reworked operation (#12)

Reviewed-on: #12
Co-authored-by: Mark M2 Macbook <marco@catelli.it>
Co-committed-by: Mark M2 Macbook <marco@catelli.it>

lib/features/operations/blocs/operation_files_bloc.dart

@@ -0,0 +1,389 @@
+import 'dart:async';
+import 'package:file_picker/file_picker.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:equatable/equatable.dart';
+import 'package:flux/core/blocs/session/session_cubit.dart';
+import 'package:flux/core/utils/extensions.dart';
+import 'package:flux/features/attachments/models/attachment_model.dart';
+import 'package:flux/features/operations/data/operations_repository.dart';
+import 'package:get_it/get_it.dart';
+import 'package:image_picker/image_picker.dart';
+
+part 'operation_files_events.dart';
+part 'operation_files_state.dart';
+
+class OperationFilesBloc
+    extends Bloc<OperationFilesEvent, OperationFilesState> {
+  final _repository = GetIt.I.get<OperationsRepository>();
+  final String? operationId;
+
+  OperationFilesBloc({this.operationId})
+    : super(
+        OperationFilesState(
+          status: OperationFilesStatus.initial,
+          operationId: operationId,
+        ),
+      ) {
+    on<OperationsavedEvent>(_onOperationsaved);
+    on<LoadOperationFilesEvent>(_onLoadOperationFiles);
+    on<AddOperationFilesEvent>(_onAddOperationFiles);
+    on<UploadOperationFilesEvent>(_onUploadOperationFiles);
+    on<DeleteOperationFilesEvent>(_onDeleteOperationFiles);
+    on<ToggleOperationFileSelectionEvent>(_onToggleOperationFileSelection);
+    on<LinkFilesToCustomerEvent>(_onLinkFilesToCustomer);
+    on<RenameOperationFileEvent>(_onRenameOperationFile);
+    on<DeleteSpecificOperationFileEvent>(_onDeleteSpecificOperationFiles);
+    on<SelectAllOperationFilesEvent>(_onSelectAllOperationFiles);
+    on<ClearOperationFileSelectionEvent>(_onClearOperationFileSelection);
+
+    // Se il BLoC nasce con un ID, accendiamo subito lo stream!
+    if (operationId != null) {
+      add(LoadOperationFilesEvent(operationId: operationId));
+    }
+  }
+
+  FutureOr<void> _onOperationsaved(
+    OperationsavedEvent event,
+    Emitter<OperationFilesState> emit,
+  ) async {
+    // 1. Aggiorniamo l'ID e mettiamo in loading
+    emit(
+      state.copyWith(
+        operationId: event.operationId,
+        status: OperationFilesStatus.uploading,
+      ),
+    );
+
+    // 2. RECUPERO E UPLOAD DEI FILE "PARCHEGGIATI" (Pratica Nuova)
+    if (state.localFiles.isNotEmpty) {
+      try {
+        final List<Future<void>> uploadTasks = [];
+
+        for (var file in state.localFiles) {
+          // Ricreiamo il PlatformFile dal nostro AttachmentModel
+          // così il repository lo accetta senza fare storie!
+          final fakePlatformFile = PlatformFile(
+            name: '${file.name}.${file.extension}',
+            size: file.fileSize,
+            bytes: file.localBytes,
+          );
+
+          uploadTasks.add(
+            _repository.uploadAndRegisterOperationFile(
+              operationId: event.operationId, // L'ID APPENA NATO!
