Encrypted messaging app
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import 'package:flutter/material.dart';
import 'package:shared_preferences/shared_preferences.dart';
import 'package:http/http.dart' as http;
import 'package:flutter_dotenv/flutter_dotenv.dart';
import '/views/main/conversation_list.dart';
import '/views/main/friend_list.dart';
import '/views/main/profile.dart';
import '/utils/storage/friends.dart';
import '/utils/storage/conversations.dart';
import '/utils/storage/messages.dart';
import '/utils/storage/session_cookie.dart';
import '/models/conversations.dart';
import '/models/friends.dart';
import '/models/my_profile.dart';
class Home extends StatefulWidget {
const Home({Key? key}) : super(key: key);
@override
State<Home> createState() => _HomeState();
}
class _HomeState extends State<Home> {
List<Conversation> conversations = [];
List<Friend> friends = [];
bool isLoading = true;
int _selectedIndex = 0;
List<Widget> _widgetOptions = <Widget>[
const ConversationList(conversations: []),
const FriendList(friends: []),
const Profile(),
];
@override
void initState() {
updateData();
super.initState();
}
void updateData() async {
if (!await checkLogin()) {
return;
}
await updateFriends();
await updateConversations();
await updateMessageThreads();
conversations = await getConversations();
friends = await getFriends();
setState(() {
_widgetOptions = <Widget>[
ConversationList(conversations: conversations),
FriendList(friends: friends),
const Profile(),
];
isLoading = false;
});
}
Future<bool> checkLogin() async {
bool isLoggedIn = false;
try {
isLoggedIn = await MyProfile.isLoggedIn();
} catch (Exception) {
Navigator.pushNamedAndRemoveUntil(context, '/landing', ModalRoute.withName('/landing'));
return false;
}
if (!isLoggedIn) {
await MyProfile.logout();
Navigator.pushNamedAndRemoveUntil(context, '/landing', ModalRoute.withName('/landing'));
return false;
}
int statusCode = 200;
try {
var resp = await http.get(
Uri.parse('${dotenv.env["SERVER_URL"]}api/v1/auth/check'),
headers: {
'cookie': await getSessionCookie(),
}
);
statusCode = resp.statusCode;
} catch(SocketException) {
if (await MyProfile.isLoggedIn()) {
return true;
}
}
if (isLoggedIn && statusCode == 200) {
return true;
}
MyProfile.logout();
Navigator.pushNamedAndRemoveUntil(context, '/landing', ModalRoute.withName('/landing'));
return false;
}
void _onItemTapped(int index) {
setState(() {
_selectedIndex = index;
});
}
Widget loading() {
return Stack(
children: <Widget>[
const Opacity(
opacity: 0.1,
child: ModalBarrier(dismissible: false, color: Colors.black),
),
Center(
child: Column(
mainAxisSize: MainAxisSize.max,
mainAxisAlignment: MainAxisAlignment.center,
children: const <Widget> [
CircularProgressIndicator(),
SizedBox(height: 25),
Text("Loading..."),
],
)
),
]
);
}
@override
Widget build(BuildContext context) {
return WillPopScope(
onWillPop: () async => false,
child: isLoading ? loading() : Scaffold(
body: _widgetOptions.elementAt(_selectedIndex),
bottomNavigationBar: isLoading ? const SizedBox.shrink() : BottomNavigationBar(
currentIndex: _selectedIndex,
onTap: _onItemTapped,
selectedItemColor: Theme.of(context).primaryColor,
unselectedItemColor: Theme.of(context).hintColor,
selectedLabelStyle: const TextStyle(fontWeight: FontWeight.w600),
unselectedLabelStyle: const TextStyle(fontWeight: FontWeight.w600),
type: BottomNavigationBarType.fixed,
items: const [
BottomNavigationBarItem(
icon: Icon(Icons.message),
label: "Chats",
),
BottomNavigationBarItem(
icon: Icon(Icons.group_work),
label: "Friends",
),
BottomNavigationBarItem(
icon: Icon(Icons.account_box),
label: "Profile",
),
],
),
),
);
}
}