508 lines
16 KiB
Dart
508 lines
16 KiB
Dart
import 'package:flutter/material.dart';
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import '../utils/text_utils.dart';
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import 'home.dart';
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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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// State class for LoginScreen, with animation support for flipping forms
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class _LoginScreenState extends State<LoginScreen>
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with SingleTickerProviderStateMixin {
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bool isDarkMode = false; // Tracks dark mode state
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bool isRemembered = false; // Tracks "Remember Me" checkbox
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bool isLogin = true; // Tracks if login or register form is shown
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// Controllers for email and password input fields
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final TextEditingController _emailController = TextEditingController();
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final TextEditingController _passwordController = TextEditingController();
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// Hardcoded credentials, updated on registration or password reset
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String _correctEmail = 'Amazons@tech.com';
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String _correctPassword = '12345';
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// Animation controller and animation for flipping between forms
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late AnimationController _animationController;
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late Animation<double> _animation;
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@override
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void initState() {
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super.initState();
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// Initialize animation controller for flip effect
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_animationController = AnimationController(
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vsync: this,
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duration: const Duration(milliseconds: 600),
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);
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// Tween for flip animation
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_animation = Tween<double>(begin: 0, end: 1).animate(
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CurvedAnimation(parent: _animationController, curve: Curves.easeInOut),
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);
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}
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@override
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void dispose() {
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// Dispose controllers to free resources
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_animationController.dispose();
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_emailController.dispose();
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_passwordController.dispose();
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super.dispose();
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}
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// Login logic: checks credentials and navigates to HomePage if correct
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void _login() {
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if (_emailController.text == _correctEmail &&
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_passwordController.text == _correctPassword) {
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Navigator.push(
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context,
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MaterialPageRoute(
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builder: (context) => HomePage(email: _emailController.text), // Go to HomePage
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),
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);
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} else {
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// Show error if credentials are wrong
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ScaffoldMessenger.of(
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context,
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).showSnackBar(const SnackBar(content: Text('Invalid credentials')));
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}
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}
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// Registration logic: updates hardcoded credentials and flips back to login
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void _register() {
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if (_emailController.text.isNotEmpty &&
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_passwordController.text.isNotEmpty) {
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setState(() {
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_correctEmail = _emailController.text; // Update email
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_correctPassword = _passwordController.text; // Update password
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isLogin = true; // Switch to login form
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});
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_animationController.reverse(); // Animate back to login
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ScaffoldMessenger.of(context).showSnackBar(
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const SnackBar(content: Text('Registration successful! Please login')),
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);
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}
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}
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// Password reset logic: updates the hardcoded password
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void _resetPassword(String newPassword) {
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setState(() {
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_correctPassword = newPassword; // Update password
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});
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Navigator.pop(context); // Close dialog
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ScaffoldMessenger.of(context).showSnackBar(
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const SnackBar(content: Text('Password updated successfully!')),
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);
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}
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// Shows a dialog to enter a new password for reset
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void _showResetPasswordDialog() {
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final TextEditingController newPasswordController = TextEditingController();
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showDialog(
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context: context,
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builder: (context) => AlertDialog(
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title: Text(
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'Reset Password',
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style: TextStyle(color: isDarkMode ? Colors.white : Colors.black),
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),
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content: SizedBox(
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height: 100,
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child: Column(
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children: [
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TextFormField(
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controller: newPasswordController, // Controller for new password
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obscureText: true, // Hide input
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decoration: InputDecoration(
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labelText: 'New Password',
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labelStyle: TextStyle(
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color: isDarkMode ? Colors.white70 : Colors.black54,
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),
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border: OutlineInputBorder(),
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enabledBorder: OutlineInputBorder(
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borderSide: BorderSide(
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color: isDarkMode ? Colors.white70 : Colors.black54,
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),
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),
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),
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style: TextStyle(
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color: isDarkMode ? Colors.white : Colors.black,
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),
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),
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],
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),
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),
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backgroundColor: isDarkMode ? Colors.grey[900] : Colors.white,
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actions: [
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// Cancel button
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TextButton(
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onPressed: () => Navigator.pop(context),
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child: Text(
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'Cancel',
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style: TextStyle(
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color: isDarkMode ? Colors.white70 : Colors.black54,
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),
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),
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),
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// Update button
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TextButton(
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onPressed: () {
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if (newPasswordController.text.isNotEmpty) {
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_resetPassword(newPasswordController.text); // Update password
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}
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},
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child: Text(
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'Update',
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style: TextStyle(
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color: const Color(0xFFC76723),
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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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);
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}
