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import StoreKit
@Observable
final class TipStoreViewModel {
var products: [Product] = []
var isLoading = false
var errorMessage: String?
private let productIDs = [
"net.cleberg.hutch.tip.small",
"net.cleberg.hutch.tip.medium",
"net.cleberg.hutch.tip.large"
]
func loadProducts() async {
isLoading = true
defer { isLoading = false }
do {
let fetched = try await Product.products(for: productIDs)
// Sort by price ascending to maintain small/medium/large order
products = fetched.sorted { $0.price < $1.price }
} catch {
errorMessage = error.localizedDescription
}
}
func purchase(_ product: Product) async {
do {
let result = try await product.purchase()
switch result {
case .success(let verification):
if case .verified(let transaction) = verification {
await transaction.finish()
}
case .userCancelled, .pending:
break
@unknown default:
break
}
} catch {
errorMessage = error.localizedDescription
}
}
}
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