import YCarousel

final class ViewController: UIViewController {
    private let carouselView: CarouselView = {
        let page1 = UIImageView(image: UIImage(named: "tutorial1"))
        let page2 = UIImageView(image: UIImage(named: "tutorial2"))
        let page3 = UIImageView(image: UIImage(named: "tutorial3"))

        let carouselView = CarouselView(views: [page1, page2, page3])
        return carouselView
    }()

    override func viewDidLoad() {
        super.viewDidLoad()

        view.addSubview(carouselView)
        carouselView.constrainSize(width: 300, height: 300)
        carouselView.constrainCenter()
    }
}

import YCarousel

final class ViewController: UIViewController {
    private let carouselView = CarouselView()
    private let dataSource = CarouselViewProvider()

    override func viewDidLoad() {
        super.viewDidLoad()
        carouselView.dataSource = dataSource

        view.addSubview(carouselView)
        carouselView.constrainSize(width: 300, height: 300)
        carouselView.constrainCenter()
    }
}

final class CarouselViewProvider {
    private let imageNames = ["tutorial1", "tutorial2", "tutorial3"]
}

extension CarouselViewProvider: CarouselViewDataSource {
    func carouselView(pageAt index: Int) -> UIView {
        UIImageView(image: UIImage(named: imageNames[index]))
    }

    var numberOfPages: Int { imageNames.count }
}

import YCarousel

let page1 = UIImageView(image: UIImage(named: "tutorial1"))
let page2 = UIImageView(image: UIImage(named: "tutorial2"))
let page3 = UIImageView(image: UIImage(named: "tutorial3"))

let pages = [page1, page2, page3]

let carouselViewController = CarouselViewController(views: pages)
present(carouselViewController, animated: true, completion: nil)

import YCarousel

let childVC1 = OnboardingViewController()
let childVC2 = OnboardingViewController()
let childVC3 = OnboardingViewController()

let childVCs = [childVC1, childVC2, childVC3]

let carouselViewController = CarouselViewController(viewControllers: childVCs)
present(carouselViewController, animated: true, completion: nil)