PMU-PIbd-31-Potapov-N-S/lib/presentation/home_page/bloc/bloc.dart

43 lines
1.1 KiB
Dart

import 'dart:async';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:pmu/data/repositories/api_repository.dart';
import 'package:pmu/presentation/home_page/bloc/events.dart';
import 'package:pmu/presentation/home_page/bloc/state.dart';
class HomeBloc extends Bloc<HomeEvent, HomeState> {
final ApiRepository repository;
HomeBloc(this.repository) : super(const HomeState()) {
on<HomeLoadDataEvent>(_onLoadData);
}
Future<void> _onLoadData(
HomeLoadDataEvent event, Emitter<HomeState> emit) async {
if (event.nextPageNumber == null) {
emit(state.copyWith(isLoading: true));
} else {
emit(state.copyWith(isPaginationLoading: true));
}
String? error;
final data = await repository.loadData(
q: event.search,
pageNumber: event.nextPageNumber ?? 0,
onError: (e) => error = e,
);
if (event.nextPageNumber != null) {
data?.data?.insertAll(0, state.data?.data ?? []);
}
emit(state.copyWith(
isLoading: false,
isPaginationLoading: false,
data: data,
error: error,
));
}
}