ekazaev

public protocol Factory {

associatedtype ViewController: UIViewController

associatedtype Context

func build(with context: Context) throws -> ViewController

}

ekazaev

public protocol Factory {

    associatedtype ViewController: UIViewController

    associatedtype Context

    func build(with context: Context) throws -> ViewController

}

ekazaev

class ProductViewControllerFactory: Factory {

    func build(with productID: UUID) throws -> ProductViewController {

        let productViewController = ProductViewController(nibName: "ProductViewController", bundle: nil)
        
        productViewController.productID = productID // In general it is better to do in in the `ContextAction`, but it will be described later.
        
 return productViewController

ekazaev

class PresentModally: Action {

    func perform(viewController: UIViewController, on existingController: UIViewController, animated: Bool, completion: @escaping (_: ActionResult) -> Void) {
        guard existingController.presentedViewController == nil else {
            completion(.failure("\(existingController) is already presenting a view controller."))
            return
        }

 existingController.present(viewController, animated: animated, completion: {

ekazaev

public protocol Finder {

    associatedtype ViewController: UIViewController

    associatedtype Context

    func findViewController(with context: Context) -> ViewController?

}

ekazaev

class ProductViewControllerFinder: StackIteratingFinder {

    let options: SearchOptions

    init(options: SearchOptions = .currentAndUp) {
        self.options = options
    }

 func isTarget(_ productViewController: ProductViewController, with productID: UUID) -> Bool {

ekazaev

class LoginInterceptor: RoutingInterceptor {

    func execute(for destination: AppDestination, completion: @escaping (_: InterceptorResult) -> Void) {
        guard !LoginManager.sharedInstance.isUserLoggedIn else {
            // ...
            // Show LoginViewController and at the end of the logging in process call completion(.success) or completion(.failure("User has not been logged in."))
            // ...
            return
 }

ekazaev

class ProductViewControllerContextTask: ContextTask {

    func apply(on productViewController: ProductViewController, with productID: UUID) {
        productViewController.productID = productID
    }

}

ekazaev

class ProductViewControllerPostTask: PostRoutingTask {

    let analyticsManager: AnalyticsManager

    init(analyticsManager: AnalyticsManager) {
        self.analyticsManager = analyticsManager
    }

 func execute(on productViewController: ProductViewController, for destination: AppDestination, routingStack: [UIViewController]) {

ekazaev

class ProductArrayViewController: UITableViewController {

    let products: [UUID]?

    // UITableViewControllerDelegate methods

    override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
        guard let productID = products[indexPath.row] else {
            return