Swift network identifier class

NetworkIdentifier.swift

//
//  NetworkIdentifier.swift
//  networkIdentifier
//
//  Created by George Ananda on 29/03/19.
//  Copyright © 2019 George Ananda. All rights reserved.
//

import Foundation
import SystemConfiguration.CaptiveNetwork

struct NetworkInfo {
    let interface: String
    let ssid: String
    let bssid: String
}

class NetworkIdentifier {
    static var main = NetworkIdentifier()

    private init() {
    }

    func getNetworkInfos() -> [NetworkInfo] {
        guard let interfaceNames = CNCopySupportedInterfaces() as? [String] else {
            return []
        }

        let networkInfos: [NetworkInfo] = interfaceNames.compactMap {
            name in
            guard let info = CNCopyCurrentNetworkInfo(name as CFString) as? [String: AnyObject] else {
                return nil
            }
            guard let ssid = info[kCNNetworkInfoKeySSID as String] as? String else {
                return nil
            }
            guard let bssid = info[kCNNetworkInfoKeyBSSID as String] as? String else {
                return nil
            }
            return NetworkInfo(interface: name, ssid: ssid, bssid: bssid)
        }

        return networkInfos
    }

}