import 'package:e2ee_chat/common/global.dart';
import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:intl/intl.dart';

class GmLocalizations {

  static GmLocalizations of(BuildContext context) {
    return Localizations.of<GmLocalizations>(context, GmLocalizations) ?? GmLocalizations();
  }

  //TODO: Localizations

  String get title => Intl.message('MeChat', name: 'title');

  String get userName => Intl.message('Username', name: 'username');
  String get userNameOrEmail => Intl.message('Username or Email', name: 'username or email');
  String get userNameRequired => Intl.message('Username required', name: 'username required');
  String get password => Intl.message('Password', name: 'password');
  String get passwordRequired => Intl.message('PasswordRequired', name: 'password required');
  String get loading => Intl.message('Loading...', name: 'loading');
  String get userNameOrPasswordWrong => Intl.message('Username or password wrong', name: 'username or password wrong');
  String get home => Intl.message('Home', name: 'home');
  String get login => Intl.message('Login', name: 'login');
  String get logout => Intl.message('Logout', name: 'logout');
  String get language => Intl.message('Language', name: 'language');
  String get auto => Intl.message('Auto', name: 'auto');
  String get theme => Intl.message('Theme', name: 'theme');
  String get search => Intl.message('Search', name: 'search');
  String get searchUser => Intl.message('Find User', name: 'find user');
  String get addFriendFailed => Intl.message('Add friend failed', name: 'add friend failed');
  String get friendRequest => Intl.message('Friends Request', name: 'friend request');
}

//Locale代理类
class GmLocalizationsDelegate extends LocalizationsDelegate<GmLocalizations> {
  const GmLocalizationsDelegate();

  //是否支持某个Local
  @override
  bool isSupported(Locale locale) => Global.locales.contains(locale.languageCode);

  // Flutter会调用此类加载相应的Locale资源类
  @override
  Future<GmLocalizations> load(Locale locale) {
    print("$locale");
    return SynchronousFuture<GmLocalizations>(
        GmLocalizations()
    );
  }

  // 当Localizations Widget重新build时，是否调用load重新加载Locale资源.
  @override
  bool shouldReload(GmLocalizationsDelegate old) => false;
}