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final class KeyPairMigrationSheet : Sheet {
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override class var isDismissable: Bool { false }
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override func populateContentView() {
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// Image view
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let imageView = UIImageView(image: #imageLiteral(resourceName: "Shield").withTint(Colors.text))
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imageView.set(.width, to: 64)
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imageView.set(.height, to: 64)
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imageView.contentMode = .scaleAspectFit
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// Title label
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let titleLabel = UILabel()
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titleLabel.textColor = Colors.text
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titleLabel.font = .boldSystemFont(ofSize: isIPhone5OrSmaller ? Values.largeFontSize : Values.veryLargeFontSize)
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titleLabel.text = "Session IDs Just Got Better"
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titleLabel.textAlignment = .center
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titleLabel.numberOfLines = 0
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titleLabel.lineBreakMode = .byWordWrapping
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// Top stack view
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let topStackView = UIStackView(arrangedSubviews: [ imageView, titleLabel ])
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topStackView.axis = .vertical
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topStackView.spacing = Values.largeSpacing
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topStackView.alignment = .center
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// Explanation label
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let explanationLabel = UILabel()
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explanationLabel.textColor = Colors.text
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explanationLabel.font = .systemFont(ofSize: Values.smallFontSize)
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explanationLabel.textAlignment = .center
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explanationLabel.text = """
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We’ve upgraded Session IDs to make them even more private and secure. To ensure your continued privacy you're now required to upgrade.
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Your existing contacts and conversations will be lost, but you’ll be able to use Session knowing you have the best privacy and security possible.
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"""
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explanationLabel.numberOfLines = 0
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explanationLabel.lineBreakMode = .byWordWrapping
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// Upgrade now button
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let upgradeNowButton = Button(style: .prominentOutline, size: .large)
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upgradeNowButton.set(.width, to: 240)
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upgradeNowButton.setTitle("Upgrade Now", for: UIControl.State.normal)
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upgradeNowButton.addTarget(self, action: #selector(upgradeNow), for: UIControl.Event.touchUpInside)
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// Upgrade now button
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let upgradeLaterButton = Button(style: .prominentOutline, size: .large)
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upgradeLaterButton.set(.width, to: 240)
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upgradeLaterButton.setTitle("Upgrade Later", for: UIControl.State.normal)
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upgradeLaterButton.addTarget(self, action: #selector(upgradeLater), for: UIControl.Event.touchUpInside)
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// Button stack view
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let buttonStackView = UIStackView(arrangedSubviews: [ upgradeNowButton, upgradeLaterButton ])
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buttonStackView.axis = .vertical
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buttonStackView.spacing = Values.mediumSpacing
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buttonStackView.alignment = .center
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// Main stack view
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let stackView = UIStackView(arrangedSubviews: [ topStackView, explanationLabel, buttonStackView ])
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stackView.axis = .vertical
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stackView.spacing = Values.veryLargeSpacing
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stackView.alignment = .center
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// Constraints
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contentView.addSubview(stackView)
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stackView.pin(.leading, to: .leading, of: contentView, withInset: Values.veryLargeSpacing)
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stackView.pin(.top, to: .top, of: contentView, withInset: Values.largeSpacing)
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contentView.pin(.trailing, to: .trailing, of: stackView, withInset: Values.veryLargeSpacing)
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contentView.pin(.bottom, to: .bottom, of: stackView, withInset: Values.veryLargeSpacing + overshoot)
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}
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@objc private func upgradeNow() {
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Storage.prepareForV2KeyPairMigration()
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}
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@objc private func upgradeLater() {
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let alert = UIAlertController(title: "Warning", message: "You won't be able to send or receive messages until you upgrade.", preferredStyle: .alert)
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alert.addAction(UIAlertAction(title: "OK", accessibilityIdentifier: nil, style: .default, handler: nil))
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presentingViewController?.dismiss(animated: true, completion: nil) // Dismiss self
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presentingViewController?.present(alert, animated: true, completion: nil)
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}
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}
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