Lesson 15

App/Course App/App/AppCoordinator.swift

@@ -6,6 +6,8 @@
 //
 
 import Combine
+import DependencyInjection
+import DesignSystem
 import UIKit
 
 final class AppCoordinator: ObservableObject, ViewControllerCoordinator, CancellablesContaining {
@@ -18,23 +20,35 @@ final class AppCoordinator: ObservableObject, ViewControllerCoordinator, Cancell
         }
     }()
 
+
     // MARK: Public properties
     var cancellables = Set<AnyCancellable>()
     var childCoordinators = [Coordinator]()
+    var container = Container()
     @Published var isSignedIn = false
 }
 
 // MARK: - Start coordinator
 extension AppCoordinator {
     func start() {
         setupAppUI()
+        assembleDependencyInjectionRegistration()
+    }
+}
+
+// MARK: - Dependency injection registration
+private extension AppCoordinator {
+    func assembleDependencyInjectionRegistration() {
+        ManagerRegistration.registerDependencies(to: container)
+        ServiceRegistration.registerDependecies(to: container)
+        StoreRegistration.registerDependencies(to: container)
     }
 }
 
 // MARK: - Factory Methods
 private extension AppCoordinator {
     func makeTabBarFlow() -> ViewControllerCoordinator {
-        let mainTabBarCoordinator = MainTabBarCoordinator()
+        let mainTabBarCoordinator = MainTabBarCoordinator(container: container)
         startChildCoordinator(mainTabBarCoordinator)
         mainTabBarCoordinator.eventPublisher.sink { [weak self] event in
             self?.handle(event)
@@ -44,7 +58,7 @@ private extension AppCoordinator {
     }
 
     func makeSignInFlow() -> ViewControllerCoordinator {
-        let signInCoordinator = SignInNavigationCoordinator()
+        let signInCoordinator = SignInNavigationCoordinator(container: container)
         startChildCoordinator(signInCoordinator)
         signInCoordinator.eventPublisher.sink { [weak self] event in
             self?.handle(event)

App/Course App/Common/Navigation/Coordinator.swift

@@ -5,10 +5,12 @@
 //  Created by Tomáš Duchoslav on 30.05.2024.
 //
 
+import DependencyInjection
 import Foundation
 
 protocol Coordinator: AnyObject, DeeplinkHandling {
     var childCoordinators: [Coordinator] { get set }
+    var container: Container { get }
     func start()
 }
 

App/Course App/Common/Protocols/Store.swift

@@ -0,0 +1,17 @@
+//
+//  Store.swift
+//  Course App
+//
+//  Created by Tomáš Duchoslav on 14.06.2024.
+//
+
+import Foundation
+
+protocol Store {
+    associatedtype State
+    associatedtype Action
+
+    @MainActor var viewState: State { get }
+
+    @MainActor func send(action: Action)
+}

App/Course App/DIRegistration/ManagerRegistration.swift

@@ -0,0 +1,37 @@
+//
+//  ManagerRegistration.swift
+//  Course App
+//
+//  Created by Tomáš Duchoslav on 14.06.2024.
+//
+
+import DependencyInjection
+import Foundation
+
+enum ManagerRegistration {
+    static func registerDependencies(to container: Container) {
+        container.autoregister(
+            type: StorageManaging.self,
+            in: .shared,
+            initializer: StorageManager.init
+        )
+
+        container.autoregister(
+            type: KeychainManaging.self,
+            in: .shared,
+            initializer: KeychainManager.init
+        )
+
+        container.autoregister(
+            type: APIManaging.self,
+            in: .shared,
+            initializer: APIManager.init
+        )
+
+        container.autoregister(
+            type: FirebaseAuthManaging.self,
+            in: .shared,
+            initializer: FirebaseAuthManager.init
+        )
+    }
+}

App/Course App/DIRegistration/ServiceRegistration.swift

@@ -0,0 +1,25 @@
+//
+//  ServiceRegistration.swift
+//  Course App
+//
+//  Created by Tomáš Duchoslav on 14.06.2024.
+//
+
+import DependencyInjection
+import Foundation
+
+enum ServiceRegistration {
+    static func registerDependecies(to container: Container) {
+        container.autoregister(
+            type: KeychainServicing.self,
+            in: .shared,
+            initializer: KeychainService.init
+        )
+
+        container.autoregister(
+            type: JokeServicing.self,
+            in: .shared,
+            initializer: JokeService.init
+        )
+    }
+}

App/Course App/DIRegistration/StoreRegistration.swift

@@ -0,0 +1,25 @@
+//
+//  StoreRegistration.swift
+//  Course App
+//
+//  Created by Tomáš Duchoslav on 15.06.2024.
+//
+
+import DependencyInjection
+import Foundation
+
+enum StoreRegistration {
+    static func registerDependencies(to container: Container) {
+        container.autoregister(
+            type: SwipingViewStore.self,
+            in: .new,
+            initializer: SwipingViewStore.init
+        )
+
+        container.autoregister(
+            type: SignInViewStore.self,
+            in: .new,
+            initializer: SignInViewStore.init
+        )
+    }
+}

