zhiying_base_widget/lib/pages/team_page/bloc/team_bloc.dart

import 'dart:async';

import 'package:bloc/bloc.dart';
import 'package:equatable/equatable.dart';
import 'package:flutter/cupertino.dart';
import 'package:zhiying_base_widget/pages/team_page/bloc/team_repository.dart';
import 'package:zhiying_base_widget/pages/team_page/model/team_data_model.dart';
import 'package:zhiying_base_widget/pages/team_page/model/team_style_model.dart';
import 'package:zhiying_comm/zhiying_comm.dart';

part 'team_event.dart';

part 'team_state.dart';

class TeamBloc extends Bloc<TeamEvent, TeamState> {
  // TeamBloc() : super(TeamInitial());

  TeamRepository repository;

  TeamBloc({@required this.repository});

  @override
  TeamState get initialState => TeamInitial();

  @override
  Stream<TeamState> mapEventToState(
    TeamEvent event,
  ) async* {

    /// 初始化
    if (event is TeamInitEvent) {
      yield* _mapInitEventToState(event);
    }

  }

  /// 初始化数据
  Stream<TeamState> _mapInitEventToState(TeamInitEvent event) async* {
    var cache = await repository.fetchCacheStyleData(event.data);
    if (!EmptyUtil.isEmpty(cache)) {
      yield TeamLoadedState(styleModel: cache);
    }
    var resultStyle = await repository.fetchNetStyleData(event.data);
    if (!EmptyUtil.isEmpty(resultStyle)) {
      yield TeamLoadedState(styleModel: resultStyle);
    }
    var resultData = await repository.fetchNetData();
    if (!EmptyUtil.isEmpty(resultData) && (!EmptyUtil.isEmpty(resultStyle) || !EmptyUtil.isEmpty(cache))) {
      yield TeamLoadedState(dataModel: resultData, styleModel: !EmptyUtil.isEmpty(resultStyle) ? resultStyle : cache);
    } else {
      yield TeamErrorState();
    }
  }



}