import UIKit
import Cardly

class ViewController: UIViewController, CardlyViewDataSource, CardlyViewDelegate {
    @IBOutlet weak var cardlyView: CardlyView!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        cardlyView.dataSource = self
        cardlyView.delegate = self
    }
    
    // MARK: - CardlyViewDataSource
    
    func numberOfCards(in cardlyView: CardlyView) -> Int {
        return 20
    }
    
    func cardlyView(_ cardlyView: CardlyView, viewForCardAt index: Int) -> UIView {
        let card = UIView()
        card.backgroundColor = UIColor(hue: CGFloat(index) / 20.0, saturation: 0.8, brightness: 0.9, alpha: 1.0)
        return card
    }
    
    func cardlyView(_ cardlyView: CardlyView, overlayForCardAt index: Int) -> CardlyOverlayView? {
        return nil
    }
    
    // MARK: - CardlyViewDelegate
    
    func cardlyView(_ cardlyView: CardlyView, didSwipeCardAt index: Int, in direction: CardlySwipeDirection) {
        print("Swiped card \(index): \(direction == .left ? "NOPE" : "LIKE")")
    }
    
    func cardlyView(_ cardlyView: CardlyView, didShowCardAt index: Int) {
        print("Showing card \(index)")
    }
    
    func cardlyViewDidRunOutOfCards(_ cardlyView: CardlyView) {
        print("No more cards!")
    }
}

cardlyView.animator.swipeThreshold = 0.3
cardlyView.animator.swipeOutDuration = 0.4
cardlyView.animator.maxRotationAngle = CGFloat.pi / 6
cardlyView.animator.backgroundCardScale = 0.9