Enhanced signature step and adjusted note bloc

lib/feature/delivery/detail/bloc/note_bloc.dart

@@ -1,11 +1,14 @@
 import 'dart:async';
+import 'dart:io';
 import 'dart:typed_data';
 
 import 'package:flutter/cupertino.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:hl_lieferservice/widget/operations/bloc/operation_bloc.dart';
 import 'package:hl_lieferservice/widget/operations/bloc/operation_event.dart';
+import 'package:rxdart/rxdart.dart';
 
+import '../../../../model/delivery.dart';
 import 'note_event.dart';
 import 'note_state.dart';
 import 'package:hl_lieferservice/feature/delivery/detail/repository/note_repository.dart';
@@ -15,20 +18,25 @@ class NoteBloc extends Bloc<NoteEvent, NoteState> {
   final OperationBloc opBloc;
   final String deliveryId;
 
-  StreamSubscription? _noteSubscription;
+  StreamSubscription? _combinedSubscription;
-  StreamSubscription? _imageSubscription;
 
-  NoteBloc({required this.repository, required this.opBloc, required this.deliveryId})
+  NoteBloc({
-      : super(NoteInitial()) {
+    required this.repository,
-    repository.loadNotes(deliveryId);
+    required this.opBloc,
-
+    required this.deliveryId,
-    _noteSubscription = repository.notes.listen((notes) {
+  }) : super(NoteInitial()) {
-      add(NotesUpdated(notes: notes));
+    _combinedSubscription = CombineLatestStream.combine2(
-    });
+      repository.notes,
-
+      repository.images,
-    _imageSubscription = repository.images.listen((images) {
+      (note, image) => {"note": note, "image": image},
-      add(ImageUpdated(images: images));
+    ).listen(
-    });
+      (data) => add(
+        DataUpdated(
+          images: data["image"] as List<ImageNote>,
+          notes: data["note"] as List<Note>,
+        ),
+      ),
+    );
 
     on<LoadNote>(_load);
     on<AddNote>(_add);
@@ -37,36 +45,28 @@ class NoteBloc extends Bloc<NoteEvent, NoteState> {
     on<AddImageNote>(_upload);
     on<RemoveImageNote>(_removeImage);
     on<ResetNotes>(_reset);
-    on<NotesUpdated>(_noteUpdated);
+    on<DataUpdated>(_dataUpdated);
-    on<ImageUpdated>(_imageUpdated);
   }
 
   @override
   Future<void> close() {
-    _noteSubscription?.cancel();
+    _combinedSubscription?.cancel();
-    _imageSubscription?.cancel();
 
     return super.close();
   }
 
-  Future<void> _imageUpdated(ImageUpdated event, Emitter<NoteState> emit) async {
+  Future<void> _dataUpdated(DataUpdated event, Emitter<NoteState> emit) async {
-    final currentState = state;
+    emit(NoteLoaded(notes: event.notes, images: event.images));
-
-    if (currentState is NoteLoaded) {
-      emit.call(currentState.copyWith(images: event.images));
-    }
-  }
-
-  Future<void> _noteUpdated(NotesUpdated event, Emitter<NoteState> emit) async {
-    emit(NoteLoaded(notes: event.notes));
   }
 
   Future<void> _reset(ResetNotes event, Emitter<NoteState> emit) async {
     emit.call(NoteInitial());
   }
 
-  Future<void> _removeImage(RemoveImageNote event,
+  Future<void> _removeImage(
-      Emitter<NoteState> emit,) async {
+    RemoveImageNote event,
+    Emitter<NoteState> emit,
+  ) async {
     opBloc.add(LoadOperation());
 
     try {

lib/feature/delivery/detail/bloc/note_event.dart

@@ -66,3 +66,10 @@ class ImageUpdated extends NoteEvent {
 
   ImageUpdated({required this.images});
 }
+
+class DataUpdated extends NoteEvent {
+  final List<ImageNote> images;
+  final List<Note> notes;
+
+  DataUpdated({required this.images, required this.notes});
+}

