52 lines
1.2 KiB
Dart
52 lines
1.2 KiB
Dart
/// A parsed receipt row shown on the review screen.
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library;
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class LineItem {
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LineItem({
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required this.id,
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required this.name,
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required this.price,
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this.quantity,
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this.unitPrice,
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this.discount = 0,
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});
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final String id;
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final String name;
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/// Line total after any discount.
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final double price;
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final int? quantity;
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final double? unitPrice;
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/// Negative amount when a discount was folded into [price].
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final double discount;
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bool get hasDiscount => discount != 0;
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/// List price before a folded discount. Equals [price] when there is none.
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double get originalPrice {
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if (!hasDiscount) return price;
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return ((price - discount) * 100).round() / 100;
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}
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LineItem copyWith({
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String? id,
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String? name,
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double? price,
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int? quantity,
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double? unitPrice,
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double? discount,
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bool clearQuantity = false,
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}) {
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return LineItem(
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id: id ?? this.id,
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name: name ?? this.name,
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price: price ?? this.price,
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quantity: clearQuantity ? null : (quantity ?? this.quantity),
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unitPrice: clearQuantity ? null : (unitPrice ?? this.unitPrice),
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discount: discount ?? this.discount,
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);
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}
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}
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