fooder-app/lib/screens/add_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/diary.dart';
import 'package:fooder/models/meal.dart';
import 'package:fooder/widgets/product.dart';
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import 'package:fooder/components/text.dart';
import 'package:fooder/components/dropdown.dart';
import 'package:fooder/components/floating_action_button.dart';
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import 'package:fooder/screens/add_product.dart';
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import 'package:simple_barcode_scanner/simple_barcode_scanner.dart';
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class AddEntryScreen extends BasedScreen {
final Diary diary;
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const AddEntryScreen(
{super.key, required super.apiClient, required this.diary});
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@override
State<AddEntryScreen> createState() => _AddEntryScreen();
}
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class _AddEntryScreen extends BasedState<AddEntryScreen> {
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final gramsController = TextEditingController();
final productNameController = TextEditingController();
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Meal? meal;
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List<Product> products = [];
@override
void dispose() {
gramsController.dispose();
productNameController.dispose();
super.dispose();
}
void popMeDaddy() {
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Navigator.pop(
context,
);
}
@override
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void initState() {
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super.initState();
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setState(() {
meal = widget.diary.meals[0];
});
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_getProducts().then((value) => null);
}
Future<void> _getProducts() async {
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var productsMap =
await widget.apiClient.getProducts(productNameController.text);
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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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});
}
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@override
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void showError(String message) {
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ScaffoldMessenger.of(context).showSnackBar(
SnackBar(
content: Text(message, textAlign: TextAlign.center),
backgroundColor: Theme.of(context).colorScheme.error,
),
);
}
Future<double?> _parseDouble(String text) async {
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try {
return double.parse(text.replaceAll(",", "."));
} catch (e) {
return null;
}
}
Future<void> _addEntry({bool silent = false}) async {
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if (products.length != 1) {
if (!silent) {
showError("Pick one product");
}
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return;
}
var grams = await _parseDouble(gramsController.text);
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if (grams == null) {
if (!silent) {
showError("Grams must be a number");
}
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return;
}
await widget.apiClient.addEntry(
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grams: grams,
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productId: products[0].id,
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mealId: meal!.id,
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);
popMeDaddy();
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}
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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");
}
}
}
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@override
Widget build(BuildContext context) {
return Scaffold(
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extendBodyBehindAppBar: true,
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appBar: appBar(),
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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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FDropdown<Meal>(
labelText: 'Meal',
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value: meal,
// Callback that sets the selected popup menu item.
onChanged: (Meal? meal) {
if (meal == null) {
return;
}
setState(() {
this.meal = meal;
});
},
items: <DropdownMenuItem<Meal>>[
for (var meal in widget.diary.meals)
DropdownMenuItem<Meal>(
value: meal,
child: Text(meal.name),
),
],
),
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FTextInput(
labelText: 'Product name',
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controller: productNameController,
onChanged: (_) => _getProducts(),
onFieldSubmitted: (_) => _addEntry(),
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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],
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controller: gramsController,
onFieldSubmitted: (_) => _addEntry(),
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),
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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!"),
),
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for (var product in products)
ListTile(
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onTap: () {
setState(() {
products = [product];
productNameController.text = product.name;
});
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_addEntry(silent: true);
},
title: ProductWidget(
product: product,
),
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),
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])),
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),
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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(
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onPressed: _addEntry,
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icon: Icons.library_add,
tag: "fap2",
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),
],
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),
);
}
}