Add Auth service and Login Page
This commit is contained in:
@@ -1,16 +1,22 @@
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import 'package:flutter/material.dart';
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import 'package:frontend_splatournament_manager/pages/home_page.dart';
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import 'package:frontend_splatournament_manager/pages/login_page.dart';
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import 'package:frontend_splatournament_manager/pages/settings_page.dart';
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import 'package:frontend_splatournament_manager/providers/auth_provider.dart';
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import 'package:frontend_splatournament_manager/state_provider.dart';
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import 'package:go_router/go_router.dart';
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import 'package:provider/provider.dart';
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void main() {
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runApp(
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ChangeNotifierProvider(
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create: (_) => StateProvider(),
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child: const SplatournamentApp(),
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),);
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MultiProvider(
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providers: [
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ChangeNotifierProvider(create: (_) => StateProvider()),
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ChangeNotifierProvider(create: (_) => AuthProvider()),
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],
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child: const SplatournamentApp(),
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),
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);
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}
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class SplatournamentApp extends StatelessWidget {
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@@ -34,7 +40,9 @@ class SplatournamentApp extends StatelessWidget {
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}
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}
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var routes = GoRouter(
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initialLocation: '/login',
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routes: [
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GoRoute(path: "/login", builder: (context, state) => const LoginPage()),
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GoRoute(path: "/", builder: (context, state) => HomePage(),routes: [
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GoRoute(path: "settings", builder: (context, state) => SettingsPage(),)
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])
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157
frontend_splatournament_manager/lib/pages/login_page.dart
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157
frontend_splatournament_manager/lib/pages/login_page.dart
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@@ -0,0 +1,157 @@
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import 'package:flutter/material.dart';
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import 'package:frontend_splatournament_manager/providers/auth_provider.dart';
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import 'package:go_router/go_router.dart';
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import 'package:provider/provider.dart';
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class LoginPage extends StatefulWidget {
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const LoginPage({super.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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final _usernameController = TextEditingController();
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final _passwordController = TextEditingController();
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final _formKey = GlobalKey<FormState>();
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bool _isRegistering = false;
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@override
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void dispose() {
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_usernameController.dispose();
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_passwordController.dispose();
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super.dispose();
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}
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Future<void> _submit() async {
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if (!_formKey.currentState!.validate()) return;
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final authProvider = context.read<AuthProvider>();
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final username = _usernameController.text.trim();
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final password = _passwordController.text.trim();
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bool success;
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if (_isRegistering) {
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success = await authProvider.register(username, password);
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} else {
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success = await authProvider.login(username, password);
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}
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if (success && mounted) {
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context.go('/');
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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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body: Center(
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child: SingleChildScrollView(
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padding: const EdgeInsets.all(24),
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child: ConstrainedBox(
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constraints: const BoxConstraints(maxWidth: 400),
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child: Form(
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key: _formKey,
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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const SizedBox(height: 16),
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Text(
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'Splatournament Manager',
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textAlign: TextAlign.center,
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style: Theme.of(context).textTheme.headlineSmall,
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),
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const SizedBox(height: 32),
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TextFormField(
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controller: _usernameController,
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decoration: const InputDecoration(
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labelText: 'Username',
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prefixIcon: Icon(Icons.person),
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border: OutlineInputBorder(),
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),
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validator: (value) {
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if (value == null || value.trim().isEmpty) {
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return 'Please enter a username';
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}
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return null;
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},
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),
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const SizedBox(height: 16),
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TextFormField(
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controller: _passwordController,
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obscureText: true,
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decoration: const InputDecoration(
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labelText: 'Password',
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prefixIcon: Icon(Icons.lock),
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border: OutlineInputBorder(),
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),
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validator: (value) {
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if (value == null || value.trim().isEmpty) {
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return 'Please enter a password';
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}
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if (_isRegistering && value.trim().length < 4) {
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return 'Password must be at least 6 characters';
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}
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return null;
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},
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onFieldSubmitted: (_) => _submit(),
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),
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const SizedBox(height: 8),
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Consumer<AuthProvider>(
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builder: (context, auth, _) {
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if (auth.error != null) {
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return Padding(
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padding: const EdgeInsets.only(bottom: 8),
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child: Text(
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auth.error!,
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style: TextStyle(
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color: Theme.of(context).colorScheme.error,
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),
