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submodules/TelegramUI/Sources/AuthorizationSequenceCodeEntryController.swift

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+import Foundation
+import UIKit
+import Display
+import AsyncDisplayKit
+import TelegramCore
+import SyncCore
+import TelegramPresentationData
+import ProgressNavigationButtonNode
+
+final class AuthorizationSequenceCodeEntryController: ViewController {
+    private var controllerNode: AuthorizationSequenceCodeEntryControllerNode {
+        return self.displayNode as! AuthorizationSequenceCodeEntryControllerNode
+    }
+    
+    private let strings: PresentationStrings
+    private let theme: PresentationTheme
+    private let openUrl: (String) -> Void
+    
+    var loginWithCode: ((String) -> Void)?
+    var reset: (() -> Void)?
+    var requestNextOption: (() -> Void)?
+    
+    var data: (String, SentAuthorizationCodeType, AuthorizationCodeNextType?, Int32?)?
+    var termsOfService: (UnauthorizedAccountTermsOfService, Bool)?
+    
+    private let hapticFeedback = HapticFeedback()
+    
+    var inProgress: Bool = false {
+        didSet {
+            if self.inProgress {
+                let item = UIBarButtonItem(customDisplayNode: ProgressNavigationButtonNode(color: self.theme.rootController.navigationBar.accentTextColor))
+                self.navigationItem.rightBarButtonItem = item
+            } else {
+                self.navigationItem.rightBarButtonItem = UIBarButtonItem(title: self.strings.Common_Next, style: .done, target: self, action: #selector(self.nextPressed))
+            }
+            self.controllerNode.inProgress = self.inProgress
+        }
+    }
+    
+    init(presentationData: PresentationData, openUrl: @escaping (String) -> Void, back: @escaping () -> Void) {
+        self.strings = presentationData.strings
+        self.theme = presentationData.theme
+        self.openUrl = openUrl
+        
+        super.init(navigationBarPresentationData: NavigationBarPresentationData(theme: AuthorizationSequenceController.navigationBarTheme(theme), strings: NavigationBarStrings(presentationStrings: strings)))
+        
+        self.supportedOrientations = ViewControllerSupportedOrientations(regularSize: .all, compactSize: .portrait)
+        
+        self.hasActiveInput = true
+        
+        self.statusBar.statusBarStyle = theme.intro.statusBarStyle.style
+        
+        self.navigationItem.rightBarButtonItem = UIBarButtonItem(title: self.strings.Common_Next, style: .done, target: self, action: #selector(self.nextPressed))
+        
+        self.attemptNavigation = { _ in
+            return false
+        }
+        self.navigationBar?.backPressed = { [weak self] in
+            self?.present(standardTextAlertController(theme: AlertControllerTheme(presentationData: presentationData), title: nil, text: presentationData.strings.Login_CancelPhoneVerification, actions: [TextAlertAction(type: .genericAction, title: presentationData.strings.Login_CancelPhoneVerificationContinue, action: {
+            }), TextAlertAction(type: .defaultAction, title: presentationData.strings.Login_CancelPhoneVerificationStop, action: {
+                back()
+            })]), in: .window(.root))
+        }
+    }
+    
+    required init(coder aDecoder: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+    
+    override public func loadDisplayNode() {
+        self.displayNode = AuthorizationSequenceCodeEntryControllerNode(strings: self.strings, theme: self.theme)
+        self.displayNodeDidLoad()
+        
+        self.controllerNode.view.disableAutomaticKeyboardHandling = [.forward, .backward]
+        
+        self.controllerNode.loginWithCode = { [weak self] code in
+            self?.continueWithCode(code)
+        }
+        
+        self.controllerNode.requestNextOption = { [weak self] in
+            self?.requestNextOption?()
+        }
+        
+        self.controllerNode.requestAnotherOption = { [weak self] in
+            self?.requestNextOption?()
+        }
+        
+        self.controllerNode.updateNextEnabled = { [weak self] value in
+            self?.navigationItem.rightBarButtonItem?.isEnabled = value
+        }
+        
+        if let (number, codeType, nextType, timeout) = self.data {
+            self.controllerNode.updateData(number: number, codeType: codeType, nextType: nextType, timeout: timeout)
+        }
+    }
+    
+    override func viewDidAppear(_ animated: Bool) {
+        super.viewDidAppear(animated)
+        
+        self.controllerNode.activateInput()
+    }
+    
+    func updateData(number: String, codeType: SentAuthorizationCodeType, nextType: AuthorizationCodeNextType?, timeout: Int32?, termsOfService: (UnauthorizedAccountTermsOfService, Bool)?) {
+        self.termsOfService = termsOfService
+        if self.data?.0 != number || self.data?.1 != codeType || self.data?.2 != nextType || self.data?.3 != timeout {
+            if case .otherSession = codeType {
+                self.title = number
+            } else {
+                self.title = nil
+            }
+            self.data = (number, codeType, nextType, timeout)
+            if self.isNodeLoaded {
+                self.controllerNode.updateData(number: number, codeType: codeType, nextType: nextType, timeout: timeout)
+                self.requestLayout(transition: .immediate)
+            }
+        }
+    }
+    
+    override func containerLayoutUpdated(_ layout: ContainerViewLayout, transition: ContainedViewLayoutTransition) {
+        super.containerLayoutUpdated(layout, transition: transition)
+        
+        self.controllerNode.containerLayoutUpdated(layout, navigationBarHeight: self.navigationHeight, transition: transition)
+    }
+    
+    @objc func nextPressed() {
+        guard let (_, type, _, _) = self.data else {
+            return
+        }
+        
+        var minimalCodeLength = 1
+        
+        switch type {
+            case let .otherSession(length):
+                minimalCodeLength = Int(length)
+            case let .sms(length):
+                minimalCodeLength = Int(length)
+            case let .call(length):
+                minimalCodeLength = Int(length)
+            case .flashCall:
+                break
+        }
+        
+        if self.controllerNode.currentCode.count < minimalCodeLength {
+            hapticFeedback.error()
+            self.controllerNode.animateError()
+        } else {
+            self.continueWithCode(self.controllerNode.currentCode)
+        }
+    }
+    
+    private func continueWithCode(_ code: String) {
+        self.loginWithCode?(code)
+    }
+    
+    func applyConfirmationCode(_ code: Int) {
+        self.controllerNode.updateCode("\(code)")
+    }
+}