fill
This commit is contained in:
150
lib/features/auth/presentation/pages/login_page.dart
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150
lib/features/auth/presentation/pages/login_page.dart
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@@ -0,0 +1,150 @@
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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 '../../di/auth_dependency_injection.dart';
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import '../widgets/login_form.dart';
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/// Login page for user authentication
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///
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/// Displays login form and handles authentication flow
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class LoginPage extends ConsumerStatefulWidget {
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const LoginPage({super.key});
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@override
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ConsumerState<LoginPage> createState() => _LoginPageState();
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}
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class _LoginPageState extends ConsumerState<LoginPage> {
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@override
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void initState() {
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super.initState();
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// Check authentication status on page load
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WidgetsBinding.instance.addPostFrameCallback((_) {
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_checkAuthStatus();
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});
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}
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/// Check if user is already authenticated
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Future<void> _checkAuthStatus() async {
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ref.read(authProvider.notifier).checkAuthStatus();
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}
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/// Handle login button press
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void _handleLogin(String username, String password) {
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ref.read(authProvider.notifier).login(username, password);
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}
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@override
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Widget build(BuildContext context) {
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final theme = Theme.of(context);
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final authState = ref.watch(authProvider);
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final isLoading = authState.isLoading;
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final error = authState.error;
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// Listen for authentication state changes
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ref.listen(authProvider, (previous, next) {
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if (next.isAuthenticated) {
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// Navigate to warehouses page on successful login
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context.go('/warehouses');
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}
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});
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return Scaffold(
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body: SafeArea(
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child: Center(
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child: SingleChildScrollView(
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padding: const EdgeInsets.all(24.0),
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child: ConstrainedBox(
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constraints: const BoxConstraints(maxWidth: 400),
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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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// App logo/icon
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Icon(
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Icons.warehouse_outlined,
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size: 80,
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color: theme.colorScheme.primary,
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),
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const SizedBox(height: 24),
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// App title
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Text(
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'Warehouse Manager',
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style: theme.textTheme.headlineMedium?.copyWith(
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fontWeight: FontWeight.bold,
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color: theme.colorScheme.onSurface,
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),
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textAlign: TextAlign.center,
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),
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const SizedBox(height: 8),
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// Subtitle
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Text(
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'Login to continue',
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style: theme.textTheme.bodyLarge?.copyWith(
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color: theme.colorScheme.onSurface.withOpacity(0.6),
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),
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textAlign: TextAlign.center,
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),
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const SizedBox(height: 48),
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// Error message (show before form)
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if (error != null)
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Container(
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padding: const EdgeInsets.all(12),
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decoration: BoxDecoration(
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color: theme.colorScheme.errorContainer,
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borderRadius: BorderRadius.circular(8),
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),
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child: Row(
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children: [
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Icon(
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Icons.error_outline,
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color: theme.colorScheme.error,
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size: 20,
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),
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const SizedBox(width: 8),
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Expanded(
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child: Text(
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error,
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style: theme.textTheme.bodyMedium?.copyWith(
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color: theme.colorScheme.error,
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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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if (error != null) const SizedBox(height: 16),
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// Login form (includes button)
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LoginForm(
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onSubmit: _handleLogin,
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isLoading: isLoading,
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),
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const SizedBox(height: 24),
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// Additional info or version
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Text(
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'Version 1.0.0',
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style: theme.textTheme.bodySmall?.copyWith(
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color: theme.colorScheme.onSurface.withOpacity(0.4),
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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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),
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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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12
lib/features/auth/presentation/presentation.dart
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12
lib/features/auth/presentation/presentation.dart
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@@ -0,0 +1,12 @@
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/// Barrel file for auth presentation layer exports
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///
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/// Provides clean imports for presentation layer components
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// Pages
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export 'pages/login_page.dart';
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// Providers
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export 'providers/auth_provider.dart';
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// Widgets
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export 'widgets/login_form.dart';
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190
lib/features/auth/presentation/providers/auth_provider.dart
