SomeViewController2.swift

final class SomeViewController: UIViewController {
        
    private var cards: [CardModel] = []
    private let cardService: CardModelService
    
    init(cardService: CardModelService) {
        self.cardService = cardService
        super.init(nibName: nil, bundle: .main)
    }
    
    required init?(coder: NSCoder) {
        fatalError()
    }
    
    override func viewDidLoad() {
        super.viewDidLoad()
        cardService.fetchCardModels { [weak self] result in
            switch result {
            case .success(let cards):
                self?.cards = cards
            case .failure(let failure):
                print(failure)
            }
        }
    }
}

// From Home Screen
let homeService: CardModelService = HomeService.shared
let viewController: SomeViewController = SomeViewController(cardService: homeService)

// From Profile Screen
let profileService: CardModelService = ProfileService.shared
let viewController: SomeViewController = SomeViewController(cardService: profileService)

// From Cart Screen
let cartService: CardModelService = CartService.shared
let viewController: SomeViewController = SomeViewController(cardService: cartService)