import UIKit

  final class UIApplication {
    static let shared: UIApplication = UIApplication()

    func open(_ url: URL, function: String = #function) {
        print(function, "called to open:", url)
    }
  }

          

  //: Hello World! Nice to meet you

  class Jarek
  {
    let firstName = "Jarek"
    let lastName = "Pendowski"
    let motto = "Everything is possible."

    var technologies : [String] = []
    var recentJobs : [(String, String)] = []

    func hello() -> String {
      return "Hi! I'm \(firstName) \(lastName)."
    }
          

    func picture() -> UIImage? {
      guard let url = URL(string: "http://pendowski.com/img/jarek148.jpg"),
          let data = try? Data(contentsOf: url) else {
        return nil
      }
      return UIImage(data: data)
    }
          



    func email() -> String? {
      if let email = URL(string: "mailto:[email protected]") {
        UIApplication.shared.open(email)
        return "Email me"
      }

      return nil
    }
          

    func twitter() -> String? {
      if let twitter = URL(string: "http://twitter.com/iloveshw") {
        UIApplication.shared.open(twitter)
        return "@iloveshw"
      }

      return nil
    }
          

    func github() -> String? {
      if let github = URL(string: "http://github.com/pendowski") {
        UIApplication.shared.open(github)
        return "@pendowski"
      }

      return nil
    }

  }

  let me = Jarek()

  me.technologies = [ "Swift", "Node.js", "Objective-C", ".NET" ]
  me.recentJobs = [ ("410 Labs", "iOS Engineer"), ("Macoscope", "iOS / OS X Developer"), ("Apple Poland", "Trainer"), ("Novel & Microsoft", ".NET Partner") ]