Initial commit

lib/core/bloc/label_cubit.dart

@@ -0,0 +1,53 @@
+import 'package:flutter/foundation.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:flutter_paperless_mobile/features/labels/model/label.model.dart';
+import 'package:flutter_paperless_mobile/features/labels/repository/label_repository.dart';
+
+abstract class LabelCubit<T extends Label> extends Cubit<Map<int, T>> {
+  final LabelRepository labelRepository;
+  LabelCubit(this.labelRepository) : super({});
+
+  @protected
+  void loadFrom(Iterable<T> items) => emit(Map.fromIterable(items, key: (e) => (e as T).id!));
+
+  Future<T> add(T item) async {
+    assert(item.id == null);
+    final addedItem = await save(item);
+    final newState = {...state};
+    newState.putIfAbsent(addedItem.id!, () => addedItem);
+    emit(newState);
+    return addedItem;
+  }
+
+  Future<T> replace(T item) async {
+    assert(item.id != null);
+    final updatedItem = await update(item);
+    final newState = {...state};
+    newState[item.id!] = updatedItem;
+    emit(newState);
+    return updatedItem;
+  }
+
+  Future<void> remove(T item) async {
+    assert(item.id != null);
+    if (state.containsKey(item.id)) {
+      final deletedId = await delete(item);
+      final newState = {...state};
+      newState.remove(deletedId);
+      emit(newState);
+    }
+  }
+
+  void reset() => emit({});
+
+  Future<void> initialize();
+
+  @protected
+  Future<T> save(T item);
+
+  @protected
+  Future<T> update(T item);
+
+  @protected
+  Future<int> delete(T item);
+}