bloc.dart
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import 'package:bloc/bloc.dart';
import 'package:wow_english/pages/unit/widget/home_tab_header_widget.dart';
import 'package:wow_english/utils/audio_player_util.dart';
import '../../common/core/module_cache.dart';
import '../../common/request/dao/lesson_dao.dart';
import '../../common/request/exception.dart';
import '../../models/course_module_entity.dart';
import '../../models/course_unit_entity.dart';
import '../../route/route.dart';
import '../../utils/loading.dart';
import '../../utils/toast_util.dart';
import 'event.dart';
import 'state.dart';
class UnitBloc extends Bloc<UnitEvent, UnitState> {
CourseModuleEntity? _moduleEntity;
CourseModuleEntity? get moduleEntity => _moduleEntity;
CourseUnitEntity? _unitData;
CourseUnitEntity? get unitData => _unitData;
bool exchangeResult = false;
UnitBloc(CourseModuleEntity? courseEntity) : super(UnitState().init()) {
///缓存当前模块信息
setIfNotNull(courseEntity);
on<RequestUnitDataEvent>(_requestUnitDatas);
on<UnitInitEvent>((event, emit) {
AudioPlayerUtil.getInstance().playAudio(AudioPlayerUtilType.inMyTummy);
});
}
void _requestUnitDatas(
RequestUnitDataEvent event, Emitter<UnitState> emitter) async {
try {
await loading(() async {
_unitData = await LessonDao.courseUnit(event.moduleId);
setIfNull(_unitData);
emitter(UnitDataLoadState());
});
} catch (e) {
if (e is ApiException) {
showToast(e.message ?? '请求失败,请检查网络连接');
}
}
}
///如果从模块页选择回来，则刷新缓存，否则认为是从
void setIfNotNull(CourseModuleEntity? courseModuleEntity) {
if (courseModuleEntity != null) {
_moduleEntity = courseModuleEntity;
} else {
_moduleEntity = ModuleCache.instance.currentModule;
}
}
///理论上只有没有缓存的情况下首次进入单元列表，数据请求成功后构建第一次缓存
void setIfNull(CourseUnitEntity? courseUnitData) {
if (_moduleEntity == null && courseUnitData != null) {
_moduleEntity = CourseModuleEntity.of(
courseUnitData.nowCourseModuleId,
courseUnitData.courseModuleCode,
courseUnitData.nowCourseModuleName,
courseUnitData.courseModuleThemeColor);
ModuleCache.instance.currentModule = _moduleEntity;
}
}
String? getCourseModuleCode() {
return _moduleEntity?.code ?? _unitData?.courseModuleCode;
}
Future<void> headerActionEvent(HeaderActionType type) async {
await AudioPlayerUtil.getInstance().pause();
if (type == HeaderActionType.video) {
//视频跟读暂时隐藏了
pushNamed(AppRouteName.reAfter);
} else if (type == HeaderActionType.phase) {
pushNamed(AppRouteName.courseModule).then((value) => {
AudioPlayerUtil.getInstance()
.playAudio(AudioPlayerUtilType.inMyTummy)
});
;
} else if (type == HeaderActionType.listen) {
pushNamed(AppRouteName.listen).then((value) => {
AudioPlayerUtil.getInstance()
.playAudio(AudioPlayerUtilType.inMyTummy)
});
} else if (type == HeaderActionType.shop) {
pushNamed(AppRouteName.shop).then((value) => {
AudioPlayerUtil.getInstance()
.playAudio(AudioPlayerUtilType.inMyTummy),
exchangeResult = value['exchange']
});
} else if (type == HeaderActionType.user) {
pushNamed(AppRouteName.user);
}
}
}