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+import UIKit
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+import DcCore
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+import Intents
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+
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+internal final class ChatsAndMediaViewController: UITableViewController, ProgressAlertHandler {
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+
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+ private struct SectionConfigs {
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+ let headerTitle: String?
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+ let footerTitle: String?
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+ let cells: [UITableViewCell]
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+ }
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+
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+ private enum CellTags: Int {
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+ case showEmails
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+ case blockedContacts
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+ case receiptConfirmation
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+ case exportBackup
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+ case autodel
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+ case mediaQuality
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+ case downloadOnDemand
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+ }
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+
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+ private var dcContext: DcContext
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+ internal let dcAccounts: DcAccounts
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+
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+ // MARK: - ProgressAlertHandler
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+ weak var progressAlert: UIAlertController?
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+ var progressObserver: NSObjectProtocol?
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+
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+ // MARK: - cells
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+ private lazy var showEmailsCell: UITableViewCell = {
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+ let cell = UITableViewCell(style: .value1, reuseIdentifier: nil)
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+ cell.tag = CellTags.showEmails.rawValue
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+ cell.textLabel?.text = String.localized("pref_show_emails")
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+ cell.accessoryType = .disclosureIndicator
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+ cell.detailTextLabel?.text = EmailOptionsViewController.getValString(val: dcContext.showEmails)
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+ return cell
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+ }()
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+
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+ private lazy var blockedContactsCell: UITableViewCell = {
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+ let cell = UITableViewCell(style: .default, reuseIdentifier: nil)
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+ cell.tag = CellTags.blockedContacts.rawValue
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+ cell.textLabel?.text = String.localized("pref_blocked_contacts")
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+ cell.accessoryType = .disclosureIndicator
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+ return cell
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+ }()
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+
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+ func autodelSummary() -> String {
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+ let delDeviceAfter = dcContext.getConfigInt("delete_device_after")
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+ let delServerAfter = dcContext.getConfigInt("delete_server_after")
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+ if delDeviceAfter==0 && delServerAfter==0 {
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+ return String.localized("never")
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+ } else {
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+ return String.localized("on")
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+ }
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+ }
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+
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+ private lazy var autodelCell: UITableViewCell = {
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+ let cell = UITableViewCell(style: .value1, reuseIdentifier: nil)
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+ cell.tag = CellTags.autodel.rawValue
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+ cell.textLabel?.text = String.localized("delete_old_messages")
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+ cell.accessoryType = .disclosureIndicator
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+ cell.detailTextLabel?.text = autodelSummary()
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+ return cell
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+ }()
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+
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+ private lazy var mediaQualityCell: UITableViewCell = {
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+ let cell = UITableViewCell(style: .value1, reuseIdentifier: nil)
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+ cell.tag = CellTags.mediaQuality.rawValue
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+ cell.textLabel?.text = String.localized("pref_outgoing_media_quality")
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+ cell.accessoryType = .disclosureIndicator
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+ cell.detailTextLabel?.text = MediaQualityViewController.getValString(val: dcContext.getConfigInt("media_quality"))
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+ return cell
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+ }()
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+
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+ private lazy var downloadOnDemandCell: UITableViewCell = {
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+ let cell = UITableViewCell(style: .value1, reuseIdentifier: nil)
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+ cell.tag = CellTags.downloadOnDemand.rawValue
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+ cell.textLabel?.text = String.localized("auto_download_messages")
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+ cell.accessoryType = .disclosureIndicator
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+ cell.detailTextLabel?.text = DownloadOnDemandViewController.getValString(val: dcContext.getConfigInt("download_limit"))
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+ return cell
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+ }()
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+
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+ private lazy var receiptConfirmationSwitch: UISwitch = {
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+ let switchControl = UISwitch()
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+ switchControl.isOn = dcContext.mdnsEnabled
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+ switchControl.addTarget(self, action: #selector(handleReceiptConfirmationToggle(_:)), for: .valueChanged)
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+ return switchControl
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+ }()
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+
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+ private lazy var receiptConfirmationCell: UITableViewCell = {
