Files
letro-ios/ElementX/Sources/Screens/Onboarding/IdentityConfirmationScreen/IdentityConfirmationScreenViewModel.swift

109 lines
4.2 KiB
Swift

//
// Copyright 2022 New Vector Ltd
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
import Combine
import SwiftUI
typealias IdentityConfirmationScreenViewModelType = StateStoreViewModel<IdentityConfirmationScreenViewState, IdentityConfirmationScreenViewAction>
class IdentityConfirmationScreenViewModel: IdentityConfirmationScreenViewModelType, IdentityConfirmationScreenViewModelProtocol {
private let userSession: UserSessionProtocol
private let userIndicatorController: UserIndicatorControllerProtocol
private let actionsSubject: PassthroughSubject<IdentityConfirmationScreenViewModelAction, Never> = .init()
var actionsPublisher: AnyPublisher<IdentityConfirmationScreenViewModelAction, Never> {
actionsSubject.eraseToAnyPublisher()
}
init(userSession: UserSessionProtocol, appSettings: AppSettings, userIndicatorController: UserIndicatorControllerProtocol) {
self.userSession = userSession
self.userIndicatorController = userIndicatorController
super.init(initialViewState: IdentityConfirmationScreenViewState(learnMoreURL: appSettings.encryptionURL))
userSession.sessionSecurityStatePublisher
.receive(on: DispatchQueue.main)
.sink { [weak self] state in
Task {
await self?.updateWithSessionSecurityState(state)
}
}
.store(in: &cancellables)
Task {
await updateWithSessionSecurityState(userSession.sessionSecurityStatePublisher.value)
}
}
// MARK: - Public
override func process(viewAction: IdentityConfirmationScreenViewAction) {
MXLog.info("View model: received view action: \(viewAction)")
switch viewAction {
case .otherDevice:
actionsSubject.send(.otherDevice)
case .recoveryKey:
actionsSubject.send(.recoveryKey)
case .skip:
actionsSubject.send(.skip)
case .reset:
actionsSubject.send(.reset)
case .logout:
actionsSubject.send(.logout)
}
}
// MARK: - Private
private func updateWithSessionSecurityState(_ sessionSecurityState: SessionSecurityState) async {
if sessionSecurityState.verificationState == .unknown {
showLoadingIndicator()
} else {
hideLoadingIndicator()
}
guard sessionSecurityState.verificationState == .unverified else {
return
}
var availableActions: [IdentityConfirmationScreenViewState.AvailableActions] = []
if case let .success(isOnlyDeviceLeft) = await userSession.clientProxy.isOnlyDeviceLeft(),
!isOnlyDeviceLeft {
availableActions.append(.interactiveVerification)
}
if sessionSecurityState.recoveryState == .enabled || sessionSecurityState.recoveryState == .incomplete {
availableActions.append(.recovery)
}
state.availableActions = availableActions
}
private static let loadingIndicatorIdentifier = "\(IdentityConfirmationScreenViewModel.self)-Loading"
private func showLoadingIndicator() {
userIndicatorController.submitIndicator(UserIndicator(id: Self.loadingIndicatorIdentifier,
type: .modal,
title: L10n.commonLoading,
persistent: true))
}
private func hideLoadingIndicator() {
userIndicatorController.retractIndicatorWithId(Self.loadingIndicatorIdentifier)
}
}