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

import 'package:flutter/cupertino.dart';

class MyCupertinoLocalizations implements CupertinoLocalizations {
  final CupertinoLocalizations _base;
  MyCupertinoLocalizations(this._base);

  // ✅ 只改这里：月份改阿拉伯数字
  @override
  String datePickerMonth(int monthIndex) => '$monthIndex月';

  // ✅ 关键：日期顺序等必须继续用 zh_CN 的实现
  @override
  DatePickerDateOrder get datePickerDateOrder => _base.datePickerDateOrder;

  @override
  DatePickerDateTimeOrder get datePickerDateTimeOrder => _base.datePickerDateTimeOrder;

  // ——下面全部转发给 _base（只列一部分示例，其余用 IDE 一键生成）——
  @override
  String get todayLabel => _base.todayLabel;

  @override
  String get alertDialogLabel => _base.alertDialogLabel;

  @override
  String get anteMeridiemAbbreviation => _base.anteMeridiemAbbreviation;

  @override
  String get postMeridiemAbbreviation => _base.postMeridiemAbbreviation;

  @override
  String get copyButtonLabel => _base.copyButtonLabel;

  @override
  String get cutButtonLabel => _base.cutButtonLabel;

  @override
  String get pasteButtonLabel => _base.pasteButtonLabel;

  @override
  String get selectAllButtonLabel => _base.selectAllButtonLabel;

  @override
  String get modalBarrierDismissLabel => _base.modalBarrierDismissLabel;

  @override
  String tabSemanticsLabel({required int tabIndex, required int tabCount}) =>
      _base.tabSemanticsLabel(tabIndex: tabIndex, tabCount: tabCount);

  @override
  String datePickerDayOfMonth(int dayIndex, [int? weekDay]) =>
      _base.datePickerDayOfMonth(dayIndex, weekDay);

  @override
  String datePickerYear(int yearIndex) => _base.datePickerYear(yearIndex);

  @override
  String datePickerMediumDate(DateTime date) => _base.datePickerMediumDate(date);

  @override
  String datePickerHour(int hour) => _base.datePickerHour(hour);

  @override
  String datePickerMinute(int minute) => _base.datePickerMinute(minute);

  @override
  String? datePickerHourSemanticsLabel(int hour) =>
      _base.datePickerHourSemanticsLabel(hour);

  @override
  String? datePickerMinuteSemanticsLabel(int minute) =>
      _base.datePickerMinuteSemanticsLabel(minute);

  @override
  String get searchTextFieldPlaceholderLabel => _base.searchTextFieldPlaceholderLabel;

  @override
  String get cancelButtonLabel => _base.cancelButtonLabel;

  @override
  // TODO: implement backButtonLabel
  String get backButtonLabel => throw UnimplementedError();

  @override
  // TODO: implement clearButtonLabel
  String get clearButtonLabel => throw UnimplementedError();

  @override
  String datePickerStandaloneMonth(int monthIndex) {
    // TODO: implement datePickerStandaloneMonth
    throw UnimplementedError();
  }

  @override
  // TODO: implement lookUpButtonLabel
  String get lookUpButtonLabel => throw UnimplementedError();

  @override
  // TODO: implement menuDismissLabel
  String get menuDismissLabel => throw UnimplementedError();

  @override
  // TODO: implement noSpellCheckReplacementsLabel
  String get noSpellCheckReplacementsLabel => throw UnimplementedError();

  @override
  // TODO: implement searchWebButtonLabel
  String get searchWebButtonLabel => throw UnimplementedError();

  @override
  // TODO: implement shareButtonLabel
  String get shareButtonLabel => throw UnimplementedError();

  @override
  String timerPickerHour(int hour) {
    // TODO: implement timerPickerHour
    throw UnimplementedError();
  }

  @override
  String? timerPickerHourLabel(int hour) {
    // TODO: implement timerPickerHourLabel
    throw UnimplementedError();
  }

  @override
  // TODO: implement timerPickerHourLabels
  List<String> get timerPickerHourLabels => throw UnimplementedError();

  @override
  String timerPickerMinute(int minute) {
    // TODO: implement timerPickerMinute
    throw UnimplementedError();
  }

  @override
  String? timerPickerMinuteLabel(int minute) {
    // TODO: implement timerPickerMinuteLabel
    throw UnimplementedError();
  }

  @override
  // TODO: implement timerPickerMinuteLabels
  List<String> get timerPickerMinuteLabels => throw UnimplementedError();

  @override
  String timerPickerSecond(int second) {
    // TODO: implement timerPickerSecond
    throw UnimplementedError();
  }

  @override
  String? timerPickerSecondLabel(int second) {
    // TODO: implement timerPickerSecondLabel
    throw UnimplementedError();
  }

  @override
  // TODO: implement timerPickerSecondLabels
  List<String> get timerPickerSecondLabels => throw UnimplementedError();

  @override
  // TODO: implement collapsedHint
  String get collapsedHint => throw UnimplementedError();

  @override
  // TODO: implement expandedHint
  String get expandedHint => throw UnimplementedError();

  @override
  // TODO: implement expansionTileCollapsedHint
  String get expansionTileCollapsedHint => throw UnimplementedError();

  @override
  // TODO: implement expansionTileCollapsedTapHint
  String get expansionTileCollapsedTapHint => throw UnimplementedError();

  @override
  // TODO: implement expansionTileExpandedHint
  String get expansionTileExpandedHint => throw UnimplementedError();

  @override
  // TODO: implement expansionTileExpandedTapHint
  String get expansionTileExpandedTapHint => throw UnimplementedError();

// …其余所有成员：全部 `=> _base.xxx`
}


class ChineseArabicMonthDelegate extends LocalizationsDelegate<CupertinoLocalizations> {
  const ChineseArabicMonthDelegate();

  @override
  bool isSupported(Locale locale) => locale.languageCode == 'zh';

  @override
  Future<CupertinoLocalizations> load(Locale locale) async {
    // 这里的 GlobalCupertinoLocalizations.delegate 是 Flutter 官方提供的中文实现
    // 我们先加载它，然后用我们的类包装一层
    final CupertinoLocalizations delegate = await GlobalCupertinoLocalizations.delegate.load(locale);
    return MyCupertinoLocalizations(delegate);
  }

  @override
  bool shouldReload(ChineseArabicMonthDelegate old) => false;
}