369 lines
11 KiB
Dart
369 lines
11 KiB
Dart
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/constants/app_constants.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/theme/app_typography.dart';
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import '../../../core/utils/extensions.dart';
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import '../../../core/utils/formatters.dart';
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import '../../../core/widgets/empty_state.dart';
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import '../../../core/widgets/primary_button.dart';
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import '../../../domain/entities/cart.dart';
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import '../providers/cart_controller.dart';
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import 'cart_line_tile.dart';
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import 'discount_sheet.dart';
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/// Always-visible bill on the right of the dashboard.
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class BillingPanel extends ConsumerWidget {
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const BillingPanel({super.key, this.inSheet = false});
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final bool inSheet;
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@override
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Widget build(BuildContext context, WidgetRef ref) {
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final cart = ref.watch(cartControllerProvider);
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final controller = ref.read(cartControllerProvider.notifier);
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return Container(
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color: AppColors.surface,
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child: Column(children: [
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_Header(cart: cart, inSheet: inSheet),
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const Divider(height: 1),
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Expanded(
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child: cart.isEmpty
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? const EmptyState(
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title: 'Cart is empty',
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message: 'Scan a barcode or tap a product to begin.',
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emoji: '🛒',
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compact: true,
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)
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: ListView.separated(
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padding: const EdgeInsets.symmetric(
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horizontal: AppSpacing.lg,
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vertical: AppSpacing.md,
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),
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itemCount: cart.lines.length,
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separatorBuilder: (_, __) =>
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const SizedBox(height: AppSpacing.sm),
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itemBuilder: (_, i) {
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// Newest line first mirrors what the cashier just scanned.
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final line = cart.lines[cart.lines.length - 1 - i];
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return CartLineTile(
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key: ValueKey(line.product.id),
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line: line,
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onIncrement: () => controller.increment(line.product.id),
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onDecrement: () => controller.decrement(line.product.id),
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onRemove: () => controller.removeLine(line.product.id),
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onDiscount: () =>
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showLineDiscountSheet(context, ref, line),
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);
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},
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),
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),
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if (cart.isNotEmpty) _Summary(cart: cart),
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_Actions(cart: cart),
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]),
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);
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}
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}
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class _Header extends ConsumerWidget {
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const _Header({required this.cart, required this.inSheet});
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final Cart cart;
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final bool inSheet;
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@override
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Widget build(BuildContext context, WidgetRef ref) {
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final controller = ref.read(cartControllerProvider.notifier);
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return Padding(
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padding: const EdgeInsets.fromLTRB(
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AppSpacing.xl,
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AppSpacing.lg,
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AppSpacing.md,
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AppSpacing.lg,
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),
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child: Row(children: [
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Text('Cart', style: context.text.headlineSmall),
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const SizedBox(width: AppSpacing.sm),
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if (cart.isNotEmpty)
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Container(
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padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 2),
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decoration: BoxDecoration(
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color: AppColors.primarySurface,
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borderRadius: AppRadius.brPill,
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),
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child: Text(
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'${cart.lineCount}',
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style: const TextStyle(
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color: AppColors.primary,
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fontWeight: FontWeight.w800,
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fontSize: 13,
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),
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),
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),
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const Spacer(),
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if (controller.canUndo)
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IconButton(
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tooltip: 'Undo (F8)',
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onPressed: controller.undo,
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icon: const Icon(Icons.undo_rounded, size: 19),
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color: AppColors.textSecondary,
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),
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if (cart.isNotEmpty) ...[
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TextButton.icon(
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onPressed: () async {
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await controller.park();
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ref.invalidate(parkedBillsProvider);
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if (context.mounted) context.showSnack('Bill parked');
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},
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icon: const Icon(Icons.pause_circle_outline_rounded, size: 17),
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label: const Text('Park'),
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style: TextButton.styleFrom(foregroundColor: AppColors.warning),
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),
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TextButton(
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onPressed: controller.clear,
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style: TextButton.styleFrom(foregroundColor: AppColors.danger),
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child: const Text('Clear'),
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),
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],
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if (inSheet)
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IconButton(
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onPressed: () => Navigator.of(context).pop(),
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icon: const Icon(Icons.close_rounded),
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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 _Summary extends ConsumerWidget {
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const _Summary({required this.cart});
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final Cart cart;
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@override
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Widget build(BuildContext context, WidgetRef ref) {
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final controller = ref.read(cartControllerProvider.notifier);
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return Container(
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padding: const EdgeInsets.fromLTRB(
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AppSpacing.xl,
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AppSpacing.lg,
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AppSpacing.xl,
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AppSpacing.md,
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),
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decoration: const BoxDecoration(
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border: Border(top: BorderSide(color: AppColors.divider)),
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),
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child: Column(children: [
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if (cart.pointsEarned > 0)
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Container(
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width: double.infinity,
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margin: const EdgeInsets.only(bottom: AppSpacing.md),
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padding: const EdgeInsets.symmetric(
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horizontal: AppSpacing.md,
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vertical: AppSpacing.sm + 2,
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),
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decoration: BoxDecoration(
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color: AppColors.successSurface,
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borderRadius: AppRadius.brSm,
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),
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child: Row(children: [
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const Icon(Icons.stars_rounded,
