fix
This commit is contained in:
@@ -1,169 +1,404 @@
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import 'package:flutter/material.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import '../widgets/product_selector.dart';
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import '../widgets/cart_summary.dart';
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import '../../../products/presentation/providers/products_provider.dart';
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import '../../../products/presentation/providers/selected_category_provider.dart';
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import '../../../categories/presentation/providers/categories_provider.dart';
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import '../providers/cart_provider.dart';
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import '../providers/cart_total_provider.dart';
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import '../../domain/entities/cart_item.dart';
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import '../../../../core/widgets/loading_indicator.dart';
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import '../../../../core/widgets/error_widget.dart';
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import '../../../../core/widgets/empty_state.dart';
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import '../../../../core/widgets/optimized_cached_image.dart';
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import '../../../../shared/widgets/price_display.dart';
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/// Home page - POS interface with product selector and cart
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class HomePage extends ConsumerWidget {
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/// Home page - Quick sale POS interface
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class HomePage extends ConsumerStatefulWidget {
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const HomePage({super.key});
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@override
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Widget build(BuildContext context, WidgetRef ref) {
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ConsumerState<HomePage> createState() => _HomePageState();
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}
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class _HomePageState extends ConsumerState<HomePage> {
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String _searchQuery = '';
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@override
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Widget build(BuildContext context) {
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final productsAsync = ref.watch(productsProvider);
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final categoriesAsync = ref.watch(categoriesProvider);
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final selectedCategory = ref.watch(selectedCategoryProvider);
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final cartAsync = ref.watch(cartProvider);
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final isWideScreen = MediaQuery.of(context).size.width > 600;
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final totalData = ref.watch(cartTotalProvider);
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final theme = Theme.of(context);
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return Scaffold(
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appBar: AppBar(
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title: const Text('Point of Sale'),
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actions: [
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// Cart item count badge
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cartAsync.whenOrNull(
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data: (items) => items.isNotEmpty
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? Padding(
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padding: const EdgeInsets.only(right: 16.0),
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child: Center(
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child: Badge(
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label: Text('${items.length}'),
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child: const Icon(Icons.shopping_cart),
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),
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),
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)
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: null,
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) ?? const SizedBox.shrink(),
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],
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),
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body: isWideScreen
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? Row(
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children: [
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// Product selector on left
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Expanded(
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flex: 3,
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child: ProductSelector(
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onProductTap: (product) {
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_showAddToCartDialog(context, ref, product);
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},
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),
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),
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// Divider
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const VerticalDivider(width: 1),
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// Cart on right
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const Expanded(
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flex: 2,
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child: CartSummary(),
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),
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],
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)
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: Column(
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children: [
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// Product selector on top
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Expanded(
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flex: 2,
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child: ProductSelector(
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onProductTap: (product) {
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_showAddToCartDialog(context, ref, product);
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},
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),
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),
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// Divider
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const Divider(height: 1),
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// Cart on bottom
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const Expanded(
