brightness.light;
      case 2:
        return Brightness.dark;
      default:
        return Theme.of(context).brightness;
    }
  }

  bool get _isLight => _effectiveBrightness == Brightness.light;

  //main page
  Color get mainBackColor => _isLight ? Color.fromRGBO(221, 221, 221, 1.0) : Color.fromRGBO(51, 51, 51, 1.0);
  Color get mainForeColor => _isLight ? Color.fromRGBO(0,0,0,0.7) : Color.fromRGBO(255, 255, 255, 1);
  Color get mainHeaderColor => _isLight ? Color.fromRGBO(255,255,255,0.4) : Color.fromRGBO(0,0,0,0.4);
  Color get mainBackColorMono => _isLight ? Colors.white : Colors.black;
  Color get mainForeColorMono => _isLight ? Colors.black : Colors.white;
  Color get mainFromColor => _isLight ? Color.fromRGBO(0, 61, 191, 1.0) : Color.fromRGBO(180, 180, 255, 1.0);
  Color get mainToColor => _isLight ? Color.fromRGBO(211, 0, 126, 1.0) : Color.fromRGBO(253, 137, 174, 1.0);
  Color get backColor => _isLight ? Colors.grey[200]! : Colors.grey[900]!;
  Color get cardColor => _isLight ? Colors.white : Colors.grey[800]!;
  Color get appBarForegroundColor => _isLight ? Colors.grey[700]! : Colors.white70;
  Color get dropdownColor => cardColor;
  Color get borderColor => _isLight ? Colors.grey[300]! : Colors.grey[700]!;
  Color get inputFillColor => _isLight ? Colors.grey[50]! : Colors.grey[900]!;
}

/// Copyright© ao-system, Inc.

import 'package:flutter/material.dart';

class ThemeModeNumber {
  static ThemeMode numberToThemeMode(int value) {
    switch (value) {
      case 1:
        return ThemeMode.light;
      case 2:
        return ThemeMode.dark;
      default:
        return ThemeMode.system;
    }
  }
}