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			347 lines
		
	
	
		
			16 KiB
		
	
	
	
		
			Swift
		
	
			
		
		
	
	
			347 lines
		
	
	
		
			16 KiB
		
	
	
	
		
			Swift
		
	
| // Copyright © 2022 Rangeproof Pty Ltd. All rights reserved.
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| 
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| import Foundation
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| import CryptoKit
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| import GRDB
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| import DifferenceKit
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| import SessionUIKit
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| import SessionMessagingKit
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| import SessionUtilitiesKit
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| import SignalCoreKit
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| 
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| class HelpViewModel: SessionTableViewModel<NoNav, HelpViewModel.Section, HelpViewModel.Section> {
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| #if DEBUG
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|     private var databaseKeyEncryptionPassword: String = ""
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| #endif
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|     
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|     // MARK: - Section
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|     
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|     public enum Section: SessionTableSection {
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|         case report
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|         case translate
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|         case feedback
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|         case faq
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|         case support
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| #if DEBUG
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|         case exportDatabase
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| #endif
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|         
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|         var style: SessionTableSectionStyle { .padding }
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|     }
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|     
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|     // MARK: - Content
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|     
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|     override var title: String { "HELP_TITLE".localized() }
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|     
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|     public override var observableTableData: ObservableData { _observableTableData }
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|     
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|     /// This is all the data the screen needs to populate itself, please see the following link for tips to help optimise
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|     /// performance https://github.com/groue/GRDB.swift#valueobservation-performance
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|     ///
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|     /// **Note:** This observation will be triggered twice immediately (and be de-duped by the `removeDuplicates`)
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|     /// this is due to the behaviour of `ValueConcurrentObserver.asyncStartObservation` which triggers it's own
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|     /// fetch (after the ones in `ValueConcurrentObserver.asyncStart`/`ValueConcurrentObserver.syncStart`)
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|     /// just in case the database has changed between the two reads - unfortunately it doesn't look like there is a way to prevent this
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|     private lazy var _observableTableData: ObservableData = ValueObservation
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|         .trackingConstantRegion { db -> [SectionModel] in
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|             return [
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|                 SectionModel(
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|                     model: .report,
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|                     elements: [
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|                         SessionCell.Info(
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|                             id: .report,
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|                             title: "HELP_REPORT_BUG_TITLE".localized(),
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|                             subtitle: "HELP_REPORT_BUG_DESCRIPTION".localized(),
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|                             rightAccessory: .highlightingBackgroundLabel(
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|                                 title: "HELP_REPORT_BUG_ACTION_TITLE".localized()
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|                             ),
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|                             onTapView: { HelpViewModel.shareLogs(targetView: $0) }
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|                         )
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|                     ]
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|                 ),
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|                 SectionModel(
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|                     model: .translate,
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|                     elements: [
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|                         SessionCell.Info(
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|                             id: .translate,
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|                             title: "HELP_TRANSLATE_TITLE".localized(),
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|                             rightAccessory: .icon(
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|                                 UIImage(systemName: "arrow.up.forward.app")?
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|                                     .withRenderingMode(.alwaysTemplate),
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|                                 size: .small
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|                             ),
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|                             onTap: {
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|                                 guard let url: URL = URL(string: "https://crowdin.com/project/session-ios") else {
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|                                     return
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|                                 }
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|                                 
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|                                 UIApplication.shared.open(url)
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|                             }
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|                         )
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|                     ]
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|                 ),
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|                 SectionModel(
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|                     model: .feedback,
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|                     elements: [
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|                         SessionCell.Info(
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|                             id: .feedback,
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|                             title: "HELP_FEEDBACK_TITLE".localized(),
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|                             rightAccessory: .icon(
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|                                 UIImage(systemName: "arrow.up.forward.app")?
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|                                     .withRenderingMode(.alwaysTemplate),
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|                                 size: .small
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|                             ),
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|                             onTap: {
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|                                 guard let url: URL = URL(string: "https://getsession.org/survey") else {
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|                                     return
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|                                 }
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|                                 
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|                                 UIApplication.shared.open(url)
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|                             }
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|                         )
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|                     ]
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|                 ),
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|                 SectionModel(
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|                     model: .faq,
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|                     elements: [
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|                         SessionCell.Info(
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|                             id: .faq,
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|                             title: "HELP_FAQ_TITLE".localized(),
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|                             rightAccessory: .icon(
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|                                 UIImage(systemName: "arrow.up.forward.app")?
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|                                     .withRenderingMode(.alwaysTemplate),
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|                                 size: .small
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|                             ),
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|                             onTap: {
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|                                 guard let url: URL = URL(string: "https://getsession.org/faq") else {
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|                                     return
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|                                 }
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|                                 
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|                                 UIApplication.shared.open(url)
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|                             }
