340 lines
13 KiB
Dart
340 lines
13 KiB
Dart
import 'dart:convert';
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import 'dart:io';
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import 'package:flutter/material.dart';
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import 'package:flutter_localizations/flutter_localizations.dart';
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import 'package:flutter_secure_storage/flutter_secure_storage.dart';
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import 'package:opencanteen/lang/lang_cz.dart';
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import 'package:opencanteen/loginmanager.dart';
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import 'package:connectivity_plus/connectivity_plus.dart';
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import 'package:canteenlib/canteenlib.dart';
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import 'package:opencanteen/okna/offline_jidelnicek.dart';
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import 'package:opencanteen/okna/welcome.dart';
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import 'package:opencanteen/util.dart';
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import 'package:path_provider/path_provider.dart';
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import 'lang/lang.dart';
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import 'lang/lang_en.dart';
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import 'okna/jidelnicek.dart';
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/*
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Copyright (C) 2022 Matyáš Caras a přispěvatelé
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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void main() {
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runApp(const MyApp());
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}
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class MyApp extends StatelessWidget {
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const MyApp({Key? key}) : super(key: key);
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// This widget is the root of your application.
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@override
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Widget build(BuildContext context) {
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return MaterialApp(
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debugShowCheckedModeBanner: false,
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localizationsDelegates: const [
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AppLocalizationsDelegate(),
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...GlobalMaterialLocalizations.delegates
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],
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supportedLocales: const [Locale("cs", ""), Locale("en", "")],
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title: "OpenCanteen",
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theme: ThemeData(
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primarySwatch: Colors.purple,
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),
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darkTheme: ThemeData(
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brightness: Brightness.dark,
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primarySwatch: Colors.purple,
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),
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home: const LoginPage(),
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);
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}
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}
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class LoginPage extends StatefulWidget {
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const LoginPage({Key? key}) : super(key: key);
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@override
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State<LoginPage> createState() => _LoginPageState();
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}
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class _LoginPageState extends State<LoginPage> {
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TextEditingController userControl = TextEditingController();
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TextEditingController passControl = TextEditingController();
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TextEditingController canteenControl = TextEditingController();
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bool rememberMe = false;
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@override
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void initState() {
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super.initState();
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LoginManager.getDetails().then((r) async {
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var connectivityResult = await (Connectivity().checkConnectivity());
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if (connectivityResult == ConnectivityResult.none) {
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ScaffoldMessenger.of(context).hideCurrentSnackBar();
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text(Languages.of(context)!.errorContacting),
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),
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);
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goOffline();
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}
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if (r != null) {
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showDialog(
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context: context,
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barrierDismissible: false,
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builder: (_) => Dialog(
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child: SizedBox(
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height: 100,
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child: Row(children: [
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const Padding(
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padding: EdgeInsets.all(10),
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child: CircularProgressIndicator(),
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),
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Text(Languages.of(context)!.loggingIn)
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]),
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),
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));
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var canteen = Canteen(r["url"]!);
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try {
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var l = await canteen.login(r["user"]!, r["pass"]!);
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if (!l) {
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ScaffoldMessenger.of(context).hideCurrentSnackBar();
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text(Languages.of(context)!.loginFailed),
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),
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);
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return;
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}
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const storage = FlutterSecureStorage();
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var odsouhlasil = await storage.read(key: "oc_souhlas");
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if (odsouhlasil == null || odsouhlasil != "ano") {
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Navigator.pushReplacement(
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context,
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MaterialPageRoute(
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builder: (c) => WelcomeScreen(canteen: canteen)));
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} else {
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Navigator.pushReplacement(
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context,
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MaterialPageRoute(
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builder: (context) => JidelnicekPage(
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canteen: canteen,
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)),
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);
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}
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} catch (_) {
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ScaffoldMessenger.of(context).hideCurrentSnackBar();
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text(Languages.of(context)!.errorContacting),
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),
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);
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goOffline();
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}
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}
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});
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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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title: Text(Languages.of(context)!.logIn),
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automaticallyImplyLeading: false,
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),
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body: Center(
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child: SingleChildScrollView(
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child: SizedBox(
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width: MediaQuery.of(context).size.width - 50,
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: <Widget>[
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Text(
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Languages.of(context)!.appName,
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textAlign: TextAlign.center,
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style: const TextStyle(
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fontWeight: FontWeight.bold, fontSize: 40),
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),
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Text(
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Languages.of(context)!.logIn,
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textAlign: TextAlign.center,
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),
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TextField(
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controller: userControl,
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autofillHints: const [AutofillHints.username],
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decoration: InputDecoration(
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labelText: Languages.of(context)!.username),
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),