+              pickedFile: fakePlatformFile,
+            ),
+          );
+        }
+
+        // Lanciamo tutti gli upload in parallelo
+        await Future.wait(uploadTasks);
+      } catch (e) {
+        emit(
+          state.copyWith(
+            status: OperationFilesStatus.failure,
+            error: "Errore upload post-salvataggio: $e",
+          ),
+        );
+        return; // Ci fermiamo qui se esplode qualcosa
+      }
+    }
+
+    // 3. FINE DEI GIOCHI! Svuotiamo i locali, passiamo a success e accendiamo lo Stream
+    emit(state.copyWith(localFiles: [], status: OperationFilesStatus.success));
+
+    add(LoadOperationFilesEvent(operationId: event.operationId));
+  }
+
+  FutureOr<void> _onLoadOperationFiles(
+    LoadOperationFilesEvent event,
+    Emitter<OperationFilesState> emit,
+  ) async {
+    final currentId = event.operationId ?? state.operationId;
+
+    if (currentId != null) {
+      emit(state.copyWith(status: OperationFilesStatus.loading));
+
+      await emit.forEach(
+        _repository.getOperationFilesStream(currentId),
+        onData: (List<AttachmentModel> data) => state.copyWith(
+          status: OperationFilesStatus.success,
+          remoteFiles: data,
+        ),
+        onError: (error, stackTrace) => state.copyWith(
+          status: OperationFilesStatus.failure,
+          error: error.toString(),
+        ),
+      );
+    }
+  }
+
+  void _onAddOperationFiles(
+    AddOperationFilesEvent event,
+    Emitter<OperationFilesState> emit,
+  ) async {
+    final currentId = state.operationId;
+
+    // BIVIO 1: PRATICA NUOVA (Nessun ID - salvataggio locale)
+    if (currentId == null) {
+      final companyId = GetIt.I.get<SessionCubit>().state.company!.id!;
+      final newLocalFiles = event.files.map((file) {
+        return AttachmentModel(
+          id: null,
+          companyId: companyId,
+          operationId: '', // Sarà riempito al salvataggio
+          name: file.name.fileNameWithoutExtension(),
+          extension: file.name.fileExtension(),
+          storagePath: '',
+          fileSize: file.size,
+          localBytes: file.bytes,
+        );
+      }).toList();
+
+      emit(
+        state.copyWith(
+          localFiles: [...state.localFiles, ...newLocalFiles],
+          status: OperationFilesStatus.success,
+        ),
+      );
+      return;
+    }
+
+    // BIVIO 2: PRATICA ESISTENTE (Abbiamo l'ID - Upload immediato)
+    emit(state.copyWith(status: OperationFilesStatus.uploading));
+    try {
+      final List<Future<void>> uploadTasks = [];
+      for (var file in event.files) {
+        uploadTasks.add(
+          _repository.uploadAndRegisterOperationFile(
+            operationId: currentId,
+            pickedFile: file,
+          ),
+        );
+      }
+      await Future.wait(uploadTasks);
+      emit(state.copyWith(status: OperationFilesStatus.success));
+    } catch (e) {
+      emit(
+        state.copyWith(
+          status: OperationFilesStatus.failure,
+          error: e.toString(),
+        ),
+      );
+    }
+  }
+
+  FutureOr<void> _onUploadOperationFiles(
+    UploadOperationFilesEvent event,
+    Emitter<OperationFilesState> emit,
+  ) async {
+    if ((event.pickedFiles == null || event.pickedFiles!.isEmpty) &&
+        (event.photos == null || event.photos!.isEmpty)) {
+      return;
+    }
+
+    if (state.operationId == null) return;
+
+    emit(state.copyWith(status: OperationFilesStatus.uploading));
+    try {
+      final List<Future<void>> uploadTasks = [];
+
+      // 1. Gestione Documenti normali (PlatformFile)
+      if (event.pickedFiles != null) {
+        for (var file in event.pickedFiles!) {
+          uploadTasks.add(
+            _repository.uploadAndRegisterOperationFile(
+              operationId: state.operationId!,
+              pickedFile: file,
+            ),
+          );
+        }
+      }
+
+      // 2. Gestione Foto Fotocamera (XFile)
+      if (event.photos != null) {
+        for (var photo in event.photos!) {
+          // Leggiamo i byte asincronamente
+          final bytes = await photo.readAsBytes();
+          final fileSize = await photo.length();
+
+          // Lo travestiamo da PlatformFile per passarlo al Repository!
