LONDON-IOS/GME Remit/Modules/LauncherScreen/User Interface/View/LauncherScreenViewController.swift

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

import UIKit

class LauncherScreenViewController: UIViewController {
  
  // MARK: Properties
  
  var presenter: LauncherScreenModuleInterface?
  
  private var isShow = false
  
  private var window: UIWindow? {
    if let app = UIApplication.shared.delegate as? AppDelegate {
      return app.window
    } else {
      return nil
    }
  }
  // MARK: Computed Properties
  
  // MARK: IBOutlets
  @IBOutlet private weak var logoImageView: UIImageView!
  
  // MARK: VC's Life cycle
  
  override func viewDidLoad() {
    super.viewDidLoad()
    setup()
  }
  
  override func viewDidAppear(_ animated: Bool) {
    super.viewDidAppear(animated)
    
    #if DEBUG
    DebugManager.shared.selectServerAlert(target: self) {
      if !self.isShow {
        self.setEntryPoint()
        self.isShow = true
      }
    }
    
    #else
    if !isShow {
      setEntryPoint()
      isShow = true
    }
    #endif
  }
}

// MARK: LauncherScreenViewInterface
extension LauncherScreenViewController: LauncherScreenViewInterface {
  func setError(with error: Error) {
    alertWithOk(
      type: .error,
      message: error.localizedDescription,
      okTitle: "retry_text".localized(),
      okAction: {
        self.presenter?.goSplashScreen()
    }
    )
  }
}

// MARK: Other Functions
extension LauncherScreenViewController {
  private func setup() {
    logoImageView?.image = logoImageView?.image?.withRenderingMode(.alwaysTemplate)
    logoImageView.tintColor = .themeWhiteRed
    
    setUUID()
    setupNavBar()
    
    view.backgroundColor = .themeRed
  }
  
  private func setUUID() {
    if GMEDB.shared.app.string(.uuid) == nil {
      let uuid = UUID().uuidString
      GMEDB.shared.app.set(uuid, .uuid)
    }
  }
  
  private func setupNavBar() {
    let appearance = UINavigationBar.appearance()
    appearance.backIndicatorImage = #imageLiteral(resourceName: "backIconBlack")
    appearance.backIndicatorTransitionMaskImage = #imageLiteral(resourceName: "backIconBlack")
    appearance.tintColor = UIColor.black
  }
}

// MARK: - Login Logic
extension LauncherScreenViewController {
  private func setEntryPoint() {
    guard KeyChain.shared.get(key: .id) != nil,
      (KeyChain.shared.get(key: .login) ?? "1") == "1" ? true : false else {
        presenter?.goSplashScreen()
        return
    }
    
    presenter?.openAuthenticationScreen()
  } 
}