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// Login form widget
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Widget _buildLoginForm() {
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return Column(
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mainAxisSize: MainAxisSize.min,
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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const SizedBox(height: 20), // Spacer
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Center(
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child: SizedBox(
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height: 150,
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width: 200,
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child: Image.asset('assets/logo.png', fit: BoxFit.contain), // Logo
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),
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),
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const SizedBox(height: 4),
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Center(
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child: TextUtil(
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text: "Login",
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weight: true,
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size: 30,
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color: isDarkMode ? Colors.white : Colors.black,
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),
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),
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const SizedBox(height: 20),
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TextUtil(
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text: "Email",
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color: isDarkMode ? Colors.white : Colors.black,
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),
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Container(
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height: 35,
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decoration: BoxDecoration(
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border: Border(
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bottom: BorderSide(
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color: isDarkMode ? Colors.white : Colors.black,
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),
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),
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),
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child: TextFormField(
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controller: _emailController, // Email input
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style: TextStyle(color: isDarkMode ? Colors.white : Colors.black),
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decoration: InputDecoration(
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suffixIcon: Icon(
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Icons.mail,
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color: isDarkMode ? Colors.white : Colors.black,
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),
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border: InputBorder.none,
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),
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),
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),
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const SizedBox(height: 20),
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TextUtil(
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text: "Password",
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color: isDarkMode ? Colors.white : Colors.black,
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),
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Container(
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height: 35,
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decoration: BoxDecoration(
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border: Border(
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bottom: BorderSide(
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color: isDarkMode ? Colors.white : Colors.black,
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),
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),
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),
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child: TextFormField(
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controller: _passwordController, // Password input
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obscureText: true, // Hide input
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style: TextStyle(color: isDarkMode ? Colors.white : Colors.black),
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decoration: InputDecoration(
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suffixIcon: Icon(
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Icons.lock,
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color: isDarkMode ? Colors.white : Colors.black,
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),
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border: InputBorder.none,
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),
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),
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),
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const SizedBox(height: 20),
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Row(
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children: [
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// Remember Me checkbox
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TextButton.icon(
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onPressed: () {
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setState(() {
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isRemembered = !isRemembered;
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});
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},
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icon: Icon(
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isRemembered ? Icons.check_box : Icons.check_box_outline_blank,
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color: isDarkMode ? Colors.white : Colors.black,
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size: 18,
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),
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label: TextUtil(
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text: "Remember Me",
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size: 12,
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color: isDarkMode ? Colors.white : Colors.black,
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),
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style: TextButton.styleFrom(padding: EdgeInsets.zero),
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),
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const Spacer(),
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// Forget password button
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TextButton(
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onPressed: _showResetPasswordDialog, // Show reset dialog
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style: TextButton.styleFrom(padding: EdgeInsets.zero),
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child: TextUtil(
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text: "FORGET PASSWORD",
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size: 12,
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color: isDarkMode ? Colors.white : Colors.black,
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),
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),
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],
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),
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const SizedBox(height: 20),
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// Login button
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GestureDetector(
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onTap: _login, // Call login logic
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child: Container(
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height: 40,
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width: double.infinity,
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decoration: BoxDecoration(
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color: isDarkMode ? Colors.white : Colors.black,
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borderRadius: BorderRadius.circular(30),
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),
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alignment: Alignment.center,
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child: TextUtil(
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text: "Log In",
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color: isDarkMode ? Colors.black : Colors.white,
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),
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),
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),
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const SizedBox(height: 20),
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// Switch to register form
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GestureDetector(
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onTap: () {
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setState(() {
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isLogin = false; // Show register form
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_emailController.clear();
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_passwordController.clear();
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});
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_animationController.forward(); // Animate flip
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},
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child: Center(
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child: TextUtil(
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text: "Don't have an account? REGISTER",
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size: 14,
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color: isDarkMode ? Colors.white : Colors.black,
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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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// Register form widget (flipped)
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Widget _buildRegisterForm() {
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return Transform(
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transform: Matrix4.identity()..rotateY(3.14159), // Flip effect
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alignment: Alignment.center,
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child: Column(
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mainAxisSize: MainAxisSize.min,
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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const SizedBox(height: 20),
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Center(
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child: SizedBox(
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height: 150,
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width: 200,
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child: Image.asset('assets/logo.png', fit: BoxFit.contain), // Logo
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),
