one_click_blog_appdelegate.swift

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
  
  private let WFAccessGroupKey: String = "WFAccessGroup"
  private let WFCredentialHelperServiceKey: String = "WFCredentialHelperServiceName"
  private let AccessPropertiesPlistName: String = "KeychainAccessGroupBridge-Dev"
    
  private let TestAccountUsernameKey = "TestAccountUsernameKey"
  private let TestAccountPasswordKey = "TestAccountUsernameKey"
  
  private lazy var keychainWrapper: KeychainWrapper = {
    guard let accessPropertiesUrl = Bundle.main.url(forResource: AccessPropertiesPlistName, withExtension: "plist"),
          let keychainAccessProperties = NSDictionary(contentsOf: accessPropertiesUrl),
          let keychainServiceName = keychainAccessProperties[WFCredentialHelperServiceKey] as? String,
          let keychainAccessGroup = keychainAccessProperties[WFAccessGroupKey] as? String else {
      fatalError("Unable to read contents of KeychainAccessGroupBridge-Dev.plist")
    }
    return KeychainWrapper(serviceName: keychainServiceName,
                           accessGroup: keychainAccessGroup)
  }()

  func application(_ application: UIApplication,
                   didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
    let args = CommandLine.arguments
    let username = args[1]
    let password = args[2]
    
    keychainWrapper.set(username, forKey: TestAccountUsernameKey)
    keychainWrapper.set(password, forKey: TestAccountPasswordKey)
    
    exit(EXIT_SUCCESS)
  }

}