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import 'package:flutter/material.dart';
import 'dart:io';
import 'package:http/http.dart' as http;
void main() {
runApp(const MyApp());
}
class MyApp extends StatelessWidget {
const MyApp({super.key});
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Demo',
theme: ThemeData(
brightness: Brightness.dark,
primaryColor: Colors.white,
),
home: const MyHomePage(title: 'Flutter Demo Home Page'),
);
}
}
class MyHomePage extends StatefulWidget {
const MyHomePage({super.key, required this.title});
final String title;
@override
State<MyHomePage> createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
final TextEditingController _todoController = TextEditingController();
final TextEditingController _usernameController = TextEditingController();
final List<String> _values = <String>['first todo', 'second work'];
final List<bool> _dones = <bool>[true, false];
var _username = "test";
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text("Text App"),
backgroundColor: Color(0xff2d3f76),
),
body: Center(
child: Container(
padding: EdgeInsets.all(16.0),
child: Column(children: _showTodos()))),
floatingActionButton: FloatingActionButton(
onPressed: () {
setState(() {
if (_todoController.text.isNotEmpty) {
_values.add(_todoController.text);
_dones.add(false);
_todoController.clear();
}
});
},
tooltip: 'Add Todo',
child: const Icon(Icons.add),
),
bottomNavigationBar: BottomNavigationBar(
items: [
BottomNavigationBarItem(
icon: IconButton(
onPressed: () => _showDialog(), icon: Icon(Icons.login)),
label: "Login"),
BottomNavigationBarItem(
icon: IconButton(
onPressed: () => _saveTodos(), icon: Icon(Icons.save)),
label: "Save"),
],
backgroundColor: Color(0xff222436),
));
}
List<Widget> _showTodos() {
List<Widget> todos = [];
for (int i = 0; i < _values.length; i++) {
String context = _values[i];
todos.add(Row(children: <Widget>[
Checkbox(
value: _dones[i],
onChanged: (bool? value) {
setState(() {
_dones[i] = value!;
});
}),
SizedBox(width: 10),
Text(context),
Spacer(),
IconButton(
onPressed: () {
setState(() {
int i = _values.indexOf(context);
_values.remove(context);
_dones.removeAt(i);
});
},
icon: Icon(
Icons.delete,
color: Colors.red,
),
),
]));
}
if (_values.isEmpty) {
todos.add(Text('Nothing here'));
}
todos.add(SizedBox(height: 10));
todos.add(TextField(
controller: _todoController,
decoration: const InputDecoration(
border: OutlineInputBorder(),
labelText: 'Insert Todo',
),
));
return todos;
}
Future<void> _showDialog() async {
return showDialog<void>(
context: context,
builder: (BuildContext context) {
return AlertDialog(
title: const Text('Login'),
content: TextField(
controller: _usernameController,
decoration: const InputDecoration(hintText: 'Username'),
autofocus: true,
),
actions: <Widget>[
OutlinedButton(
style: OutlinedButton.styleFrom(
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(12),
),
),
onPressed: () {
Navigator.of(context).pop();
},
child: const Text('Cancel'),
),
ElevatedButton(
style: ElevatedButton.styleFrom(
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(12),
),
),
onPressed: () {
Navigator.of(context).pop();
_username = _usernameController.text;
_values.clear();
_dones.clear();
_loadTodos();
_usernameController.clear();
},
child: const Text('Login'),
),
],
);
});
}
void _loadTodos() async {
String uri = "http://127.0.0.1:6969/$_username.txt";
try {
http.Response response = await http.get(Uri.parse(uri));
if (response.statusCode == 200) {
print("Successfully got the data");
} else {
print('Error getting data: ${response.statusCode}');
return;
}
setState(() {
todoDecode(response.body, _values, _dones);
});
print(_values);
print(_dones);
} on SocketException catch (e) {
print(e.message);
}
}
void _saveTodos() async {
String uri = "http://127.0.0.1:6969/$_username.txt";
var data = todoEncode(_values, _dones);
print(data);
try {
http.Response response = await http.post(Uri.parse(uri), body: data);
if (response.statusCode == 200) {
print('Data sent successfully');
} else {
print('Error sending data: ${response.statusCode}');
}
} catch (e) {
print(e.toString());
}
}
}
String todoEncode(List<String> values, List<bool> dones) {
String data = "";
for (int i = 0; i < values.length; i++) {
data += '${dones[i] ? 1 : 0}:${values[i]}\n';
}
return data;
}
void todoDecode(String todos, List<String> values, List<bool> dones) {
var tmp = todos.split('\n');
for (int i = 0; i < tmp.length - 1; i++) {
values.add(tmp[i].substring(2));
dones.add(tmp[i][0] == '0' ? false : true);
}
}
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