LONDON-IOS/GME Remit/Modules/LauncherScreen/User Interface/Wireframe/LauncherScreenWireframe.swift

//
//  LauncherScreenWireframe.swift
//  GME Remit
//
//  Created by InKwon James Kim on 22/07/2019.
//Copyright © 2019 Gobal Money Express Co. Ltd. All rights reserved.
//

import UIKit
import LGSideMenuController

class LauncherScreenWireframe {
  weak var view: UIViewController!
  private var biometricViewController: UIViewController?
}

extension LauncherScreenWireframe: LauncherScreenWireframeInput {
  
  var storyboardName: String {return "LauncherScreen"}
  
  func getMainView() -> UIViewController {
    let service = LauncherScreenService()
    let interactor = LauncherScreenInteractor(service: service)
    let presenter = LauncherScreenPresenter()
    let viewController = viewControllerFromStoryboard(of: LauncherScreenViewController.self)
    
    viewController.presenter = presenter
    interactor.output = presenter
    presenter.interactor = interactor
    presenter.wireframe = self
    presenter.view = viewController
    
    view = viewController
    return viewController
  }
  
  func goSplashScreen() {
    let splashWireframe = SplashScreenWireframe()
    let splashViewController = splashWireframe.getMainView()
    
    let nav = UINavigationController(rootViewController: splashViewController)
    window?.rootViewController = nav
  }
  
  func openAuthenticationScreen() {
    let biometricAuthenticationWireframe = BiometricAuthenticationWireframe()
    biometricAuthenticationWireframe.openWithDelegate(
      on: view,
      delegate: self
    )
  }
}

// MARK: - BiometricAuthenticationViewControllerDelegate
extension LauncherScreenWireframe: BiometricAuthenticationViewControllerDelegate {
  func viewController(
    _ viewController: BiometricAuthenticationViewController,
    informationTitleLabel titleLabel: UILabel,
    authenticationButton button: UIButton
  ) {
    biometricViewController = viewController
    
    titleLabel.text = "bio_login_intro_text".localized()
    button.setTitle("login_text".localized(), for: .normal)
  }
  
  func didComplete(_ viewController: BiometricAuthenticationViewController) {
    self.doLogin()
  }
  
  func viewController(
    _ viewController: BiometricAuthenticationViewController,
    didFailWithError error: BiometricAuthenticationError,
    errorMessage: String?
    ) {
    print("BiometricAuthenticationWireframe Error: \(errorMessage ?? "")")
    
    // if don't use biometric authentication or user press password
    DispatchQueue.main.async {
      switch error {
      case .biometryNotAvailable, .userFallback:
        let secureKeypad = SecureKeypad(target: viewController)
        secureKeypad.delegate = self
        secureKeypad.present(animated: true)
        
      case .notBeConfigured, .biometryNotEnrolled:
        viewController.alert(type: .error, message: error.message)
        
      default:
        break
      }
    }
  }
  
  func doSelectLocalAuthenticationPolicy(
    _ viewController: BiometricAuthenticationViewController
  ) -> BiometricAuthenticationPolicy {
    return .deviceOwnerAuthenticationWithBiometrics
  }
}

// MARK: - SecureKeypadDelegate
extension LauncherScreenWireframe: SecureKeypadDelegate {
  func didComplete(_ encryptedString: String, garbagePassword: String, length: Int) {
    if encryptedString != "" {
      KeyChain.shared.save(data: encryptedString, key: .password)
      doLogin()
    }
  }
}

// MARK: - Other Methods
extension LauncherScreenWireframe {
  private func doLogin() {
    biometricViewController?.showProgressHud(backgroundColor: .clear, loadingColor: .white, textColor: .white)
    
    let loginService = LoginService()
    
    guard let userID = KeyChain.shared.get(key: .id),
      let password = KeyChain.shared.get(key: .password) else {
        (view as? LauncherScreenViewController)?.presenter?.goSplashScreen()
        return
    }
    
    loginService.accessCode(
      userId: userID,
      password: password,
      success: { (user) in
        let accessCode = user?.accessCode ?? ""
        let accessCodeBase64 = accessCode
        
        Utility.save(user: user, accessCodeBase64: accessCodeBase64, password: password, login: true)
        
        let mainWireFrame = MainWireframe.shared
        let tabBarViewController = mainWireFrame?.getMainView()
        guard let sidemenuVc = UIStoryboard(name: "SideMenu", bundle: nil).instantiateViewController(
          withIdentifier: "SideMenuViewController"
          ) as? SideMenuViewController else {
            return
        }
        
        let sideMenuController = LGSideMenuController(
          rootViewController: tabBarViewController,
          leftViewController: sidemenuVc,
          rightViewController: nil
        )
        
        sideMenuController.rootViewLayerShadowColor = UIColor(white: 0.9, alpha: 0.6)
        sideMenuController.rootViewLayerShadowRadius = 8.0
        sideMenuController.leftViewPresentationStyle = .scaleFromBig
        sideMenuController.leftViewWidth = UIScreen.main.bounds.width - 70.0
        sideMenuController.leftViewBackgroundBlurEffect = UIBlurEffect(style: .regular)
        
        self.biometricViewController?.hideProgressHud()
        self.biometricViewController?.dismiss(animated: true) {
          self.window?.backgroundColor = sidemenuVc.view.backgroundColor
          self.window?.rootViewController = sideMenuController
        }
        
      },
      failure: { (error) in
        self.biometricViewController?.hideProgressHud()
        self.biometricViewController?.alert(
          type: .error,
          message: error.localizedDescription,
          title: "Warning"
        ) {
          // if failed login, remove all in keychain, change logout status and then go splash screen
          KeyChain.shared.removeAll()
          self.biometricViewController?.dismiss(animated: true) {
            (self.view as? LauncherScreenViewController)?.presenter?.goSplashScreen()
          }
        }
      }
    )
  }
  
}