AppDelegate

import GoogleSignIn
import Firebase
import UIKit

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate, GIDSignInDelegate {

    var window: UIWindow?
    let defaults = UserDefaults.standard

    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        // Override point for customization after application launch.
        FirebaseApp.configure()

        GIDSignIn.sharedInstance()?.clientID = "333533065053-cf589bkjpujvjvd4t851pm2tthjula1e.apps.googleusercontent.com"
        GIDSignIn.sharedInstance()?.delegate = self


        return true
    }

    func sign(_ signIn: GIDSignIn!, didSignInFor user: GIDGoogleUser!, withError error: Error!) {

        if (error == nil) {

            // Perform any operations on signed in user here.
             let userId = user.userID                  // For client-side use only!
             let idToken = user.authentication.idToken // Safe to send to the server
             let fullName = user.profile.name
             let givenName = user.profile.givenName
             let familyName = user.profile.familyName
             let email = user.profile.email


             print("\n\(String(describing: userId)) \n\(String(describing: idToken)) \n\(String(describing: fullName)) \n \(String(describing: givenName)) \n \(String(describing: familyName)) \n \(String(describing: email))");

  }
self.defaults.synchronize()
            let storyboard = UIStoryboard(name: "Main", bundle: nil)
            let initialViewController = storyboard.instantiateViewController(identifier: Constants.Storyboard.homeViewController) as? HomeViewController
             //withIdentifier: "HomeVC")
            self.window?.rootViewController = initialViewController
            self.window?.makeKeyAndVisible()

        } else {
            print("\(error.localizedDescription)")
        }
    }

    func application(_ app: UIApplication, open url: URL, options: [UIApplication.OpenURLOptionsKey : Any] = [:]) -> Bool {
        return GIDSignIn.sharedInstance().handle(url)
    }

    // Added from firebase docs for working with ios 8 or older
    func application(_ application: UIApplication, open url: URL, sourceApplication: String?, annotation: Any) -> Bool {
        return GIDSignIn.sharedInstance().handle(url)
    }

    func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration {

        return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role)
    }

    func application(_ application: UIApplication, didDiscardSceneSessions sceneSessions: Set<UISceneSession>) {

    }
}