import 'package:e2ee_chat/view/add_friend.dart';
import 'package:e2ee_chat/view/user_chat.dart';
import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import 'package:provider/single_child_widget.dart';
import 'package:flutter_localizations/flutter_localizations.dart';

import 'common/global.dart';
import 'l10n/localization_intl.dart';
import 'presenter/locale.dart';
import 'presenter/theme.dart';
import 'presenter/login.dart';
import 'view/friend_request.dart';
import 'view/language.dart';
import 'view/login.dart';
import 'view/theme.dart';
import 'view/home.dart';

void main() {
  WidgetsFlutterBinding.ensureInitialized();
  Global.init().then((e) => runApp(MyApp()));
}

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MultiProvider(
      providers: <SingleChildWidget>[
        ChangeNotifierProvider.value(value: ThemeModel()),
        ChangeNotifierProvider.value(value: LocaleModel()),
        ChangeNotifierProvider.value(value: LoginPresenter()),
      ],
      child: Consumer2<ThemeModel, LocaleModel>(
        builder: (BuildContext context, themeModel, localeModel, Widget? child) {
          return MaterialApp(
            navigatorKey: Global.navigatorKey,
            theme: ThemeData(
              primarySwatch: themeModel.theme,
            ),
            home: HomeRoute(), //应用主页
            locale: localeModel.locale,
            //我们只支持美国英语和中文简体
            supportedLocales: Global.locales,
            localizationsDelegates: [
              // 本地化的代理类
              GlobalMaterialLocalizations.delegate,
              GlobalWidgetsLocalizations.delegate,
              GmLocalizationsDelegate()
            ],
            localeResolutionCallback:
                (Locale? _locale, Iterable<Locale> supportedLocales) {
              if (localeModel.locale != null) {
                //如果已经选定语言，则不跟随系统
                return localeModel.locale;
              } else {
                Locale? locale;
                //APP语言跟随系统语言，如果系统语言不是中文简体或美国英语，
                //则默认使用美国英语
                if (supportedLocales.contains(_locale)) {
                  locale = _locale;
                } else {
                  locale = Locale('en');
                }
                return locale;
              }
            },
            // 注册命名路由表
            routes: <String, WidgetBuilder>{
              "login": (context) => LoginRoute(),
              "themes": (context) => ThemeRoute(),
              "language": (context) => LanguageRoute(),
              "add friend": (context) => AddFriendView(),
              "user chat": (context) => UserChatView(),
              "friend request": (context) => FriendRequestListView()
            },
          );
        },
      ),
    );
  }
}