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190
lib/features/auth/presentation/providers/auth_provider.dart
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@@ -0,0 +1,190 @@
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import 'package:equatable/equatable.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import '../../data/models/login_request_model.dart';
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import '../../domain/entities/user_entity.dart';
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import '../../domain/usecases/login_usecase.dart';
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/// Authentication state
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///
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/// Represents the current authentication status and user data
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class AuthState extends Equatable {
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/// Current authenticated user (null if not authenticated)
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final UserEntity? user;
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/// Whether user is authenticated
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final bool isAuthenticated;
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/// Whether an authentication operation is in progress
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final bool isLoading;
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/// Error message if authentication fails
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final String? error;
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const AuthState({
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this.user,
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this.isAuthenticated = false,
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this.isLoading = false,
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this.error,
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});
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/// Initial state (not authenticated, not loading)
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const AuthState.initial()
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: user = null,
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isAuthenticated = false,
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isLoading = false,
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error = null;
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/// Loading state
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const AuthState.loading()
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: user = null,
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isAuthenticated = false,
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isLoading = true,
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error = null;
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/// Authenticated state with user data
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const AuthState.authenticated(UserEntity user)
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: user = user,
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isAuthenticated = true,
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isLoading = false,
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error = null;
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/// Error state
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const AuthState.error(String message)
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: user = null,
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isAuthenticated = false,
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isLoading = false,
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error = message;
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/// Create a copy with modified fields
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AuthState copyWith({
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UserEntity? user,
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bool? isAuthenticated,
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bool? isLoading,
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String? error,
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}) {
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return AuthState(
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user: user ?? this.user,
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isAuthenticated: isAuthenticated ?? this.isAuthenticated,
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isLoading: isLoading ?? this.isLoading,
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error: error,
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);
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}
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@override
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List<Object?> get props => [user, isAuthenticated, isLoading, error];
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@override
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String toString() {
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return 'AuthState(isAuthenticated: $isAuthenticated, isLoading: $isLoading, error: $error, user: $user)';
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}
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}
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/// Auth state notifier that manages authentication state
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///
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/// Handles login, logout, and authentication status checks
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class AuthNotifier extends StateNotifier<AuthState> {
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final LoginUseCase loginUseCase;
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final LogoutUseCase logoutUseCase;
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final CheckAuthStatusUseCase checkAuthStatusUseCase;
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final GetCurrentUserUseCase getCurrentUserUseCase;
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AuthNotifier({
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required this.loginUseCase,
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required this.logoutUseCase,
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required this.checkAuthStatusUseCase,
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required this.getCurrentUserUseCase,
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}) : super(const AuthState.initial());
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/// Login with username and password
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///
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/// Updates state to loading, then either authenticated or error
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Future<void> login(String username, String password) async {
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// Set loading state
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state = const AuthState.loading();
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// Create login request
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final request = LoginRequestModel(
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username: username,
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password: password,
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);
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// Call login use case
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final result = await loginUseCase(request);
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// Handle result
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result.fold(
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(failure) {
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// Login failed - set error state
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state = AuthState.error(failure.message);
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},
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(user) {
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// Login successful - set authenticated state
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state = AuthState.authenticated(user);
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},
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);
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}
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/// Logout current user
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///
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/// Clears authentication data and returns to initial state
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Future<void> logout() async {
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// Set loading state
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state = state.copyWith(isLoading: true, error: null);
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// Call logout use case
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final result = await logoutUseCase();
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// Handle result
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result.fold(
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(failure) {
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// Logout failed - but still reset to initial state
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// (local data should be cleared even if API call fails)
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state = const AuthState.initial();
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},
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(_) {
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// Logout successful - reset to initial state
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state = const AuthState.initial();
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},
