TKK_Nisa_E32221364/lib/screens/login_screen.dart

412 lines
12 KiB
Dart

import 'package:flutter/material.dart';
import '../utils/app_colors.dart';
import '../widgets/custom_text_field.dart';
import '../widgets/custom_button.dart';
import '../services/auth_service.dart';
import '../services/firestore_service.dart';
import 'dashboard_screen.dart';
import 'package:firebase_auth/firebase_auth.dart';
class LoginScreen extends StatefulWidget {
const LoginScreen({Key? key}) : super(key: key);
@override
State<LoginScreen> createState() => _LoginScreenState();
}
class _LoginScreenState extends State<LoginScreen>
with TickerProviderStateMixin {
final _formKey = GlobalKey<FormState>();
final _emailController = TextEditingController();
final _passwordController = TextEditingController();
final _authService = AuthService();
final _firestoreService = FirestoreService();
bool _isLoading = false;
late AnimationController _animationController;
late AnimationController _pulseAnimationController;
late Animation<double> _fadeAnimation;
late Animation<Offset> _slideAnimation;
late Animation<double> _scaleAnimation;
late Animation<double> _pulseAnimation;
@override
void initState() {
super.initState();
// Initialize animation controllers
_animationController = AnimationController(
duration: const Duration(milliseconds: 1500),
vsync: this,
);
_pulseAnimationController = AnimationController(
duration: const Duration(milliseconds: 2000),
vsync: this,
);
// Initialize animations
_fadeAnimation = Tween<double>(begin: 0.0, end: 1.0).animate(
CurvedAnimation(parent: _animationController, curve: Curves.easeInOut),
);
_slideAnimation = Tween<Offset>(
begin: const Offset(0, 0.5),
end: Offset.zero,
).animate(
CurvedAnimation(parent: _animationController, curve: Curves.elasticOut),
);
_scaleAnimation = Tween<double>(begin: 0.8, end: 1.0).animate(
CurvedAnimation(parent: _animationController, curve: Curves.elasticOut),
);
_pulseAnimation = Tween<double>(begin: 1.0, end: 1.1).animate(
CurvedAnimation(
parent: _pulseAnimationController,
curve: Curves.easeInOut,
),
);
// Start animations
_animationController.forward();
_pulseAnimationController.repeat(reverse: true);
}
@override
void dispose() {
_animationController.dispose();
_pulseAnimationController.dispose();
_emailController.dispose();
_passwordController.dispose();
super.dispose();
}
String? _validateEmail(String? value) {
if (value == null || value.isEmpty) {
return 'Email tidak boleh kosong';
}
if (!RegExp(r'^[\w-\.]+@([\w-]+\.)+[\w-]{2,4}$').hasMatch(value)) {
return 'Format email tidak valid';
}
return null;
}
String? _validatePassword(String? value) {
if (value == null || value.isEmpty) {
return 'Password tidak boleh kosong';
}
if (value.length < 6) {
return 'Password minimal 6 karakter';
}
return null;
}
void _handleLogin() async {
if (_formKey.currentState!.validate()) {
setState(() {
_isLoading = true;
});
try {
// Login dengan Firebase
UserCredential? result = await _authService.signInWithEmailAndPassword(
email: _emailController.text.trim(),
password: _passwordController.text.trim(),
);
if (result?.user != null) {
// Cek apakah user profile sudah ada di Firestore
var userProfile = await _firestoreService.getUserProfile(
result!.user!.uid,
);
if (userProfile == null) {
// Buat profile baru jika belum ada
await _firestoreService.createUserProfile(
uid: result.user!.uid,
email: result.user!.email!,
displayName: result.user!.displayName,
photoURL: result.user!.photoURL,
);
}
// Tampilkan pesan sukses
ScaffoldMessenger.of(context).showSnackBar(
const SnackBar(
content: Text('Login berhasil!'),
backgroundColor: AppColors.accentGreen,
),
);
// TODO: Navigate to home screen
Navigator.pushReplacement(
context,
MaterialPageRoute(builder: (context) => const DashboardScreen()),
);
}
} catch (e) {
// Tampilkan error message
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(
content: Text(e.toString()),
backgroundColor: AppColors.textError,
),
);
} finally {
setState(() {
_isLoading = false;
});
}
}
}
@override
Widget build(BuildContext context) {
final screenHeight = MediaQuery.of(context).size.height;
final screenWidth = MediaQuery.of(context).size.width;
