239 lines
8.5 KiB
Dart
239 lines
8.5 KiB
Dart
import 'package:flutter/material.dart';
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import '../../../core/theme/app_colors.dart';
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import '../../../core/theme/app_dimens.dart';
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import '../../../core/theme/app_layout.dart';
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import '../../../core/widgets/primary_button.dart';
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import '../../auth/providers/auth_controller.dart';
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import '../../sync/providers/sync_controller.dart';
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import '../providers/navigation_provider.dart';
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import '../widgets/category_chips.dart';
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import '../widgets/customer_bar.dart';
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import '../widgets/product_grid.dart';
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import '../widgets/scan_toast.dart';
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import '../widgets/search_field.dart';
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/// Catalogue half of the terminal.
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///
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/// Gated on the catalogue import: with no products loaded there is nothing to
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/// sell, so the cashier is sent to the import step instead of a broken grid.
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class PosView extends ConsumerWidget {
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const PosView({super.key, required this.layout, required this.searchFocus});
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final PosLayout layout;
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final FocusNode searchFocus;
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@override
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Widget build(BuildContext context, WidgetRef ref) {
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if (!ref.watch(catalogueReadyProvider)) {
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return const _CatalogueRequired();
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}
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final pad = layout.contentPadding;
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// Keep the last grid row clear of the floating bill button.
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final bottomInset = layout.billingIsSheet
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? AppSizes.buttonHeightLarge + AppSpacing.xxxl
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: AppSpacing.xxl;
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return Stack(
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children: [
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Column(
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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Padding(
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padding:
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EdgeInsets.fromLTRB(pad, AppSpacing.lg, pad, AppSpacing.md),
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child: PosSearchField(focusNode: searchFocus),
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),
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CategoryChips(horizontalPadding: pad),
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const SizedBox(height: AppSpacing.md),
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Expanded(
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child: ProductGrid(
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horizontalPadding: pad,
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tileExtent: layout.gridTileExtent,
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bottomPadding: bottomInset,
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),
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),
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],
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),
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Positioned(
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left: 0,
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right: 0,
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bottom: bottomInset,
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child: const Align(
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alignment: Alignment.bottomCenter,
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child: ScanToast(),
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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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/// Shown until the catalogue has been pulled onto this terminal.
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class _CatalogueRequired extends ConsumerWidget {
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const _CatalogueRequired();
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@override
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Widget build(BuildContext context, WidgetRef ref) {
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final state = ref.watch(catalogueImportProvider);
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final running = state is ImportRunning;
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// Pulling the catalogue is an admin job, and a cashier has no Product
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// Import module to be sent to. Offering them a button that opens a screen
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// they cannot reach is worse than telling them who to ask.
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final cashier = ref.watch(isCashierModeProvider);
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return Center(
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child: SingleChildScrollView(
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padding: const EdgeInsets.all(AppSpacing.xxl),
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child: ConstrainedBox(
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constraints: const BoxConstraints(maxWidth: 460),
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child: Column(
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mainAxisSize: MainAxisSize.min,
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children: [
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Container(
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width: 96,
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height: 96,
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decoration: const BoxDecoration(
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color: AppColors.primarySurface,
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shape: BoxShape.circle,
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),
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child: const Icon(Icons.cloud_download_outlined,
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size: 42, color: AppColors.primary,),
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),
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const SizedBox(height: AppSpacing.xxl),
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Text(
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cashier
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? 'No products on this terminal'
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: 'Import products to start billing',
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textAlign: TextAlign.center,
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style: Theme.of(context).textTheme.headlineSmall,
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),
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const SizedBox(height: AppSpacing.sm),
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Text(
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cashier
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? 'Nothing has been imported for this shift yet. Ask an '
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'admin to sign in and pull the catalogue — once they '
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'have, sign in again and everything runs offline.'
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: 'This terminal has no catalogue yet. Pull the current '
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'products once at the start of your shift — after that '
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'everything runs offline.',
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textAlign: TextAlign.center,
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style: const TextStyle(
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fontSize: 14,
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color: AppColors.textSecondary,
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height: 1.6,
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),
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),
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const SizedBox(height: AppSpacing.xxl),
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if (!cashier && state is ImportRunning) ...[
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Text(
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state.stage,
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style: const TextStyle(
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fontSize: 13,
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color: AppColors.textSecondary,
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),
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),
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const SizedBox(height: AppSpacing.sm),
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ClipRRect(
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borderRadius: AppRadius.brPill,
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child: LinearProgressIndicator(
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value: state.progress,
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minHeight: 8,
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backgroundColor: AppColors.divider,
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valueColor: const AlwaysStoppedAnimation<Color>(
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AppColors.primary,),
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),
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),
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const SizedBox(height: AppSpacing.lg),
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],
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if (!cashier && state is ImportFailed) ...[
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Container(
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padding: const EdgeInsets.all(AppSpacing.md),
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margin: const EdgeInsets.only(bottom: AppSpacing.lg),
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decoration: const BoxDecoration(
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color: AppColors.dangerSurface,
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borderRadius: AppRadius.brSm,
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),
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child: Row(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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const Icon(Icons.wifi_off_rounded,
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color: AppColors.danger, size: 18,),
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const SizedBox(width: AppSpacing.sm),
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Expanded(
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child: Text(
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state.message,
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style: const TextStyle(
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color: AppColors.danger,
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fontSize: 13,
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height: 1.45,
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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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if (cashier)
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Container(
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padding: const EdgeInsets.all(AppSpacing.md),
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decoration: const BoxDecoration(
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color: AppColors.infoSurface,
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borderRadius: AppRadius.brSm,
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),
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child: const Row(
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crossAxisAlignment: CrossAxisAlignment.start,
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children: [
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Icon(Icons.admin_panel_settings_outlined,
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size: 18, color: AppColors.info,),
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SizedBox(width: AppSpacing.sm),
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Expanded(
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child: Text(
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'Importing the catalogue is an admin job. Nothing '
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'can be billed here until it has been done.',
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style: TextStyle(
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color: AppColors.info,
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fontSize: 13,
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height: 1.45,
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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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else ...[
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PrimaryButton(
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label: 'Import catalogue now',
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icon: Icons.cloud_download_rounded,
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large: true,
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busy: running,
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onPressed: running
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? null
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: () => ref.read(catalogueImportProvider.notifier).run(),
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),
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const SizedBox(height: AppSpacing.md),
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TextButton.icon(
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onPressed: () => ref
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.read(activeModuleProvider.notifier)
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.state = PosModule.productImport,
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icon: const Icon(Icons.open_in_new_rounded, size: 16),
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label: const Text('Open Product Import'),
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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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