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flex: 3,
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child: CartSummary(),
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),
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],
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),
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);
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}
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final cartItems = cartAsync.value ?? [];
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final itemCount = cartItems.length;
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void _showAddToCartDialog(
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BuildContext context,
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WidgetRef ref,
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dynamic product,
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) {
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int quantity = 1;
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return SafeArea(
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bottom: false,
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child: Scaffold(
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backgroundColor: theme.colorScheme.surfaceContainerLowest,
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showDialog(
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context: context,
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builder: (context) => StatefulBuilder(
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builder: (context, setState) => AlertDialog(
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title: const Text('Add to Cart'),
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content: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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Text(
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product.name,
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style: Theme.of(context).textTheme.titleMedium,
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),
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const SizedBox(height: 16),
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Row(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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IconButton(
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icon: const Icon(Icons.remove_circle_outline),
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onPressed: quantity > 1
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? () => setState(() => quantity--)
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: null,
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),
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Padding(
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padding: const EdgeInsets.symmetric(horizontal: 16.0),
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child: Text(
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'$quantity',
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style: Theme.of(context).textTheme.headlineSmall,
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),
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),
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IconButton(
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icon: const Icon(Icons.add_circle_outline),
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onPressed: quantity < product.stockQuantity
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? () => setState(() => quantity++)
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: null,
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),
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],
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),
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if (product.stockQuantity < 5)
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Padding(
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padding: const EdgeInsets.only(top: 8.0),
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child: Text(
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'Only ${product.stockQuantity} in stock',
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style: Theme.of(context).textTheme.bodySmall?.copyWith(
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color: Theme.of(context).colorScheme.error,
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body: Column(
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children: [
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// Search bar
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Container(
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padding: const EdgeInsets.fromLTRB(16, 12, 16, 12),
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color: theme.colorScheme.surface,
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child: TextField(
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onChanged: (value) {
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setState(() {
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_searchQuery = value;
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});
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},
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decoration: InputDecoration(
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hintText: 'Search Menu',
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prefixIcon: const Icon(Icons.search, size: 20),
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suffixIcon: _searchQuery.isNotEmpty
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? IconButton(
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icon: const Icon(Icons.clear, size: 20),
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onPressed: () {
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setState(() {
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_searchQuery = '';
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});
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},
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)
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: IconButton(
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icon: const Icon(Icons.tune, size: 20),
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onPressed: () {
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// TODO: Show filters
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},
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),
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filled: true,
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fillColor: theme.colorScheme.surfaceContainerHighest,
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contentPadding: const EdgeInsets.symmetric(vertical: 8),
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border: OutlineInputBorder(
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borderRadius: BorderRadius.circular(8),
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borderSide: BorderSide(
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color: theme.colorScheme.outline.withOpacity(0.3),
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),
