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opencanteen/lib/okna/jidelnicek.dart
2022-05-02 12:10:06 +02:00

348 lines
13 KiB
Dart

import 'dart:convert';
import 'dart:io';
import 'package:canteenlib/canteenlib.dart';
import 'package:flutter/material.dart';
import 'package:flutter_secure_storage/flutter_secure_storage.dart';
import 'package:opencanteen/util.dart';
import 'package:path_provider/path_provider.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:url_launcher/url_launcher.dart';
import '../main.dart';
import 'about.dart';
class JidelnicekPage extends StatefulWidget {
const JidelnicekPage({Key? key, required this.canteen, required this.user})
: super(key: key);
final Canteen canteen;
final String user;
@override
State<JidelnicekPage> createState() => _JidelnicekPageState();
}
class _JidelnicekPageState extends State<JidelnicekPage> {
List<Widget> obsah = [const Text("Načítám...")];
DateTime den = DateTime.now();
String denTydne = "";
double kredit = 0.0;
Future<void> nactiJidlo() async {
obsah = [const CircularProgressIndicator()];
switch (den.weekday) {
case 2:
denTydne = "Úterý";
break;
case 3:
denTydne = "Středa";
break;
case 4:
denTydne = "Čtvrtek";
break;
case 5:
denTydne = "Pátek";
break;
case 6:
denTydne = "Sobota";
break;
case 7:
denTydne = "Neděle";
break;
default:
denTydne = "Pondělí";
}
widget.canteen.ziskejUzivatele().then((kr) {
kredit = kr.kredit;
widget.canteen.jidelnicekDen(den: den).then((jd) async {
setState(() {
obsah = [];
if (jd.jidla.isEmpty) {
obsah.add(const Text(
"Žádné jídlo pro tento den",
style: TextStyle(fontSize: 15),
));
} else {
for (var j in jd.jidla) {
obsah.add(
Padding(
padding: const EdgeInsets.only(top: 15),
child: InkWell(
child: Row(
mainAxisAlignment: MainAxisAlignment.spaceBetween,
children: [
Text(j.varianta),
const SizedBox(width: 10),
Flexible(
child: Text(
j.nazev,
),
),
Text((j.naBurze) ? "V BURZE" : "${j.cena}"),
Checkbox(
value: j.objednano,
fillColor: (j.lzeObjednat)
? MaterialStateProperty.all(Colors.blue)
: MaterialStateProperty.all(Colors.grey),
onChanged: (v) async {
return;
})
],
),
onTap: () async {
if (!j.lzeObjednat) return;
showDialog(
context: context,
barrierDismissible: false,
builder: (_) => Dialog(
child: SizedBox(
height: 100,
child: Row(children: const [
Padding(
padding: EdgeInsets.all(10),
child: CircularProgressIndicator(),
),
Text("Objednávám...")
]),
),
));
widget.canteen.objednat(j).then((_) {
Navigator.of(context, rootNavigator: true).pop();
nactiJidlo();
}).catchError((o) {
Navigator.of(context, rootNavigator: true).pop();
showDialog(
context: context,
builder: (bc) => AlertDialog(
title: const Text(
"Jídlo se nepodařilo objednat."),
content: Text(o.toString()),
actions: [
TextButton(
child: const Text("Zavřít"),
onPressed: () {
Navigator.pop(bc);
},
)
],
));
});
},
onLongPress: () async {
if (!j.objednano || j.burzaUrl == null) return;
if (!j.naBurze) {
// pokud není na burze, radši se zeptáme
var d = await showDialog(
context: context,
builder: (bc) => SimpleDialog(
title: const Text(
"Opravdu chcete vložit jídlo na burzu?"),
children: [
SimpleDialogOption(
onPressed: () {
Navigator.pop(bc, true);
},
child: const Text("Ano"),
),
SimpleDialogOption(
onPressed: () {
Navigator.pop(bc, false);
},
child: const Text("Ne"),
),
],
));
if (d) {
widget.canteen
.doBurzy(j)
.then((_) => nactiJidlo())
.catchError((o) {
showDialog(
context: context,
builder: (bc) => AlertDialog(
title: const Text(
"Nepodařilo se vložit jídlo na burzu"),
content: Text(o.toString()),
actions: [
TextButton(
child: const Text("Zavřít"),