+          final fakePlatformFile = PlatformFile(
+            name: photo.name,
+            size: fileSize,
+            bytes: bytes,
+            path: photo.path,
+          );
+
+          uploadTasks.add(
+            _repository.uploadAndRegisterOperationFile(
+              operationId: state.operationId!,
+              pickedFile: fakePlatformFile,
+            ),
+          );
+        }
+      }
+
+      // Esecuzione parallela di tutti i documenti e foto
+      await Future.wait(uploadTasks);
+      emit(state.copyWith(status: OperationFilesStatus.success));
+    } catch (e) {
+      emit(
+        state.copyWith(
+          status: OperationFilesStatus.failure,
+          error: e.toString(),
+        ),
+      );
+    }
+  }
+
+  FutureOr<void> _onDeleteOperationFiles(
+    DeleteOperationFilesEvent event,
+    Emitter<OperationFilesState> emit,
+  ) async {
+    emit(state.copyWith(status: OperationFilesStatus.loading));
+    try {
+      await _repository.deleteOperationFiles(state.selectedFiles);
+      emit(
+        state.copyWith(status: OperationFilesStatus.success, selectedFiles: []),
+      );
+    } catch (e) {
+      emit(
+        state.copyWith(
+          status: OperationFilesStatus.failure,
+          error: e.toString(),
+        ),
+      );
+    }
+  }
+
+  FutureOr<void> _onToggleOperationFileSelection(
+    ToggleOperationFileSelectionEvent event,
+    Emitter<OperationFilesState> emit,
+  ) {
+    final selectedFiles = List<AttachmentModel>.from(state.selectedFiles);
+    if (selectedFiles.contains(event.file)) {
+      selectedFiles.remove(event.file);
+    } else {
+      selectedFiles.add(event.file);
+    }
+    emit(state.copyWith(selectedFiles: selectedFiles));
+  }
+
+  void _onSelectAllOperationFiles(
+    SelectAllOperationFilesEvent event,
+    Emitter<OperationFilesState> emit,
+  ) {
+    // Prendiamo TUTTI i file (locali e remoti) e li buttiamo nei selezionati
+    emit(state.copyWith(selectedFiles: state.allFiles));
+  }
+
+  void _onClearOperationFileSelection(
+    ClearOperationFileSelectionEvent event,
+    Emitter<OperationFilesState> emit,
+  ) {
+    // Svuotiamo brutalmente la lista
+    emit(state.copyWith(selectedFiles: []));
+  }
+
+  FutureOr<void> _onLinkFilesToCustomer(
+    LinkFilesToCustomerEvent event,
+    Emitter<OperationFilesState> emit,
+  ) async {
+    if (state.selectedFiles.isEmpty) return;
+
+    // BIVIO 1: PRATICA NUOVA (Modalità Locale)
+    if (state.operationId == null) {
+      // Mappiamo i file locali: se sono tra quelli selezionati, iniettiamo il customerId
+      final updatedLocalFiles = state.localFiles.map((file) {
+        if (state.selectedFiles.contains(file)) {
+          return file.copyWith(customerId: event.customerId);
+        }
+        return file;
+      }).toList();
+
+      emit(
+        state.copyWith(
+          localFiles: updatedLocalFiles,
+          selectedFiles: [], // Svuotiamo la selezione dopo averli associati
+          status: OperationFilesStatus.success, // o un toast di feedback
+        ),
+      );
+      return;
+    }
+
+    // BIVIO 2: PRATICA ESISTENTE (Modalità Remota su DB)
+    emit(state.copyWith(status: OperationFilesStatus.loading));
+    try {
+      final List<Future<void>> linkTasks = [];
+
+      for (var file in state.selectedFiles) {
+        linkTasks.add(
+          _repository.copyFileToCustomer(
+            file: file,
+            customerId: event.customerId,
+          ),
+        );
+      }
+
+      await Future.wait(linkTasks);
+
+      // Svuotiamo la selezione.
+      // NON serve aggiornare la lista a mano, perché il DB si aggiorna
+      // e lo Stream di Supabase spingerà automaticamente in UI i file aggiornati!
