HomeViewModel.kt

fun getRoute(`for`: RouteType, onFailed: ((errorMessage: String) -> Unit)? = null) {
        val originCoordinates =
            Coordinates(userLocation?.coordinate?.first!!, userLocation?.coordinate?.second!!)
        val destinationCoordinates = Coordinates(
            mapKitManager?.selectedMarker?.position!!.latitude,
            mapKitManager?.selectedMarker?.position!!.longitude
        )
        val routeDirection =
            RouteDirection(origin = originCoordinates, destination = destinationCoordinates)

        viewModelScope.launch {
            var routeResponse: RouteResponse? = null

            when (`for`) {
                RouteType.WALK -> {
                    routeResponse = directionsRepository.getWalkingRoute(routeDirection) {
                        onFailed?.invoke(it)
                    }
                }
                RouteType.DRIVE -> {
                    routeResponse = directionsRepository.getDrivingRoute(routeDirection) {
                        onFailed?.invoke(it)
                    }
                }
                RouteType.BICYCLE -> {
                    routeResponse = directionsRepository.getBicyclingRoute(routeDirection) {
                        onFailed?.invoke(it)
                    }
                }
            }

            stepList = routeResponse?.routes?.first()?.paths?.first()?.steps

            routeResponse?.let {
                mapKitManager?.removePolylines()
                mapKitManager?.generateRoute(it)
            }
        }
    }