Files
letro-ios/ElementX/Sources/Screens/AppLock/AppLockScreen/AppLockScreenViewModel.swift
Doug b6ba38cb19 Implement AppLockScreen as per the designs. (#1925)
Fix a bug in the unlock flow
2023-10-20 17:35:57 +01:00

82 lines
3.0 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 AppLockScreenViewModelType = StateStoreViewModel<AppLockScreenViewState, AppLockScreenViewAction>
class AppLockScreenViewModel: AppLockScreenViewModelType, AppLockScreenViewModelProtocol {
private let appLockService: AppLockServiceProtocol
private var actionsSubject: PassthroughSubject<AppLockScreenViewModelAction, Never> = .init()
var actions: AnyPublisher<AppLockScreenViewModelAction, Never> {
actionsSubject.eraseToAnyPublisher()
}
init(appLockService: AppLockServiceProtocol) {
self.appLockService = appLockService
super.init(initialViewState: AppLockScreenViewState(bindings: .init()))
}
// MARK: - Public
override func process(viewAction: AppLockScreenViewAction) {
MXLog.info("View model: received view action: \(viewAction)")
switch viewAction {
case .submitPINCode:
guard appLockService.unlock(with: state.bindings.pinCode) else {
handleInvalidPIN()
return
}
actionsSubject.send(.appUnlocked)
case .clearPINCode:
state.bindings.pinCode = ""
case .forgotPIN:
handleForgotPIN()
}
}
// MARK: - Private
private func handleForgotPIN() {
state.bindings.alertInfo = .init(id: .confirmResetPIN,
title: L10n.screenAppLockSignoutAlertTitle,
message: L10n.screenAppLockSignoutAlertMessage,
primaryButton: .init(title: L10n.actionOk, action: forceSignOut),
secondaryButton: .init(title: L10n.actionCancel, role: .cancel, action: nil))
}
private func handleInvalidPIN() {
MXLog.warning("Invalid PIN code entered.")
state.numberOfPINAttempts += 1
if state.numberOfPINAttempts == 3 {
state.bindings.alertInfo = .init(id: .forceSignOut,
title: L10n.screenAppLockSignoutAlertTitle,
message: L10n.screenAppLockSignoutAlertMessage,
primaryButton: .init(title: L10n.actionOk, action: nil))
forceSignOut()
}
}
private func forceSignOut() {
// To be implemented.
}
}