+      emit(
+        state.copyWith(status: OperationFilesStatus.success, selectedFiles: []),
+      );
+    } catch (e) {
+      emit(
+        state.copyWith(
+          status: OperationFilesStatus.failure,
+          error: "Errore associazione: $e",
+        ),
+      );
+    }
+  }
+
+  FutureOr<void> _onRenameOperationFile(
+    RenameOperationFileEvent event,
+    Emitter<OperationFilesState> emit,
+  ) async {
+    // BIVIO 1: File Locale (Bozza)
+    if (event.file.localBytes != null) {
+      final updatedLocalFiles = state.localFiles.map((f) {
+        if (f == event.file) {
+          return f.copyWith(name: event.newName);
+        }
+        return f;
+      }).toList();
+      emit(state.copyWith(localFiles: updatedLocalFiles));
+      return;
+    }
+
+    // BIVIO 2: File Remoto (Salvato su DB)
+    emit(state.copyWith(status: OperationFilesStatus.loading));
+    try {
+      await _repository.renameAttachment(event.file.id!, event.newName);
+      emit(state.copyWith(status: OperationFilesStatus.success));
+    } catch (e) {
+      emit(
+        state.copyWith(
+          status: OperationFilesStatus.failure,
+          error: "Errore rinomina: $e",
+        ),
+      );
+    }
+  }
+
+  FutureOr<void> _onDeleteSpecificOperationFiles(
+    DeleteSpecificOperationFileEvent event,
+    Emitter<OperationFilesState> emit,
+  ) {
+    if (event.file.localBytes != null) {
+      final updatedLocalFiles = state.localFiles
+          .where((f) => f != event.file)
+          .toList();
+      emit(state.copyWith(localFiles: updatedLocalFiles));
+    }
+  }
+}

lib/features/operations/blocs/operation_files_events.dart

@@ -0,0 +1,81 @@
+part of 'operation_files_bloc.dart';
+
+abstract class OperationFilesEvent extends Equatable {
+  const OperationFilesEvent();
+
+  @override
+  List<Object?> get props => [];
+}
+
+class OperationsavedEvent extends OperationFilesEvent {
+  final String operationId;
+  const OperationsavedEvent(this.operationId);
+
+  @override
+  List<Object?> get props => [operationId];
+}
+
+class LoadOperationFilesEvent extends OperationFilesEvent {
+  final String? operationId;
+  final AttachmentModel? operation;
+  const LoadOperationFilesEvent({this.operationId, this.operation});
+
+  @override
+  List<Object?> get props => [operationId, operation];
+}
+
+class AddOperationFilesEvent extends OperationFilesEvent {
+  final List<PlatformFile> files;
+  const AddOperationFilesEvent(this.files);
+
+  @override
+  List<Object?> get props => [files];
+}
+
+class UploadOperationFilesEvent extends OperationFilesEvent {
+  final List<PlatformFile>? pickedFiles;
+  final List<XFile>? photos;
+  const UploadOperationFilesEvent({this.pickedFiles, this.photos});
+
+  @override
+  List<Object?> get props => [pickedFiles, photos];
+}
+
+class LinkFilesToCustomerEvent extends OperationFilesEvent {
+  final String customerId;
+
+  const LinkFilesToCustomerEvent({required this.customerId});
+
+  @override
+  List<Object?> get props => [customerId];
+}
+
+class DeleteOperationFilesEvent extends OperationFilesEvent {}
+
+class ToggleOperationFileSelectionEvent extends OperationFilesEvent {
+  final AttachmentModel file;
+  const ToggleOperationFileSelectionEvent(this.file);
+}
+
+class RenameOperationFileEvent extends OperationFilesEvent {
+  final AttachmentModel file;
+  final String newName;
+
+  const RenameOperationFileEvent(this.file, this.newName);
+
+  @override
+  List<Object?> get props => [file, newName];
+}
+
+class DeleteSpecificOperationFileEvent extends OperationFilesEvent {
+  final AttachmentModel file;
+
+  const DeleteSpecificOperationFileEvent(this.file);
+
+  @override
+  List<Object?> get props => [file];
+}
+
+class SelectAllOperationFilesEvent extends OperationFilesEvent {}
+
+class ClearOperationFileSelectionEvent extends OperationFilesEvent {}

lib/features/operations/blocs/operation_files_state.dart

@@ -0,0 +1,52 @@
+part of 'operation_files_bloc.dart';
+
+enum OperationFilesStatus { initial, loading, uploading, success, failure }
+
+class OperationFilesState extends Equatable {
+  const OperationFilesState({
+    this.operationId,
+    required this.status,
+    this.error,
+    this.localFiles = const [],
+    this.remoteFiles = const [],
+    this.selectedFiles = const [],
+  });
+
+  final String? operationId;
+  final OperationFilesStatus status;
+  final String? error;
+  final List<AttachmentModel> localFiles;
+  final List<AttachmentModel> remoteFiles;
+
+  final List<AttachmentModel> selectedFiles;
+
+  @override
+  List<Object?> get props => [
+    operationId,
+    status,
+    error,
+    localFiles,
+    remoteFiles,
+    selectedFiles,
+  ];
+
+  List<AttachmentModel> get allFiles => [...remoteFiles, ...localFiles];
