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8b94550c25
This is a copy from SettingsKeyBackupTableViewSection. We need to get the current status of the key backup to be able to display right actions.
147 lines
5.4 KiB
Swift
147 lines
5.4 KiB
Swift
/*
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Copyright 2021 New Vector Ltd
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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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http://www.apache.org/licenses/LICENSE-2.0
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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 UIKit
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final class SettingsSecureBackupViewModel: SettingsSecureBackupViewModelType {
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// MARK: - Properties
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weak var viewDelegate: SettingsSecureBackupViewModelViewDelegate?
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// MARK: Private
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private let keyBackup: MXKeyBackup
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init(keyBackup: MXKeyBackup) {
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self.keyBackup = keyBackup
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self.registerKeyBackupVersionDidChangeStateNotification()
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}
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private func registerKeyBackupVersionDidChangeStateNotification() {
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NotificationCenter.default.addObserver(self, selector: #selector(keyBackupDidStateChange), name: NSNotification.Name.mxKeyBackupDidStateChange, object: self.keyBackup)
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}
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@objc private func keyBackupDidStateChange() {
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self.checkKeyBackupState()
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}
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func process(viewAction: SettingsSecureBackupViewAction) {
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guard let viewDelegate = self.viewDelegate else {
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return
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}
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switch viewAction {
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case .load:
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viewDelegate.settingsSecureBackupViewModel(self, didUpdateViewState: .checkingBackup)
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self.checkKeyBackupState()
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case .setup:
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viewDelegate.settingsSecureBackupViewModelShowKeyBackupSetup(self)
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case .restoreFromKeyBackup(let keyBackupVersion):
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viewDelegate.settingsSecureBackupViewModel(self, showKeyBackupRecover: keyBackupVersion)
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case .confirmDeleteKeyBackup(let keyBackupVersion):
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viewDelegate.settingsSecureBackupViewModel(self, showKeyBackupDeleteConfirm: keyBackupVersion)
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case .deleteKeyBackup(let keyBackupVersion):
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self.deleteKeyBackupVersion(keyBackupVersion)
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}
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}
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// MARK: - Private
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private func checkKeyBackupState() {
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// Check homeserver update in background
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self.keyBackup.forceRefresh(nil, failure: nil)
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if let keyBackupVersion = self.keyBackup.keyBackupVersion {
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self.keyBackup.trust(for: keyBackupVersion, onComplete: { [weak self] (keyBackupVersionTrust) in
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guard let sself = self else {
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return
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}
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sself.computeState(withBackupVersionTrust: keyBackupVersionTrust)
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})
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} else {
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computeState()
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}
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}
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private func computeState(withBackupVersionTrust keyBackupVersionTrust: MXKeyBackupVersionTrust? = nil) {
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var viewState: SettingsSecureBackupViewState?
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switch self.keyBackup.state {
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case MXKeyBackupStateUnknown,
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MXKeyBackupStateCheckingBackUpOnHomeserver:
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viewState = .checkingBackup
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case MXKeyBackupStateDisabled, MXKeyBackupStateEnabling:
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viewState = .noBackup
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case MXKeyBackupStateNotTrusted:
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guard let keyBackupVersion = self.keyBackup.keyBackupVersion, let keyBackupVersionTrust = keyBackupVersionTrust else {
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return
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}
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viewState = .backupNotTrusted(keyBackupVersion, keyBackupVersionTrust)
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case MXKeyBackupStateReadyToBackUp:
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guard let keyBackupVersion = self.keyBackup.keyBackupVersion, let keyBackupVersionTrust = keyBackupVersionTrust else {
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return
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}
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viewState = .backup(keyBackupVersion, keyBackupVersionTrust)
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case MXKeyBackupStateWillBackUp, MXKeyBackupStateBackingUp:
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guard let keyBackupVersion = self.keyBackup.keyBackupVersion, let keyBackupVersionTrust = keyBackupVersionTrust else {
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return
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}
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// Get the backup progress before updating the state
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self.keyBackup.backupProgress { [weak self] (progress) in
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guard let sself = self else {
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return
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}
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sself.viewDelegate?.settingsSecureBackupViewModel(sself, didUpdateViewState: .backupAndRunning(keyBackupVersion, keyBackupVersionTrust, progress))
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}
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default:
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break
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}
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if let vviewState = viewState {
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self.viewDelegate?.settingsSecureBackupViewModel(self, didUpdateViewState: vviewState)
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}
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}
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private func deleteKeyBackupVersion(_ keyBackupVersion: MXKeyBackupVersion) {
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guard let keyBackupVersionVersion = keyBackupVersion.version else {
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return
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}
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self.viewDelegate?.settingsSecureBackupViewModel(self, didUpdateNetworkRequestViewState: .loading)
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self.keyBackup.deleteVersion(keyBackupVersionVersion, success: { [weak self] () in
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guard let sself = self else {
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return
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}
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sself.viewDelegate?.settingsSecureBackupViewModel(sself, didUpdateNetworkRequestViewState: .loaded)
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}, failure: { [weak self] error in
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guard let sself = self else {
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return
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}
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sself.viewDelegate?.settingsSecureBackupViewModel(sself, didUpdateNetworkRequestViewState: .error(error))
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})
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}
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}
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