onPressed: () {
Navigator.pop(bc);
},
)
],
));
});
}
} else {
// jinak ne
widget.canteen.doBurzy(j).then((_) => nactiJidlo());
}
},
),
),
);
}
}
});
});
}).catchError((o) {
if (!widget.canteen.prihlasen) {
Navigator.pushReplacement(
context, MaterialPageRoute(builder: (c) => const LoginPage()));
}
});
}
void kliknuti(String value) {
switch (value) {
case 'Odhlásit se':
const storage = FlutterSecureStorage();
storage.deleteAll();
Navigator.pushReplacement(
context, MaterialPageRoute(builder: (c) => const LoginPage()));
break;
case 'Nahlásit chybu':
launch("https://github.com/hernikplays/opencanteen/issues/new/choose");
break;
case 'O Aplikaci':
Navigator.push(
context, MaterialPageRoute(builder: (c) => const AboutPage()));
break;
}
}
/// uložení jídelníčku pro dnešek offline
void ulozitDnesekOffline() async {
var prefs = await SharedPreferences.getInstance();
if (prefs.getBool("offline") != null && prefs.getBool("offline")!) {
Directory appDocDir = await getApplicationDocumentsDirectory();
for (var f in appDocDir.listSync()) {
// Vymažeme obsah
if (f.path.contains("jidelnicek")) {
f.deleteSync();
}
}
// Uložíme nová data
var j = await widget.canteen.jidelnicekDen();
var soubor = File(appDocDir.path +
"/jidelnicek_${den.year}-${den.month}-${den.day}.json");
soubor.createSync();
var jidla = [];
for (var jidlo in j.jidla) {
jidla.add({
"nazev": jidlo.nazev,
"varianta": jidlo.varianta,
"objednano": jidlo.objednano,
"cena": jidlo.cena,
"naBurze": jidlo.naBurze
});
}
await soubor.writeAsString(json.encode(jidla));
}
}
@override
void initState() {
super.initState();
ulozitDnesekOffline();
nactiJidlo();
}
@override
Widget build(BuildContext context) {
return Scaffold(
drawer: drawerGenerator(context, widget.canteen, widget.user, 1),
appBar: AppBar(
title: const Text('Jídelníček'),
actions: [
PopupMenuButton(
onSelected: kliknuti,
itemBuilder: (BuildContext context) {
return {'Nahlásit chybu', 'O Aplikaci', 'Odhlásit se'}
.map((String choice) {
return PopupMenuItem<String>(
value: choice,
child: Text(choice),
);
}).toList();
},
),
],
),
body: RefreshIndicator(
child: Center(
child: SizedBox(
child: Column(
children: [
const SizedBox(height: 10),
Text("Kredit: $kredit"),
Row(mainAxisAlignment: MainAxisAlignment.center, children: [
IconButton(
onPressed: () {
setState(() {
den = den.subtract(const Duration(days: 1));
nactiJidlo();
});
},
icon: const Icon(Icons.arrow_left)),
TextButton(
onPressed: () async {
var datePicked = await showDatePicker(
context: context,
initialDate: den,
currentDate: den,
firstDate: DateTime(2019, 1, 1),
lastDate: DateTime(den.year + 1, 12, 31),
locale: const Locale("cs"));
if (datePicked == null) return;
setState(() {
den = datePicked;
nactiJidlo();
});
},
child: Text(
"${den.day}. ${den.month}. ${den.year} - $denTydne")),
IconButton(
onPressed: () {
setState(() {
den = den.add(const Duration(days: 1));
nactiJidlo();
});
},
icon: const Icon(Icons.arrow_right)),
]),
SingleChildScrollView(
physics: const AlwaysScrollableScrollPhysics(),
child: GestureDetector(
child: Container(
color: Theme.of(context)
.colorScheme
.onPrimary
.withOpacity(0),
child: Column(children: obsah),
height: MediaQuery.of(context).size.height / 1.3,
),
onHorizontalDragEnd: (details) {
if (details.primaryVelocity?.compareTo(0) == -1) {
setState(() {
den = den.add(const Duration(days: 1));
nactiJidlo();
});
} else {
setState(() {
den = den.subtract(const Duration(days: 1));
nactiJidlo();
});
}
},
),
)
],
),
width: MediaQuery.of(context).size.width - 50,
),
),
onRefresh: nactiJidlo,
),
);
}
}