Velar/Frontend/lib/main_pages/Statistics/Budget/update_budget.dart

423 lines
12 KiB
Dart

// ignore_for_file: deprecated_member_use, use_build_context_synchronously
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:google_fonts/google_fonts.dart';
import 'package:monarch/other_pages/colors.dart';
import 'package:monarch/main_pages/Statistics/statistics.dart';
class UpdateBudget extends StatefulWidget {
const UpdateBudget({super.key});
@override
State<UpdateBudget> createState() => _UpdateBudgetState();
}
class _UpdateBudgetState extends State<UpdateBudget>
with TickerProviderStateMixin {
// Constants and Controllers
static const _animationDuration = Duration(milliseconds: 600);
static const _fadeDuration = Duration(milliseconds: 800);
// Controllers and Focus Nodes
final TextEditingController amountController = TextEditingController();
final FocusNode _amountFocus = FocusNode();
// Animation Controllers
late AnimationController _slideController;
late AnimationController _fadeController;
late Animation<Offset> _slideAnimation;
late Animation<double> _fadeAnimation;
// State Variables
String _displayAmount = '';
@override
void initState() {
super.initState();
_initializeAnimations();
_setupFocusListeners();
}
@override
void dispose() {
_slideController.dispose();
_fadeController.dispose();
amountController.dispose();
_amountFocus.dispose();
super.dispose();
}
void _initializeAnimations() {
_slideController = AnimationController(
duration: _animationDuration,
vsync: this,
);
_fadeController = AnimationController(duration: _fadeDuration, vsync: this);
_slideAnimation = Tween<Offset>(
begin: const Offset(0, 1),
end: Offset.zero,
).animate(
CurvedAnimation(parent: _slideController, curve: Curves.easeOutCubic),
);
_fadeAnimation = Tween<double>(
begin: 0.0,
end: 1.0,
).animate(CurvedAnimation(parent: _fadeController, curve: Curves.easeOut));
_slideController.forward();
_fadeController.forward();
}
void _setupFocusListeners() {
_amountFocus.addListener(() => setState(() {}));
}
// UI Components
Widget _buildHeader(BuildContext context) {
return Padding(
padding: EdgeInsets.symmetric(
horizontal: _responsiveWidth(20, context),
vertical: _responsiveHeight(20, context),
),
child: Row(
children: [
_buildBackButton(context),
SizedBox(width: _responsiveWidth(16, context)),
Text(
'Budget',
style: GoogleFonts.inter(
color: Colors.white,
fontSize: _responsiveText(24, context),
fontWeight: FontWeight.w600,
),
),
],
),
);
}
Widget _buildBackButton(BuildContext context) {
return GestureDetector(
onTap: () => Navigator.pushReplacement(
context,
MaterialPageRoute(
builder: (context) => const Statistics(),
),
),
child: Container(
width: _responsiveWidth(44, context),
height: _responsiveWidth(44, context),
decoration: BoxDecoration(
color: primaryColor.withOpacity(0.8),
borderRadius: BorderRadius.circular(14),
border: Border.all(color: Colors.white.withOpacity(0.1), width: 1),
),
child: const Icon(
Icons.arrow_back_ios_new,
color: Colors.white,
size: 20,
),
),
);
}
Widget _buildAmountDisplay() {
return Center(
child: Container(
padding: EdgeInsets.symmetric(
horizontal: _responsiveWidth(24, context),
vertical: _responsiveHeight(16, context),
),
decoration: BoxDecoration(
color: cardColor,
borderRadius: BorderRadius.circular(20),
boxShadow: [
BoxShadow(
color: primaryColor.withOpacity(0.08),
blurRadius: 16,
offset: const Offset(0, 4),
),
],
),
child: Text(
_displayAmount.isEmpty ? '₹0.00' : _displayAmount,
style: GoogleFonts.inter(
fontSize: _responsiveText(36, context),
fontWeight: FontWeight.w700,
color: primaryColor,
),
),
),
);
}
Widget _buildKeypad(BuildContext context) {
return Expanded(
child: GridView.count(
physics: const NeverScrollableScrollPhysics(),
crossAxisCount: 3,
childAspectRatio: 1,
mainAxisSpacing: _responsiveWidth(10, context),
crossAxisSpacing: _responsiveWidth(10, context),
padding: EdgeInsets.symmetric(
horizontal: _responsiveWidth(10, context),
),
children:
[
'1',
'2',
'3',
'4',
'5',
'6',
'7',
'8',
'9',
'.',
'0',
'',
].map((key) => _buildKeypadButton(key, context)).toList(),
),
);
}
Widget _buildKeypadButton(String text, BuildContext context) {
final isSpecial = text == '.' || text == '';
return GestureDetector(
onTap: () => _handleKeyPress(text),
child: Container(
decoration: BoxDecoration(
color: isSpecial ? surfaceColor : cardColor,
borderRadius: BorderRadius.circular(16),
border: Border.all(
color: isSpecial ? textSecondary.withOpacity(0.2) : surfaceColor,
width: 1,
),
boxShadow: [
BoxShadow(