+
+  OperationFilesState copyWith({
+    String? operationId,
+    OperationFilesStatus? status,
+    String? error,
+    List<AttachmentModel>? localFiles,
+    List<AttachmentModel>? remoteFiles,
+    List<AttachmentModel>? selectedFiles,
+  }) {
+    return OperationFilesState(
+      operationId: operationId ?? this.operationId,
+      status: status ?? this.status,
+      error: error,
+      localFiles: localFiles ?? this.localFiles,
+      remoteFiles: remoteFiles ?? this.remoteFiles,
+      selectedFiles: selectedFiles ?? this.selectedFiles,
+    );
+  }
+}

lib/features/operations/blocs/operations_cubit.dart

@@ -0,0 +1,304 @@
+import 'package:equatable/equatable.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_bloc/flutter_bloc.dart';
+import 'package:flux/core/blocs/session/session_cubit.dart';
+import 'package:flux/features/operations/data/operations_repository.dart';
+import 'package:flux/features/operations/models/operation_model.dart';
+import 'package:get_it/get_it.dart';
+import 'package:collection/collection.dart';
+import 'package:uuid/uuid.dart';
+part 'operations_state.dart';
+
+class OperationsCubit extends Cubit<OperationsState> {
+  final OperationsRepository _repository = GetIt.I<OperationsRepository>();
+  final SessionCubit _sessionCubit = GetIt.I<SessionCubit>();
+  final Uuid _uuid = const Uuid(); // Generatore di UUID per il batch
+
+  OperationsCubit()
+    : super(const OperationsState(status: OperationsStatus.initial));
+
+  // --- CARICAMENTO E PAGINAZIONE ---
+
+  Future<void> loadOperations({bool refresh = false}) async {
+    if (state.status == OperationsStatus.loading) return;
+    if (!refresh && state.hasReachedMax) return;
+
+    emit(
+      state.copyWith(
+        status: OperationsStatus.loading,
+        errorMessage: null,
+        allOperations: refresh ? [] : state.allOperations,
+        hasReachedMax: refresh ? false : state.hasReachedMax,
+      ),
+    );
+
+    try {
+      final currentOffset = refresh ? 0 : state.allOperations.length;
+      final companyId = _sessionCubit.state.company?.id;
+
+      if (companyId == null) {
+        throw Exception("Company ID non trovato nella sessione");
+      }
+
+      final newOperations = await _repository.fetchOperations(
+        companyId: companyId,
+        offset: currentOffset,
+        limit: 50,
+        searchTerm: state.query,
+        dateRange: state.dateRange,
+      );
+
+      final bool reachedMax = newOperations.length < 50;
+
+      emit(
+        state.copyWith(
+          status: OperationsStatus.ready,
+          allOperations: refresh
+              ? newOperations
+              : [...state.allOperations, ...newOperations],
+          hasReachedMax: reachedMax,
+        ),
+      );
+    } catch (e) {
+      emit(
+        state.copyWith(
+          status: OperationsStatus.failure,
+          errorMessage: "Errore nel caricamento operazioni: $e",
+        ),
+      );
+    }
+  }
+
+  // --- GESTIONE FILTRI ---
+
+  void updateFilters({String? query, DateTimeRange? range}) {
+    emit(
+      state.copyWith(
+        query: query ?? state.query,
+        dateRange: range ?? state.dateRange,
+      ),
+    );
+    loadOperations(refresh: true);
+  }
+
+  void clearFilters() {
+    emit(state.copyWith(query: '', dateRange: null));
+    loadOperations(refresh: true);
+  }
+
+  void initOperationForm({
+    OperationModel? existingOperation,
+    String? operationId,
+    String? staffId,
+    String? staffDisplayName,
+  }) async {
+    if (existingOperation != null) {
+      emit(
+        state.copyWith(
+          currentOperation: existingOperation,
+          status: OperationsStatus.ready,
+        ),
+      );
+    } else if (operationId != null) {
+      OperationModel? operationModel = state.allOperations.firstWhereOrNull(
+        (s) => s.id == operationId,
+      );
+      operationModel ??= await _repository.fetchOperationById(operationId);
+      emit(
+        state.copyWith(
+          currentOperation: operationModel,
+          status: OperationsStatus.ready,
+        ),
+      );
+    } else {
+      // NUOVA PRATICA: Creiamo un nuovo Batch UUID
+      emit(
+        state.copyWith(
+          currentOperation: OperationModel(
+            storeId: _sessionCubit.state.currentStore?.id ?? '',
+            reference: '',
+            createdAt: DateTime.now(),
+            companyId: _sessionCubit.state.company!.id!,
+            status: OperationStatus.draft,
+            batchUuid: _uuid.v4(), // <-- GENERIAMO IL BATCH UNIVOCO
+          ),
+          status: OperationsStatus.ready,
+        ),
+      );
+    }
+  }
+
+  /// MAGIA PURA: Prepara il form per inserire un altro servizio nella stessa pratica.
