import Nabigeta

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
  var navigation: Navigation! = nil

  func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
    self.navigation = Navigation(traitProvider: self.window!)

    self.navigation.router = { context in
        switch(context) {
          case is Author:
            return Route(AuthorViewController.self)

          case is Book:
            return Route(BookViewController.self)
              .present { trait in
                  switch(trait.horizontalClass, trait.verticalClass) {
                    case (.Compact, .Compact):
                      return PresentationPush()
                    default:
                      return PresentationModal()
                  }
              }
        }
    }
  }
}

class AuthorViewController : UIViewController, Navigable {
    func didNavigate(to author: Author) {
      print("Navigated to /(author.name) controller")
    }
}

class BookViewController {
  func didTapAuthor() {
    self.navigate(to: self.author) // AuthorViewController is displayed!
  }
}

  bookViewController.navigateBack() // come back to BookViewController

  authorViewController.navigationTerminated(status: .Canceled) // dismiss AuthorViewController

  bookViewController
    .navigate(to: self.author)
    .onTerminate { status in
      if status == .Canceled {
        print("author controller cancelled")
      }
    }