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size: 16, color: AppColors.success),
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const SizedBox(width: AppSpacing.sm),
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Text(
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'This sale earns +${cart.pointsEarned} pts',
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style: const TextStyle(
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color: AppColors.success,
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fontWeight: FontWeight.w700,
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fontSize: 13,
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),
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),
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]),
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),
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_Row(label: 'Subtotal', value: Formatters.money(cart.subtotal)),
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if (cart.membershipDiscountAmount > 0)
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_Row(
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label: '${cart.customer!.tier.label} discount',
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value: '-${Formatters.money(cart.membershipDiscountAmount)}',
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valueColor: AppColors.success,
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),
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_Row(
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label: 'GST',
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value: Formatters.money(cart.taxAmount),
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hint: cart.taxBreakdown.keys.isEmpty
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? null
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: cart.taxBreakdown.keys
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.map((r) => '${(r * 100).toStringAsFixed(0)}%')
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.join(', '),
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),
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InkWell(
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onTap: () => showBillDiscountSheet(context, ref),
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borderRadius: AppRadius.brXs,
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child: _Row(
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label: 'Discount',
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value: cart.manualBillDiscountAmount > 0
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? '-${Formatters.money(cart.manualBillDiscountAmount)}'
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: '-${Formatters.money(0)}',
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valueColor: cart.manualBillDiscountAmount > 0
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? AppColors.success
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: null,
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trailingIcon: Icons.edit_outlined,
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),
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),
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if (cart.maxRedeemablePoints > 0 || cart.pointsRedeemed > 0)
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InkWell(
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onTap: () => cart.pointsRedeemed > 0
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? controller.clearRedemption()
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: controller.redeemAllPoints(),
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borderRadius: AppRadius.brXs,
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child: _Row(
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label: cart.pointsRedeemed > 0
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? 'Points redeemed (${cart.pointsRedeemed})'
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: 'Redeem ${cart.maxRedeemablePoints} points',
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value: cart.pointsRedeemed > 0
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? '-${Formatters.money(cart.loyaltyRedemptionValue)}'
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: 'Apply',
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valueColor: AppColors.primary,
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trailingIcon: cart.pointsRedeemed > 0
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? Icons.close_rounded
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: Icons.add_rounded,
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),
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),
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if (cart.roundOff != 0)
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_Row(
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label: 'Round Off',
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value: '${cart.roundOff >= 0 ? '+' : ''}'
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'${Formatters.money(cart.roundOff)}',
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),
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const Padding(
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padding: EdgeInsets.symmetric(vertical: AppSpacing.md),
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child: Divider(height: 1),
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),
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Row(
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mainAxisAlignment: MainAxisAlignment.spaceBetween,
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children: [
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Text('Total', style: context.text.titleLarge),
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Text(
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Formatters.money(cart.grandTotal),
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style: AppTypography.money(26, color: AppColors.primary),
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),
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],
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),
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if (cart.totalSavings > 0)
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Padding(
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padding: const EdgeInsets.only(top: AppSpacing.xs),
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child: Align(
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alignment: Alignment.centerRight,
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child: Text(
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'You saved ${Formatters.money(cart.totalSavings)}',
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style: const TextStyle(
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color: AppColors.success,
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fontSize: 12,
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fontWeight: FontWeight.w600,
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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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class _Row extends StatelessWidget {
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const _Row({
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required this.label,
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required this.value,
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this.valueColor,
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this.hint,
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this.trailingIcon,
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});
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final String label;
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final String value;
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final Color? valueColor;
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final String? hint;
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final IconData? trailingIcon;
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@override
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Widget build(BuildContext context) {
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return Padding(
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padding: const EdgeInsets.symmetric(vertical: AppSpacing.xs + 2),
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child: Row(children: [
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Text(label,
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style: const TextStyle(
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fontSize: 14,
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color: AppColors.textSecondary,
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)),
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if (hint != null) ...[
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const SizedBox(width: AppSpacing.xs),
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Text('($hint)',
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style: const TextStyle(
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fontSize: 11.5,
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color: AppColors.textTertiary,
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)),
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],
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const Spacer(),
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Text(
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value,
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style: AppTypography.money(
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14.5,
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weight: FontWeight.w600,
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color: valueColor ?? AppColors.textPrimary,
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),
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),
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if (trailingIcon != null) ...[
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const SizedBox(width: AppSpacing.xs),
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Icon(trailingIcon, size: 14, color: AppColors.textTertiary),
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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 _Actions extends ConsumerWidget {
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const _Actions({required this.cart});
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final Cart cart;
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@override
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Widget build(BuildContext context, WidgetRef ref) {
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final enabled = cart.isNotEmpty;
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return Container(
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padding: const EdgeInsets.fromLTRB(
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AppSpacing.xl,
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AppSpacing.sm,
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AppSpacing.xl,
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AppSpacing.xl,
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),
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child: PrimaryButton(
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label: 'CHARGE',
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large: true,
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onPressed: enabled ? () => context.push(AppRoutes.payment) : null,
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trailing: enabled
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? Text(
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Formatters.money(cart.grandTotal),
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style: AppTypography.money(21, color: Colors.white),
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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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