45 lines
1.5 KiB
Swift
45 lines
1.5 KiB
Swift
// Copyright © 2020 Metabolist. All rights reserved.
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import Foundation
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import Combine
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class NotificationTypesPreferencesViewModel: ObservableObject {
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@Published var pushSubscriptionAlerts: PushSubscription.Alerts
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@Published var alertItem: AlertItem?
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private let identityService: IdentityService
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private var cancellables = Set<AnyCancellable>()
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init(identityService: IdentityService) {
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self.identityService = identityService
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pushSubscriptionAlerts = identityService.identity.pushSubscriptionAlerts
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identityService.$identity
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.map(\.pushSubscriptionAlerts)
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.dropFirst()
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.removeDuplicates()
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.assign(to: &$pushSubscriptionAlerts)
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$pushSubscriptionAlerts
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.dropFirst()
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.removeDuplicates()
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.sink { [weak self] in self?.update(alerts: $0) }
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.store(in: &cancellables)
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}
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}
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private extension NotificationTypesPreferencesViewModel {
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func update(alerts: PushSubscription.Alerts) {
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guard alerts != identityService.identity.pushSubscriptionAlerts else { return }
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identityService.updatePushSubscription(alerts: alerts)
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.sink { [weak self] in
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guard let self = self, case let .failure(error) = $0 else { return }
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self.alertItem = AlertItem(error: error)
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self.pushSubscriptionAlerts = self.identityService.identity.pushSubscriptionAlerts
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} receiveValue: { _ in }
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.store(in: &cancellables)
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}
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}
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