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textAlign: TextAlign.center,
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),
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);
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}
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return const SizedBox.shrink();
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},
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),
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const SizedBox(height: 8),
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Consumer<AuthProvider>(
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builder: (context, auth, _) {
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return FilledButton(
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onPressed: auth.isLoading ? null : _submit,
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child: auth.isLoading
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? const SizedBox(
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height: 20,
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width: 20,
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child: CircularProgressIndicator(strokeWidth: 2),
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)
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: Text(_isRegistering ? 'Register' : 'Login'),
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);
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},
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),
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const SizedBox(height: 12),
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TextButton(
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onPressed: () {
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setState(() {
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_isRegistering = !_isRegistering;
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});
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final authProvider = context.read<AuthProvider>();
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authProvider.clearError();
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},
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child: Text(
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_isRegistering
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? 'Already have an account? Login'
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: 'Don\'t have an account? Register',
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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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),
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),
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);
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}
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}
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@@ -0,0 +1,74 @@
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import 'package:flutter/material.dart';
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import 'package:frontend_splatournament_manager/services/auth_service.dart';
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class AuthProvider extends ChangeNotifier {
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final AuthService _authService = AuthService();
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bool _isLoggedIn = false;
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String? _username;
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int? _userId;
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String? _error;
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bool _isLoading = false;
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bool get isLoggedIn => _isLoggedIn;
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String? get username => _username;
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int? get userId => _userId;
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String? get error => _error;
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bool get isLoading => _isLoading;
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Future<bool> login(String username, String password) async {
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_isLoading = true;
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_error = null;
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notifyListeners();
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try {
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final user = await _authService.login(username, password);
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_isLoggedIn = true;
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_username = user['username'];
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_userId = user['id'];
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_isLoading = false;
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notifyListeners();
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return true;
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} catch (e) {
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_error = e.toString().replaceFirst('Exception: ', '');
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_isLoading = false;
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notifyListeners();
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return false;
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}
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}
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Future<bool> register(String username, String password) async {
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_isLoading = true;
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_error = null;
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notifyListeners();
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try {
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final user = await _authService.register(username, password);
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_isLoggedIn = true;
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_username = user['username'];
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_userId = user['id'];
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_isLoading = false;
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notifyListeners();
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return true;
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} catch (e) {
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_error = e.toString().replaceFirst('Exception: ', '');
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_isLoading = false;
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notifyListeners();
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return false;
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}
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}
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void logout() {
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_isLoggedIn = false;
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_username = null;
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_userId = null;
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_error = null;
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notifyListeners();
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}
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void clearError() {
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_error = null;
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notifyListeners();
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}
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}
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@@ -0,0 +1,37 @@
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import 'dart:convert';
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import 'package:http/http.dart' as http;
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class AuthService {
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static const String baseUrl = "http://10.0.2.2:3000";
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Future<Map<String, dynamic>> register(String username, String password) async {
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final response = await http.post(
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Uri.parse('$baseUrl/register'),
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headers: {'Content-Type': 'application/json'},
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body: json.encode({'username': username, 'password': password}),
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);
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if (response.statusCode == 201) {
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return json.decode(response.body);
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} else {
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final body = json.decode(response.body);
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throw Exception(body['error'] ?? 'Registration failed');
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}
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}
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Future<Map<String, dynamic>> login(String username, String password) async {
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final response = await http.post(
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Uri.parse('$baseUrl/login'),
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headers: {'Content-Type': 'application/json'},
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body: json.encode({'username': username, 'password': password}),
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);
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if (response.statusCode == 200) {
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return json.decode(response.body);
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} else {
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final body = json.decode(response.body);
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throw Exception(body['error'] ?? 'Login failed');
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}
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}
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}
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