lib/feature/delivery/detail/presentation/delivery_detail_page.dart

@@ -7,10 +7,13 @@ import 'package:hl_lieferservice/feature/delivery/detail/bloc/note_bloc.dart';
 import 'package:hl_lieferservice/feature/delivery/detail/bloc/note_event.dart';
 import 'package:hl_lieferservice/feature/delivery/detail/presentation/delivery_sign.dart';
 import 'package:hl_lieferservice/feature/delivery/detail/presentation/steps/step.dart';
+import 'package:hl_lieferservice/feature/delivery/detail/repository/note_repository.dart';
+import 'package:hl_lieferservice/feature/delivery/detail/service/notes_service.dart';
 import 'package:hl_lieferservice/feature/delivery/overview/bloc/tour_bloc.dart';
 import 'package:hl_lieferservice/feature/delivery/overview/bloc/tour_event.dart';
 import 'package:hl_lieferservice/feature/delivery/overview/bloc/tour_state.dart';
 import 'package:hl_lieferservice/model/delivery.dart';
+import 'package:hl_lieferservice/widget/operations/bloc/operation_bloc.dart';
 
 class DeliveryDetail extends StatefulWidget {
   final String deliveryId;
@@ -118,9 +121,17 @@ class _DeliveryDetailState extends State<DeliveryDetail> {
   void _openSignatureView(Delivery delivery) {
     Navigator.of(context).push(
       MaterialPageRoute(
-        builder:
+        builder: (context) {
-            (context) =>
+          return BlocProvider(
-                SignatureView(onSigned: _onSign, delivery: delivery),
+            create:
+                (context) => NoteBloc(
+                  repository: NoteRepository(service: NoteService()),
+                  opBloc: context.read<OperationBloc>(),
+                  deliveryId: delivery.id,
+                ),
+            child: SignatureView(onSigned: _onSign, delivery: delivery),
+          );
+        },
       ),
     );
   }
@@ -150,7 +161,8 @@ class _DeliveryDetailState extends State<DeliveryDetail> {
             padding: const EdgeInsets.only(left: 20),
             child: FilledButton(
               onPressed:
-              () => _step == _steps.length - 1
+                  () =>
+                      _step == _steps.length - 1
                           ? _openSignatureView(delivery)
                           : _clickForward,
               child:
@@ -168,11 +180,14 @@ class _DeliveryDetailState extends State<DeliveryDetail> {
   Widget build(BuildContext context) {
     return Scaffold(
       appBar: AppBar(title: const Text("Auslieferungsdetails")),
-      body: BlocBuilder<TourBloc, TourState>(builder: (context, state) {
+      body: BlocBuilder<TourBloc, TourState>(
+        builder: (context, state) {
           final currentState = state;
 
           if (currentState is TourLoaded) {
-          Delivery delivery = currentState.tour.deliveries.firstWhere((delivery) => delivery.id == widget.deliveryId);
+            Delivery delivery = currentState.tour.deliveries.firstWhere(
+              (delivery) => delivery.id == widget.deliveryId,
+            );
             return Column(
               children: [
                 _stepInfo(),
@@ -187,8 +202,9 @@ class _DeliveryDetailState extends State<DeliveryDetail> {
             );
           }
 
-        return const Center(child: CircularProgressIndicator(),);
+          return const Center(child: CircularProgressIndicator());
-      }),
+        },
+      ),
     );
   }
 }

lib/feature/delivery/detail/presentation/delivery_sign.dart

@@ -1,3 +1,4 @@
+import 'dart:io';
 import 'dart:typed_data';
 
 import 'package:flutter_bloc/flutter_bloc.dart';
@@ -71,12 +72,8 @@ class _SignatureViewState extends State<SignatureView> {
       }
     });
 
-    // only load notes if they are not already loaded
-    final noteState = context.read<NoteBloc>().state;
-    if (noteState is NoteInitial) {
     context.read<NoteBloc>().add(LoadNote(delivery: widget.delivery));
   }
-  }
 
   @override
   void dispose() {
@@ -122,7 +119,7 @@ class _SignatureViewState extends State<SignatureView> {
           builder: (context, state) {
             final current = state;
 
-            if (current is NoteLoadedBase) {
+            if (current is NoteLoaded) {
               if (current.notes.isEmpty) {
                 return const SizedBox(
                   width: double.infinity,