second commit
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156
lib/presentation/sync/providers/sync_controller.dart
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156
lib/presentation/sync/providers/sync_controller.dart
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import 'package:flutter_riverpod/flutter_riverpod.dart';
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import '../../../app/providers.dart';
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import '../../../domain/entities/shift_report.dart';
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import '../../../domain/entities/sync_event.dart';
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import '../../auth/providers/auth_controller.dart';
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import '../../pos/providers/catalog_providers.dart';
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/// Progress of a catalogue pull.
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sealed class ImportState {
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const ImportState();
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}
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class ImportIdle extends ImportState {
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const ImportIdle();
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}
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class ImportRunning extends ImportState {
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const ImportRunning(this.progress, this.stage);
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final double progress;
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final String stage;
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}
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class ImportDone extends ImportState {
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const ImportDone(this.event);
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final SyncEvent event;
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}
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class ImportFailed extends ImportState {
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const ImportFailed(this.message);
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final String message;
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}
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/// Bumped after every successful import so catalogue providers refetch.
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final catalogueVersionProvider = StateProvider<int>((ref) => 0);
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/// Whether the terminal has products to sell. The POS is gated on this.
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final catalogueReadyProvider = Provider<bool>((ref) {
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ref.watch(catalogueVersionProvider);
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return ref.watch(syncRepositoryProvider).hasCatalogue;
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});
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final lastImportAtProvider = Provider<DateTime?>((ref) {
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ref.watch(catalogueVersionProvider);
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return ref.watch(syncRepositoryProvider).lastImportAt;
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});
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class CatalogueImportController extends StateNotifier<ImportState> {
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CatalogueImportController(this._ref) : super(const ImportIdle());
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final Ref _ref;
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Future<bool> run() async {
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if (state is ImportRunning) return false;
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state = const ImportRunning(0, 'Starting…');
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final event = await _ref.read(syncRepositoryProvider).importCatalogue(
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onProgress: (progress, stage) {
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if (mounted) state = ImportRunning(progress, stage);
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},
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);
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if (event.status == SyncStatus.synced) {
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// Force every catalogue-backed provider to refetch.
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_ref.read(catalogueVersionProvider.notifier).state++;
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_ref.invalidate(allProductsProvider);
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_ref.invalidate(visibleProductsProvider);
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_ref.invalidate(categoryCountsProvider);
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_ref.invalidate(lowStockProductsProvider);
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state = ImportDone(event);
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return true;
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}
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state = ImportFailed(event.error ?? 'Import failed.');
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return false;
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}
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void reset() => state = const ImportIdle();
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}
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final catalogueImportProvider =
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StateNotifierProvider<CatalogueImportController, ImportState>(
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(ref) => CatalogueImportController(ref),
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);
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// ------------------------------------------------------------------ Events
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/// Bumped whenever the event log changes.
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final syncVersionProvider = StateProvider<int>((ref) => 0);
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final syncEventsProvider = Provider<List<SyncEvent>>((ref) {
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ref.watch(syncVersionProvider);
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ref.watch(catalogueVersionProvider);
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return ref.watch(syncRepositoryProvider).events;
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});
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final hasUnsyncedProvider = Provider<bool>((ref) {
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ref.watch(syncVersionProvider);
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ref.watch(catalogueVersionProvider);
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return ref.watch(syncRepositoryProvider).hasUnsyncedEvents;
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});
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/// Today's takings, recomputed from local sales on every change.
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final shiftReportProvider = Provider<ShiftReport>((ref) {
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ref.watch(syncVersionProvider);
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final session = ref.watch(cashierSessionProvider);
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final user = ref.watch(currentUserProvider);
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return ref.watch(syncRepositoryProvider).buildShiftReport(
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businessDate: DateTime.now(),
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terminalId: session.terminalId,
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cashierName: user?.name ?? session.name,
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);
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});
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/// Drives the push button and the sign-out dialog.
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class ReportPushController extends StateNotifier<bool> {
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ReportPushController(this._ref) : super(false);
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final Ref _ref;
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/// Pushes today's report. Returns the resulting event so the caller can
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/// tell the cashier whether it landed.
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Future<SyncEvent> pushToday() async {
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state = true;
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try {
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final report = _ref.read(shiftReportProvider);
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final event =
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await _ref.read(syncRepositoryProvider).pushShiftReport(report);
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_ref.read(syncVersionProvider.notifier).state++;
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return event;
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} finally {
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if (mounted) state = false;
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}
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}
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Future<SyncEvent> retry(String eventId) async {
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state = true;
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try {
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final event = await _ref.read(syncRepositoryProvider).retry(eventId);
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_ref.read(syncVersionProvider.notifier).state++;
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return event;
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} finally {
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if (mounted) state = false;
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}
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}
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}
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final reportPushProvider =
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StateNotifierProvider<ReportPushController, bool>(
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(ref) => ReportPushController(ref),
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);
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233
lib/presentation/sync/widgets/sign_out_dialog.dart
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233
lib/presentation/sync/widgets/sign_out_dialog.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 'package:go_router/go_router.dart';
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import '../../../core/router/app_router.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/utils/formatters.dart';
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import '../../../core/widgets/primary_button.dart';
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import '../../../domain/entities/sync_event.dart';
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import '../../auth/providers/auth_controller.dart';
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import '../../pos/providers/cart_controller.dart';
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import '../providers/sync_controller.dart';
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/// End-of-shift flow.