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);
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}
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/// Check authentication status on app start
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///
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/// Loads user data from storage if authenticated
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Future<void> checkAuthStatus() async {
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// Check if user is authenticated
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final isAuthenticated = await checkAuthStatusUseCase();
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if (isAuthenticated) {
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// Try to load user data
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final result = await getCurrentUserUseCase();
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result.fold(
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(failure) {
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// Failed to load user data - reset to initial state
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state = const AuthState.initial();
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},
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(user) {
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// User data loaded - set authenticated state
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state = AuthState.authenticated(user);
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},
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);
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} else {
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// Not authenticated - initial state
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state = const AuthState.initial();
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}
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}
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/// Clear error message
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void clearError() {
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if (state.error != null) {
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state = state.copyWith(error: null);
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}
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}
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/// Reset to initial state
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void reset() {
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state = const AuthState.initial();
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}
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}
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202
lib/features/auth/presentation/widgets/login_form.dart
Normal file
202
lib/features/auth/presentation/widgets/login_form.dart
Normal file
@@ -0,0 +1,202 @@
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import 'package:flutter/material.dart';
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/// Reusable login form widget with validation
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///
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/// Handles username and password input with proper validation
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class LoginForm extends StatefulWidget {
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/// Callback when login button is pressed
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final void Function(String username, String password) onSubmit;
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/// Whether the form is in loading state
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final bool isLoading;
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const LoginForm({
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super.key,
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required this.onSubmit,
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this.isLoading = false,
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});
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@override
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State<LoginForm> createState() => _LoginFormState();
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}
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class _LoginFormState extends State<LoginForm> {
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final _formKey = GlobalKey<FormState>();
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final _usernameController = TextEditingController(text: "yesterday305@gmail.com");
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final _passwordController = TextEditingController(text: '123456');
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bool _obscurePassword = true;
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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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void _handleSubmit() {
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// Validate form
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if (_formKey.currentState?.validate() ?? false) {
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// Call submit callback
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widget.onSubmit(
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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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||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
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return Form(
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key: _formKey,
|
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child: Column(
|
||||
crossAxisAlignment: CrossAxisAlignment.stretch,
|
||||
children: [
|
||||
// Username field
|
||||
TextFormField(
|
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controller: _usernameController,
|
||||
enabled: !widget.isLoading,
|
||||
decoration: InputDecoration(
|
||||
labelText: 'Username',
|
||||
hintText: 'Enter your username',
|
||||
prefixIcon: const Icon(Icons.person_outline),
|
||||
border: OutlineInputBorder(
|
||||
borderRadius: BorderRadius.circular(8),
|
||||
),
|
||||
),
|
||||
keyboardType: TextInputType.text,
|
||||
textInputAction: TextInputAction.next,
|
||||
validator: (value) {
|
||||
if (value == null || value.trim().isEmpty) {
|
||||
return 'Username is required';
|
||||
}
|
||||
if (value.trim().length < 3) {
|
||||
return 'Username must be at least 3 characters';
|
||||
}
|
||||
return null;
|
||||
},
|
||||
),
|
||||
|
||||
const SizedBox(height: 16),
|
||||
|
||||
// Password field
|
||||
TextFormField(
|
||||
controller: _passwordController,
|
||||
enabled: !widget.isLoading,
|
||||
obscureText: _obscurePassword,
|
||||
decoration: InputDecoration(
|
||||
labelText: 'Password',
|
||||
hintText: 'Enter your password',
|
||||
prefixIcon: const Icon(Icons.lock_outline),
|
||||
suffixIcon: IconButton(
|
||||
icon: Icon(
|
||||
_obscurePassword
|
||||
? Icons.visibility_outlined
|
||||
: Icons.visibility_off_outlined,
|
||||
),
|
||||
onPressed: () {
|
||||
setState(() {
|
||||
_obscurePassword = !_obscurePassword;
|
||||
});
|
||||
},
|
||||
),
|
||||
border: OutlineInputBorder(
|
||||
borderRadius: BorderRadius.circular(8),
|
||||
),
|
||||
),
|
||||
textInputAction: TextInputAction.done,
|
||||
onFieldSubmitted: (_) => _handleSubmit(),
|
||||
validator: (value) {
|
||||
if (value == null || value.isEmpty) {
|
||||
return 'Password is required';
|
||||
}
|
||||
if (value.length < 6) {
|
||||
return 'Password must be at least 6 characters';
|
||||
}
|
||||
return null;
|
||||
},
|
||||
),
|
||||
|
||||
const SizedBox(height: 24),
|
||||
|
||||
// Login button
|
||||
FilledButton.icon(
|
||||
onPressed: widget.isLoading ? null : _handleSubmit,
|
||||
icon: widget.isLoading
|
||||
? const SizedBox(
|
||||
width: 20,
|
||||
height: 20,
|
||||
child: CircularProgressIndicator(
|
||||
strokeWidth: 2,
|
||||
color: Colors.white,
|
||||
),
|
||||
)
|
||||
: const Icon(Icons.login),
|
||||
label: Text(widget.isLoading ? 'Logging in...' : 'Login'),
|
||||
style: FilledButton.styleFrom(
|
||||
padding: const EdgeInsets.symmetric(vertical: 16),
|
||||
shape: RoundedRectangleBorder(
|
||||
borderRadius: BorderRadius.circular(8),
|
||||
),
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
/// Simple text field widget for login forms
|
||||
class LoginTextField extends StatelessWidget {
|
||||
final TextEditingController controller;
|
||||
final String label;
|
||||
final String hint;
|
||||
final IconData? prefixIcon;
|
||||
final bool obscureText;
|
||||
final TextInputType? keyboardType;
|
||||
final TextInputAction? textInputAction;
|
||||
final String? Function(String?)? validator;
|
||||
final void Function(String)? onFieldSubmitted;
|
||||
final bool enabled;
|
||||
final Widget? suffixIcon;
|
||||
|
||||
const LoginTextField({
|
||||
super.key,
|
||||
required this.controller,
|
||||
required this.label,
|
||||
required this.hint,
|
||||
this.prefixIcon,
|
||||
this.obscureText = false,
|
||||
this.keyboardType,
|
||||
this.textInputAction,
|
||||
this.validator,
|
||||
this.onFieldSubmitted,
|
||||
this.enabled = true,
|
||||
this.suffixIcon,
|
||||
});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
return TextFormField(
|
||||
controller: controller,
|
||||
enabled: enabled,
|
||||
obscureText: obscureText,
|
||||
keyboardType: keyboardType,
|
||||
textInputAction: textInputAction,
|
||||
onFieldSubmitted: onFieldSubmitted,
|
||||
decoration: InputDecoration(
|
||||
labelText: label,
|
||||
hintText: hint,
|
||||
prefixIcon: prefixIcon != null ? Icon(prefixIcon) : null,
|
||||
suffixIcon: suffixIcon,
|
||||
border: OutlineInputBorder(
|
||||
borderRadius: BorderRadius.circular(8),
|
||||
),
|
||||
filled: true,
|
||||
fillColor: enabled
|
||||
? Theme.of(context).colorScheme.surface
|
||||
: Theme.of(context).colorScheme.surfaceVariant.withOpacity(0.3),
|
||||
),
|
||||
validator: validator,
|
||||
);
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user