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),
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enabledBorder: OutlineInputBorder(
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borderRadius: BorderRadius.circular(8),
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borderSide: BorderSide(
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color: theme.colorScheme.outline.withOpacity(0.3),
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),
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),
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focusedBorder: OutlineInputBorder(
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borderRadius: BorderRadius.circular(8),
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borderSide: BorderSide(
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color: theme.colorScheme.primary,
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width: 1.5,
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),
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),
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),
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],
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),
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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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),
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FilledButton.icon(
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onPressed: () {
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// Create cart item from product
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final cartItem = CartItem(
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productId: product.id,
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productName: product.name,
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price: product.price,
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quantity: quantity,
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imageUrl: product.imageUrl,
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addedAt: DateTime.now(),
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);
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// Add to cart
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ref.read(cartProvider.notifier).addItem(cartItem);
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// Category filter buttons
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categoriesAsync.when(
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loading: () => const SizedBox.shrink(),
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error: (_, __) => const SizedBox.shrink(),
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data: (categories) {
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if (categories.isEmpty) return const SizedBox.shrink();
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Navigator.pop(context);
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text('Added ${product.name} to cart'),
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duration: const Duration(seconds: 2),
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return Container(
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height: 75,
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padding: const EdgeInsets.symmetric(vertical: 8),
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color: theme.colorScheme.surface,
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child: ListView(
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scrollDirection: Axis.horizontal,
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padding: const EdgeInsets.symmetric(horizontal: 16),
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children: [
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// All/Favorite category
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_CategoryButton(
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icon: Icons.star,
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label: 'Favorite',
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isSelected: selectedCategory == null,
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onTap: () {
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ref
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.read(selectedCategoryProvider.notifier)
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.clearSelection();
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},
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),
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const SizedBox(width: 12),
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// Category buttons
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...categories.map(
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(category) => Padding(
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padding: const EdgeInsets.only(right: 12.0),
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child: _CategoryButton(
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icon: _getCategoryIcon(category.name),
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label: category.name,
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isSelected: selectedCategory == category.id,
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onTap: () {
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ref
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.read(selectedCategoryProvider.notifier)
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.selectCategory(category.id);
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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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icon: const Icon(Icons.add_shopping_cart),
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label: const Text('Add'),
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),
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// Products list
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Expanded(
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child: productsAsync.when(
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loading: () => const LoadingIndicator(
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message: 'Loading products...',
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),
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error: (error, stack) => ErrorDisplay(
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message: error.toString(),
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onRetry: () => ref.refresh(productsProvider),
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),
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data: (products) {
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// Filter available products
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var availableProducts =
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products.where((p) => p.isAvailable).toList();
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// Apply category filter
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if (selectedCategory != null) {
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availableProducts = availableProducts
