140 lines
4.9 KiB
Swift
140 lines
4.9 KiB
Swift
/*
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Copyright 2019-2024 New Vector Ltd.
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SPDX-License-Identifier: AGPL-3.0-only
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Please see LICENSE in the repository root for full details.
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*/
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import UIKit
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final class SettingsKeyBackupViewModel: SettingsKeyBackupViewModelType {
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// MARK: - Properties
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weak var viewDelegate: SettingsKeyBackupViewModelViewDelegate?
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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: SettingsKeyBackupViewAction) {
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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.settingsKeyBackupViewModel(self, didUpdateViewState: .checkingBackup)
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self.checkKeyBackupState()
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case .create:
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viewDelegate.settingsKeyBackupViewModelShowKeyBackupSetup(self)
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case .restore(let keyBackupVersion):
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viewDelegate.settingsKeyBackup(self, showKeyBackupRecover: keyBackupVersion)
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case .confirmDelete(let keyBackupVersion):
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viewDelegate.settingsKeyBackup(self, showKeyBackupDeleteConfirm: keyBackupVersion)
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case .delete(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: SettingsKeyBackupViewState?
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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?.settingsKeyBackupViewModel(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?.settingsKeyBackupViewModel(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?.settingsKeyBackupViewModel(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?.settingsKeyBackupViewModel(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?.settingsKeyBackupViewModel(sself, didUpdateNetworkRequestViewState: .error(error))
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})
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}
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}
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