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