inventory_mobile/lib/screens/admin/supplier/supplier.dart
2025-12-15 15:35:35 +08:00

354 lines
14 KiB
Dart

import 'package:flutter/material.dart';
import 'package:flutter_slidable/flutter_slidable.dart';
import 'package:inventory_system/services/supplier_service.dart';
import 'package:inventory_system/screens/admin/supplier/supplier_form.dart';
import 'package:inventory_system/screens/bottom_nav_bar.dart';
import 'package:inventory_system/screens/nav_bar.dart';
import 'package:inventory_system/screens/title_bar.dart';
class SupplierScreen extends StatefulWidget {
const SupplierScreen({super.key});
@override
State<SupplierScreen> createState() => _SupplierScreenState();
}
class _SupplierScreenState extends State<SupplierScreen> {
int _selectedIndex = 0;
final SupplierService _supplierService = SupplierService();
late Future<List<dynamic>> _suppliersFuture;
List<dynamic> _allSuppliers = [];
List<dynamic> _filteredSuppliers = [];
final TextEditingController _searchController = TextEditingController();
@override
void initState() {
super.initState();
_suppliersFuture = _fetchSuppliers();
_searchController.addListener(_onSearchChanged);
}
Future<List<dynamic>> _fetchSuppliers() async {
try {
final suppliers = await _supplierService.fetchSuppliers();
// Sort suppliers alphabetically by company name
suppliers.sort((a, b) {
final nameA = a['supplierCompName'] as String? ?? '';
final nameB = b['supplierCompName'] as String? ?? '';
return nameA.toLowerCase().compareTo(nameB.toLowerCase());
});
if (mounted) {
setState(() {
_allSuppliers = suppliers;
_filteredSuppliers = suppliers;
});
}
return suppliers;
} catch (e) {
if (mounted) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text('Failed to load suppliers: $e')),
);
}
rethrow;
}
}
@override
void dispose() {
_searchController.removeListener(_onSearchChanged);
_searchController.dispose();
super.dispose();
}
void _onSearchChanged() {
final query = _searchController.text.toLowerCase();
setState(() {
_filteredSuppliers = _allSuppliers.where((supplier) {
final name = supplier['supplierCompName'].toString().toLowerCase();
final address = supplier['supplierAddress'].toString().toLowerCase();
return name.contains(query) || address.contains(query);
}).toList();
});
}
void _handleDelete(int supplierId) async {
try {
await _supplierService.deleteSupplier(supplierId);
ScaffoldMessenger.of(context).showSnackBar(
const SnackBar(content: Text('Supplier deleted successfully')),
);
_fetchSuppliers(); // Refresh the list
} catch (e) {
if (mounted) {
ScaffoldMessenger.of(context).showSnackBar(
SnackBar(content: Text('Failed to delete supplier: $e')),
);
}
}
}
void _confirmDelete(int supplierId, String supplierName) {
showDialog(
context: context,
builder: (context) => AlertDialog(
title: const Text('Delete Supplier'),
content: Text('Are you sure you want to delete $supplierName?'),
actions: [
TextButton(
onPressed: () => Navigator.pop(context),
child: const Text('Cancel'),
),
TextButton(
onPressed: () {
Navigator.pop(context);
_handleDelete(supplierId);
},
child: const Text('Delete', style: TextStyle(color: Colors.red)),
),
],
),
);
}
@override
Widget build(BuildContext context) {
return Scaffold(
backgroundColor: const Color(0xFFF5F5F7),
appBar: const TitleBar(title: 'Supplier'),
drawer: const NavBar(isAdmin: true, selectedScreen: AppScreen.supplier),
body: Padding(
padding: const EdgeInsets.all(16.0),
child: Column(
children: [
Row(
children: [
ElevatedButton.icon(
onPressed: () {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) => const SupplierFormScreen(),
),
).then((_) => _fetchSuppliers());
},
icon: const Icon(Icons.add, size: 18),
label: const Text('Add Supplier'),
style: ElevatedButton.styleFrom(
backgroundColor: Colors.purple.shade100,
foregroundColor: Colors.black87,
elevation: 0,
padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 12),
