Implement biometrics module

Riot/Modules/SetPinCode/SetupBiometrics/SetupBiometricsViewController.swift

@@ -0,0 +1,224 @@
+// File created from ScreenTemplate
+// $ createScreen.sh SetPinCode/SetupBiometrics SetupBiometrics
+/*
+ Copyright 2020 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 UIKit
+
+final class SetupBiometricsViewController: UIViewController {
+    
+    // MARK: - Constants
+    
+    private enum Constants {
+        static let aConstant: Int = 666
+    }
+    
+    // MARK: - Properties
+    
+    // MARK: Outlets
+    
+    @IBOutlet private weak var logoImageView: UIImageView!
+    @IBOutlet private weak var itemsStackView: UIStackView!
+    @IBOutlet private weak var titleLabel: UILabel!
+    @IBOutlet private weak var subtitleLabel: UILabel!
+    @IBOutlet private weak var biometricsIconImageView: UIImageView!
+    @IBOutlet private weak var enableButton: UIButton!
+    
+    // MARK: Private
+
+    private var viewModel: SetupBiometricsViewModelType!
+    private var theme: Theme!
+    private var errorPresenter: MXKErrorPresentation!
+    private var activityPresenter: ActivityIndicatorPresenter!
+
+    // MARK: - Setup
+    
+    class func instantiate(with viewModel: SetupBiometricsViewModelType) -> SetupBiometricsViewController {
+        let viewController = StoryboardScene.SetupBiometricsViewController.initialScene.instantiate()
+        viewController.viewModel = viewModel
+        viewController.theme = ThemeService.shared().theme
+        return viewController
+    }
+    
+    // MARK: - Life cycle
+    
+    override func viewDidLoad() {
+        super.viewDidLoad()
+        
+        // Do any additional setup after loading the view.
+        
+        self.setupViews()
+        self.activityPresenter = ActivityIndicatorPresenter()
+        self.errorPresenter = MXKErrorAlertPresentation()
+        
+        self.registerThemeServiceDidChangeThemeNotification()
+        self.update(theme: self.theme)
+        
+        self.viewModel.viewDelegate = self
+        
+        if #available(iOS 13.0, *) {
+            modalPresentationStyle = .fullScreen
+            isModalInPresentation = true
+        }
+
+        self.viewModel.process(viewAction: .loadData)
+    }
+
+    override var preferredStatusBarStyle: UIStatusBarStyle {
+        return self.theme.statusBarStyle
+    }
+    
+    // MARK: - Private
+    
+    private func update(theme: Theme) {
+        self.theme = theme
+        
+        self.view.backgroundColor = theme.headerBackgroundColor
+        
+        if let navigationBar = self.navigationController?.navigationBar {
+            theme.applyStyle(onNavigationBar: navigationBar)
+        }
+
+        self.titleLabel.textColor = theme.textPrimaryColor
+        self.subtitleLabel.textColor = theme.textSecondaryColor
+
+        self.enableButton.backgroundColor = theme.tintColor
+        self.enableButton.tintColor = theme.baseTextPrimaryColor
+        self.enableButton.setTitleColor(theme.baseTextPrimaryColor, for: .normal)
+    }
+    
+    private func registerThemeServiceDidChangeThemeNotification() {
+        NotificationCenter.default.addObserver(self, selector: #selector(themeDidChange), name: .themeServiceDidChangeTheme, object: nil)
+    }
+    
+    @objc private func themeDidChange() {
+        self.update(theme: ThemeService.shared().theme)
+    }
+    
+    private func setupViews() {
+        self.title = ""
+    }
+    
+    private func showSkipButton() {
+        self.navigationItem.rightBarButtonItem = MXKBarButtonItem(title: VectorL10n.skip, style: .plain) { [weak self] in
+            self?.skipCancelButtonAction()
+        }
+    }
+    
+    private func showCancelButton() {
+        self.navigationItem.rightBarButtonItem = MXKBarButtonItem(title: VectorL10n.cancel, style: .plain) { [weak self] in
+            self?.skipCancelButtonAction()
+        }
+    }
+    
+    private func hideSkipCancelButton() {
