import UIKit

class TestView: UIView {
  
  var name: String = ""

  override init(frame: CGRect) {
    super.init(frame: frame)
  }
  
  required init?(coder: NSCoder) {
    fatalError("init(coder:) has not been implemented")
  }
  
  override func hitTest(_ point: CGPoint,
                        with event: UIEvent?) -> UIView? {
    print("⭐️ \(name) - hitTest enter")
    let res = super.hitTest(point, with: event)
    print("💗 \(name) - hitTest result: \(res)")
    return res
  }
  
  override func touchesBegan(_ touches: Set<UITouch>,
                             with event: UIEvent?) {
    print("\(name) - touchesBegan")
    super.touchesBegan(touches, with: event)
  }
  
  override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
    print("\(name) - touchesEnded")
    super.touchesEnded(touches, with: event)
  }
  
  override func touchesCancelled(_ touches: Set<UITouch>,
                                 with event: UIEvent?) {
    print("\(name) - touchesCancelled")
    super.touchesCancelled(touches, with: event)
  }
}

class ViewController: UIViewController {
  
  private lazy var button = {
    let b = UIButton(frame: CGRect(origin: .zero, size: CGSize(width: 50, height: 50)))
    b.setTitle("btn", for: .normal)
    b.setTitleColor(.black, for: .normal)
    return b
  }()
  
  private lazy var orangeView = {
    let v = TestView(frame: CGRect(origin: CGPoint(x: 100, y: 100), size: CGSize(width: 200, height: 500)))
    v.backgroundColor = .orange
    v.name = "orange"
    let ges = UITapGestureRecognizer(target: self, action: #selector(tapped(ges:)))
    v.addGestureRecognizer(ges)
    return v
  }()
  
  private lazy var blueView = {
    let v = TestView(frame: CGRect(origin: CGPoint(x: 20, y: 20), size: CGSize(width: 150, height: 150)))
    v.backgroundColor = .blue
    v.name = "blue"
    return v
  }()
  
  private lazy var greenView = {
    let v = TestView(frame: CGRect(origin: CGPoint(x: 20, y: 180), size: CGSize(width: 100, height: 100)))
    v.backgroundColor = .green
    v.name = "green"
    return v
  }()
  
  private lazy var blackView = {
    let v = TestView(frame: CGRect(origin: CGPoint(x: 20, y: 300), size: CGSize(width: 70, height: 70)))
    v.backgroundColor = .black
    v.name = "black"
    return v
  }()
  
  private lazy var redView = {
    
    let v = TestView(frame: CGRect(origin: CGPoint(x: 20, y: 20), size: CGSize(width: 100, height: 100)))
    v.backgroundColor = .red
    v.name = "red"
    
    return v
  }()
  
  override func viewDidLoad() {
    super.viewDidLoad()
    view.backgroundColor = .white
    button.addTarget(self,
                     action: #selector(buttonTap(sender:)),
                     for: .touchUpInside)
    view.addSubview(orangeView)
    orangeView.addSubview(blueView)
    orangeView.addSubview(greenView)
    orangeView.addSubview(blackView)
    blueView.addSubview(redView)
    redView.addSubview(button)
    
  }

  @objc func tapped(ges: UITapGestureRecognizer) {
    print("UITapGestureRecognizer - tap")
  }
  
  @objc func buttonTap(sender: UIButton) {
    print("button - tap")
  }
  
  override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
    print("ViewController - touchesBegan")
    super.touchesBegan(touches, with: event)
  }
  
  override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
    print("ViewController - touchesEnded")
    super.touchesEnded(touches, with: event)
  }
  
  override func touchesCancelled(_ touches: Set<UITouch>, with event: UIEvent?) {
    print("ViewController - touchesCancelled")
    super.touchesCancelled(touches, with: event)
  }
}