zafarivaev

import UIKit

// MARK: View Input (View -> Presenter)
protocol ViewToPresenterQuotesProtocol {
var view: PresenterToViewQuotesProtocol? { get set }
var interactor: PresenterToInteractorQuotesProtocol? { get set }
var router: PresenterToRouterQuotesProtocol? { get set }
var quotesStrings: [String]? { get set }
func viewDidLoad()
func refresh()

zafarivaev

class QuotesPresenter: ViewToPresenterQuotesProtocol {
    
    // MARK: Properties
    weak var view: PresenterToViewQuotesProtocol?
    var interactor: PresenterToInteractorQuotesProtocol?
    var router: PresenterToRouterQuotesProtocol?
    
    var quotesStrings: [String]?
    
    // MARK: Inputs from view

zafarivaev

extension QuotesViewController: PresenterToViewQuotesProtocol{
    
    func onFetchQuotesSuccess() {
        print("View receives the response from Presenter and updates itself.")
        self.tableView.reloadData()
        self.refreshControl.endRefreshing()
    }
    
    func onFetchQuotesFailure(error: String) {
        print("View receives the response from Presenter with error: \(error)")

zafarivaev

import Foundation

class QuotesInteractor: PresenterToInteractorQuotesProtocol {
    
    // MARK: Properties
    weak var presenter: InteractorToPresenterQuotesProtocol?
    var quotes: [APIQuote]?
    
    func loadQuotes() {
        print("Interactor receives the request from Presenter to load quotes from the server.")

zafarivaev

extension QuotesPresenter: InteractorToPresenterQuotesProtocol {
    
    func fetchQuotesSuccess(quotes: [APIQuote]) {
        print("Presenter receives the result from Interactor after it's done its job.")
        self.quotesStrings = quotes.compactMap { $0.quote }
        view?.hideHUD()
        view?.onFetchQuotesSuccess()
    }
    
    func fetchQuotesFailure(errorCode: Int) {

zafarivaev

import UIKit

class QuotesRouter: PresenterToRouterQuotesProtocol {
    
    // MARK: Static methods
    static func createModule() -> UINavigationController {
        
        print("QuotesRouter creates the Quotes module.")
        let viewController = QuotesViewController()
        let navigationController = UINavigationController(rootViewController: viewController)

zafarivaev

// MARK: View Input (View -> Presenter)
protocol ViewToPresenterQuoteDetailProtocol {
var view: PresenterToViewQuoteDetailProtocol? { get set }
var interactor: PresenterToInteractorQuoteDetailProtocol? { get set }
var router: PresenterToRouterQuoteDetailProtocol? { get set }
func viewDidLoad()
}

// MARK: View Output (Presenter -> View)
protocol PresenterToViewQuoteDetailProtocol {

zafarivaev

class QuoteDetailViewController: UIViewController {
    
    // MARK: - Lifecycle Methods
    override func viewDidLoad() {
        super.viewDidLoad()
        setupUI()
        
        presenter?.viewDidLoad()
    }

zafarivaev

class QuoteDetailPresenter: ViewToPresenterQuoteDetailProtocol {

    // MARK: Properties
    weak var view: PresenterToViewQuoteDetailProtocol?
    var interactor: PresenterToInteractorQuoteDetailProtocol?
    var router: PresenterToRouterQuoteDetailProtocol?
    
    func viewDidLoad() {
        print("Presenter is being notified that the View was loaded.")
        interactor?.getImageDataFromURL()

zafarivaev

class QuoteDetailInteractor: PresenterToInteractorQuoteDetailProtocol {
    
    // MARK: Properties
    weak var presenter: InteractorToPresenterQuoteDetailProtocol?
    var quote: APIQuote?
    
    func getImageDataFromURL() {
        print("Interactor receives the request from Presenter to get image data from the server.")
        KingfisherService.shared.loadImageFrom(urlString: quote!.image!, success: { (data) in
            self.presenter?.getImageFromURLSuccess(quote: self.quote!, data: data)