return Scaffold(
body: Container(
width: screenWidth,
height: screenHeight,
decoration: const BoxDecoration(
gradient: LinearGradient(
begin: Alignment.topLeft,
end: Alignment.bottomRight,
colors: [
AppColors.backgroundLight,
AppColors.backgroundWhite,
Color(0xFFFFF8F0),
],
),
),
child: SafeArea(
child: FadeTransition(
opacity: _fadeAnimation,
child: SlideTransition(
position: _slideAnimation,
child: ScaleTransition(
scale: _scaleAnimation,
child: SingleChildScrollView(
padding: EdgeInsets.symmetric(
horizontal: screenWidth * 0.08,
vertical: 16,
),
child: Form(
key: _formKey,
child: Column(
crossAxisAlignment: CrossAxisAlignment.center,
children: [
SizedBox(height: screenHeight * 0.05),
// Logo and App Title
_buildHeader(),
SizedBox(height: screenHeight * 0.06),
// Login Form
_buildLoginForm(),
SizedBox(height: screenHeight * 0.04),
// Login Button
CustomButton(
text: 'Masuk',
onPressed: _handleLogin,
isLoading: _isLoading,
width: double.infinity,
height: 54,
icon: Icons.login,
),
SizedBox(height: screenHeight * 0.04),
// Footer
_buildFooter(),
],
),
),
),
),
),
),
),
),
);
}
Widget _buildHeader() {
return Column(
children: [
// Fire Detection Logo with animated pulse
AnimatedBuilder(
animation: _pulseAnimation,
builder: (context, child) {
return Transform.scale(
scale: _pulseAnimation.value,
child: Container(
width: 110,
height: 110,
decoration: BoxDecoration(
shape: BoxShape.circle,
gradient: AppColors.primaryGradient,
boxShadow: [
BoxShadow(
color: AppColors.primaryRed.withOpacity(0.4),
blurRadius: 25,
offset: const Offset(0, 10),
),
BoxShadow(
color: AppColors.primaryOrange.withOpacity(0.3),
blurRadius: 40,
offset: const Offset(0, 15),
),
],
),
child: const Icon(
Icons.local_fire_department,
size: 55,
color: AppColors.textLight,
),
),
);
},
),
const SizedBox(height: 20),
// App Title
const Text(
'Fire Detection',
style: TextStyle(
fontSize: 28,
fontWeight: FontWeight.bold,
color: AppColors.textPrimary,
letterSpacing: 1.2,
),
),
const SizedBox(height: 8),
// Subtitle
const Text(
'Sistem Deteksi Kebakaran Otomatis',
style: TextStyle(
fontSize: 14,
color: AppColors.textSecondary,
fontWeight: FontWeight.w400,
),
),
],
);
}
Widget _buildLoginForm() {
return Container(
padding: const EdgeInsets.all(20),
decoration: BoxDecoration(
color: AppColors.backgroundWhite,
borderRadius: BorderRadius.circular(20),
boxShadow: [
BoxShadow(
color: AppColors.secondaryGray.withOpacity(0.08),
blurRadius: 25,
offset: const Offset(0, 10),
),
BoxShadow(
color: AppColors.primaryRed.withOpacity(0.05),
blurRadius: 30,
offset: const Offset(0, 20),
),
],
),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
const Text(
'Masuk ke Akun Anda',
style: TextStyle(
fontSize: 22,
fontWeight: FontWeight.w600,
color: AppColors.textPrimary,
),
),
const SizedBox(height: 6),
const Text(
'Silakan masukkan email dan password Anda',
style: TextStyle(fontSize: 13, color: AppColors.textSecondary),
),
const SizedBox(height: 24),
// Email Field
CustomTextField(
hintText: 'Masukkan email Anda',
labelText: 'Email',
prefixIcon: Icons.email_outlined,
controller: _emailController,
validator: _validateEmail,
keyboardType: TextInputType.emailAddress,
),
// Password Field
CustomTextField(
hintText: 'Masukkan password Anda',
labelText: 'Password',
prefixIcon: Icons.lock_outline,
controller: _passwordController,
validator: _validatePassword,
obscureText: true,
),
],
),
);
}
Widget _buildFooter() {
return Column(
children: [
// Row(
// mainAxisAlignment: MainAxisAlignment.center,
// children: [
// const Text(
// 'Belum punya akun? ',
// style: TextStyle(color: AppColors.textSecondary, fontSize: 14),
// ),
// TextButton(
// onPressed: () {
// // Navigate to register page
// },
// child: const Text(
// 'Daftar Sekarang',
// style: TextStyle(
// color: AppColors.primaryRed,
// fontSize: 14,
// fontWeight: FontWeight.w600,
// ),
// ),
// ),
// ],
// ),
const SizedBox(height: 16),
// Version Info
const Text(
'Version 1.0.0',
style: TextStyle(color: AppColors.textSecondary, fontSize: 12),
),
const SizedBox(height: 4),
// Copyright
const Text(
'© 2025 Fire Detection System',
style: TextStyle(color: AppColors.textSecondary, fontSize: 12),
),
],
);
}
}