RadioButton.swift

import UIKit
import Shared
import AppResources

final class RadioButton: UIControl {
  private let filledView = UIView()
  private let containerView = UIView()

  init() {
    super.init(frame: .zero)

    containerView.layer.borderWidth = 1
    containerView.layer.cornerRadius = 15
    containerView.layer.masksToBounds = true
    containerView.layer.borderColor = Asset.neutralWhite.color.cgColor

    filledView.isHidden = true
    filledView.layer.cornerRadius = 10
    filledView.layer.masksToBounds = true
    filledView.backgroundColor = Asset.neutralWhite.color

    containerView.isUserInteractionEnabled = false
    filledView.isUserInteractionEnabled = false

    addSubview(containerView)
    containerView.addSubview(filledView)

    setupConstraints()
  }

  required init?(coder: NSCoder) { nil }

  func set(enabled: Bool) {
    filledView.isHidden = !enabled
  }

  private func setupConstraints() {
    containerView.snp.makeConstraints {
      $0.width.equalTo(30)
      $0.height.equalTo(30)
      $0.top.equalToSuperview().offset(5)
      $0.left.equalToSuperview().offset(5)
      $0.right.equalToSuperview().offset(-5)
      $0.bottom.equalToSuperview().offset(-5)
    }

    filledView.snp.makeConstraints {
      $0.top.equalToSuperview().offset(5)
      $0.left.equalToSuperview().offset(5)
      $0.right.equalToSuperview().offset(-5)
      $0.bottom.equalToSuperview().offset(-5)
    }
  }
}