   // MARK: Properties
   private var cardIndex: Int = 0
   private lazy var shareHelper: ShareHelper = ShareHelper(viewController: self)
+  private lazy var alertHelper: AlertHelper = AlertHelper(viewController: self)
 }
 
 // MARK: - Lifecycle

  private func swipeViewDidCancelSwiping(view: LinkCardView) {
    view.animateOverlayPercentage(0)
  }
}

// MARK: - Helpers
extension LinkSwipeViewController {

  private func voteCompletion(error: ErrorType?, view: UIView) {
    guard let _ = error where swipeView.history.last == view else {

import RxSwift
import ZLSwipeableViewSwift

class LinkSwipeViewController: UIViewController, CloseableViewController, AlerteableViewController {

  // MARK: - IBOutlets
  @IBOutlet private weak var swipeView: ZLSwipeableView!
