Draw Route Line on NavigationMapView

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import UIKit
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import NbmapNavigation
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import NbmapCoreNavigation
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import NbmapDirections
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import Nbmap
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class DrawRouteLineViewController: UIViewController, NGLMapViewDelegate {
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    var navigationMapView: NavigationMapView? {
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        didSet {
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            oldValue?.removeFromSuperview()
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            if let navigationMapView = navigationMapView {
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                view.insertSubview(navigationMapView, at: 0)
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            }
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        }
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    }
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    var routes : [Route] = []
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    override func viewDidLoad() {
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        super.viewDidLoad()
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        let origin = CLLocation(latitude: 37.77440680146262, longitude: -122.43539772352648)
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        let destination = CLLocation(latitude: 37.76556957793795, longitude: -122.42409811526268)
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        self.navigationMapView = NavigationMapView(frame: view.bounds)
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        navigationMapView?.userTrackingMode = .followWithHeading
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        navigationMapView?.delegate = self
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        self.view.setNeedsLayout()
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        requestRoutes(origin: origin, destination: destination)
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    }
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    func requestRoutes(origin: CLLocation, destination: CLLocation){
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        let options = NavigationRouteOptions(origin: origin, destination: destination)
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        /**
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         Sets whether the  route contains an alternate route
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         By default , it set to `false`
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         */
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        options.includesAlternativeRoutes = false
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        /**
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         The route classes that the calculated routes will avoid.
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         We can set an array road class to avoid.  This property can be set to `.toll`,`.ferry`,`.highway`
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         By default ,  this property is set to empty
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         */
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        options.roadClassesToAvoid = [.toll,.ferry,.highway]
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        /**
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         Set up the navigation measurement unit
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         This property should be set to `.metric` or `.imperial`
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         By default ,  this property is set to the unit follow with current system locale.
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         */
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        options.distanceMeasurementSystem = .imperial
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        /**
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         Set  specifying the primary mode of transportation for the routes.
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         This property should be set to `NBNavigationModeCar`, `NBNavigationModeAuto`, `NBNavigationModeBike`, `NBNavigationMode4W`,`NBNavigationMode2W`,`NBNavigationMode6W`, or `NBNavigationModeEscooter`. The default value of this property is `NBNavigationMode4W`,  which specifies driving directions.
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        */
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        options.profileIdentifier = NBNavigationMode.mode4W
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        /**
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         Set the  departureTime of the route , By default ,  it sets the current timestamp since from 1970
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         */
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        options.departureTime = Int(Date().timeIntervalSince1970)
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        /**
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         Set up the locale in which the route's instructions are written.
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         If you use NbmapDirections.swift with the Nbmap Directions API, this property affects the sentence contained within the `RouteStep.instructions` property, but it does not affect any road names contained in that property or other properties such as `RouteStep.name`.
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         The Navigation API can provide instructions in [a number of languages]. Set this property to `Bundle.main.preferredLocalizations.first` or `Locale.autoupdatingCurrent` to match the application's language or the system language, respectively.
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         By default, this property is set to the current system locale.
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         */
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        options.locale = Locale.autoupdatingCurrent
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        /**
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         Set map options, This property may make the ETA more accurate.  If set to `NBMapOption.valhala`, shapeFormat needs to be set to `polyline`.
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         By default , the value of this  property is `NBMapOption.none`
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         */
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        options.mapOption = NBMapOption.none
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        /**
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         Format of the data from which the shapes of the returned route and its steps are derived.
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         This property has no effect on the returned shape objects, although the choice of format can significantly affect the size of the underlying HTTP response.
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         The default value of this property is `polyline6`.
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         */
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        options.shapeFormat = .polyline6
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        Directions.shared.calculate(options) { [weak self] routes, error in
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            guard let weakSelf = self else {
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                 return
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            }
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            guard error == nil else {
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                 print(error!)
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                return
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            }
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            guard let routes = routes else { return }
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            weakSelf.navigationMapView?.showRoutes(routes)
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            guard let current = routes.first else { return }
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            weakSelf.navigationMapView?.showWaypoints(current)
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            weakSelf.routes = routes
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        }
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    }
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}