140 lines
4.2 KiB
Dart
140 lines
4.2 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import 'package:go_router/go_router.dart';
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import '../../data/sources/localiser/realtime_data_client.dart';
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import '../../providers.dart';
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class LoginScreen extends ConsumerStatefulWidget {
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const LoginScreen({super.key});
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@override
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ConsumerState<LoginScreen> createState() => _LoginScreenState();
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}
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class _LoginScreenState extends ConsumerState<LoginScreen> {
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final _usernameController = TextEditingController();
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final _passwordController = TextEditingController();
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bool _loading = false;
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String? _error;
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@override
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void initState() {
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super.initState();
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_tryAutoLogin();
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}
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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> _tryAutoLogin() async {
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final store = ref.read(credentialStoreProvider);
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final saved = await store.load();
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if (saved == null || !mounted) return;
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_usernameController.text = saved.username;
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_passwordController.text = saved.password;
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await _login(saved.username, saved.password, saveCredentials: false);
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}
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Future<void> _login(String username, String password,
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{bool saveCredentials = true}) async {
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setState(() {
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_loading = true;
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_error = null;
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});
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try {
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final client = ref.read(sessionClientProvider);
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final tokenResponse = await client.login(username, password);
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final token = tokenResponse.token;
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ref.read(authTokenProvider.notifier).state = token;
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final config = ref.read(serverConfigProvider)!;
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final realtime = RealtimeDataClient(config: config, token: token);
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await realtime.connect();
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ref.read(realtimeDataClientProvider.notifier).state = realtime;
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if (saveCredentials) {
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await ref
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.read(credentialStoreProvider)
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.save((username: username, password: password));
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}
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if (mounted) context.go('/floorplan');
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} on Exception catch (e) {
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setState(() => _error = e.toString());
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} finally {
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if (mounted) setState(() => _loading = false);
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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(title: const Text('Sign In')),
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body: Padding(
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padding: const EdgeInsets.all(24),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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TextField(
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controller: _usernameController,
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decoration: const InputDecoration(
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labelText: 'Username',
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border: OutlineInputBorder(),
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),
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textInputAction: TextInputAction.next,
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autofillHints: const [AutofillHints.username],
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),
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const SizedBox(height: 12),
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TextField(
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controller: _passwordController,
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decoration: const InputDecoration(
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labelText: 'Password',
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border: OutlineInputBorder(),
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),
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obscureText: true,
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textInputAction: TextInputAction.done,
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autofillHints: const [AutofillHints.password],
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onSubmitted: _loading
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? null
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: (_) => _login(
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_usernameController.text.trim(),
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_passwordController.text,
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),
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),
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const SizedBox(height: 16),
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if (_error != null)
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Padding(
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padding: const EdgeInsets.only(bottom: 12),
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child: Text(
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_error!,
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style: TextStyle(color: Theme.of(context).colorScheme.error),
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),
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),
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FilledButton(
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onPressed: _loading
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? null
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: () => _login(
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_usernameController.text.trim(),
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_passwordController.text,
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),
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child: _loading
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? const SizedBox.square(
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dimension: 20,
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child: CircularProgressIndicator(strokeWidth: 2),
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)
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: const Text('Sign in'),
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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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