func application()

in Swift/KVSiOSApp/AppDelegate.swift [15:84]
55 lines of code
8 McCabe index (conditional complexity)

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

        // Warn user if configuration not updated
        if (cognitoIdentityUserPoolId == "REPLACEME") {
            let alertController = UIAlertController(title: "Invalid Configuration",
                                                    message: "Please configure user pool constants in Constants.swift and in the awsconfiguration.json file.",
                                                    preferredStyle: .alert)
            let okAction = UIAlertAction(title: "Ok", style: .default, handler: nil)
            alertController.addAction(okAction)

            self.window?.rootViewController!.present(alertController, animated: true, completion: nil)
        }
        // setup logging
        AWSDDLog.sharedInstance.logLevel = .verbose

        // setup service configuration
        let serviceConfiguration = AWSServiceConfiguration(region: cognitoIdentityUserPoolRegion, credentialsProvider: nil)

        // create pool configuration
        let poolConfiguration = AWSCognitoIdentityUserPoolConfiguration(clientId: cognitoIdentityUserPoolAppClientId,
                                                                        clientSecret: cognitoIdentityUserPoolAppClientSecret,
                                                                        poolId: cognitoIdentityUserPoolId)

        // initialize user pool client
        AWSCognitoIdentityUserPool.register(with: serviceConfiguration, userPoolConfiguration: poolConfiguration, forKey: awsCognitoUserPoolsSignInProviderKey)

        AWSMobileClient.default().initialize { (userState, error) in
            if let error = error {
                print("error: \(error.localizedDescription)")

                return
            }

            guard let userState = userState else {
                return
            }
            print("The user is \(userState.rawValue).")
            self.storyboard = UIStoryboard(name: "Main", bundle: nil)

            switch userState {
            case .signedIn:
                self.navigationController = self.storyboard?.instantiateViewController(withIdentifier: "channelConfig") as? UINavigationController
                self.channelConfigViewController = self.navigationController?.viewControllers[0] as? ChannelConfigurationViewController
                DispatchQueue.main.async {
                    self.navigationController!.popToRootViewController(animated: true)
                    if (!self.navigationController!.isViewLoaded
                        || self.navigationController!.view.window == nil) {
                        self.window?.rootViewController?.present(self.navigationController!,
                                                                 animated: true,
                                                                 completion: nil)
                    }
                }
                break
            default:
                self.navigationController = self.storyboard?.instantiateViewController(withIdentifier: "signinController") as? UINavigationController
                self.signInViewController = self.navigationController?.viewControllers[0] as? SignInViewController
                DispatchQueue.main.async {
                    self.navigationController!.popToRootViewController(animated: true)
                    if (!self.navigationController!.isViewLoaded
                        || self.navigationController!.view.window == nil) {
                        self.window?.rootViewController?.present(self.navigationController!,
                                                                 animated: true,
                                                                 completion: nil)
                    }
                }
            }
        }
        return true
    }