180 lines
4.9 KiB
Dart
180 lines
4.9 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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import 'package:fooder/screens/based.dart';
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import 'package:fooder/models/product.dart';
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class AddProductScreen extends BasedScreen {
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const AddProductScreen({super.key, required super.apiClient});
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@override
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State<AddProductScreen> createState() => _AddProductScreen();
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}
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class _AddProductScreen extends State<AddProductScreen> {
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final nameController = TextEditingController();
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final carbController = TextEditingController();
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final fatController = TextEditingController();
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final proteinController = TextEditingController();
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@override
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void dispose() {
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nameController.dispose();
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carbController.dispose();
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fatController.dispose();
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proteinController.dispose();
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super.dispose();
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}
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void popMeDady(Product product) {
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Navigator.pop(
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context,
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product,
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);
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}
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void showError(String message)
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{
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text(message, textAlign: TextAlign.center),
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backgroundColor: Theme.of(context).colorScheme.error,
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),
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);
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}
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Future<void> _addProduct() async {
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try {
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double.parse(carbController.text);
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} catch (e) {
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showError("Carbs must be a number");
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return;
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}
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try {
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double.parse(fatController.text);
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} catch (e) {
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showError("Fat must be a number");
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return;
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}
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try {
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double.parse(proteinController.text);
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} catch (e) {
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showError("Protein must be a number");
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return;
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}
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try {
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var productJson = await widget.apiClient.addProduct(
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carb: double.parse(carbController.text),
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fat: double.parse(fatController.text),
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protein: double.parse(proteinController.text),
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name: nameController.text,
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);
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var product = Product.fromJson(productJson);
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popMeDady(product);
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} catch (e) {
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showError("Error adding product, make sure there is no product with the same name");
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return;
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}
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}
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double calculateCalories() {
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double calories = 0;
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try {
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calories += double.parse(carbController.text) * 4;
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} catch (e) {
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// ignore
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}
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try {
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calories += double.parse(fatController.text) * 9;
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} catch (e) {
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// ignore
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}
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try {
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calories += double.parse(proteinController.text) * 4;
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} catch (e) {
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// ignore
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}
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return calories;
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}
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@override
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Widget build(BuildContext context) {
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return Scaffold(
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appBar: AppBar(
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backgroundColor: Theme.of(context).colorScheme.inversePrimary,
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title: const Text("🅵🅾🅾🅳🅴🆁"),
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),
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body: Center(
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child: Container(
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constraints: const BoxConstraints(maxWidth: 720),
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padding: const EdgeInsets.all(10),
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child: Column(
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children: <Widget>[
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TextFormField(
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decoration: const InputDecoration(
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labelText: 'Product name',
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),
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controller: nameController,
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),
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TextFormField(
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decoration: const InputDecoration(
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labelText: 'Carbs',
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),
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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: carbController,
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onChanged: (String value) {
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setState(() {});
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},
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),
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TextFormField(
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decoration: const InputDecoration(
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labelText: 'Fat',
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),
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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: fatController,
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onChanged: (String value) {
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setState(() {});
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},
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),
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TextFormField(
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decoration: const InputDecoration(
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labelText: 'Protein',
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),
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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: proteinController,
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onChanged: (String value) {
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setState(() {});
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},
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),
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Text(
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"${calculateCalories()} kcal",
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textAlign: TextAlign.right,
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),
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]
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)
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),
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),
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floatingActionButton: FloatingActionButton(
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onPressed: _addProduct,
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child: const Icon(Icons.add),
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),
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);
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}
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}
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