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');
      }
    }
  }
}