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(12),
),
),
),
const SizedBox(width: 12),
Expanded(
child: TextField(
controller: _searchController,
decoration: InputDecoration(
hintText: 'Search',
hintStyle: TextStyle(color: Colors.grey.shade400),
prefixIcon: const Icon(Icons.search),
suffixIcon: _searchController.text.isNotEmpty
? IconButton(
icon: const Icon(Icons.clear),
onPressed: () => _searchController.clear(),
)
: null,
filled: true,
fillColor: Colors.white,
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(12),
borderSide: BorderSide.none,
),
contentPadding: const EdgeInsets.symmetric(horizontal: 16),
),
),
),
],
),
const SizedBox(height: 16),
Expanded(
child: RefreshIndicator(
onRefresh: _fetchSuppliers,
child: FutureBuilder<List<dynamic>>(
future: _suppliersFuture,
builder: (context, snapshot) {
if (snapshot.connectionState == ConnectionState.waiting) {
return const Center(child: CircularProgressIndicator());
}
if (snapshot.hasError) {
return Center(
child: Text(
'Error: ${snapshot.error}',
textAlign: TextAlign.center,
style: const TextStyle(color: Colors.red),
),
);
}
if (_filteredSuppliers.isEmpty) {
return Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Icon(Icons.search_off, size: 64, color: Colors.grey.shade400),
const SizedBox(height: 16),
Text(
'No suppliers found',
style: TextStyle(fontSize: 16, color: Colors.grey.shade600),
),
],
),
);
}
return ListView.builder(
itemCount: _filteredSuppliers.length,
itemBuilder: (context, index) {
final supplier = _filteredSuppliers[index];
return Padding(
padding: const EdgeInsets.only(bottom: 12),
child: Slidable(
key: Key(supplier['supplierId'].toString()),
endActionPane: ActionPane(
motion: const ScrollMotion(),
children: [
SlidableAction(
onPressed: (context) {
Navigator.push(
context,
MaterialPageRoute(
builder: (context) =>
SupplierFormScreen(supplier: supplier),
),
).then((_) => _fetchSuppliers());
},
backgroundColor: Colors.blue,
foregroundColor: Colors.white,
icon: Icons.edit,
label: 'Edit',
),
SlidableAction(
onPressed: (context) => _confirmDelete(
supplier['supplierId'],
supplier['supplierCompName'],
),
backgroundColor: Colors.red,
foregroundColor: Colors.white,
icon: Icons.delete,
label: 'Delete',
borderRadius: const BorderRadius.horizontal(
right: Radius.circular(16)),
),
],
),
child: Container(
padding: const EdgeInsets.all(16),
decoration: BoxDecoration(
color: Colors.white,
borderRadius: BorderRadius.circular(16),
border: Border.all(
color: Colors.grey.shade300, width: 1),
boxShadow: [
BoxShadow(
color: Colors.grey.withOpacity(0.05),
blurRadius: 4,
offset: const Offset(0, 2),
),
],
),
child: Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Row(
mainAxisAlignment:
MainAxisAlignment.spaceBetween,
children: [
Flexible(
child: Text(
supplier['supplierCompName'] ?? 'N/A',
style: const TextStyle(
fontSize: 16,
fontWeight: FontWeight.w600,
color: Colors.black87,
),
),
),
Text(
supplier['supplierPhoneNo'] ?? 'N/A',
style: TextStyle(
fontSize: 13,
fontWeight: FontWeight.w500,
color: Colors.grey.shade600,
),
),
],
),
const SizedBox(height: 8),
Text(
supplier['supplierAddress'] ??
'No address provided',
style: TextStyle(
fontSize: 12,
color: Colors.grey.shade600,
height: 1.4,
),
),
const SizedBox(height: 8),
Row(
mainAxisAlignment:
MainAxisAlignment.spaceBetween,
children: [
Flexible(
child: Text(
supplier['supplierPIC'] ?? 'N/A',
style: TextStyle(
fontSize: 12,
color: Colors.grey.shade600,
),
),
),
Text(
supplier['supplierEmail'] ??
'No email provided',
style: const TextStyle(
fontSize: 12,
color: Colors.blue,
fontStyle: FontStyle.italic),
),
],
),
],
),
),
),
);
},
);
},
),
),
),
],
),
),
bottomNavigationBar: BottomNavBar(
selectedIndex: _selectedIndex,
onItemTapped: (index) {
if (index == 0) {
Navigator.pop(context);
} else {
setState(() {
_selectedIndex = index;
});
}
},
),
);
}
}