+        self.navigationItem.rightBarButtonItem = nil
+    }
+
+    private func render(viewState: SetupBiometricsViewState) {
+        switch viewState {
+        case .setupAfterLogin:
+            renderSetupAfterLogin()
+        case .setupFromSettings:
+            renderSetupFromSettings()
+        case .unlock:
+            renderUnlock()
+        case .confirmToDisable:
+            renderConfirmToDisable()
+        case .cantUnlocked:
+            renderCantUnlocked()
+        }
+    }
+    
+    private func renderSetupAfterLogin() {
+        showSkipButton()
+        
+        guard let biometricsName = viewModel.localizedBiometricsName() else { return }
+        self.titleLabel.text = VectorL10n.biometricsSetupTitleX(biometricsName)
+        self.subtitleLabel.text = VectorL10n.biometricsSetupSubtitle
+        self.biometricsIconImageView.image = viewModel.biometricsIcon()
+        self.enableButton.setTitle(VectorL10n.biometricsSetupEnableButtonTitleX(biometricsName), for: .normal)
+    }
+    
+    private func renderSetupFromSettings() {
+        showCancelButton()
+        
+        guard let biometricsName = viewModel.localizedBiometricsName() else { return }
+        self.titleLabel.text = VectorL10n.biometricsSetupTitleX(biometricsName)
+        self.subtitleLabel.text = VectorL10n.biometricsSetupSubtitle
+        self.biometricsIconImageView.image = viewModel.biometricsIcon()
+        self.enableButton.setTitle(VectorL10n.biometricsSetupEnableButtonTitleX(biometricsName), for: .normal)
+    }
+    
+    private func renderUnlock() {
+        hideSkipCancelButton()
+        
+        self.logoImageView.isHidden = false
+        //  hide all items but the logo
+        self.itemsStackView.isHidden = true
+        
+        self.viewModel.process(viewAction: .unlock)
+    }
+    
+    private func renderConfirmToDisable() {
+        showCancelButton()
+        
+        guard let biometricsName = viewModel.localizedBiometricsName() else { return }
+        self.titleLabel.text = VectorL10n.biometricsDesetupTitleX(biometricsName)
+        self.subtitleLabel.text = VectorL10n.biometricsDesetupSubtitle
+        self.biometricsIconImageView.image = viewModel.biometricsIcon()
+        self.enableButton.setTitle(VectorL10n.biometricsDesetupDisableButtonTitleX(biometricsName), for: .normal)
+    }
+    
+    private func renderCantUnlocked() {
+        guard let biometricsName = viewModel.localizedBiometricsName() else { return }
+        
+        let controller = UIAlertController(title: VectorL10n.biometricsCantUnlockedAlertTitle,
+                                           message: VectorL10n.biometricsCantUnlockedAlertMessageX(biometricsName, biometricsName),
+                                           preferredStyle: .alert)
+        
+        let resetAction = UIAlertAction(title: VectorL10n.biometricsCantUnlockedAlertMessageLogin, style: .default) { (_) in
+            self.viewModel.process(viewAction: .cantUnlockedAlertResetAction)
+        }
+        
+        let retryAction = UIAlertAction(title: VectorL10n.biometricsCantUnlockedAlertMessageRetry, style: .cancel) { (_) in
+            self.viewModel.process(viewAction: .unlock)
+        }
+        
+        controller.addAction(resetAction)
+        controller.addAction(retryAction)
+        self.present(controller, animated: true, completion: nil)
+    }
+    
+    // MARK: - Actions
+
+    @IBAction private func enableButtonAction(_ sender: Any) {
+        self.viewModel.process(viewAction: .enableDisableTapped)
+    }
+
+    private func skipCancelButtonAction() {
+        self.viewModel.process(viewAction: .skipOrCancel)
+    }
+}
+
+
+// MARK: - SetupBiometricsViewModelViewDelegate
+extension SetupBiometricsViewController: SetupBiometricsViewModelViewDelegate {
+
+    func setupBiometricsViewModel(_ viewModel: SetupBiometricsViewModelType, didUpdateViewState viewSate: SetupBiometricsViewState) {
+        self.render(viewState: viewSate)
+    }
+}