102 lines
3.7 KiB
Swift
102 lines
3.7 KiB
Swift
//
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// Copyright 2022 New Vector Ltd
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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import Combine
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import SwiftUI
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typealias AppLockScreenViewModelType = StateStoreViewModel<AppLockScreenViewState, AppLockScreenViewAction>
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class AppLockScreenViewModel: AppLockScreenViewModelType, AppLockScreenViewModelProtocol {
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private let appLockService: AppLockServiceProtocol
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private var actionsSubject: PassthroughSubject<AppLockScreenViewModelAction, Never> = .init()
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var actions: AnyPublisher<AppLockScreenViewModelAction, Never> {
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actionsSubject.eraseToAnyPublisher()
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}
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init(appLockService: AppLockServiceProtocol) {
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self.appLockService = appLockService
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super.init(initialViewState: AppLockScreenViewState(bindings: .init()))
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appLockService.numberOfPINAttempts
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.weakAssign(to: \.state.numberOfPINAttempts, on: self)
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.store(in: &cancellables)
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context.$viewState
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.map(\.bindings.pinCode)
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.removeDuplicates()
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.debounce(for: 0.05, scheduler: DispatchQueue.main) // Allow the last digit to be briefly shown
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.sink { [weak self] pinCode in
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guard pinCode.count == 4 else { return }
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self?.submit(pinCode)
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}
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.store(in: &cancellables)
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showForceLogoutAlertIfNeeded()
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}
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// MARK: - Public
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override func process(viewAction: AppLockScreenViewAction) {
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MXLog.info("View model: received view action: \(viewAction)")
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switch viewAction {
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case .clearPINCode:
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state.bindings.pinCode = ""
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case .forgotPIN:
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handleForgotPIN()
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}
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}
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// MARK: - Private
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private func submit(_ pinCode: String) {
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guard appLockService.unlock(with: pinCode) else {
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handleInvalidPIN()
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return
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}
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actionsSubject.send(.appUnlocked)
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}
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private func handleForgotPIN() {
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state.bindings.alertInfo = .init(id: .confirmResetPIN,
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title: L10n.screenAppLockSignoutAlertTitle,
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message: L10n.screenAppLockSignoutAlertMessage,
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primaryButton: .init(title: L10n.actionOk) { self.forceLogout() },
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secondaryButton: .init(title: L10n.actionCancel, role: .cancel, action: nil))
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}
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private func handleInvalidPIN() {
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MXLog.warning("Invalid PIN code entered.")
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showForceLogoutAlertIfNeeded()
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}
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private func showForceLogoutAlertIfNeeded() {
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if state.numberOfPINAttempts >= state.maximumAttempts {
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state.bindings.alertInfo = .init(id: .forcedLogout,
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title: L10n.screenAppLockSignoutAlertTitle,
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message: L10n.screenAppLockSignoutAlertMessage,
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primaryButton: .init(title: L10n.actionOk) { self.forceLogout() })
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}
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}
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private func forceLogout() {
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state.forcedLogoutIndicator = UserIndicator(type: .modal, title: L10n.commonSigningOut, persistent: true)
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actionsSubject.send(.forceLogout)
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}
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}
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