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 '../../common/request/dao/system_dao.dart';
  import '../../models/app_version_entity.dart';
  import '../../utils/log_util.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 {

      if (AppConfigHelper.checkedUpdate) {
        return;
      }

      int localVersion = int.parse(await AppConfigHelper.getAppVersion());

      AppVersionEntity? appVersionEntity = await SystemDao.getVersionInfo();
      AppConfigHelper.checkedUpdate = true;
      if (appVersionEntity == null) {

        return;
      }

      Log.d("WQF _checkUpdate appVersionEntity: $appVersionEntity localVersion=$localVersion");

      if (defaultTargetPlatform == TargetPlatform.iOS) {

        if (localVersion < int.parse(appVersionEntity.version ?? '0')) {

          emit(UpdateDialogState(

              appVersionEntity.volType == UpdateStrategy.FORCE.name, appVersionEntity));

        }
      } else {

        if (localVersion < int.parse(appVersionEntity.version ?? '0')) {

          emit(UpdateDialogState(

              appVersionEntity.volType == UpdateStrategy.FORCE.name, appVersionEntity));

        }
      }

    }
  }