//
//  AppDelegate.swift
//  GMERemittance
//
//  Created by Fm-user on 11/30/17.
//  Copyright © 2017 Gobal Money Express Co. Ltd. All rights reserved.
//

import UIKit
import Firebase
import FirebaseAuth
import UserNotifications
import FirebaseInstanceID
import FirebaseMessaging
import BRYXBanner
import Fabric
import Crashlytics
import AlamofireNetworkActivityLogger
import IQKeyboardManagerSwift
import Localize_Swift
import ChannelIO
import LGSideMenuController

#if DEBUG
var server: Server = .live
#else
let server: Server = .live
#endif

var destination: PushNotificationDestination? = nil

var overlayView: UIView?

enum PushNotificationDestination: String {
  case trasactionHistory = "TransactionHistory"
  case rechargeHistory = "RechargeHistory"
}

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
  
  var window: UIWindow?
  
  func application(
    _ application: UIApplication,
    didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?
  ) -> Bool {
    UIApplication.shared.applicationIconBadgeNumber = 0
    
    #if DEBUG
    NetworkActivityLogger.shared.startLogging()
    NetworkActivityLogger.shared.level = .debug
    #endif
    
    IQKeyboardManager.shared.enable = true
    IQKeyboardManager.shared.shouldResignOnTouchOutside = true
    IQKeyboardManager.shared.toolbarTintColor = .black
    
    FirebaseApp.configure()
    Fabric.with([Crashlytics.self])
    
    Fabric.sharedSDK().debug = true
    Messaging.messaging().delegate = self
    
    let center = UNUserNotificationCenter.current()
    center.delegate = self
    center.requestAuthorization(options: [.alert, .sound, .badge]) { (granted, _) in
      guard granted else { return }
      
      center.getNotificationSettings { settings in
        print("Notification settings: \(settings)")
        DispatchQueue.main.async {
          UIApplication.shared.registerForRemoteNotifications()
        }
      }
    }
    
    // Move push notification's destination
    let useInfo = launchOptions?[.remoteNotification] as? [String: AnyObject]
    destination = extractDestination(userInfo: useInfo)
    self.window?.rootViewController = LauncherScreenWireframe().getMainView()

    ChannelIO.initialize()
    
    GMEDB
      .shared
      .app
      .remove([.isOpenedTokenRenwalAlert, .isOpenedPopupNotification])
  
    StoreReviewHelper.shared.incrementAppOpenedCount()
    
    return true
  }
  
  func application(
    _ application: UIApplication,
    didReceiveRemoteNotification userInfo: [AnyHashable: Any]
  ) { }
  
  func application(
    _ application: UIApplication,
    didReceiveRemoteNotification userInfo: [AnyHashable: Any],
    fetchCompletionHandler completionHandler: @escaping (UIBackgroundFetchResult) -> Void
  ) {
    ChannelIO.handlePushNotification(userInfo) {
      completionHandler(.noData)
    }
  }
  
  func application(
    _ application: UIApplication,
    didFailToRegisterForRemoteNotificationsWithError error: Error
  ) { }
  
  func application(
    _ application: UIApplication,
    didRegisterForRemoteNotificationsWithDeviceToken deviceToken: Data
  ) {
    let deviceTokenString = deviceToken.reduce("", {$0 + String(format: "%02X", $1)})
    print("APNs device token: \(deviceTokenString)")
    
    Messaging.messaging().apnsToken = deviceToken
    
    ChannelIO.initPushToken(deviceToken: deviceToken)
  }
  
  func applicationDidEnterBackground(_ application: UIApplication) {
    let taskID = application.beginBackgroundTask(expirationHandler: nil)
    
    let language = Localize.currentLanguage()
    GMEDB.shared.app.set(language, .currentLanguage)
    
    let viewcontroller = UIViewController()
    viewcontroller.view.backgroundColor = .themeRed
    viewcontroller.view.frame = UIScreen.main.bounds
    
    overlayView = viewcontroller.view
    
    guard let view = overlayView else {return}
    
    let topView = UIApplication.shared.keyWindow?.subviews.last
    topView?.addSubview(view)
    topView?.bringSubviewToFront(view)
    
    if taskID != UIBackgroundTaskIdentifier.invalid {
      UIApplication.shared.endBackgroundTask(taskID)
    }
    
  }
  
  func applicationWillEnterForeground(_ application: UIApplication) {
    if let language = GMEDB.shared.app.string(.currentLanguage) {
      Localize.setCurrentLanguage(language)
    }
    overlayView?.removeFromSuperview()
  }
  
  func application(
    _ app: UIApplication,
    open url: URL,
    options: [UIApplication.OpenURLOptionsKey : Any] = [:]
  ) -> Bool {
    return true
  }
  
}

// MARK: - UNUserNotificationCenterDelegate
extension AppDelegate: UNUserNotificationCenterDelegate {
  func userNotificationCenter(
    _ center: UNUserNotificationCenter,
    willPresent notification: UNNotification,
    withCompletionHandler completionHandler: @escaping (UNNotificationPresentationOptions) -> Void
  ) {
    let userInfo = notification.request.content.userInfo
    
    print("Message ID: \(userInfo["gcm_message_id"] ?? "nil")")
    print(userInfo)
    
    completionHandler([
      UNNotificationPresentationOptions.alert,
      UNNotificationPresentationOptions.sound,
      UNNotificationPresentationOptions.badge
    ])
  }
  
  func userNotificationCenter(
    _ center: UNUserNotificationCenter,
    didReceive response: UNNotificationResponse,
    withCompletionHandler completionHandler: @escaping () -> Void
  ) {
    let userInfo = response.notification.request.content.userInfo
    print("Message ID: \(userInfo["gcm_message_id"] ?? "nil")")
    
    if ChannelIO.isChannelPushNotification(userInfo) {
      ChannelIO.handlePushNotification(userInfo)
    }
    
    // open push notification's destination
    guard
      window?.rootViewController is LGSideMenuController,
      let destination = extractDestination(userInfo: userInfo as? [String: AnyObject]) else {
        completionHandler()
        return
    }
    
    let baseVC = window?.rootViewController?.presentedViewController ?? window?.rootViewController
    
    DispatchQueue.main.async {
      switch destination {
      case .trasactionHistory:
        TransactionHistoryGroupWireframe().open(overseasType: .inbound, on: baseVC)
      case .rechargeHistory:
        RechargeHistoryWireframe().open(on: baseVC)
      }
    }
    
    completionHandler()
  }
}

extension AppDelegate {
  private func extractDestination(userInfo: [String : AnyObject]?) -> PushNotificationDestination? {
    guard
      let destination = userInfo?["destination"] as? String,
      let destinationType = PushNotificationDestination(rawValue: destination) else {
        return nil
    }
    
    return destinationType
  }
}

// MARK: - MessagingDelegate
extension AppDelegate: MessagingDelegate {
  func messaging(_ messaging: Messaging, didReceiveRegistrationToken fcmToken: String) {
    print("Firebase registration token: \(fcmToken)")
    
    let userInfo = ["token": fcmToken]
    NotificationCenter.default.post(
      name: Notification.Name("FCMToken"),
      object: nil,
      userInfo: userInfo
    )
  }
  
  func messaging(_ messaging: Messaging, didReceive remoteMessage: MessagingRemoteMessage) {
    print("Received data message: \(remoteMessage.appData)")
  }
}