86 lines
2.5 KiB
Swift
86 lines
2.5 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 TabNavigationViewModel: ObservableObject {
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@Published private(set) var identity: Identity
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@Published private(set) var recentIdentities = [Identity]()
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@Published var presentingSecondaryNavigation = false
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@Published var alertItem: AlertItem?
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var selectedTab: Tab? = .timelines
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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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identity = identityService.identity
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identityService.$identity.dropFirst().assign(to: &$identity)
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identityService.recentIdentitiesObservation()
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.assignErrorsToAlertItem(to: \.alertItem, on: self)
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.assign(to: &$recentIdentities)
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}
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}
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extension TabNavigationViewModel {
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func refreshIdentity() {
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if identityService.isAuthorized {
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identityService.verifyCredentials()
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.assignErrorsToAlertItem(to: \.alertItem, on: self)
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.sink(receiveValue: {})
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.store(in: &cancellables)
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if identity.preferences.useServerPostingReadingPreferences {
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identityService.refreshServerPreferences()
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.assignErrorsToAlertItem(to: \.alertItem, on: self)
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.sink(receiveValue: {})
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.store(in: &cancellables)
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}
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}
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identityService.refreshInstance()
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.assignErrorsToAlertItem(to: \.alertItem, on: self)
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.sink(receiveValue: {})
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.store(in: &cancellables)
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}
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func secondaryNavigationViewModel() -> SecondaryNavigationViewModel {
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SecondaryNavigationViewModel(identityService: identityService)
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}
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}
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extension TabNavigationViewModel {
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enum Tab: CaseIterable {
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case timelines
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case search
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case notifications
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case messages
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}
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}
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extension TabNavigationViewModel.Tab {
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var title: String {
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switch self {
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case .timelines: return "Timelines"
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case .search: return "Search"
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case .notifications: return "Notifications"
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case .messages: return "Messages"
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}
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}
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var systemImageName: String {
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switch self {
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case .timelines: return "newspaper"
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case .search: return "magnifyingglass"
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case .notifications: return "bell"
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case .messages: return "envelope"
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}
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}
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}
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extension TabNavigationViewModel.Tab: Identifiable {
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var id: Self { self }
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}
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