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213 lines
8 KiB
Swift
213 lines
8 KiB
Swift
// Copyright © 2020 Metabolist. All rights reserved.
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import Combine
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import Foundation
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import Mastodon
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import ServiceLayer
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public final class NavigationViewModel: ObservableObject {
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public let identityContext: IdentityContext
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public let navigations: AnyPublisher<Navigation, Never>
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@Published public private(set) var recentIdentities = [Identity]()
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@Published public private(set) var announcementCount: (total: Int, unread: Int) = (0, 0)
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@Published public var presentedNewStatusViewModel: NewStatusViewModel?
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@Published public var presentingSecondaryNavigation = false
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@Published public var alertItem: AlertItem?
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private let navigationsSubject = PassthroughSubject<Navigation, Never>()
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private let environment: AppEnvironment
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private var cancellables = Set<AnyCancellable>()
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public init(identityContext: IdentityContext, environment: AppEnvironment) {
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self.identityContext = identityContext
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self.environment = environment
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navigations = navigationsSubject.eraseToAnyPublisher()
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identityContext.$identity
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.sink { [weak self] _ in self?.objectWillChange.send() }
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.store(in: &cancellables)
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identityContext.service.recentIdentitiesPublisher()
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.assignErrorsToAlertItem(to: \.alertItem, on: self)
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.assign(to: &$recentIdentities)
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identityContext.service.announcementCountPublisher()
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.assignErrorsToAlertItem(to: \.alertItem, on: self)
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.assign(to: &$announcementCount)
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}
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}
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public extension NavigationViewModel {
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enum Tab: Int, CaseIterable {
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case timelines
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case explore
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case notifications
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case messages
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}
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var tabs: [Tab] {
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if identityContext.identity.authenticated {
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return Tab.allCases
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} else {
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return [.timelines, .explore]
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}
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}
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var timelines: [Timeline] {
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if identityContext.identity.authenticated {
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return Timeline.authenticatedDefaults
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} else {
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return Timeline.unauthenticatedDefaults
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}
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}
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func refreshIdentity() {
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if identityContext.identity.pending {
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identityContext.service.verifyCredentials()
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.collect()
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.map { _ in () }
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.flatMap(identityContext.service.confirmIdentity)
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.sink { _ in } receiveValue: { _ in }
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.store(in: &cancellables)
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} else if identityContext.identity.authenticated {
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identityContext.service.verifyCredentials()
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.assignErrorsToAlertItem(to: \.alertItem, on: self)
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.sink { _ in }
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.store(in: &cancellables)
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identityContext.service.refreshLists()
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.sink { _ in } receiveValue: { _ in }
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.store(in: &cancellables)
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identityContext.service.refreshFilters()
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.sink { _ in } receiveValue: { _ in }
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.store(in: &cancellables)
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identityContext.service.refreshEmojis()
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.sink { _ in } receiveValue: { _ in }
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.store(in: &cancellables)
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identityContext.service.refreshAnnouncements()
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.sink { _ in } receiveValue: { _ in }
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.store(in: &cancellables)
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if identityContext.identity.preferences.useServerPostingReadingPreferences {
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identityContext.service.refreshServerPreferences()
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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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identityContext.service.refreshInstance()
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.sink { _ in } receiveValue: { _ in }
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.store(in: &cancellables)
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}
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func navigateToProfile(id: Account.Id) {
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presentingSecondaryNavigation = false
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presentedNewStatusViewModel = nil
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navigationsSubject.send(.profile(identityContext.service.navigationService.profileService(id: id)))
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}
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func navigateToAccountSettings(instanceURI: String) {
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AccountSettingsService(instanceURI: instanceURI, environment: environment).openAccountSettings()
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.sink { _ in } receiveValue: { _ in }
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.store(in: &cancellables)
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}
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func navigate(timeline: Timeline) {
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presentingSecondaryNavigation = false
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presentedNewStatusViewModel = nil
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navigationsSubject.send(
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.collection(identityContext.service.navigationService.timelineService(timeline: timeline)))
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}
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func navigateToFollowerRequests() {
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presentingSecondaryNavigation = false
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presentedNewStatusViewModel = nil
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navigationsSubject.send(.collection(identityContext.service.service(
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accountList: .followRequests,
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titleComponents: ["follow-requests"])))
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}
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func navigateToMutedUsers() {
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presentingSecondaryNavigation = false
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presentedNewStatusViewModel = nil
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navigationsSubject.send(.collection(identityContext.service.service(
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accountList: .mutes,
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titleComponents: ["preferences.muted-users"])))
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}
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func navigateToBlockedUsers() {
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presentingSecondaryNavigation = false
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presentedNewStatusViewModel = nil
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navigationsSubject.send(.collection(identityContext.service.service(
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accountList: .blocks,
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titleComponents: ["preferences.blocked-users"])))
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}
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func navigateToURL(_ url: URL) {
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presentingSecondaryNavigation = false
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presentedNewStatusViewModel = nil
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identityContext.service.navigationService.item(url: url)
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.sink { [weak self] in self?.navigationsSubject.send($0) }
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.store(in: &cancellables)
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}
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func navigate(pushNotification: PushNotification) {
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switch pushNotification.notificationType {
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case .followRequest:
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navigateToFollowerRequests()
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default:
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identityContext.service.notificationService(pushNotification: pushNotification)
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.assignErrorsToAlertItem(to: \.alertItem, on: self)
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.sink { [weak self] in
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self?.presentingSecondaryNavigation = false
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self?.presentedNewStatusViewModel = nil
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self?.navigationsSubject.send(.notification($0))
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}
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.store(in: &cancellables)
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}
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}
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func viewModel(timeline: Timeline) -> CollectionItemsViewModel {
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CollectionItemsViewModel(
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collectionService: identityContext.service.navigationService.timelineService(timeline: timeline),
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identityContext: identityContext)
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}
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func exploreViewModel() -> ExploreViewModel {
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let exploreViewModel = ExploreViewModel(
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service: identityContext.service.exploreService(),
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identityContext: identityContext)
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exploreViewModel.refresh()
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return exploreViewModel
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}
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func notificationsViewModel(excludeTypes: Set<MastodonNotification.NotificationType>) -> CollectionItemsViewModel {
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let viewModel = CollectionItemsViewModel(
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collectionService: identityContext.service.notificationsService(excludeTypes: excludeTypes),
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identityContext: identityContext)
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if excludeTypes.isEmpty {
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viewModel.request(maxId: nil, minId: nil, search: nil)
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}
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return viewModel
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}
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func conversationsViewModel() -> CollectionViewModel {
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let conversationsViewModel = CollectionItemsViewModel(
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collectionService: identityContext.service.conversationsService(),
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identityContext: identityContext)
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conversationsViewModel.request(maxId: nil, minId: nil, search: nil)
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return conversationsViewModel
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}
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func announcementsViewModel() -> CollectionViewModel {
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CollectionItemsViewModel(
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collectionService: identityContext.service.announcementsService(),
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identityContext: identityContext)
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}
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}
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