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TextField(
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autofillHints: const [AutofillHints.password],
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decoration: InputDecoration(
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labelText: Languages.of(context)!.password),
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controller: passControl,
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obscureText: true,
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),
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TextField(
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autofillHints: const [AutofillHints.url],
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decoration: InputDecoration(
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labelText: Languages.of(context)!.iCanteenUrl),
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keyboardType: TextInputType.url,
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controller: canteenControl,
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),
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Row(mainAxisAlignment: MainAxisAlignment.center, children: [
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Switch(
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value: rememberMe,
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onChanged: (value) {
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setState(() {
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rememberMe = value;
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});
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}),
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Text(Languages.of(context)!.rememberMe)
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]),
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TextButton(
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onPressed: () async {
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if (canteenControl.text.contains("http://")) {
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// kontrolujeme šifrované spojení
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var d = await showDialog<bool>(
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context: context,
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builder: (c) => AlertDialog(
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title: Text(Languages.of(context)!.warning),
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content: SingleChildScrollView(
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child: Text(
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Languages.of(context)!.httpLogin)),
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actions: [
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TextButton(
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onPressed: () =>
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Navigator.pop(c, true),
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child:
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Text(Languages.of(context)!.yes)),
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TextButton(
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onPressed: () =>
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Navigator.pop(c, false),
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child: Text(
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Languages.of(context)!.noChange))
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],
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));
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if (!d!) return;
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}
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if (!canteenControl.text.startsWith("https://") &&
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!canteenControl.text.startsWith("http://")) {
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canteenControl.text =
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"https://" + canteenControl.text;
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}
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var canteen = Canteen(canteenControl.text);
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try {
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var l = await canteen.login(
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userControl.text, passControl.text);
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if (!l) {
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ScaffoldMessenger.of(context).hideCurrentSnackBar();
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content:
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Text(Languages.of(context)!.loginFailed),
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),
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);
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return;
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}
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if (rememberMe) {
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LoginManager.setDetails(userControl.text,
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passControl.text, canteenControl.text);
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}
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// souhlas
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const storage = FlutterSecureStorage();
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var odsouhlasil =
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await storage.read(key: "oc_souhlas");
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if (odsouhlasil == null || odsouhlasil != "ano") {
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Navigator.pushReplacement(
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context,
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MaterialPageRoute(
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builder: (c) =>
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WelcomeScreen(canteen: canteen)));
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} else {
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Navigator.pushReplacement(
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context,
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MaterialPageRoute(
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builder: (context) => JidelnicekPage(
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canteen: canteen,
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)),
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);
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}
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} on Exception catch (_) {
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ScaffoldMessenger.of(context).hideCurrentSnackBar();
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content:
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Text(Languages.of(context)!.errorContacting),
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),
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);
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goOffline();
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}
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},
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child: Text(Languages.of(context)!.logIn)),
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],
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),
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),
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),
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));
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}
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void goOffline() async {
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Directory appDocDir = await getApplicationDocumentsDirectory();
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var den = DateTime.now();
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var soubor = File(appDocDir.path +
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"/jidelnicek_${den.year}-${den.month}-${den.day}.json");
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if (soubor.existsSync()) {
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// načteme offline jídelníček
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var input = await soubor.readAsString();
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var r = jsonDecode(input);
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List<OfflineJidlo> jidla = [];
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for (var j in r) {
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jidla.add(OfflineJidlo(
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nazev: j["nazev"],
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varianta: j["varianta"],
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objednano: j["objednano"],
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cena: j["cena"],
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naBurze: j["naBurze"],
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den: DateTime.parse(j["den"])));
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}
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Navigator.pushReplacement(
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context,
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MaterialPageRoute(
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builder: ((context) => OfflineJidelnicek(jidla: jidla))));
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}
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}
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}
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class AppLocalizationsDelegate extends LocalizationsDelegate<Languages> {
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const AppLocalizationsDelegate();
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@override
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bool isSupported(Locale locale) => ['cs', 'en'].contains(locale.languageCode);
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@override
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Future<Languages> load(Locale locale) => _load(locale);
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static Future<Languages> _load(Locale locale) async {
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switch (locale.languageCode) {
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case 'cs':
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return LanguageCz();
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default:
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return LanguageEn();
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}
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}
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@override
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bool shouldReload(LocalizationsDelegate<Languages> old) => false;
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}
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