fill
This commit is contained in:
285
lib/features/products/presentation/pages/products_page.dart
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285
lib/features/products/presentation/pages/products_page.dart
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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 '../../../../core/di/providers.dart';
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import '../widgets/product_list_item.dart';
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/// Products list page
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/// Displays products for a specific warehouse and operation type
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class ProductsPage extends ConsumerStatefulWidget {
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final int warehouseId;
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final String warehouseName;
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final String operationType;
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const ProductsPage({
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super.key,
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required this.warehouseId,
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required this.warehouseName,
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required this.operationType,
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});
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@override
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ConsumerState<ProductsPage> createState() => _ProductsPageState();
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}
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class _ProductsPageState extends ConsumerState<ProductsPage> {
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@override
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void initState() {
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super.initState();
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// Load products when page is initialized
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Future.microtask(() {
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ref.read(productsProvider.notifier).loadProducts(
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widget.warehouseId,
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widget.warehouseName,
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widget.operationType,
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);
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});
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}
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Future<void> _onRefresh() async {
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await ref.read(productsProvider.notifier).refreshProducts();
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}
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@override
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Widget build(BuildContext context) {
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final theme = Theme.of(context);
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final textTheme = theme.textTheme;
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// Watch the products state
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final productsState = ref.watch(productsProvider);
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final products = productsState.products;
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final isLoading = productsState.isLoading;
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final error = productsState.error;
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return Scaffold(
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appBar: AppBar(
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title: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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'Products (${_getOperationTypeDisplay()})',
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style: textTheme.titleMedium,
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),
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Text(
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widget.warehouseName,
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style: textTheme.bodySmall?.copyWith(
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color: theme.colorScheme.onSurfaceVariant,
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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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IconButton(
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icon: const Icon(Icons.refresh),
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onPressed: _onRefresh,
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tooltip: 'Refresh',
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),
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],
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),
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body: _buildBody(
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isLoading: isLoading,
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error: error,
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products: products,
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theme: theme,
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),
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);
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}
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/// Build the body based on the current state
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Widget _buildBody({
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required bool isLoading,
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required String? error,
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required List products,
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required ThemeData theme,
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}) {
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return Column(
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children: [
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// Info header
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Container(
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width: double.infinity,
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padding: const EdgeInsets.all(16),
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decoration: BoxDecoration(
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color: theme.colorScheme.primaryContainer.withValues(alpha: 0.3),
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border: Border(
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bottom: BorderSide(
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color: theme.colorScheme.outline.withValues(alpha: 0.2),
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),
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),
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),
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child: Row(
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children: [
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Icon(
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widget.operationType == 'import'
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? Icons.arrow_downward
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: Icons.arrow_upward,
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color: widget.operationType == 'import'
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? Colors.green
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: Colors.orange,
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),
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const SizedBox(width: 12),
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Expanded(
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child: Column(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Text(
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_getOperationTypeDisplay(),
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style: theme.textTheme.titleSmall?.copyWith(
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fontWeight: FontWeight.bold,
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),
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),
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Text(
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'Warehouse: ${widget.warehouseName}',
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style: theme.textTheme.bodySmall?.copyWith(
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color: theme.colorScheme.onSurfaceVariant,
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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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// Content area
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Expanded(
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child: _buildContent(
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isLoading: isLoading,
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error: error,
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products: products,
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theme: 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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/// Build content based on state
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Widget _buildContent({
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required bool isLoading,
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required String? error,
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required List products,
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required ThemeData theme,
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}) {
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// Loading state
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if (isLoading && products.isEmpty) {
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return const Center(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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CircularProgressIndicator(),
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SizedBox(height: 16),
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Text('Loading products...'),
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],
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),
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);
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}
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// Error state
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if (error != null && products.isEmpty) {
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return Center(
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child: Padding(
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padding: const EdgeInsets.all(24),
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Icon(
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Icons.error_outline,
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size: 64,
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color: theme.colorScheme.error,
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),
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const SizedBox(height: 16),
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Text(
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'Error',
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style: theme.textTheme.titleLarge?.copyWith(
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color: theme.colorScheme.error,
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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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error,
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textAlign: TextAlign.center,
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style: theme.textTheme.bodyMedium,
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),
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const SizedBox(height: 24),
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FilledButton.icon(
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onPressed: _onRefresh,
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icon: const Icon(Icons.refresh),
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label: const Text('Retry'),
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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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// Empty state
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if (products.isEmpty) {
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return Center(
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child: Padding(
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padding: const EdgeInsets.all(24),
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Icon(
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Icons.inventory_2_outlined,
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size: 64,
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color: theme.colorScheme.onSurfaceVariant,
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),
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const SizedBox(height: 16),
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Text(
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'No Products',
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style: theme.textTheme.titleLarge,
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),
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const SizedBox(height: 8),
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Text(
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'No products found for this warehouse and operation type.',
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textAlign: TextAlign.center,
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style: theme.textTheme.bodyMedium?.copyWith(
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color: theme.colorScheme.onSurfaceVariant,
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),
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),
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const SizedBox(height: 24),
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FilledButton.icon(
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onPressed: _onRefresh,
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icon: const Icon(Icons.refresh),
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label: const Text('Refresh'),
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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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// Success state - show products list
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return RefreshIndicator(
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onRefresh: _onRefresh,
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child: ListView.builder(
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padding: const EdgeInsets.symmetric(vertical: 8),
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itemCount: products.length,
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itemBuilder: (context, index) {
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final product = products[index];
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return ProductListItem(
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product: product,
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onTap: () {
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// Handle product tap if needed
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// For now, just show a snackbar
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ScaffoldMessenger.of(context).showSnackBar(
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SnackBar(
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content: Text('Selected: ${product.fullName}'),
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duration: const Duration(seconds: 1),
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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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/// Get display text for operation type
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String _getOperationTypeDisplay() {
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return widget.operationType == 'import'
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? 'Import Products'
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: 'Export Products';
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}
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}
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