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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,53 @@ | ||
| import SwiftUI | ||
| import Combine | ||
| import protocol Yosemite.POSItem | ||
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| final class CartViewModel: ObservableObject { | ||
| let cartSubmissionPublisher: AnyPublisher<[CartItem], Never> | ||
| private let cartSubmissionSubject: PassthroughSubject<[CartItem], Never> = .init() | ||
| // TODO: Handle "add more to cart" | ||
|
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| @Published private(set) var itemsInCart: [CartItem] = [] | ||
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| private let orderStage: PointOfSaleDashboardViewModel.OrderStage = .building | ||
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| var canDeleteItemsFromCart: Bool { | ||
| orderStage != .finalizing | ||
| } | ||
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| init() { | ||
| cartSubmissionPublisher = cartSubmissionSubject.eraseToAnyPublisher() | ||
| } | ||
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| func addItemToCart(_ item: POSItem) { | ||
| let cartItem = CartItem(id: UUID(), item: item, quantity: 1) | ||
| itemsInCart.append(cartItem) | ||
| } | ||
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| func removeItemFromCart(_ cartItem: CartItem) { | ||
| itemsInCart.removeAll(where: { $0.id == cartItem.id }) | ||
| } | ||
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| func removeAllItemsFromCart() { | ||
| itemsInCart.removeAll() | ||
| } | ||
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| var itemToScrollToWhenCartUpdated: CartItem? { | ||
| return itemsInCart.last | ||
| } | ||
|
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| var itemsInCartLabel: String? { | ||
| switch itemsInCart.count { | ||
| case 0: | ||
| return nil | ||
| default: | ||
| return String.pluralize(itemsInCart.count, | ||
| singular: "%1$d item", | ||
| plural: "%1$d items") | ||
| } | ||
| } | ||
|
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| func submitCart() { | ||
| cartSubmissionSubject.send(itemsInCart) | ||
| } | ||
| } |
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