+  /// Mantiene il Cliente, il Batch e lo Store, ma svuota il resto.
+  void prepareNextOperationInBatch() {
+    if (state.currentOperation == null) return;
+
+    final current = state.currentOperation!;
+
+    emit(
+      state.copyWith(
+        status: OperationsStatus.ready,
+        currentOperation: OperationModel(
+          companyId: current.companyId,
+          storeId: current.storeId,
+          storeDisplayName: current.storeDisplayName,
+          batchUuid: current.batchUuid, // <-- MANTIENE IL COLLEGAMENTO
+          customerId: current.customerId, // <-- MANTIENE IL CLIENTE
+          customerDisplayName: current.customerDisplayName,
+          status: OperationStatus.draft,
+          createdAt: DateTime.now(),
+        ),
+      ),
+    );
+  }
+
+  // --- PERSISTENZA ---
+
+  Future<void> saveCurrentOperation({
+    required OperationStatus targetStatus,
+    bool shouldPop = true,
+  }) async {
+    if (state.currentOperation == null) return;
+
+    emit(state.copyWith(status: OperationsStatus.saving, errorMessage: null));
+    try {
+      final operationToSave = state.currentOperation!.copyWith(
+        status: targetStatus,
+      );
+
+      final updatedOperation = await _repository.saveFullOperation(
+        operation: operationToSave,
+      );
+
+      emit(
+        state.copyWith(
+          // Se non facciamo Pop (es. l'utente vuole aggiungere un altro servizio), non killiamo l'operazione corrente
+          status: shouldPop
+              ? OperationsStatus.saved
+              : OperationsStatus.savedNoPop,
+          currentOperation: shouldPop ? null : updatedOperation,
+        ),
+      );
+
+      // Ricarica in background per la dashboard
+      loadOperations(refresh: true);
+    } catch (e) {
+      emit(
+        state.copyWith(
+          status: OperationsStatus.failure,
+          errorMessage: e.toString(),
+        ),
+      );
+    }
+  }
+
+  // --- RECUPERO OPERAZIONI DELLO STESSO BATCH (Per UI di riepilogo) ---
+
+  /// Puoi usare questa funzione se nella UI vuoi mostrare "Hai inserito 3 servizi in questa pratica"
+  List<OperationModel> getOperationsInCurrentBatch() {
+    if (state.currentOperation == null) return [];
+    final currentBatch = state.currentOperation!.batchUuid;
+
+    // Filtriamo dalla lista caricata (o potresti fare una query diretta a Supabase se preferisci)
+    return state.allOperations
+        .where(
+          (op) =>
+              op.batchUuid == currentBatch &&
+              op.id != state.currentOperation!.id,
+        )
+        .toList();
+  }
+
+  // --- GESTIONE DELLO STATO DEL FORM IN TEMPO REALE ---
+  void updateOperationFields({
+    String? customerId,
+    String? customerDisplayName,
+    String? type,
+    String? providerId,
+    String? providerDisplayName,
+    String? subtype,
+    String? description,
+    DateTime? expirationDate,
+    int? quantity,
+    String? modelId,
+    String? modelDisplayName,
+    String? staffId,
+    String? staffDisplayName,
+    // Aggiungiamo questi flag per forzare la pulizia dei campi quando cambi tipo
+    bool clearProvider = false,
+    bool clearType = false,
+    bool clearSubtype = false,
+    bool clearDescription = false,
+    bool clearExpiration = false,
+    bool clearQuantity = false,
+    bool clearModel = false,
+  }) {
+    if (state.currentOperation == null) return;
+
+    final current = state.currentOperation!;
+
+    // Creiamo il modello aggiornato
+    // ATTENZIONE: adatta questa logica in base a come è scritto il tuo copyWith!