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.where((p) => p.categoryId == selectedCategory)
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.toList();
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}
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// Apply search filter
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if (_searchQuery.isNotEmpty) {
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availableProducts = availableProducts.where((p) {
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final query = _searchQuery.toLowerCase();
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return p.name.toLowerCase().contains(query) ||
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(p.description?.toLowerCase().contains(query) ?? false);
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}).toList();
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}
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if (availableProducts.isEmpty) {
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return EmptyState(
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message: _searchQuery.isNotEmpty
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? 'No products found'
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: 'No products available',
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subMessage: _searchQuery.isNotEmpty
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? 'Try a different search term'
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: 'Add products to start selling',
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icon: Icons.inventory_2_outlined,
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);
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}
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return ListView.builder(
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padding: const EdgeInsets.all(16),
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itemCount: availableProducts.length,
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itemBuilder: (context, index) {
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final product = availableProducts[index];
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// Find if product is in cart
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final cartItem = cartItems.firstWhere(
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(item) => item.productId == product.id,
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orElse: () => CartItem(
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productId: '',
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productName: '',
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price: 0,
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quantity: 0,
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addedAt: DateTime.now(),
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),
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);
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final isInCart = cartItem.productId.isNotEmpty;
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final quantity = isInCart ? cartItem.quantity : 0;
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return _ProductListItem(
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product: product,
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quantity: quantity,
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onAdd: () => _addToCart(product),
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onIncrement: isInCart
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? () => ref
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.read(cartProvider.notifier)
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.updateQuantity(product.id, quantity + 1)
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: null,
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onDecrement: isInCart
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? () {
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if (quantity > 1) {
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ref
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.read(cartProvider.notifier)
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.updateQuantity(product.id, quantity - 1);
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} else {
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ref
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.read(cartProvider.notifier)
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.removeItem(product.id);
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}
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}
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: null,
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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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// Bottom bar
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bottomNavigationBar: itemCount > 0
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? Container(
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padding: const EdgeInsets.all(16),
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decoration: BoxDecoration(
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color: theme.colorScheme.surface,
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boxShadow: [
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BoxShadow(
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color: Colors.black.withOpacity(0.05),
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blurRadius: 10,
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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: SafeArea(
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child: FilledButton(
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onPressed: () => _proceedToCheckout(),
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style: FilledButton.styleFrom(
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backgroundColor: theme.colorScheme.primary,
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padding: const EdgeInsets.symmetric(vertical: 16),
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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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child: Row(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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children: [
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Row(
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children: [
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const SizedBox(width: 8),
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Text(
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'Proceed New Order',
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style: theme.textTheme.titleMedium?.copyWith(
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color: theme.colorScheme.onPrimary,
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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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Row(
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children: [
|
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Text(
|
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'$itemCount items',
