build + feat: imlementacion de estrucutras de interfaz grafica, construccion del proyecto. Pendiente de arreglar: errores en interfaces
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25030248hasel
263
lib/features/auth/presentation/screens/login_screen.dart
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263
lib/features/auth/presentation/screens/login_screen.dart
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import 'package:flutter/material.dart';
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import 'package:flutter_bloc/flutter_bloc.dart';
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import 'package:go_router/go_router.dart';
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import '../../../../core/theme/app_theme.dart';
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import '../bloc/auth_bloc.dart';
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import '../bloc/auth_event.dart';
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import '../bloc/auth_state.dart';
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import '../widgets/privacy_notice_card.dart';
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/// Pantalla de inicio de sesión — MVP WasteNotify.
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///
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/// Diseño: Limpio, institucional, con paleta verde-tierra.
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/// Incluye mensajería preventiva integrada de forma no intrusiva.
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///
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/// Credenciales de demo:
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/// Ciudadano: ciudadano@ejemplo.com / password123
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/// Operador: operador@ejemplo.com / operador456
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/// Teléfono: 5551234567 / pass1234
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class LoginScreen extends StatefulWidget {
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const LoginScreen({super.key});
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@override
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State<LoginScreen> createState() => _LoginScreenState();
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}
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class _LoginScreenState extends State<LoginScreen>
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with SingleTickerProviderStateMixin {
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final _formKey = GlobalKey<FormState>();
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final _identifierController = TextEditingController();
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final _passwordController = TextEditingController();
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bool _obscurePassword = true;
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late final AnimationController _animController;
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late final Animation<double> _fadeAnim;
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late final Animation<Offset> _slideAnim;
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@override
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void initState() {
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super.initState();
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_animController = AnimationController(
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vsync: this,
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duration: const Duration(milliseconds: 700),
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);
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_fadeAnim = CurvedAnimation(
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parent: _animController,
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curve: Curves.easeOut,
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);
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_slideAnim = Tween<Offset>(
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begin: const Offset(0, 0.06),
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end: Offset.zero,
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).animate(CurvedAnimation(
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parent: _animController,
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curve: Curves.easeOutCubic,
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));
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_animController.forward();
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}
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@override
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void dispose() {
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_animController.dispose();
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_identifierController.dispose();
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_passwordController.dispose();
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super.dispose();
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}
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void _submit(BuildContext context) {
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if (_formKey.currentState?.validate() ?? false) {
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context.read<AuthBloc>().add(
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AuthLoginRequested(
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identifier: _identifierController.text,
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password: _passwordController.text,
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),
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);
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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 BlocListener<AuthBloc, AuthState>(
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listener: (context, state) {
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if (state is AuthFailure) {
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Row(
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children: [
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const Icon(Icons.error_outline, color: Colors.white, size: 18),
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const SizedBox(width: 10),
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Expanded(child: Text(state.message)),
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],
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),
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backgroundColor: AppTheme.errorRed,
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),
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);
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}
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},
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child: Scaffold(
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backgroundColor: AppTheme.warmWhite,
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body: SafeArea(
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child: CustomScrollView(
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slivers: [
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SliverFillRemaining(
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hasScrollBody: false,
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child: FadeTransition(
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opacity: _fadeAnim,
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child: SlideTransition(
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position: _slideAnim,
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child: Padding(
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padding: const EdgeInsets.symmetric(horizontal: 28),
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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const SizedBox(height: 48),
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_buildHeader(),
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const SizedBox(height: 32),
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const ScheduleWarningBanner(),
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const SizedBox(height: 32),
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_buildForm(context),
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const SizedBox(height: 24),
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const PrivacyNoticeCard(),
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const SizedBox(height: 32),
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_buildDemoHint(),
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const SizedBox(height: 24),
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],
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),
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),
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), const SizedBox(height: 8),
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Text(
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'Sistema Municipal de Recolección Residencial\nCelaya, Guanajuato',