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|                         )
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|                     ]
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|                 ),
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|                 SectionModel(
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|                     model: .support,
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|                     elements: [
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|                         SessionCell.Info(
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|                             id: .support,
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|                             title: "HELP_SUPPORT_TITLE".localized(),
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|                             rightAccessory: .icon(
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|                                 UIImage(systemName: "arrow.up.forward.app")?
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|                                     .withRenderingMode(.alwaysTemplate),
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|                                 size: .small
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|                             ),
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|                             onTap: {
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|                                 guard let url: URL = URL(string: "https://sessionapp.zendesk.com/hc/en-us") else {
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|                                     return
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|                                 }
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|                                 
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|                                 UIApplication.shared.open(url)
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|                             }
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|                         )
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|                     ]
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|                 )
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|             ]
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| #if DEBUG
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|             .appending(
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|                 SectionModel(
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|                     model: .exportDatabase,
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|                     elements: [
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|                         SessionCell.Info(
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|                             id: .support,
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|                             title: "Export Database",
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|                             rightAccessory: .icon(
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|                                 UIImage(systemName: "square.and.arrow.up.trianglebadge.exclamationmark")?
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|                                     .withRenderingMode(.alwaysTemplate),
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|                                 size: .small
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|                             ),
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|                             styling: SessionCell.StyleInfo(
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|                                 tintColor: .danger
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|                             ),
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|                             onTapView: { [weak self] view in self?.exportDatabase(view) }
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|                         )
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|                     ]
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|                 )
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|             )
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| #endif
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|         }
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|         .removeDuplicates()
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|         .handleEvents(didFail: { SNLog("[HelpViewModel] Observation failed with error: \($0)") })
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|         .publisher(in: Storage.shared)
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|         .mapToSessionTableViewData(for: self)
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|     
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|     // MARK: - Functions
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|     
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|     public static func shareLogs(
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|         viewControllerToDismiss: UIViewController? = nil,
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|         targetView: UIView? = nil,
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|         animated: Bool = true,
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|         onShareComplete: (() -> ())? = nil
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|     ) {
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|         OWSLogger.info("[Version] \(SessionApp.versionInfo)")
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|         DDLog.flushLog()
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|         
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|         let logFilePaths: [String] = AppEnvironment.shared.fileLogger.logFileManager.sortedLogFilePaths
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|         
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|         guard
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|             let latestLogFilePath: String = logFilePaths.first,
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|             let viewController: UIViewController = CurrentAppContext().frontmostViewController()
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|         else { return }
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|         
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|         let showShareSheet: () -> () = {
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|             let shareVC = UIActivityViewController(
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|                 activityItems: [ URL(fileURLWithPath: latestLogFilePath) ],
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|                 applicationActivities: nil
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|             )
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|             shareVC.completionWithItemsHandler = { _, _, _, _ in onShareComplete?() }
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|             
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|             if UIDevice.current.isIPad {
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|                 shareVC.excludedActivityTypes = []
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|                 shareVC.popoverPresentationController?.permittedArrowDirections = (targetView != nil ? [.up] : [])
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|                 shareVC.popoverPresentationController?.sourceView = (targetView ?? viewController.view)
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|                 shareVC.popoverPresentationController?.sourceRect = (targetView ?? viewController.view).bounds
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|             }
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|             viewController.present(shareVC, animated: animated, completion: nil)
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|         }
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|         
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|         guard let viewControllerToDismiss: UIViewController = viewControllerToDismiss else {
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|             showShareSheet()
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|             return
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|         }
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| 
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|         viewControllerToDismiss.dismiss(animated: animated) {
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|             showShareSheet()
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|         }
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|     }
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|     
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| #if DEBUG
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|     private func exportDatabase(_ targetView: UIView?) {
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|         let generatedPassword: String = UUID().uuidString
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|         self.databaseKeyEncryptionPassword = generatedPassword
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|         
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|         self.transitionToScreen(
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|             ConfirmationModal(
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|                 info: ConfirmationModal.Info(
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|                     title: "Export Database",
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|                     body: .input(
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|                         explanation: NSAttributedString(
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|                             string: """
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|                             Sharing the database and key together is dangerous!
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| 
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|                             We've generated a secure password for you but feel free to provide your own (we will show the generated password again after exporting)
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| 
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|                             This password will be used to encrypt the database decryption key and will be exported alongside the database
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|                             """
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|                         ),
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|                         placeholder: "Enter a password",
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|                         initialValue: generatedPassword,
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|                         clearButton: true,
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|                         onChange: { [weak self] value in self?.databaseKeyEncryptionPassword = value }
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|                     ),
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|                     confirmTitle: "Export",
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|                     dismissOnConfirm: false,