+    int? newQuantity;
+    if (clearQuantity) {
+      newQuantity = 1;
+    }
+    if (quantity != null && quantity <= 0) {
+      newQuantity = 0;
+    }
+    if (quantity != null && quantity > 0) {
+      newQuantity = quantity;
+    }
+    final updated = current.copyWith(
+      customerId: customerId,
+      customerDisplayName: customerDisplayName,
+
+      // Se clearProvider è true, forziamo una stringa vuota (o null se il tuo modello lo supporta)
+      providerId: clearProvider ? null : (providerId ?? current.providerId),
+      providerDisplayName: clearProvider
+          ? null
+          : (providerDisplayName ?? current.providerDisplayName),
+      quantity: newQuantity,
+      type: clearType ? null : (type ?? current.type),
+      description: clearDescription
+          ? null
+          : (description ?? current.description),
+      subtype: clearSubtype ? null : (subtype ?? current.subtype),
+      expirationDate: clearExpiration
+          ? null
+          : (expirationDate ?? current.expirationDate),
+      modelId: clearModel ? null : (modelId ?? current.modelId),
+      modelDisplayName: clearModel
+          ? null
+          : (modelDisplayName ?? current.modelDisplayName),
+      staffId: staffId ?? current.staffId,
+      staffDisplayName: staffDisplayName ?? current.staffDisplayName,
+    );
+
+    emit(state.copyWith(currentOperation: updated));
+  }
+
+  // Metodo di utilità per calcolare la data X mesi da oggi
+  DateTime _calculateMonths(int months) {
+    final now = DateTime.now();
+    return DateTime(now.year, now.month + months, now.day);
+  }
+
+  // Quando l'utente seleziona un tipo, impostiamo il default
+  void setTypeWithSmartDefault(String type) {
+    DateTime? defaultDate;
+
+    if (type == 'Energy') defaultDate = _calculateMonths(24);
+    if (type == 'Fin') defaultDate = _calculateMonths(30);
+    if (type == 'Entertainment') defaultDate = _calculateMonths(12);
+
+    updateOperationFields(
+      type: type,
+      expirationDate: defaultDate,
+      clearProvider: true,
+      clearSubtype: true,
+      clearModel: true,
+      clearQuantity: true,
+    );
+  }
+}

lib/features/operations/blocs/operations_state.dart

@@ -0,0 +1,68 @@
+part of 'operations_cubit.dart';
+
+enum OperationsStatus {
+  initial,
+  loading,
+  ready,
+  saving,
+  saved,
+  savedNoPop,
+  success,
+  failure,
+}
+
+class OperationsState extends Equatable {
+  final OperationsStatus status;
+  final List<OperationModel> allOperations;
+  final OperationModel? currentOperation; // La bozza che stiamo editando
+  final String? errorMessage;
+  final String query;
+  final DateTimeRange? dateRange;
+  final bool hasReachedMax;
+  final bool isSavingDraft;
+
+  const OperationsState({
+    required this.status,
+    this.allOperations = const [],
+    this.currentOperation,
+    this.errorMessage,
+    this.query = '',
+    this.dateRange,
+    this.hasReachedMax = false,
+    this.isSavingDraft = false,
+  });
+
+  OperationsState copyWith({
+    OperationsStatus? status,
+    List<OperationModel>? allOperations,
+    OperationModel? currentOperation,
+    String? errorMessage,
+    String? query,
+    DateTimeRange? dateRange,
+    bool? hasReachedMax,
+    bool? isSavingDraft,
+  }) {
+    return OperationsState(
+      status: status ?? this.status,
+      allOperations: allOperations ?? this.allOperations,
+      currentOperation: currentOperation ?? this.currentOperation,
+      errorMessage: errorMessage,
+      query: query ?? this.query,
+      dateRange: dateRange ?? this.dateRange,
+      hasReachedMax: hasReachedMax ?? this.hasReachedMax,
+      isSavingDraft: isSavingDraft ?? this.isSavingDraft,
+    );
+  }
+
+  @override
+  List<Object?> get props => [
+    status,
+    allOperations,
+    currentOperation,
+    errorMessage,
+    query,
+    dateRange,
+    hasReachedMax,
+    isSavingDraft,
+  ];
+}