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),
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const SizedBox(height: 20),
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Center(
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child: TextUtil(
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text: "Register",
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weight: true,
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size: 30,
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color: isDarkMode ? Colors.white : Colors.black,
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),
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),
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const SizedBox(height: 20),
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TextUtil(
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text: "Email",
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color: isDarkMode ? Colors.white : Colors.black,
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),
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Container(
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height: 35,
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decoration: BoxDecoration(
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border: Border(
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bottom: BorderSide(
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color: isDarkMode ? Colors.white : Colors.black,
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),
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),
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),
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child: TextFormField(
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controller: _emailController, // Email input
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style: TextStyle(color: isDarkMode ? Colors.white : Colors.black),
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decoration: InputDecoration(
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suffixIcon: Icon(
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Icons.mail,
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color: isDarkMode ? Colors.white : Colors.black,
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),
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border: InputBorder.none,
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),
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),
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),
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const SizedBox(height: 20),
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TextUtil(
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text: "Password",
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color: isDarkMode ? Colors.white : Colors.black,
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),
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Container(
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height: 35,
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decoration: BoxDecoration(
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border: Border(
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bottom: BorderSide(
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color: isDarkMode ? Colors.white : Colors.black,
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),
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),
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),
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child: TextFormField(
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controller: _passwordController, // Password input
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obscureText: true, // Hide input
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style: TextStyle(color: isDarkMode ? Colors.white : Colors.black),
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decoration: InputDecoration(
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suffixIcon: Icon(
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Icons.lock,
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color: isDarkMode ? Colors.white : Colors.black,
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),
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border: InputBorder.none,
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),
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),
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),
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const SizedBox(height: 40),
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// Register button
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GestureDetector(
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onTap: _register, // Call register logic
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child: Container(
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height: 40,
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width: double.infinity,
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decoration: BoxDecoration(
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color: isDarkMode ? Colors.white : Colors.black,
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borderRadius: BorderRadius.circular(30),
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),
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alignment: Alignment.center,
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child: TextUtil(
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text: "Register Me",
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color: isDarkMode ? Colors.black : Colors.white,
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),
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),
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),
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const SizedBox(height: 20),
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// Switch to login form
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GestureDetector(
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onTap: () {
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setState(() {
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isLogin = true; // Show login form
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_emailController.clear();
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_passwordController.clear();
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});
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_animationController.reverse(); // Animate flip
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},
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child: Center(
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child: TextUtil(
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text: "Already have an account? LOGIN",
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size: 14,
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color: isDarkMode ? Colors.white : Colors.black,
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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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@override
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Widget build(BuildContext context) {
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return Theme(
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data: isDarkMode ? ThemeData.dark() : ThemeData.light(), // Set theme
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child: Scaffold(
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appBar: AppBar(
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backgroundColor: const Color(0xFFC76723), // Custom orange color
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elevation: 0,
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actions: [
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IconButton(
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icon: Icon(
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isDarkMode ? Icons.light_mode : Icons.dark_mode,
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color: Colors.white,
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),
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onPressed: () {
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setState(() {
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isDarkMode = !isDarkMode; // Toggle theme
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});
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},
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),
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],
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),
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body: Container(
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height: double.infinity,
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width: double.infinity,
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color: isDarkMode ? const Color.fromARGB(255, 26, 24, 24) : Colors.white, // Background color
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child: Align(
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alignment: Alignment.center,
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child: Container(
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width: double.infinity,
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margin: const EdgeInsets.symmetric(horizontal: 30),
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decoration: BoxDecoration(
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border: Border.all(
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color: isDarkMode
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? const Color(0xFF23272F) // Use a dark blue/grey for dark mode
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: const Color.fromARGB(136, 71, 69, 69),
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),
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borderRadius: BorderRadius.circular(15),
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color: isDarkMode
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? const Color.fromARGB(137, 132, 129, 129) // Use a dark blue/grey for dark mode
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: Colors.white70,
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),
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child: SingleChildScrollView(
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child: Padding(
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padding: const EdgeInsets.all(25),
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child: AnimatedBuilder(
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animation: _animation,
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builder: (context, child) {
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// Flip between login and register forms
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return Transform(
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transform: Matrix4.identity()
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..setEntry(3, 2, 0.001)
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..rotateY(3.14159 * _animation.value),
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alignment: Alignment.center,
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child: isLogin ? _buildLoginForm() : _buildRegisterForm(),
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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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}
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