color: primaryColor.withOpacity(0.08),
blurRadius: 8,
offset: const Offset(0, 2),
),
],
),
child: Center(
child: Text(
text,
style: GoogleFonts.inter(
fontSize: _responsiveText(24, context),
fontWeight: FontWeight.w600,
color: isSpecial ? textSecondary : primaryColor,
),
),
),
),
);
}
Widget _buildAddButton(BuildContext context) {
return ElevatedButton(
onPressed: () {
final amount = double.tryParse(amountController.text);
if (amount != null && amount > 0) {
Navigator.pop(context, amount); // Simply return the value
} else if (amount == null || amount <= 0) {
_showCustomSnackBar(
message: 'Please enter a valid budget amount',
icon: Icons.error,
backgroundColor: Colors.red,
);
}
},
child: Container(
width: double.infinity,
height: _responsiveHeight(60, context),
decoration: BoxDecoration(
color: accentColor,
borderRadius: BorderRadius.circular(16),
boxShadow: [
BoxShadow(
color: accentColor.withOpacity(0.3),
blurRadius: 20,
offset: const Offset(0, 8),
),
],
),
child: Center(
child: Text(
'Update Budget',
style: GoogleFonts.inter(
color: Colors.white,
fontSize: _responsiveText(18, context),
fontWeight: FontWeight.w600,
),
),
),
),
);
}
// Helper Methods
double _responsiveWidth(double size, BuildContext context) {
return size *
(MediaQuery.of(context).size.width / 375); // Base width 375 (iPhone 8)
}
double _responsiveHeight(double size, BuildContext context) {
return size *
(MediaQuery.of(context).size.height /
812); // Base height 812 (iPhone 8)
}
double _responsiveText(double size, BuildContext context) {
final width = MediaQuery.of(context).size.width;
if (width < 350) return size * 0.9;
if (width > 600) return size * 1.2;
return size;
}
void _handleKeyPress(String text) {
HapticFeedback.heavyImpact();
if (text == '') {
if (amountController.text.isNotEmpty) {
amountController.text = amountController.text.substring(
0,
amountController.text.length - 1,
);
_updateDisplayAmount();
}
} else if (text == '.') {
if (!amountController.text.contains('.')) {
amountController.text += text;
_updateDisplayAmount();
}
} else {
amountController.text += text;
_updateDisplayAmount();
}
}
void _updateDisplayAmount() {
if (amountController.text.isEmpty) {
setState(() => _displayAmount = '');
return;
}
final cleanValue = amountController.text.replaceAll(RegExp(r'[^\d.]'), '');
final parts = cleanValue.split('.');
final cleanNumber =
parts.length > 2
? '${parts[0]}.${parts.sublist(1).join('')}'
: cleanValue;
if (cleanNumber.isNotEmpty) {
final amount = double.tryParse(cleanNumber);
if (amount != null) {
setState(() => _displayAmount = '${amount.toStringAsFixed(2)}');
}
}
}
void _showCustomSnackBar({
required String message,
required IconData icon,
required Color backgroundColor,
Duration duration = const Duration(seconds: 3),
}) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(
content: Row(
children: [
Container(
padding: const EdgeInsets.all(8),
decoration: BoxDecoration(
color: Colors.white.withOpacity(0.2),
borderRadius: BorderRadius.circular(8),
),
child: Icon(icon, color: Colors.white, size: 20),
),
const SizedBox(width: 12),
Expanded(
child: Text(
message,
style: GoogleFonts.inter(
fontWeight: FontWeight.w500,
color: Colors.white,
fontSize: 14,
height: 1.4,
),
),
),
],
),
backgroundColor: backgroundColor,
behavior: SnackBarBehavior.floating,
shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(12)),
margin: EdgeInsets.all(_responsiveWidth(16, context)),
duration: duration,
elevation: 8,
),
);
}
@override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: primaryColor,
body: SafeArea(
child: SlideTransition(
position: _slideAnimation,
child: FadeTransition(
opacity: _fadeAnimation,
child: Column(
children: [
_buildHeader(context),
Expanded(
child: Container(
margin: EdgeInsets.only(top: _responsiveHeight(8, context)),
decoration: BoxDecoration(
color: backgroundColor,
borderRadius: const BorderRadius.only(
topLeft: Radius.circular(32),
topRight: Radius.circular(32),
),
),
child: Padding(
padding: EdgeInsets.all(_responsiveWidth(24, context)),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Center(
child: Container(
width: _responsiveWidth(40, context),
height: 4,
decoration: BoxDecoration(
color: textSecondary.withOpacity(0.3),
borderRadius: BorderRadius.circular(2),
),
),
),
SizedBox(height: _responsiveHeight(32, context)),
_buildAmountDisplay(),
SizedBox(height: _responsiveHeight(20, context)),
_buildKeypad(context),
SizedBox(height: _responsiveHeight(24, context)),
_buildAddButton(context),
],
),
),
),
),
],
),
),
),
),
);
}
}