TungVuDuc2805

protocol ProfileSectionControllerProtocol {
    var title: String {get}
    var cells: [ProfileCellProtocol] {get set}
    var rowCount: Int {get}
    init(title: String, cells: [ProfileCellProtocol])
}

TungVuDuc2805

let wifiLoader = WifiLoader(url: URL(string: http://api.com/wifi/posts)!)
let cellularLoader = CellularLoader(url: URL(string: http://api.com/wifi/cellular)!)
let localLoader = LocalLoader()
let compositeLoader = CompositeStrategy(wifiLoader: wifiLoader, cellularLoader: cellularLoader, localLoader: localLoader)
let viewController = PostViewController(loader: compositeLoader)

TungVuDuc2805

class CompositeStrategy : Strategy {
  let wifiLoader: WifiLoader
  let cellularLoader: CellularLoader
  let localLoader: LocalLoader
  
  init(wifiLoader: WifiLoader, cellularLoader: CellularLoader, localLoader: LocalLoader){
    self.wifiLoader = wifiLoader
    self.cellularLoader = cellularLoader
    self.localLoader = localLoader
  }

TungVuDuc2805

class PostViewController {
  private let loader: Loader
  
  init(loader: Loader){
    self.loader = loader
  }
  
  func loadFeed(){
    loader.load()
  }

TungVuDuc2805

protocol Strategy {
  func algorithm()
}

class ConcreteStrategyA: Strategy {
  func algorithm() {...}
}

class ConcreteStrategyB: Strategy {
  func algorithm() {...}

TungVuDuc2805

protocol Loader {}

class RemoteLoader: Loader {...}

class LocalLoader: Loader {...}

class ViewControllerA {
  private var loader: Loader?
  
  init(){

TungVuDuc2805

class APIServce {
  
  .....
  
  func load(url: URL, completion: @escaping (Result<Article, Error>) -> Void) {
    // fetch articles from remote
  }

}

TungVuDuc2805

class HTTPClient {
  var session: URLSession = .shared
  init() {}
}

let client = HTTPClient()
client.session = URLSession(configuration: .ephemeral)

TungVuDuc2805

class ListMovieViewModel {}

class ListMovieController {
  
  private let viewModel: ListMovieViewModel
  
  init(viewModel: ListMovieViewModel) {
    self.viewModel = viewModel
  }