liangchengyou / wow_english

  import 'package:flutter/cupertino.dart';
  import 'package:flutter_bloc/flutter_bloc.dart';
  import 'package:video_player/video_player.dart';

  import 'package:wow_english/pages/section/subsection/base_section/bloc.dart';
  import 'package:wow_english/pages/section/subsection/base_section/event.dart';
  import 'package:wow_english/pages/section/subsection/base_section/state.dart';

  import '../../../../common/request/dao/listen_dao.dart';
  import '../../../../common/request/exception.dart';
  import '../../../../models/course_process_entity.dart';
  import '../../../../utils/loading.dart';
  import '../../../../utils/toast_util.dart';
  

  part 'look_video_event.dart';
  part 'look_video_state.dart';
  

  class LookVideoBloc extends BaseSectionBloc<BaseSectionEvent, BaseSectionState> {

    final String? _videoUrl;

    String? get videoUrl => (_videoUrl?.isNotEmpty == true) ? _videoUrl : _entity?.videos?.videoUrl ?? '';

    final String? _typeTitle;
    String? get typeTitle => _typeTitle;
    final String? _courseLessonId;
    String? get courseLessonId => _courseLessonId;
    final bool _isTopic;
    bool get isTopic => _isTopic;
  

    CourseProcessEntity? _entity;
  
    CourseProcessEntity? get entity => _entity;
  

    LookVideoBloc(this._videoUrl, this._typeTitle, this._courseLessonId, this._isTopic) : super(LookVideoInitial()) {

      on<LookVideoEvent>((event, emit) {
        // TODO: implement event handler
      });

      on<RequestDataEvent>(_requestData);

      on<SectionAgainEvent>((event, emit) {
        emit(SectionAgainState());
      });

    }

  
    ///请求数据
    void _requestData(
        RequestDataEvent event, Emitter<BaseSectionState> emitter) async {
      try {
        await loading(() async {
          _entity = await ListenDao.process(courseLessonId);
          emitter(RequestDataState());
        });
      } catch (e) {
        if (e is ApiException) {
          showToast(e.message ?? '请求失败,请检查网络连接');
        }
      }
    }

  }