fooder-app/lib/screens/edit_entry.dart

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import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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import 'package:fooder/screens/based.dart';
import 'package:fooder/models/product.dart';
import 'package:fooder/models/entry.dart';
import 'package:fooder/widgets/product.dart';
import 'package:fooder/screens/add_product.dart';
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import 'package:fooder/components/text.dart';
import 'package:fooder/components/floating_action_button.dart';
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import 'package:simple_barcode_scanner/simple_barcode_scanner.dart';
class EditEntryScreen extends BasedScreen {
final Entry entry;
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const EditEntryScreen(
{super.key, required super.apiClient, required this.entry});
@override
State<EditEntryScreen> createState() => _EditEntryScreen();
}
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class _EditEntryScreen extends BasedState<EditEntryScreen> {
final gramsController = TextEditingController();
final productNameController = TextEditingController();
List<Product> products = [];
@override
void dispose() {
gramsController.dispose();
productNameController.dispose();
super.dispose();
}
void popMeDaddy() {
Navigator.pop(context);
}
@override
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void initState() {
super.initState();
setState(() {
gramsController.text = widget.entry.grams.toString();
productNameController.text = widget.entry.product.name;
products = [widget.entry.product];
});
}
Future<void> _getProducts() async {
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var productsMap =
await widget.apiClient.getProducts(productNameController.text);
setState(() {
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products = (productsMap['products'] as List<dynamic>)
.map((e) => Product.fromJson(e as Map<String, dynamic>))
.toList();
});
}
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Future<double?> _parseDouble(String text, String name) async {
try {
return double.parse(text.replaceAll(",", "."));
} catch (e) {
showError("$name must be a number");
return null;
}
}
Future<void> _saveEntry() async {
if (products.length != 1) {
showError("Pick product first");
return;
}
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var grams = await _parseDouble(gramsController.text, "Grams");
if (grams == null) {
return;
}
await widget.apiClient.updateEntry(
widget.entry.id,
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grams: grams,
productId: products[0].id,
mealId: widget.entry.mealId,
);
popMeDaddy();
}
Future<void> _deleteEntry() async {
await widget.apiClient.deleteEntry(widget.entry.id);
popMeDaddy();
}
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Future<void> _findProductByBarCode() async {
var res = await Navigator.push(
context,
MaterialPageRoute(
builder: (context) => const SimpleBarcodeScannerPage(),
),
);
if (res is String) {
try {
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var productMap = await widget.apiClient.getProductByBarcode(res);
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var product = Product.fromJson(productMap);
setState(() {
products = [product];
productNameController.text = product.name;
});
} catch (e) {
showError("Product not found");
}
}
}
@override
Widget build(BuildContext context) {
return Scaffold(
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appBar: appBar(),
body: Center(
child: Container(
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constraints: const BoxConstraints(maxWidth: 720),
padding: const EdgeInsets.all(10),
child: ListView(children: <Widget>[
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FTextInput(
labelText: 'Product name',
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controller: productNameController,
onChanged: (_) => _getProducts(),
autofocus: true,
),
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FTextInput(
labelText: 'Grams',
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keyboardType:
const TextInputType.numberWithOptions(decimal: true),
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inputFormatters: <TextInputFormatter>[
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FilteringTextInputFormatter.allow(
RegExp(r'^(\d+)?[\.,]?\d{0,2}')),
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],
controller: gramsController,
),
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TextButton(
onPressed: () {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => AddProductScreen(
apiClient: widget.apiClient,
),
),
).then((product) {
if (product == null) {
return;
}
setState(() {
products = [product];
productNameController.text = product.name;
});
});
},
child: const Text("Don't see your product? Add it!"),
),
for (var product in products)
ListTile(
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onTap: () {
setState(() {
products = [product];
productNameController.text = product.name;
});
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},
title: ProductWidget(
product: product,
),
),
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])),
),
floatingActionButton: Row(
mainAxisAlignment: MainAxisAlignment.end,
children: <Widget>[
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FActionButton(
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onPressed: _findProductByBarCode,
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icon: Icons.photo_camera,
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),
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const SizedBox(width: 10),
FActionButton(
onPressed: _deleteEntry,
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tag: "fap1",
icon: Icons.delete,
),
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const SizedBox(width: 10),
FActionButton(
onPressed: _saveEntry,
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tag: "fap2",
icon: Icons.save,
),
],
),
);
}
}