 
     var safariViewController: SFSafariViewController? = nil
 
+    // MARK: Private Constants
+
     private let ClientIDKey : String = "ClientID"
     private let ClientSecretKey : String = "ClientSecret"
+
+    // MARK: Computed Properties
 
     var clientId : String {
         get {


class HomeViewController: UIViewController {

    @IBOutlet weak var clientIdTextField: UITextField!
    @IBOutlet weak var clientSecretTextField: UITextField!
    @IBOutlet weak var accessButton: UIButton!

        if let userInfo = notification?.userInfo {
            if let status = userInfo[StravaStatusKey] as? String {
                if status == StravaStatusSuccessValue {
                    print("Authorization successful!")
                    if let athlete = Strava.currentAthlete {
                        print("Athlete: \(athlete.fullName)")
                    }
