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import 'package:flutter/material.dart';
import 'package:linkchat/firebase/database.dart';
import 'package:linkchat/models/group.dart';
import 'package:linkchat/widgets/cached_avatar.dart';
import '../firebase/auth.dart';
import '../models/user.dart';
class NewChatScreen extends StatefulWidget {
const NewChatScreen({super.key});
@override
State<NewChatScreen> createState() => _NewChatScreenState();
}
class _NewChatScreenState extends State<NewChatScreen> {
final Auth _auth = Auth();
final Database _db = Database();
final TextEditingController _controller = TextEditingController();
final ValueNotifier<List<FsUser>> _usersNotifier =
ValueNotifier<List<FsUser>>([]);
final ValueNotifier<List<FsUser>> _filteredUsersNotifier =
ValueNotifier<List<FsUser>>([]);
@override
void initState() {
super.initState();
_db.getAllUsers().first.then((u) {
_usersNotifier.value = u;
_filteredUsersNotifier.value = u;
});
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: const Text('Nuevo chat'),
leading: IconButton(
icon: const Icon(Icons.arrow_back),
onPressed: () {
Navigator.of(context).pop();
},
),
),
body: Column(
children: [
Padding(
padding: const EdgeInsets.all(8.0),
child: TextField(
controller: _controller,
decoration: const InputDecoration(
border: OutlineInputBorder(),
labelText: 'Nombre del contacto',
),
onChanged: (value) {
if (value.isNotEmpty) {
_filteredUsersNotifier.value = _usersNotifier.value
.where((user) => user.displayName.contains(value))
.toList();
} else {
_filteredUsersNotifier.value = _usersNotifier.value;
}
},
),
),
Expanded(
child: ValueListenableBuilder(
valueListenable: _filteredUsersNotifier,
builder: (context, value, child) => ListView.builder(
itemCount: value.length,
itemBuilder: (context, index) {
FsUser user = value[index];
return ListTile(
leading: CachedAvatar(user.photoUrl),
title: Text(user.displayName),
trailing: IconButton(
icon: const Icon(Icons.send),
onPressed: () {
_db
.saveGroup(Group(
createdBy: _auth.currentUser!.uid,
createdAt: DateTime.now(),
members: [
_auth.currentUser!.uid,
user.uid,
],
))
.whenComplete(() {
Navigator.of(context).pop();
});
},
),
);
},
),
),
),
],
),
);
}
}
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