42 lines
1.5 KiB
Dart
42 lines
1.5 KiB
Dart
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import 'package:flutter_bloc/flutter_bloc.dart';
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import 'package:pmd_labs/data/repositories/album_repository.dart';
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import 'package:pmd_labs/home_page/bloc/state.dart';
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import '../home_page.dart';
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import 'events.dart';
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class HomeBloc extends Bloc<HomeEvent, HomeState> {
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final AlbumRepository repo;
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HomeBloc(this.repo) : super(const HomeState()) {
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on<HomeLoadDataEvent>(_onLoadData);
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}
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Future<void> _onLoadData(HomeLoadDataEvent event, Emitter<HomeState> emit) async {
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if (event.nextPage == null) {
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emit(state.copyWith(isLoading: true));
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} else {
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emit(state.copyWith(isPaginationLoading: true));
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}
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try {
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final data = await repo.loadData(albumName: event.search, page: event.nextPage ?? 1);
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HomeData? updatedData;
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Set<String> existingIds;
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if (event.nextPage != null && state.data != null) {
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final existingData = state.data!.data ?? [];
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final newDataList = data;
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existingIds = existingData.map((item) => item.id).toSet();
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final newData = newDataList?.where((newItem) => !existingIds.contains(newItem.id)).toList();
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updatedData = HomeData(data: [...existingData, ...?newData], nextPage: (event.nextPage ?? 1) + 1);
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} else {
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updatedData = HomeData(data: data, nextPage: (event.nextPage ?? 1) + 1);
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}
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emit(state.copyWith(data: updatedData, isLoading: false, isPaginationLoading: false));
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} catch (e) {
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emit(state.copyWith(isLoading: false, isPaginationLoading: false));
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print("Error loading data: $e");
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}
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}
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}
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