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|                     onConfirm: { [weak self] modal in
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|                         modal.dismiss(animated: true) {
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|                             guard let password: String = self?.databaseKeyEncryptionPassword, password.count >= 6 else {
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|                                 self?.transitionToScreen(
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|                                     ConfirmationModal(
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|                                         info: ConfirmationModal.Info(
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|                                             title: "Error",
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|                                             body: .text("Password must be at least 6 characters")
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|                                         )
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|                                     ),
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|                                     transitionType: .present
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|                                 )
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|                                 return
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|                             }
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|                             
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|                             do {
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|                                 let exportInfo = try Storage.shared.exportInfo(password: password)
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|                                 let shareVC = UIActivityViewController(
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|                                     activityItems: [
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|                                         URL(fileURLWithPath: exportInfo.dbPath),
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|                                         URL(fileURLWithPath: exportInfo.keyPath)
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|                                     ],
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|                                     applicationActivities: nil
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|                                 )
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|                                 shareVC.completionWithItemsHandler = { [weak self] _, completed, _, _ in
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|                                     guard
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|                                         completed &&
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|                                         generatedPassword == self?.databaseKeyEncryptionPassword
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|                                     else { return }
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|                                     
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|                                     self?.transitionToScreen(
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|                                         ConfirmationModal(
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|                                             info: ConfirmationModal.Info(
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|                                                 title: "Password",
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|                                                 body: .text("""
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|                                                 The generated password was:
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|                                                 \(generatedPassword)
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|                                                 
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|                                                 Avoid sending this via the same means as the database
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|                                                 """),
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|                                                 confirmTitle: "Share",
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|                                                 dismissOnConfirm: false,
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|                                                 onConfirm: { [weak self] modal in
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|                                                     modal.dismiss(animated: true) {
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|                                                         let passwordShareVC = UIActivityViewController(
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|                                                             activityItems: [generatedPassword],
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|                                                             applicationActivities: nil
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|                                                         )
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|                                                         if UIDevice.current.isIPad {
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|                                                             passwordShareVC.excludedActivityTypes = []
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|                                                             passwordShareVC.popoverPresentationController?.permittedArrowDirections = (targetView != nil ? [.up] : [])
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|                                                             passwordShareVC.popoverPresentationController?.sourceView = targetView
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|                                                             passwordShareVC.popoverPresentationController?.sourceRect = (targetView?.bounds ?? .zero)
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|                                                         }
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|                                                         
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|                                                         self?.transitionToScreen(passwordShareVC, transitionType: .present)
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|                                                     }
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|                                                 }
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|                                             )
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|                                         ),
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|                                         transitionType: .present
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|                                     )
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|                                 }
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|                                 
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|                                 if UIDevice.current.isIPad {
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|                                     shareVC.excludedActivityTypes = []
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|                                     shareVC.popoverPresentationController?.permittedArrowDirections = (targetView != nil ? [.up] : [])
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|                                     shareVC.popoverPresentationController?.sourceView = targetView
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|                                     shareVC.popoverPresentationController?.sourceRect = (targetView?.bounds ?? .zero)
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|                                 }
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|                                 
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|                                 self?.transitionToScreen(shareVC, transitionType: .present)
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|                             }
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|                             catch {
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|                                 let message: String = {
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|                                     switch error {
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|                                         case CryptoKitError.incorrectKeySize:
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|                                             return "The password must be between 6 and 32 characters (padded to 32 bytes)"
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|                                         
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|                                         default: return "Failed to export database"
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|                                     }
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|                                 }()
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|                                 
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|                                 self?.transitionToScreen(
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|                                     ConfirmationModal(
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|                                         info: ConfirmationModal.Info(
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|                                             title: "Error",
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|                                             body: .text(message)
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|                                         )
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|                                     ),
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|                                     transitionType: .present
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|                                 )
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|                             }
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|                         }
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|                     }
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|                 )
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|             ),
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|             transitionType: .present
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|         )
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|     }
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| #endif
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| }
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