gistfile1.txt

class CarListViewController: UIViewController {
    var presenter: CarListPresenter!
    @IBOutlet weak var tableView: UITableView!
    private var dataSource: CarListDataSource!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        dataSource = CarListDataSource()
        tableView.dataSource = dataSource
        tableView.registerNib(UINib(nibName: CarListTableViewCell.reuseIdentifier, bundle: nil), forCellReuseIdentifier: CarListTableViewCell.reuseIdentifier)
        presenter.viewDidLoad()
    }
}

extension CarListViewController: CarlistUI {
    func showCars(cars: [CarViewModel]) {
        dataSource.cars = cars
        tableView.reloadData()
    }
}

----

class CarListPresenter {
    private let ui : CarlistUI
    private let useCase: GetCarList
    init(ui: CarlistUI, useCase: GetCarList) {
        self.ui = ui
        self.useCase = useCase
    }
    
    func viewDidLoad() {
        useCase.execute { result in
            self.ui.showCars(result.value!)
        }
    }
}

---


import UIKit

class CarListDataSource: NSObject, UITableViewDataSource {
    
    var cars: [CarViewModel]?
    
    func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
        guard let cars = cars else {
            fatalError()
        }
        let cell = tableView.dequeueReusableCellWithIdentifier(CarListTableViewCell.reuseIdentifier, forIndexPath: indexPath) as! CarListTableViewCell
        cell.configureWithCarViewModel(cars[indexPath.row])
        return cell
    }
    
    func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        return cars?.count ?? 0
    }
}


-----

class CarListTableViewCell: UITableViewCell {
    
    static let reuseIdentifier = "CarListTableViewCell"
    
    @IBOutlet weak var brandLabel: UILabel!
    
    func configureWithCarViewModel(carViewModel: CarViewModel) {
        self.brandLabel.text = carViewModel.brand
    }
}

---