143 lines
4.4 KiB
Swift
143 lines
4.4 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 Mastodon
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import Services
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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 timeline = Timeline.home
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@Published private(set) var timelinesAndLists = Timeline.nonLists
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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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identityService.listsObservation()
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.map { Timeline.nonLists + $0 }
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.assignErrorsToAlertItem(to: \.alertItem, on: self)
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.assign(to: &$timelinesAndLists)
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}
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}
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extension TabNavigationViewModel {
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var timelineSubtitle: String {
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switch timeline {
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case .home, .list:
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return identity.handle
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case .local, .federated, .tag:
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return identity.instance?.uri ?? ""
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}
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}
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func title(timeline: Timeline) -> String {
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switch timeline {
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case .home:
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return NSLocalizedString("timelines.home", comment: "")
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case .local:
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return NSLocalizedString("timelines.local", comment: "")
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case .federated:
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return NSLocalizedString("timelines.federated", comment: "")
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case let .list(list):
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return list.title
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case let .tag(tag):
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return "#" + tag
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}
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}
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func systemImageName(timeline: Timeline) -> String {
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switch timeline {
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case .home: return "house"
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case .local: return "person.3"
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case .federated: return "globe"
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case .list: return "scroll"
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case .tag: return "number"
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}
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}
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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 { _ in }
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.store(in: &cancellables)
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identityService.refreshLists()
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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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identityService.refreshFilters()
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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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if identity.preferences.useServerPostingReadingPreferences {
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identityService.refreshServerPreferences()
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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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}
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}
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identityService.refreshInstance()
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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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}
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func secondaryNavigationViewModel() -> SecondaryNavigationViewModel {
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SecondaryNavigationViewModel(identityService: identityService)
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}
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func viewModel(timeline: Timeline) -> StatusListViewModel {
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StatusListViewModel(statusListService: identityService.service(timeline: timeline))
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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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