medium_fonts_extesion.swift

import UIKit

extension UIFont {
  enum FontStyle {
    case bold
    case book
    case light
    case regular
  }

  static func defaultAppFonts(style: TextStyle, size: CGFloat) -> UIFont {
    var name: String
    switch style {
    case .bold: name = "Gotham-Bold"
    case .book: name = "Gotham-Book"
    case .light: name = "Gotham-Light"
    case .regular: name = "Gotham-Regular"
    }

    return UIFont(name: name, size: size) ?? UIFont.systemFont(ofSize: size)
  }
}