//
//  CSManagement.swift
//  GME Remit
//
//  Created by InKwon James Kim on 2020/01/08.
//  Copyright © 2020 Gobal Money Express Co. Ltd. All rights reserved.
//
import ChannelIO
#if DEBUG
import FLEX
#endif
class CSManagement {
  enum IconType {
    case original
    case call
  }
  
  private let target: UIViewController
  private var csButton: UIBarButtonItem?
  private var badgeTarget: UIView?
  
  var messageCount = 0 {
    didSet {
      var appearance = BadgeAppearance()
      
      let message = messageCount != 0 ? "\(messageCount)" : nil
      
      appearance.backgroundColor = .themeWhiteRed
      appearance.textColor = .themeRedWhite
      
      csButton?.badge(text: message, appearance: appearance)
      
      badgeTarget?.badge(text: message, appearance: appearance)
    }
  }
  
  var chatIsBooted: Bool {
    return ChannelIO.isBooted
  }
  
  init(_ target: UIViewController, badgeTarget: UIView? = nil) {
    self.target = target
    self.badgeTarget = badgeTarget
  }
  
  func getCSButton(with type: IconType) -> UIBarButtonItem? {
    switch type {
    case .original:
      let supportImage = UIImage(named: "ic_support")?.withRenderingMode(.alwaysOriginal)

      csButton = UIBarButtonItem(
        image: supportImage,
        style: .plain,
        target: self,
        action: #selector(touch(_:))
      )
      return csButton
      
    case .call:
      let supportImage = UIImage(named: "call")?.withRenderingMode(.alwaysTemplate)

      csButton = UIBarButtonItem(
        image: supportImage,
        style: .plain,
        target: self,
        action: #selector(touch(_:))
      )
      
      csButton?.tintColor = .red
      
      return csButton
    }
  }
  
  func setNavigationRightBarbutton(type: IconType) {
    target.navigationItem.rightBarButtonItem = getCSButton(with: type)
  }
  
  func setChannelIO() {
    let settings = ChannelPluginSettings()
    settings.pluginKey = "24dc2dfd-3ed1-4953-b395-a2255ed41dae"
    settings.userId = GMEDB.shared.user.string(.userId)
    
    let profile = Profile()
    
    let username = GMEDB.shared.user.string(.fullName)
    let email = GMEDB.shared.user.string(.email)
    
    profile
      .set(name: username ?? "")
      .set(email: email ?? "")
    
    ChannelIO.delegate = self
    ChannelIO.boot(with:settings, profile: profile) {[weak self] (completion, _) in
      var message = "channelIO_error_message_text".localized()
      
      switch completion {
      case .success:
        ChannelIO.open(animated: true)
        return
      case .notInitialized: message += "(1)"
      case .networkTimeout: message += "(2)"
      case .notAvailableVersion: message += "(3)"
      case .serviceUnderConstruction: message += "(4)"
      case .requirePayment: message += "(5)"
      case .accessDenied: message += "(6)"
      case .unknown: message += "(7)"
      @unknown default: message += "(8)"
        
      }
      self?.target.alert(type: .error, message: message)
    }
  }
  
  func openChat(animated: Bool) {
    ChannelIO.open(animated: animated)
  }
  
  @objc func touch(_ sender: UIBarButtonItem) {
    let hotLines = HotLineService().staticHotLines
    let nativeCountry = GMEDB.shared.user.string(.countryCode)?.lowercased()
    let userHotLine = hotLines?.filter { $0.countryCode == nativeCountry }.first
    
    let alert = UIAlertController(
      title: nil,
      message: "help_you_text".localized(),
      preferredStyle: .actionSheet
    )
    
    let liveChat = UIAlertAction(
      title: "live_chat_text".localized(),
      style: .default
    ) {[weak self] _ in
      self?.target.alertWithOkCancel(
        message: "check_start_chat_text".localized(),
        title: "check_start_chat_title_text".localized(),
        okTitle: "yes_text".localized(),
        cancelTitle: "no_text".localized(),
        okAction: {
          self?.setChannelIO()
        }
      )
    }
    
    #if DEBUG
    let debug = UIAlertAction(
      title: "Debug",
      style: .default
    ) { _ in
      FLEXManager.shared()?.showExplorer()
    }
    
    let changeServer = UIAlertAction(
      title: "Change Server (\(server.rawValue))",
      style: .destructive
    ) { _ in
      MainWireframe.shared?.window?.rootViewController = LauncherScreenWireframe().getMainView()
    }
    #endif
    
    let contactNumber = UIAlertAction(
      title: userHotLine?.remitPhoneNumber ?? "1588 6864",
      style: .default
    ) { _ in
      self.startCall(contactNumber: userHotLine?.remitPhoneNumber ?? "1588 6864")
    }
    
    let facebook = UIAlertAction(
      title: "Facebook",
      style: .default
    ) { _ in
      UIApplication.tryURL(
        url: userHotLine?.remitFacebookURL ?? "https://www.facebook.com/gmenepal/"
      )
    }
    
    liveChat.setValue(UIImage(named:"chat")?.withRenderingMode(.alwaysOriginal),forKey:"image")
    contactNumber.setValue(UIImage(named:"ic_call")?.withRenderingMode(.alwaysOriginal),forKey:"image")
    facebook.setValue(UIImage(named:"settingsFacebook")?.withRenderingMode(.alwaysOriginal),forKey:"image")
    
    #if DEBUG
    alert.addAction(changeServer)
    alert.addAction(debug)
    #endif
    
    alert.addAction(facebook)
    alert.addAction(liveChat)
    alert.addAction(contactNumber)
    
    alert.addAction(UIAlertAction(
      title: "cancel_text".localized(),
      style: UIAlertAction.Style.cancel,
      handler: nil
      )
    )
    alert.view.tintColor = .themeText
    
    if UIDevice.current.userInterfaceIdiom == .pad {
      if let popoverController = alert.popoverPresentationController {
        popoverController.sourceView = target.view
        popoverController.sourceRect = CGRect(
          x: target.view.bounds.midX,
          y: target.view.bounds.midY,
          width: 0,
          height: 0
        )
        
        popoverController.permittedArrowDirections = []
        target.present(alert, animated: true, completion: nil)
      }
    } else {
      target.present(alert, animated: true, completion: nil)
    }
    
    guard
      let label = (liveChat.value(forKey: "__representer")as? NSObject)?.value(forKey: "label") as? UILabel
      else { return }
    
    var appearance = BadgeAppearance()
    appearance.distanceFromCenterX = (label.intrinsicContentSize.width / 2) + 10
    appearance.distanceFromCenterY = -(label.intrinsicContentSize.height / 2)
    
    let message = messageCount != 0 ? "\(messageCount)" : nil
    label.badge(text: message, appearance: appearance)
  }
  
  private func startCall(contactNumber: String) {
    if let url = URL(string: "tel://\(contactNumber.removeWhitespacesInBetween())"),
      UIApplication.shared.canOpenURL(url) {
      UIApplication.shared.open(url)
    }
  }
}

// MARK: ChannelPluginDelegate
extension CSManagement: ChannelPluginDelegate {
  func onChangeBadge(count: Int) {
    messageCount = count
  }
  
  func onReceivePush(event: PushEvent) {
    //configure your view with push event data
    //and display
    print("event: \(event)")
  }
}