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textAlign: TextAlign.center,
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style: TextStyle(
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fontSize: 12, color: Colors.grey.shade600, height: 1.3),
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),
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const SizedBox(height: 48),
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// --- CAMPO: EMAIL / IDENTIFICADOR ---
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TextFormField(
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controller: _emailController,
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keyboardType: TextInputType.emailAddress,
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decoration: const InputDecoration(
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labelText: 'Correo Electrónico o Teléfono',
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prefixIcon: Icon(Icons.email_outlined),
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border: OutlineInputBorder(
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borderRadius: BorderRadius.all(Radius.circular(12))),
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),
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validator: (value) =>
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(value == null || value.trim().isEmpty)
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? 'Por favor, ingresa tus datos de acceso'
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: null,
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),
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const SizedBox(height: 20),
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// --- CAMPO: CONTRASENA ---
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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: 'Contraseña de Acceso',
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prefixIcon: Icon(Icons.lock_outline_rounded),
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border: OutlineInputBorder(
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borderRadius: BorderRadius.all(Radius.circular(12))),
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),
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validator: (value) => (value == null || value.isEmpty)
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? 'Por favor, introduce tu contraseña'
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: null,
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),
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const SizedBox(height: 32),
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// --- CONTENEDOR REACTIVO DE BOTONES (LOGIN & REGISTER) ---
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// --- CONTENEDOR REACTIVO DE BOTONES (LOGIN & REGISTER) ---
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BlocBuilder<AuthBloc, AuthState>(
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builder: (context, state) {
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final isLoading = state is AuthLoading;
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return Column(
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mainAxisSize: MainAxisSize.min,
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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AnimatedContainer(
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duration: const Duration(milliseconds: 200),
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decoration: BoxDecoration(
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borderRadius: BorderRadius.circular(12),
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boxShadow: isLoading
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? []
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: [
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BoxShadow(
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color: AppTheme.leafGreen
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.withOpacity(0.3),
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blurRadius: 16,
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offset: const Offset(0, 6),
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),
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],
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),
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child: ElevatedButton(
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onPressed:
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isLoading ? null : () => _submit(context),
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style: ElevatedButton.styleFrom(
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backgroundColor: isLoading
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? AppTheme.mintGreen.withOpacity(0.7)
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: AppTheme.leafGreen,
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disabledBackgroundColor:
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AppTheme.mintGreen.withOpacity(0.6),
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padding:
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const EdgeInsets.symmetric(vertical: 16),
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shape: RoundedRectangleBorder(
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borderRadius: BorderRadius.circular(12)),
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),
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child: isLoading
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? const SizedBox(
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height: 22,
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width: 22,
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child: CircularProgressIndicator(
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strokeWidth: 2.5,
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valueColor: AlwaysStoppedAnimation(
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Colors.white),
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),
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)
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: const Row(
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mainAxisAlignment:
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MainAxisAlignment.center,
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children: [
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Icon(Icons.login_rounded,
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size: 20, color: Colors.white),
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SizedBox(width: 10),
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Text(
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'Ingresar de forma segura',
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style: TextStyle(
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color: Colors.white,
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fontSize: 15,
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fontWeight: FontWeight.bold),
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),
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],
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),
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),
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),
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// 📍 ENLACE DE REDIRECCIÓN AL REGISTRO CIUDADANO
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const SizedBox(height: 20),
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TextButton(
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onPressed: () {
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// 🚀 Forzamos la navegación limpia usando la ruta de texto directo
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context.push('/register');
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},
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child: const Text(
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'¿No tienes una cuenta ciudadana? Regístrate aquí',
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style: TextStyle(
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color: AppTheme.leafGreen,
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fontWeight: FontWeight.w700,
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fontSize: 13,
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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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], // Fin children de la Column
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), // Fin Column
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), // Fin Form
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), // Fin SingleChildScrollView
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), // Fin SafeArea
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), // Fin BlocListener
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); // Fin Scaffold (Asegúrate de que tenga el punto y coma aquí)
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