WIP - More decoupling of data layer from ui layer

lib/features/saved_view/cubit/saved_view_cubit.dart

@@ -0,0 +1,57 @@
+import 'dart:async';
+
+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:injectable/injectable.dart';
+import 'package:paperless_api/paperless_api.dart';
+import 'package:paperless_mobile/core/repository/saved_view_repository.dart';
+import 'package:paperless_mobile/features/saved_view/cubit/saved_view_state.dart';
+
+class SavedViewCubit extends Cubit<SavedViewState> {
+  final SavedViewRepository _repository;
+  StreamSubscription? _subscription;
+
+  SavedViewCubit(this._repository) : super(SavedViewState(value: {})) {
+    _subscription = _repository.savedViews.listen(
+      (savedViews) => emit(state.copyWith(value: savedViews)),
+    );
+  }
+
+  void selectView(SavedView? view) {
+    emit(SavedViewState(value: state.value, selectedSavedViewId: view?.id));
+  }
+
+  Future<SavedView> add(SavedView view) async {
+    final savedView = await _repository.create(view);
+    emit(
+      SavedViewState(
+        value: {...state.value, savedView.id!: savedView},
+        selectedSavedViewId: state.selectedSavedViewId,
+      ),
+    );
+    return savedView;
+  }
+
+  Future<int> remove(SavedView view) async {
+    final id = await _repository.delete(view);
+    if (state.selectedSavedViewId == id) {
+      resetSelection();
+    }
+    return id;
+  }
+
+  Future<void> initialize() async {
+    final views = await _repository.findAll();
+    final values = {for (var element in views) element.id!: element};
+    emit(SavedViewState(value: values));
+  }
+
+  void resetSelection() {
+    emit(SavedViewState(value: state.value));
+  }
+
+  @override
+  Future<void> close() {
+    _subscription?.cancel();
+    return super.close();
+  }
+}

lib/features/saved_view/cubit/saved_view_state.dart

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+import 'package:equatable/equatable.dart';
+import 'package:paperless_api/paperless_api.dart';
+
+class SavedViewState with EquatableMixin {
+  final Map<int, SavedView> value;
+  final int? selectedSavedViewId;
+
+  SavedViewState({
+    required this.value,
+    this.selectedSavedViewId,
+  });
+
+  @override
+  List<Object?> get props => [
+        value,
+        selectedSavedViewId,
+      ];
+
+  SavedViewState copyWith({
+    Map<int, SavedView>? value,
+    int? selectedSavedViewId,
+    bool overwriteSelectedSavedViewId = false,
+  }) {
+    return SavedViewState(
+      value: value ?? this.value,
+      selectedSavedViewId: overwriteSelectedSavedViewId
+          ? selectedSavedViewId
+          : this.selectedSavedViewId,
+    );
+  }
+}