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213
lib/presentation/pos/widgets/discount_sheet.dart
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213
lib/presentation/pos/widgets/discount_sheet.dart
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import 'package:flutter/material.dart';
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import 'package:flutter/services.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/utils/formatters.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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Future<void> showLineDiscountSheet(
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BuildContext context,
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WidgetRef ref,
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CartLine line,
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) {
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return _show(
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context: context,
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title: line.product.name,
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subtitle: 'Line value ${Formatters.money(line.grossAmount)}',
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current: line.discount,
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onApply: (d) => ref
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.read(cartControllerProvider.notifier)
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.applyLineDiscount(line.product.id, d),
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);
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}
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Future<void> showBillDiscountSheet(BuildContext context, WidgetRef ref) {
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final cart = ref.read(cartControllerProvider);
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return _show(
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context: context,
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title: 'Bill discount',
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subtitle: 'Subtotal ${Formatters.money(cart.subtotal)}',
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current: cart.billDiscount,
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onApply: (d) =>
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ref.read(cartControllerProvider.notifier).applyBillDiscount(d),
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);
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}
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Future<void> _show({
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required BuildContext context,
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required String title,
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required String subtitle,
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required Discount current,
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required ValueChanged<Discount> onApply,
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}) {
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return showModalBottomSheet<void>(
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context: context,
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isScrollControlled: true,
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backgroundColor: Colors.transparent,
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builder: (_) => _DiscountSheet(
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title: title,
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subtitle: subtitle,
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current: current,
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onApply: onApply,
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),
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);
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}
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class _DiscountSheet extends StatefulWidget {
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const _DiscountSheet({
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required this.title,
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required this.subtitle,
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required this.current,
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required this.onApply,
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});
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final String title;
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final String subtitle;
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final Discount current;
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final ValueChanged<Discount> onApply;
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@override
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State<_DiscountSheet> createState() => _DiscountSheetState();
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}
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class _DiscountSheetState extends State<_DiscountSheet> {
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late DiscountType _type =
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widget.current.type == DiscountType.none
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? DiscountType.percentage
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: widget.current.type;
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late final TextEditingController _value = TextEditingController(
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text: widget.current.isActive
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? widget.current.value.toStringAsFixed(0)
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: '',
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);
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@override
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void dispose() {
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_value.dispose();
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super.dispose();
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}
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void _apply() {
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final v = double.tryParse(_value.text.trim()) ?? 0;
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widget.onApply(
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v <= 0 ? Discount.none : Discount(type: _type, value: v),
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);
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Navigator.of(context).pop();
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}
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@override
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Widget build(BuildContext context) {
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return Padding(
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padding: EdgeInsets.only(
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bottom: MediaQuery.viewInsetsOf(context).bottom,
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),
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child: Container(
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padding: const EdgeInsets.all(AppSpacing.xxl),
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decoration: const BoxDecoration(
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color: AppColors.surface,
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borderRadius:
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BorderRadius.vertical(top: Radius.circular(AppRadius.xxl)),
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),
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child: Column(mainAxisSize: MainAxisSize.min, children: [
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Container(
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width: 40,
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height: 4,
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decoration: BoxDecoration(
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color: AppColors.border,
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borderRadius: AppRadius.brPill,
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),
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),
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const SizedBox(height: AppSpacing.xl),
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Text(widget.title,
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style: const TextStyle(fontSize: 18, fontWeight: FontWeight.w700)),
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const SizedBox(height: 2),
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Text(widget.subtitle,
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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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const SizedBox(height: AppSpacing.xxl),
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SegmentedButton<DiscountType>(
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segments: const [
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ButtonSegment(
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value: DiscountType.percentage,
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label: Text('Percentage'),
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icon: Icon(Icons.percent_rounded, size: 17),
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),
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ButtonSegment(
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value: DiscountType.flat,
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label: Text('Flat amount'),
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icon: Icon(Icons.currency_rupee_rounded, size: 17),
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),
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],
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selected: {_type},
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onSelectionChanged: (s) => setState(() => _type = s.first),
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),
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const SizedBox(height: AppSpacing.xl),
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TextField(
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controller: _value,
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autofocus: true,
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keyboardType: const TextInputType.numberWithOptions(decimal: true),
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inputFormatters: [
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FilteringTextInputFormatter.allow(RegExp(r'^\d*\.?\d{0,2}')),
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],
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style: const TextStyle(fontSize: 24, fontWeight: FontWeight.w700),
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textAlign: TextAlign.center,
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decoration: InputDecoration(
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hintText: '0',
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prefixText: _type == DiscountType.flat ? '₹ ' : null,
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suffixText: _type == DiscountType.percentage ? '%' : null,
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),
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onSubmitted: (_) => _apply(),
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),
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const SizedBox(height: AppSpacing.lg),
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Wrap(
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spacing: AppSpacing.sm,
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children: (_type == DiscountType.percentage
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? const [5, 10, 15, 20, 25]
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: const [10, 20, 50, 100, 200])
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.map((v) => ActionChip(
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label: Text(_type == DiscountType.percentage
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? '$v%'
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: '₹$v'),
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onPressed: () =>
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setState(() => _value.text = v.toString()),
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))
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.toList(),
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),
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const SizedBox(height: AppSpacing.xxl),
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Row(children: [
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Expanded(
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child: PrimaryButton(
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label: 'Remove',
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tone: ButtonTone.neutral,
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onPressed: () {
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widget.onApply(Discount.none);
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Navigator.of(context).pop();
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},
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),
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),
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const SizedBox(width: AppSpacing.md),
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Expanded(
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flex: 2,
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child: PrimaryButton(
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label: 'Apply discount',
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icon: Icons.check_rounded,
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onPressed: _apply,
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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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