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84 lines
3 KiB
Swift
84 lines
3 KiB
Swift
// Copyright © 2020 Metabolist. All rights reserved.
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import Foundation
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import Combine
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import ServiceLayer
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public final class RootViewModel: ObservableObject {
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@Published public private(set) var tabNavigationViewModel: TabNavigationViewModel?
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@Published private var mostRecentlyUsedIdentityID: UUID?
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private let allIdentitiesService: AllIdentitiesService
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private let userNotificationService: UserNotificationService
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private let registerForRemoteNotifications: () -> AnyPublisher<String, Error>
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private var cancellables = Set<AnyCancellable>()
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public init(environment: AppEnvironment,
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registerForRemoteNotifications: @escaping () -> AnyPublisher<String, Error>) throws {
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allIdentitiesService = try AllIdentitiesService(environment: environment)
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userNotificationService = UserNotificationService(environment: environment)
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self.registerForRemoteNotifications = registerForRemoteNotifications
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allIdentitiesService.mostRecentlyUsedIdentityID.assign(to: &$mostRecentlyUsedIdentityID)
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newIdentitySelected(id: mostRecentlyUsedIdentityID)
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userNotificationService.isAuthorized()
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.filter { $0 }
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.zip(registerForRemoteNotifications())
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.map { $1 }
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.flatMap(allIdentitiesService.updatePushSubscriptions(deviceToken:))
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.sink { _ in } receiveValue: { _ in }
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.store(in: &cancellables)
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}
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}
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public extension RootViewModel {
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func newIdentitySelected(id: UUID?) {
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guard let id = id else {
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tabNavigationViewModel = nil
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return
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}
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let identityService: IdentityService
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do {
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identityService = try allIdentitiesService.identityService(id: id)
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} catch {
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return
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}
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identityService.observationErrors
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.receive(on: RunLoop.main)
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.map { [weak self] _ in self?.mostRecentlyUsedIdentityID }
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.sink { [weak self] in self?.newIdentitySelected(id: $0) }
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.store(in: &cancellables)
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identityService.updateLastUse()
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.sink { _ in } receiveValue: { _ in }
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.store(in: &cancellables)
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userNotificationService.isAuthorized()
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.filter { $0 }
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.zip(registerForRemoteNotifications())
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.filter { identityService.identity.lastRegisteredDeviceToken != $1 }
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.map { ($1, identityService.identity.pushSubscriptionAlerts) }
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.flatMap(identityService.createPushSubscription(deviceToken:alerts:))
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.sink { _ in } receiveValue: { _ in }
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.store(in: &cancellables)
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tabNavigationViewModel = TabNavigationViewModel(identityService: identityService)
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}
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func deleteIdentity(_ identity: Identity) {
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allIdentitiesService.deleteIdentity(identity)
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.sink { _ in } receiveValue: { _ in }
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.store(in: &cancellables)
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}
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func addIdentityViewModel() -> AddIdentityViewModel {
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AddIdentityViewModel(allIdentitiesService: allIdentitiesService)
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}
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}
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