Files
Client/lib/state/app/modules/files/bloc/files_bloc.dart
T

83 lines
2.7 KiB
Dart

import '../../../../../api/marianumcloud/webdav/queries/listFiles/listFilesResponse.dart';
import '../../../infrastructure/loadableState/loading_error.dart';
import '../../../infrastructure/utilityWidgets/loadableHydratedBloc/loadable_hydrated_bloc.dart';
import '../../../infrastructure/utilityWidgets/loadableHydratedBloc/loadable_hydrated_bloc_event.dart';
import '../repository/files_repository.dart';
import 'files_event.dart';
import 'files_state.dart';
class FilesBloc extends LoadableHydratedBloc<FilesEvent, FilesState, FilesRepository> {
final List<String> initialPath;
FilesBloc({this.initialPath = const []});
@override
FilesRepository repository() => FilesRepository();
@override
FilesState fromNothing() => FilesState(currentPath: initialPath);
@override
FilesState fromStorage(Map<String, dynamic> json) => FilesState.fromJson(json);
@override
Map<String, dynamic>? toStorage(FilesState state) => null;
@override
Future<void> gatherData() async {
final path = innerState?.currentPath ?? initialPath;
await _query(path);
}
Future<void> refresh() async {
add(RefetchStarted<FilesState>());
final path = innerState?.currentPath ?? initialPath;
await _query(path);
}
Future<void> setPath(List<String> path) async {
add(Emit((s) => s.copyWith(currentPath: path, listing: null)));
add(RefetchStarted<FilesState>());
await _query(path);
}
Future<void> createFolder(String name) async {
final path = innerState?.currentPath ?? initialPath;
await repo.data.createFolder('${path.join('/')}/$name');
await refresh();
}
Future<void> _query(List<String> path) async {
final pathString = path.isEmpty ? '/' : path.join('/');
Object? capturedError;
ListFilesResponse? listing;
try {
listing = await repo.data.listFiles(
pathString,
onCacheData: (cached) {
// Cached payload arrives before the network call settles. Surface it
// immediately via Emit so the listing is visible while isLoading
// stays true and the top loading bar keeps spinning.
cached.files.removeWhere((file) => file.name.isEmpty || file.name == path.lastOrNull);
add(Emit((s) => s.copyWith(listing: cached)));
},
onError: (e) => capturedError = e,
);
} catch (e) {
capturedError = e;
}
if (listing != null) {
listing.files.removeWhere((file) => file.name.isEmpty || file.name == path.lastOrNull);
add(DataGathered((s) => s.copyWith(listing: listing)));
}
if (capturedError != null) {
add(Error(LoadingError(
message: capturedError.toString(),
allowRetry: true,
)));
}
}
}