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+ let cell = UITableViewCell(style: .default, reuseIdentifier: nil)
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+ cell.tag = CellTags.receiptConfirmation.rawValue
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+ cell.textLabel?.text = String.localized("pref_read_receipts")
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+ cell.accessoryView = receiptConfirmationSwitch
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+ cell.selectionStyle = .none
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+ return cell
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+ }()
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+
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+ private lazy var exportBackupCell: ActionCell = {
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+ let cell = ActionCell()
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+ cell.tag = CellTags.exportBackup.rawValue
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+ cell.actionTitle = String.localized("export_backup_desktop")
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+ return cell
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+ }()
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+
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+ private lazy var sections: [SectionConfigs] = {
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+ let preferencesSection = SectionConfigs(
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+ headerTitle: nil,
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+ footerTitle: String.localized("pref_read_receipts_explain"),
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+ cells: [showEmailsCell, blockedContactsCell, mediaQualityCell, downloadOnDemandCell,
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+ autodelCell, receiptConfirmationCell]
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+ )
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+ let exportBackupSection = SectionConfigs(
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+ headerTitle: nil,
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+ footerTitle: nil,
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+ cells: [exportBackupCell]
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+ )
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+ return [preferencesSection, exportBackupSection]
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+ }()
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+
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+ init(dcAccounts: DcAccounts) {
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+ self.dcContext = dcAccounts.getSelected()
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+ self.dcAccounts = dcAccounts
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+ super.init(style: .grouped)
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+ hidesBottomBarWhenPushed = true
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+ }
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+
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+ required init?(coder _: NSCoder) {
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+ fatalError("init(coder:) has not been implemented")
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+ }
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+
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+ // MARK: - lifecycle
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+ override func viewDidLoad() {
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+ super.viewDidLoad()
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+ title = String.localized("pref_chats_and_media")
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+ tableView.rowHeight = UITableView.automaticDimension
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+ }
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+
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+ override func viewWillAppear(_ animated: Bool) {
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+ super.viewWillAppear(animated)
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+ updateCells()
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+ }
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+
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+ override func viewDidAppear(_ animated: Bool) {
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+ super.viewDidAppear(animated)
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+ addProgressAlertListener(dcAccounts: dcAccounts, progressName: dcNotificationImexProgress) { [weak self] in
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+ guard let self = self else { return }
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+
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+ self.progressAlert?.dismiss(animated: true) {
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+ let alert = UIAlertController(
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+ title: String.localized("backup_successful"),
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+ message: String.localizedStringWithFormat(String.localized("backup_successful_explain_ios"), "\(String.localized("Files")) ➔ Delta Chat"),
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+ preferredStyle: .alert)
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+ alert.addAction(UIAlertAction(title: String.localized("ok"), style: .default, handler: nil))
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+ self.present(alert, animated: true, completion: nil)
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+ }
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+ }
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+ }
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+
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+ override func viewDidDisappear(_ animated: Bool) {
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+ super.viewDidDisappear(animated)
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+ let nc = NotificationCenter.default
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+ if let backupProgressObserver = self.progressObserver {
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+ nc.removeObserver(backupProgressObserver)
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+ }
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+ }
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+
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+ // MARK: - UITableViewDelegate + UITableViewDatasource
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+ override func numberOfSections(in tableView: UITableView) -> Int {
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+ return sections.count
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+ }
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+
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+ override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
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+ return sections[section].cells.count
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+ }
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+
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+ override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
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+ return sections[indexPath.section].cells[indexPath.row]
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+ }
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+
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+ override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
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+ guard let cell = tableView.cellForRow(at: indexPath), let cellTag = CellTags(rawValue: cell.tag) else {
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+ safe_fatalError()
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+ return
