liangchengyou / wow_english

  import 'package:bloc/bloc.dart';

  import 'package:flutter/cupertino.dart';
  import 'package:flutter/foundation.dart';
  import 'package:wow_english/models/app_config_entity.dart';

  import '../../common/core/app_config_helper.dart';

  import 'event.dart';
  import 'state.dart';
  

  class ModuleSelectBloc extends Bloc<ModuleSelectEvent, ModuleSelectState> {

    ModuleSelectBloc() : super(ModuleSelectState().init()) {
      on<InitEvent>(_init);
    }
  
    void _init(InitEvent event, Emitter<ModuleSelectState> emit) async {

      await _checkUpdate(emit);
      debugPrint('WQF ModuleSelectBloc _init');
    }
  
    Future<void> _checkUpdate(Emitter<ModuleSelectState> emit) async {
      int localVersion = int.parse(await AppConfigHelper.getAppVersion());
      AppConfigEntity? appConfigEntity = await AppConfigHelper.getAppConfig();
      if (appConfigEntity == null) {
        return;
      }

      if (defaultTargetPlatform == TargetPlatform.iOS) {

        if (localVersion < (appConfigEntity.iosVersion ?? 0) &&

            appConfigEntity.iosRecommendUpdate == true) {
          emit(UpdateDialogState(
              appConfigEntity.iosForceUpdate ?? false, appConfigEntity));
        }
      } else {

        if (localVersion < (appConfigEntity.androidVersion ?? 0) &&

            appConfigEntity.androidRecommendUpdate == true) {
          emit(UpdateDialogState(
            appConfigEntity.androidForceUpdate ?? false, appConfigEntity,
          ));
        }
      }

    }
  }