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opencanteen/lib/okna/burza.dart

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import 'package:canteenlib/canteenlib.dart';
import 'package:flutter/material.dart';
import 'package:opencanteen/util.dart';
import '../main.dart';
class BurzaPage extends StatefulWidget {
const BurzaPage({Key? key, required this.canteen, required this.user})
: super(key: key);
final Canteen canteen;
final String user;
@override
State<BurzaPage> createState() => _BurzaPageState();
}
class _BurzaPageState extends State<BurzaPage> {
List<Widget> obsah = [];
double kredit = 0.0;
Future<void> nactiBurzu() async {
obsah = [const CircularProgressIndicator()];
widget.canteen.ziskejUzivatele().then((kr) {
kredit = kr.kredit;
widget.canteen.ziskatBurzu().then((burza) {
setState(() {
obsah = [];
if (burza.isEmpty) {
obsah = [
const Text(
"Žádné jídlo v burze.",
style: TextStyle(fontSize: 20),
),
const Text("Potáhněte zvrchu pro načtení.")
];
} else {
for (var b in burza) {
obsah.add(
Padding(
padding: const EdgeInsets.only(top: 15),
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text("${b.den.day}. ${b.den.month}."),
const SizedBox(width: 10),
Flexible(
child: Text(
b.nazev,
),
),
Text("${b.pocet}x"),
TextButton(
onPressed: () {
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widget.canteen.objednatZBurzy(b).then((a) {
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if (a) {
showDialog(
context: context,
builder: (context) => AlertDialog(
title: const Text("Objednáno"),
content: const Text(
"Jídlo bylo úspěšně objednáno."),
actions: [
TextButton(
child: const Text("OK"),
onPressed: () =>
Navigator.of(context).pop(),
)
],
),
);
} else {
showDialog(
context: context,
builder: (context) => AlertDialog(
title: const Text("Nelze objednat"),
content: const Text(
"Jídlo se nepodařilo objednat."),
actions: [
TextButton(
child: const Text("OK"),
onPressed: () =>
Navigator.of(context).pop(),
)
],
),
);
}
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nactiBurzu();
});
},
child: const Text("Objednat")),
],
),
),
);
}
}
});
});
}).catchError((o) {
if (!widget.canteen.prihlasen) {
Navigator.pushReplacement(
context, MaterialPageRoute(builder: (c) => const LoginPage()));
}
});
}
@override
void initState() {
super.initState();
nactiBurzu();
}
@override
Widget build(BuildContext context) {
return Scaffold(
drawer: drawerGenerator(context, widget.canteen, widget.user, 3),
appBar: AppBar(
title: const Text('Burza'),
),
body: RefreshIndicator(
child: Center(
child: Column(
children: [
const SizedBox(height: 10),
Text("Kredit: $kredit"),
const SizedBox(height: 10),
SingleChildScrollView(
physics: const AlwaysScrollableScrollPhysics(),
child: SizedBox(
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height: MediaQuery.of(context).size.height / 1.3,
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child: Column(children: obsah),
),
)
],
),
),
onRefresh: () => nactiBurzu()),
);
}
}