Files
Holzleitner-Lieferservice-App/lib/feature/scan/presentation/scan_screen.dart
2025-11-04 16:52:39 +01:00

406 lines
13 KiB
Dart

import 'dart:async';
import 'package:collection/collection.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_bloc/flutter_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/feature/scan/presentation/scanner.dart';
import 'package:hl_lieferservice/feature/settings/bloc/settings_bloc.dart';
import 'package:hl_lieferservice/feature/settings/bloc/settings_state.dart';
import 'package:hl_lieferservice/model/article.dart';
import 'package:hl_lieferservice/model/car.dart';
import 'package:hl_lieferservice/model/delivery.dart';
import 'package:hl_lieferservice/model/tour.dart';
import 'package:hl_lieferservice/widget/operations/bloc/operation_bloc.dart';
import 'package:hl_lieferservice/widget/operations/bloc/operation_event.dart';
import '../../delivery/overview/bloc/tour_bloc.dart';
class ArticleScanningScreen extends StatefulWidget {
const ArticleScanningScreen({super.key});
@override
State<ArticleScanningScreen> createState() => _ArticleScanningScreenState();
}
class _ArticleScanningScreenState extends State<ArticleScanningScreen> {
final FocusNode _focusNode = FocusNode();
String _buffer = '';
Timer? _bufferTimer;
int _selectedDelivery = 0;
int? _selectedCarId;
@override
void initState() {
super.initState();
// Focus anfordern, um Keyboard-Events zu empfangen
WidgetsBinding.instance.addPostFrameCallback((_) {
_focusNode.requestFocus();
});
final state = context.read<TourBloc>().state;
if (state is TourLoaded) {
setState(() {
_selectedCarId = state.tour.deliveries[_selectedDelivery].carId;
});
}
}
@override
void dispose() {
_focusNode.dispose();
_bufferTimer?.cancel();
super.dispose();
}
void _handleKey(KeyEvent event) {
if (event is KeyDownEvent) {
if (event.logicalKey == LogicalKeyboardKey.enter) {
// Enter = Scan abgeschlossen
_bufferTimer?.cancel();
if (_buffer.isNotEmpty) {
_handleBarcodeScanned(_buffer);
_buffer = '';
}
} else {
// Zeichen zum Buffer hinzufügen
final character = event.character;
if (character != null && character.isNotEmpty) {
_buffer += character;
// Timer zurücksetzen
_bufferTimer?.cancel();
_bufferTimer = Timer(Duration(milliseconds: 1000), () {
// Nach 1 Sekunde ohne neue Eingabe: Buffer verarbeiten
if (_buffer.isNotEmpty) {
_handleBarcodeScanned(_buffer);
_buffer = '';
}
});
}
}
}
}
void _handleBarcodeScanned(String barcode) {
if (_selectedCarId == null) {
context.read<OperationBloc>().add(
FailOperation(message: "Wählen Sie zu erst ein Fahrzeug aus"),
);
return;
}
final state = context.read<TourBloc>().state as TourLoaded;
context.read<TourBloc>().add(
ScanArticleEvent(
articleNumber: barcode,
carId: _selectedCarId!.toString(),
deliveryId: state.tour.deliveries[_selectedDelivery].id,
),
);
}
Widget _carSelection(List<Car> cars, List<Delivery> deliveries) {
return Padding(
padding: const EdgeInsets.all(20),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
"Fahrzeug auswählen",
style: Theme.of(context).textTheme.headlineSmall,
),
Padding(
padding: const EdgeInsets.only(top: 10),
child: SizedBox(
width: double.infinity,
height: 50,
child: ListView(
scrollDirection: Axis.horizontal,
children:
cars.map((car) {
Color? backgroundColor;
Color? iconColor = Theme.of(context).primaryColor;
Color? textColor;
if (_selectedCarId == car.id) {
backgroundColor = Theme.of(context).primaryColor;
textColor = Theme.of(context).colorScheme.onSecondary;
iconColor = Theme.of(context).colorScheme.onSecondary;
}
return Padding(
padding: const EdgeInsets.only(right: 8),
child: GestureDetector(
onTap: () {
context.read<TourBloc>().add(
AssignCarEvent(
deliveryId: deliveries[_selectedDelivery].id,
carId: car.id.toString(),
),
);
setState(() {
_selectedCarId = car.id;
});
},
child: Chip(
backgroundColor: backgroundColor,
label: Row(
children: [
Icon(
Icons.local_shipping,
color: iconColor,
size: 20,
),
Padding(
padding: const EdgeInsets.only(left: 5),
child: Text(
car.plate,
style: TextStyle(
color: textColor,
fontSize: 12,
),
),
),
],
),
),
),
);
}).toList(),
),
),
),
],
),
);
}
Widget _articles(List<Article> articles) {