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///
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/// The day's takings are pushed here — the second and last moment this
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/// terminal needs a connection. Signing out without pushing is allowed, but
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/// the report stays queued locally rather than being discarded.
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Future<void> showSignOutDialog(BuildContext context, WidgetRef ref) {
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return showDialog<void>(
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context: context,
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barrierDismissible: false,
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builder: (_) => const _SignOutDialog(),
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);
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}
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class _SignOutDialog extends ConsumerStatefulWidget {
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const _SignOutDialog();
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@override
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ConsumerState<_SignOutDialog> createState() => _SignOutDialogState();
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}
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class _SignOutDialogState extends ConsumerState<_SignOutDialog> {
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SyncEvent? _result;
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void _finish() {
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ref.read(cartControllerProvider.notifier).reset();
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ref.read(authControllerProvider.notifier).signOut();
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Navigator.of(context).pop();
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context.go(AppRoutes.login);
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}
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Future<void> _pushThenFinish() async {
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final event = await ref.read(reportPushProvider.notifier).pushToday();
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if (!mounted) return;
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setState(() => _result = event);
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if (event.status == SyncStatus.synced) {
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await Future<void>.delayed(const Duration(milliseconds: 700));
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if (mounted) _finish();
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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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final report = ref.watch(shiftReportProvider);
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final cart = ref.watch(cartControllerProvider);
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final pushing = ref.watch(reportPushProvider);
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final failed = _result?.status == SyncStatus.failed;
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return AlertDialog(
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title: const Text('End shift'),
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contentPadding: const EdgeInsets.fromLTRB(
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AppSpacing.xxl,
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AppSpacing.lg,
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AppSpacing.xxl,
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AppSpacing.sm,
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),
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content: SizedBox(
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width: 420,
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child: SingleChildScrollView(
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child: Column(
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mainAxisSize: MainAxisSize.min,
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crossAxisAlignment: CrossAxisAlignment.stretch,
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children: [
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if (cart.isNotEmpty)
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_Banner(
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icon: Icons.warning_amber_rounded,
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color: AppColors.warning,
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background: AppColors.warningSurface,
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message: 'The current bill has ${cart.lineCount} item(s) '
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'and will be cleared. Park it first if you need it.',
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),
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if (report.isEmpty)
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const _Banner(
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icon: Icons.info_outline_rounded,
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color: AppColors.textSecondary,
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background: AppColors.surfaceAlt,
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message: 'No sales were recorded today, so there is nothing '
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'to push.',
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)
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else ...[
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const Text(
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"Today's takings",
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style: TextStyle(
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fontSize: 13,
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fontWeight: FontWeight.w600,
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color: AppColors.textSecondary,
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),
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),
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const SizedBox(height: AppSpacing.sm),
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_row('Bills', '${report.billCount}'),
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_row('Items sold', report.itemCount.toStringAsFixed(0)),
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_row('Gross sales', Formatters.money(report.grossSales)),
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_row('GST collected', Formatters.money(report.taxCollected)),
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_row('Average basket',
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Formatters.money(report.averageBasket)),
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],
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if (failed) ...[
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const SizedBox(height: AppSpacing.md),
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_Banner(
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icon: Icons.wifi_off_rounded,
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color: AppColors.danger,
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background: AppColors.dangerSurface,
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message: _result?.error ??
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'The push failed. The report is still saved on this '
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'terminal and can be retried from Events.',
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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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actionsPadding: const EdgeInsets.fromLTRB(
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AppSpacing.xxl,
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0,
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AppSpacing.xxl,
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AppSpacing.lg,
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),
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actions: [
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// Wrap keeps three actions from overflowing a narrow dialog.
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Wrap(
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alignment: WrapAlignment.end,
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spacing: AppSpacing.sm,
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runSpacing: AppSpacing.sm,
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children: [
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TextButton(
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onPressed: pushing ? null : () => Navigator.of(context).pop(),
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child: const Text('Cancel'),
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),
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TextButton(
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onPressed: pushing ? null : _finish,
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style: TextButton.styleFrom(
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foregroundColor: AppColors.textSecondary,
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),
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child: Text(
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report.isEmpty ? 'Sign out' : 'Sign out without pushing',
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),
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),
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if (!report.isEmpty)
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SizedBox(
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width: 190,
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child: PrimaryButton(
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label: failed ? 'Retry push' : 'Push & sign out',
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icon: Icons.cloud_upload_rounded,
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busy: pushing,
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onPressed: _pushThenFinish,
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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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Widget _row(String label, String value) => Padding(
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padding: const EdgeInsets.symmetric(vertical: 3),
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child: Row(
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children: [
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Expanded(
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child: Text(
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label,
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style: const TextStyle(
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fontSize: 13.5,
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color: AppColors.textSecondary,
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),
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),
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),
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Text(
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value,
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style: const TextStyle(
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fontSize: 13.5,
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fontWeight: FontWeight.w700,
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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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class _Banner extends StatelessWidget {
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const _Banner({
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required this.icon,
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required this.color,
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required this.background,
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required this.message,
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});
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final IconData icon;
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final Color color;
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final Color background;
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final String message;
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@override
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Widget build(BuildContext context) {
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return Container(
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margin: const EdgeInsets.only(bottom: AppSpacing.md),
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padding: const EdgeInsets.all(AppSpacing.md),
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decoration: BoxDecoration(
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color: background,
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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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Icon(icon, size: 18, color: color),
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const SizedBox(width: AppSpacing.sm),
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Expanded(
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child: Text(
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message,
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style: TextStyle(fontSize: 12.5, color: color, 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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