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+ }
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+ tableView.deselectRow(at: indexPath, animated: false)
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+
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+ switch cellTag {
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+ case .showEmails: showClassicMail()
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+ case .blockedContacts: showBlockedContacts()
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+ case .autodel: showAutodelOptions()
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+ case .mediaQuality: showMediaQuality()
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+ case .downloadOnDemand: showDownloadOnDemand()
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+ case .receiptConfirmation: break
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+ case .exportBackup: createBackup()
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+ }
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+ }
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+
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+ override func tableView(_ tableView: UITableView, titleForHeaderInSection section: Int) -> String? {
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+ return sections[section].headerTitle
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+ }
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+
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+ override func tableView(_ tableView: UITableView, titleForFooterInSection section: Int) -> String? {
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+ return sections[section].footerTitle
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+ }
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+
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+ // MARK: - actions
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+
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+ private func createBackup() {
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+ let alert = UIAlertController(title: String.localized("pref_backup_export_explain"), message: nil, preferredStyle: .safeActionSheet)
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+ alert.addAction(UIAlertAction(title: String.localized("pref_backup_export_start_button"), style: .default, handler: { _ in
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+ self.dismiss(animated: true, completion: nil)
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+ self.startImex(what: DC_IMEX_EXPORT_BACKUP)
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+ }))
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+ alert.addAction(UIAlertAction(title: String.localized("cancel"), style: .cancel, handler: nil))
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+ present(alert, animated: true, completion: nil)
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+ }
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+
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+ @objc private func handleReceiptConfirmationToggle(_ sender: UISwitch) {
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+ dcContext.mdnsEnabled = sender.isOn
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+ }
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+
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+ // MARK: - updates
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+ private func startImex(what: Int32, passphrase: String? = nil) {
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+ let documents = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)
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+ if !documents.isEmpty {
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+ showProgressAlert(title: String.localized("export_backup_desktop"), dcContext: dcContext)
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+ DispatchQueue.main.async {
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+ self.dcAccounts.stopIo()
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+ self.dcContext.imex(what: what, directory: documents[0], passphrase: passphrase)
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+ }
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+ } else {
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+ logger.error("document directory not found")
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+ }
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+ }
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+
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+ private func updateCells() {
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+ showEmailsCell.detailTextLabel?.text = EmailOptionsViewController.getValString(val: dcContext.showEmails)
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+ mediaQualityCell.detailTextLabel?.text = MediaQualityViewController.getValString(val: dcContext.getConfigInt("media_quality"))
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+ downloadOnDemandCell.detailTextLabel?.text = DownloadOnDemandViewController.getValString(
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+ val: dcContext.getConfigInt("download_limit"))
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+ autodelCell.detailTextLabel?.text = autodelSummary()
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+ }
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+
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+ // MARK: - coordinator
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+ private func showClassicMail() {
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+ let settingsClassicViewController = EmailOptionsViewController(dcContext: dcContext)
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+ navigationController?.pushViewController(settingsClassicViewController, animated: true)
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+ }
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+
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+ private func showMediaQuality() {
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+ let mediaQualityController = MediaQualityViewController(dcContext: dcContext)
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+ navigationController?.pushViewController(mediaQualityController, animated: true)
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+ }
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+
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+ private func showDownloadOnDemand() {
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+ let downloadOnDemandViewController = DownloadOnDemandViewController(dcContext: dcContext)
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+ navigationController?.pushViewController(downloadOnDemandViewController, animated: true)
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+ }
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+
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+ private func showBlockedContacts() {
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+ let blockedContactsController = BlockedContactsViewController(dcContext: dcContext)
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+ navigationController?.pushViewController(blockedContactsController, animated: true)
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+ }
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+
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+ private func showAutodelOptions() {
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+ let settingsAutodelOverviewController = AutodelOverviewViewController(dcContext: dcContext)
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+ navigationController?.pushViewController(settingsAutodelOverviewController, animated: true)
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+ }
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+}
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B. Petersen