|
||||
style: theme.textTheme.bodyMedium?.copyWith(
|
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color: theme.colorScheme.onPrimary,
|
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),
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),
|
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const SizedBox(width: 8),
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PriceDisplay(
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price: totalData.total,
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style: theme.textTheme.titleMedium?.copyWith(
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color: theme.colorScheme.onPrimary,
|
||||
fontWeight: FontWeight.bold,
|
||||
),
|
||||
),
|
||||
const SizedBox(width: 8),
|
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const Icon(Icons.arrow_forward, color: Colors.white),
|
||||
],
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
),
|
||||
)
|
||||
: null,
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
void _addToCart(dynamic product) {
|
||||
final cartItem = CartItem(
|
||||
productId: product.id,
|
||||
productName: product.name,
|
||||
price: product.price,
|
||||
quantity: 1,
|
||||
imageUrl: product.imageUrl,
|
||||
addedAt: DateTime.now(),
|
||||
);
|
||||
|
||||
ref.read(cartProvider.notifier).addItem(cartItem);
|
||||
}
|
||||
|
||||
void _proceedToCheckout() {
|
||||
// TODO: Navigate to checkout/order detail screen
|
||||
ScaffoldMessenger.of(context).showSnackBar(
|
||||
const SnackBar(
|
||||
content: Text('Proceeding to checkout...'),
|
||||
duration: Duration(seconds: 2),
|
||||
),
|
||||
);
|
||||
}
|
||||
|
||||
IconData _getCategoryIcon(String categoryName) {
|
||||
final name = categoryName.toLowerCase();
|
||||
if (name.contains('drink') || name.contains('beverage')) {
|
||||
return Icons.local_cafe;
|
||||
} else if (name.contains('food') || name.contains('meal')) {
|
||||
return Icons.restaurant;
|
||||
} else if (name.contains('dessert') || name.contains('sweet')) {
|
||||
return Icons.cake;
|
||||
} else {
|
||||
return Icons.category;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/// Category filter button
|
||||
class _CategoryButton extends StatelessWidget {
|
||||
final IconData icon;
|
||||
final String label;
|
||||
final bool isSelected;
|
||||
final VoidCallback onTap;
|
||||
|
||||
const _CategoryButton({
|
||||
required this.icon,
|
||||
required this.label,
|
||||
required this.isSelected,
|
||||
required this.onTap,
|
||||
});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
final theme = Theme.of(context);
|
||||
|
||||
return InkWell(
|
||||
onTap: onTap,
|
||||
borderRadius: BorderRadius.circular(12),
|
||||
child: Container(
|
||||
padding: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
|
||||
decoration: BoxDecoration(
|
||||
color: isSelected
|
||||
? theme.colorScheme.primaryContainer
|
||||
: theme.colorScheme.surfaceContainerHighest,
|
||||
borderRadius: BorderRadius.circular(12),
|
||||
border: Border.all(
|
||||
color: isSelected
|
||||
? theme.colorScheme.primary
|
||||
: Colors.transparent,
|
||||
width: 1.5,
|
||||
),
|
||||
),
|
||||
child: Column(
|
||||
mainAxisSize: MainAxisSize.min,
|
||||
mainAxisAlignment: MainAxisAlignment.center,
|
||||
children: [
|
||||
Icon(
|
||||
icon,
|
||||
color: isSelected
|
||||
? theme.colorScheme.primary
|
||||
: theme.colorScheme.onSurfaceVariant,
|
||||
size: 22,
|
||||
),
|
||||
const SizedBox(height: 2),
|
||||
Text(
|
||||
label,
|
||||
style: theme.textTheme.labelSmall?.copyWith(
|
||||
color: isSelected
|
||||
? theme.colorScheme.primary
|
||||
: theme.colorScheme.onSurfaceVariant,
|
||||
fontWeight: isSelected ? FontWeight.bold : FontWeight.normal,
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
@@ -171,3 +406,134 @@ class HomePage extends ConsumerWidget {
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
/// Product list item
|
||||
class _ProductListItem extends StatelessWidget {
|
||||
final dynamic product;
|
||||
final int quantity;
|
||||
final VoidCallback onAdd;
|
||||
final VoidCallback? onIncrement;
|
||||
final VoidCallback? onDecrement;
|
||||
|
||||
const _ProductListItem({
|
||||
required this.product,
|
||||
required this.quantity,
|
||||
required this.onAdd,
|
||||
this.onIncrement,
|
||||
this.onDecrement,
|
||||
});
|
||||
|
||||
@override
|
||||
Widget build(BuildContext context) {
|
||||
final theme = Theme.of(context);
|
||||
final isInCart = quantity > 0;
|
||||
|
||||
return Container(
|
||||
margin: const EdgeInsets.only(bottom: 12),
|
||||
decoration: BoxDecoration(
|
||||
color: theme.colorScheme.surface,
|
||||
borderRadius: BorderRadius.circular(16),
|
||||
border: Border.all(
|
||||
color: isInCart
|
||||
? theme.colorScheme.primary.withOpacity(0.3)
|
||||
: theme.colorScheme.outlineVariant,
|
||||
width: isInCart ? 2 : 1,
|
||||
),
|
||||
),
|
||||
child: Padding(
|
||||
padding: const EdgeInsets.all(12),
|
||||
child: Row(
|
||||
children: [
|
||||
// Product image
|
||||
RepaintBoundary(
|
||||
child: ClipRRect(
|
||||
borderRadius: BorderRadius.circular(12),
|
||||
child: product.imageUrl != null
|
||||
? OptimizedCachedImage(
|
||||
key: ValueKey('product_img_${product.id}'),
|
||||
imageUrl: product.imageUrl!,
|
||||
width: 60,
|
||||
height: 60,
|
||||
fit: BoxFit.cover,
|
||||
)
|
||||
: Container(
|
||||
width: 60,
|
||||
height: 60,
|
||||
color: theme.colorScheme.surfaceContainerHighest,
|
||||
child: Icon(
|
||||
Icons.inventory_2,
|
||||
color: theme.colorScheme.onSurfaceVariant,
|
||||
),
|
||||
),
|
||||
),
|
||||
),
|
||||
const SizedBox(width: 12),
|
||||
// Product info
|
||||
Expanded(
|
||||
child: Column(
|
||||
crossAxisAlignment: CrossAxisAlignment.start,
|
||||
children: [
|
||||
Text(
|
||||
product.name,
|
||||
style: theme.textTheme.titleMedium?.copyWith(
|
||||
fontWeight: FontWeight.bold,
|
||||
),
|
||||
maxLines: 1,
|
||||
overflow: TextOverflow.ellipsis,
|
||||
),
|
||||
const SizedBox(height: 4),
|
||||
PriceDisplay(
|
||||
price: product.price,
|
||||
style: theme.textTheme.titleMedium?.copyWith(
|
||||
fontWeight: FontWeight.bold,
|
||||
color: theme.colorScheme.primary,
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
const SizedBox(width: 12),
|
||||
// Add/quantity controls
|
||||
if (!isInCart)
|
||||
IconButton(
|
||||
onPressed: onAdd,
|
||||
icon: const Icon(Icons.add_circle),
|
||||
iconSize: 32,
|
||||
color: theme.colorScheme.primary,
|
||||
)
|
||||
else
|
||||
Container(
|
||||
decoration: BoxDecoration(
|
||||
color: theme.colorScheme.primaryContainer,
|
||||
borderRadius: BorderRadius.circular(24),
|
||||
),
|
||||
child: Row(
|
||||
children: [
|
||||
IconButton(
|
||||
onPressed: onDecrement,
|
||||
icon: const Icon(Icons.remove),
|
||||
iconSize: 20,
|
||||
color: theme.colorScheme.primary,
|
||||
),
|
||||
Text(
|
||||
'$quantity',
|
||||
style: theme.textTheme.titleMedium?.copyWith(
|
||||
fontWeight: FontWeight.bold,
|
||||
color: theme.colorScheme.primary,
|
||||
),
|
||||
),
|
||||
IconButton(
|
||||
onPressed: onIncrement,
|
||||
icon: const Icon(Icons.add),
|
||||
iconSize: 20,
|
||||
color: theme.colorScheme.primary,
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
],
|
||||
),
|
||||
),
|
||||
);
|
||||
}
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user