class StarWarsAPI: JSONReactiveAPI {
    func getRoot() -> Single<Root> {
        return request(url: absoluteURL(""))
    }
    func getPeople(url: URL) -> Single<PagedResponse<Person>> {
        return request(url: url)
    }
    func getFilms(url: URL) -> Single<PagedResponse<Film>> {
        return request(url: url)
    }
    func getPlanets(url: URL) -> Single<PagedResponse<Planet>> {
        return request(url: url)
    }
    func getSpecies(url: URL) -> Single<PagedResponse<Specie>> {
        return request(url: url)
    }
    func getVehicles(url: URL) -> Single<PagedResponse<Vehicle>> {
        return request(url: url)
    }
    func getStarships(url: URL) -> Single<PagedResponse<Starship>> {
        return request(url: url)
    }
}

struct Film: Codable, Hashable {
    let title: String
    let episode_id: Int
    let opening_crawl: String
    let director: String
    let producer: String
    let release_date: String
    let species: [URL]
    let starships: [URL]
    let vehicles: [URL]
    let characters: [URL]
    let planets: [URL]
    let url: URL
}

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
    private static let baseURL = URL(string: "https://gotev.github.io/swapi-android")!
    var window: UIWindow?
    var client: StarWarsAPI!
    func setupReactiveAPI() {
        let appVersion = Bundle.main.infoDictionary?["CFBundleShortVersionString"] as! String
        let sessionConfig = URLSessionConfiguration.default
        sessionConfig.httpAdditionalHeaders = ["User-Agent": "ReactiveAPIDemo/\(appVersion)"]
        client = StarWarsAPI(session: URLSession(configuration: sessionConfig).rx,
                             decoder: JSONDecoder(),
                             baseUrl: AppDelegate.baseURL)
    }
    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        setupReactiveAPI()
        //your other initialization code. Simply inject client where you need it
    }
}

client.getRoot()
    .map { root in
        return [
            ViewModelData(title: "Films", subtitle: "All the films in the saga", url: root.films),
            ViewModelData(title: "People", subtitle: "Meet the characters", url: root.people),
            ViewModelData(title: "Planets", subtitle: "Discover new worlds", url: root.planets),
            ViewModelData(title: "Species", subtitle: "Extend your imagination", url: root.species),
            ViewModelData(title: "Vehicles", subtitle: "Take a ride", url: root.vehicles),
            ViewModelData(title: "Starships", subtitle: "Reach distant places fast", url: root.starships)
        ]
    }
    .asDriver(onErrorRecover: { error in
        print("Something bad happened: \(error)")
        return Driver.empty()
    })
    .drive(onNext: { data in
        // populate UI with the data
    })
    .disposed(by: disposeBag)