List<Article> scannableArticles =
articles.where((article) => article.scannable).toList();
return Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Padding(
padding: const EdgeInsets.only(left: 20, bottom: 20),
child: Text(
"Artikel",
style: Theme.of(context).textTheme.headlineSmall,
),
),
scannableArticles.isEmpty
? Center(
child: Text(
'Keine Artikel zum Scannen vorhanden',
style: TextStyle(fontSize: 18),
),
)
: ListView.separated(
shrinkWrap: true,
physics: NeverScrollableScrollPhysics(),
itemCount: scannableArticles.length,
separatorBuilder:
(context, index) => Divider(
height: 0,
color:
Theme.of(context).colorScheme.surfaceContainerHighest,
),
itemBuilder: (context, index) {
final article = scannableArticles[index];
return ListTile(
leading:
article.scannedAmount == article.amount
? Icon(
Icons.check_circle,
color: Colors.green,
size: 32,
)
: Container(
width: 32,
alignment: Alignment.center,
child: Text(
'${article.scannedAmount}/${article.amount}',
style: TextStyle(
fontSize: 16,
fontWeight: FontWeight.bold,
color:
article.scannedAmount > 0
? Colors.blue
: Colors.grey,
),
),
),
title: Text(
article.name,
style: TextStyle(fontWeight: FontWeight.w500),
),
subtitle: Text("Artikelnr. ${article.articleNumber}"),
tileColor:
article.scannedAmount == article.amount
? Colors.green.withValues(alpha: 0.1)
: Theme.of(context).colorScheme.onSecondary,
);
},
),
],
);
}
void _selectDelivery(int? index) {
setState(() {
_selectedDelivery = index!;
});
}
Widget _navigation(List<Delivery> deliveries) {
return Row(
mainAxisAlignment: MainAxisAlignment.spaceEvenly,
children: [
OutlinedButton(
onPressed:
_selectedDelivery > 0
? () => {
if (_selectedDelivery > 0)
{
setState(() {
_selectedDelivery -= 1;
_selectedCarId = deliveries[_selectedDelivery].carId;
}),
},
}
: null,
child: Text("zurück"),
),
Expanded(
child: Padding(
padding: const EdgeInsets.only(left: 20, right: 20),
child: DropdownButton(
menuWidth: MediaQuery.of(context).size.width,
isExpanded: true,
items:
deliveries
.mapIndexed(
(index, delivery) => DropdownMenuItem(
value: index,
child: Text(
delivery.customer.name,
overflow: TextOverflow.ellipsis,
),
),
)
.toList(),
onChanged: _selectDelivery,
value: _selectedDelivery,
),
),
),
OutlinedButton(
onPressed:
_selectedDelivery < deliveries.length - 1
? () => {
if (_selectedDelivery + 1 < deliveries.length)
{
setState(() {
_selectedDelivery += 1;
_selectedCarId = deliveries[_selectedDelivery].carId;
}),
},
}
: null,
child: Text("weiter"),
),
],
);
}
Widget _deliveryStepper(Tour tour) {
final settingsState = context.read<SettingsBloc>().state;
Widget scannerWidget = BarcodeScannerWidget(
onBarcodeDetected: _handleBarcodeScanned,
);
if (settingsState is AppSettingsFailed) {
context.read<OperationBloc>().add(
FailOperation(
message:
"Einstellungen konnten nicht geladen werden. Nutze Kamera-Scanner.",
),
);
}
if (settingsState is AppSettingsLoaded) {
if (settingsState.settings.useHardwareScanner) {
scannerWidget = Container();
}
}
return Padding(
padding: const EdgeInsets.all(0),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
scannerWidget,
_carSelection(tour.driver.cars, tour.deliveries),
_articles(tour.deliveries[_selectedDelivery].articles),
],
),
);
}
@override
Widget build(BuildContext context) {
return BlocBuilder<TourBloc, TourState>(
builder: (context, state) {
if (state is TourLoaded) {
Delivery delivery = state.tour.deliveries[_selectedDelivery];
return Scaffold(
appBar: AppBar(
title: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(
delivery.customer.name,
style: TextStyle(
color: Theme.of(context).colorScheme.onSecondary,
fontWeight: FontWeight.w500,
),
),
Text(
delivery.customer.address.toString(),
style: TextStyle(
fontSize: 14,
fontWeight: FontWeight.normal,
color: Theme.of(context).colorScheme.onSecondary,
),
),
],
),
backgroundColor: Theme.of(context).primaryColor,
),
bottomNavigationBar: Padding(
padding: const EdgeInsets.all(25),
child: _navigation(state.tour.deliveries),
),
body: KeyboardListener(
focusNode: _focusNode,
onKeyEvent: _handleKey,
child: _deliveryStepper(state.tour),
),
);
}
return Container();
},
);
}
}