104 lines
3.4 KiB
Swift
104 lines
3.4 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 TabNavigationViewModel: ObservableObject {
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@Published public private(set) var identity: Identity
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@Published public private(set) var recentIdentities = [Identity]()
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@Published public var timeline = Timeline.home
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@Published public private(set) var timelinesAndLists = Timeline.nonLists
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@Published public var presentingSecondaryNavigation = false
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@Published public var alertItem: AlertItem?
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public var selectedTab: Tab? = .timelines
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private let identification: Identification
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private var cancellables = Set<AnyCancellable>()
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public init(identification: Identification) {
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self.identification = identification
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identity = identification.identity
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identification.$identity.dropFirst().assign(to: &$identity)
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identification.service.recentIdentitiesObservation()
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.assignErrorsToAlertItem(to: \.alertItem, on: self)
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.assign(to: &$recentIdentities)
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identification.service.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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public 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 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 identification.service.isAuthorized {
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identification.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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identification.service.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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identification.service.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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identification.service.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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identification.service.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 viewModel(timeline: Timeline) -> StatusListViewModel {
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StatusListViewModel(statusListService: identification.service.service(timeline: timeline))
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}
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}
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public 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: Identifiable {
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public var id: Self { self }
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}
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