App/Course App/Networking/Storage/StorageManager.swift

@@ -27,7 +27,7 @@ final class StorageManager: StorageManaging {
         }
     }
 
-    func liked(jokeId: String) async throws -> Bool {
+    func loadLiked(jokeId: String) async throws -> Bool {
         let docRef = database.collection("jokesLikes").document(jokeId)
         do {
             let document = try await docRef.getDocument()

App/Course App/Networking/Storage/StorageManaging.swift

@@ -10,4 +10,5 @@ import Foundation
 
 protocol StorageManaging {
     func storeLike(jokeId: String, liked: Bool) async throws
+    func loadLiked(jokeId: String) async throws -> Bool
 }

App/Course App/Scenes/Home/HomeViewController.swift

@@ -6,6 +6,7 @@
 //
 
 import Combine
+import DesignSystem
 import os
 import SwiftUI
 import UIKit
@@ -109,7 +110,7 @@ extension HomeViewController {
 
                 for sectionIndex in dataProvider.data.indices {
                     for jokeIndex in dataProvider.data[sectionIndex].jokes.indices {
-                        let isLiked = try await storage.liked(jokeId: dataProvider.data[sectionIndex].jokes[jokeIndex].jokeID)
+                        let isLiked = try await storage.loadLiked(jokeId: dataProvider.data[sectionIndex].jokes[jokeIndex].jokeID)
                         dataProvider.data[sectionIndex].jokes[jokeIndex].isLiked = isLiked
                     }
                 }

App/Course App/Scenes/Home/Navigation/HomeNavigationCoordinator.swift

@@ -6,10 +6,12 @@
 //
 
 import Combine
+import DependencyInjection
 import os
+import SwiftUI
 import UIKit
 
-final class HomeNavigationCoordinator: NavigationControllerCoordinator, CancellablesContaining, SwipingViewFactory {
+final class HomeNavigationCoordinator: NavigationControllerCoordinator, CancellablesContaining, SwipingViewCoordinating {
     // MARK: Private properties
     private(set) lazy var navigationController: UINavigationController = CustomNavigationController()
     private let logger = Logger()
@@ -18,10 +20,16 @@ final class HomeNavigationCoordinator: NavigationControllerCoordinator, Cancella
     // MARK: Public properties
     var childCoordinators = [Coordinator]()
     var cancellables = Set<AnyCancellable>()
+    var container: Container
 
+    // MARK: Lifecycle
     deinit {
         logger.info("Deinit HomeNavigationCoordinator")
     }
+
+    init(container: Container) {
+        self.container = container
+    }
 }
 
 // MARK: - EventEmitting
@@ -51,12 +59,12 @@ private extension HomeNavigationCoordinator {
 }
 
 // MARK: - Handling events
-private extension HomeNavigationCoordinator {
+extension HomeNavigationCoordinator {
     func handle(_ event: HomeViewEvent) {
         switch event {
         case let .itemTapped(joke):
             logger.info("Joke on home screen was tapped \(joke.text)")
-            navigationController.pushViewController(makeSwipingView(with: joke), animated: true)
+            navigationController.pushViewController(makeSwipingView(with: joke, isChildCoordinator: true), animated: true)
         }
     }
 }

App/Course App/Scenes/Navigation/MainTabBarCoordinator.swift

@@ -6,6 +6,7 @@
 //
 
 import Combine
+import DependencyInjection
 import os
 import SwiftUI
 import UIKit
@@ -19,11 +20,16 @@ final class MainTabBarCoordinator: NSObject, TabBarControllerCoordinator, Cancel
     // MARK: Public Properties
     var cancellables = Set<AnyCancellable>()
     var childCoordinators = [Coordinator]()
+    var container: Container
 
     // MARK: Lifecycle
     deinit {
         logger.info("Deinit MainTabBarCoordinator")
     }
+
+    init(container: Container) {
+        self.container = container
+    }
 }
 
 // MARK: - Start the coordinator
@@ -68,7 +74,7 @@ private extension MainTabBarCoordinator {
     }
 
     func makeHomeFlow() -> ViewControllerCoordinator {
-        let homeViewCoordinator = HomeNavigationCoordinator()
+        let homeViewCoordinator = HomeNavigationCoordinator(container: container)
         startChildCoordinator(homeViewCoordinator)
         homeViewCoordinator.rootViewController.tabBarItem = UITabBarItem(
             title: "Categories",
@@ -79,14 +85,14 @@ private extension MainTabBarCoordinator {
     }
 
     func makeSwipingFlow() -> ViewControllerCoordinator {
-        let swipingNavigationCoordinator = SwipingViewNavigationCoordinator()
+        let swipingNavigationCoordinator = SwipingViewNavigationCoordinator(container: container)
         startChildCoordinator(swipingNavigationCoordinator)
         swipingNavigationCoordinator.rootViewController.tabBarItem = UITabBarItem(title: "Random", image: UIImage(systemName: "switch.2"), tag: 1)
         return swipingNavigationCoordinator
     }
 
     func makeProfileFlow() -> ViewControllerCoordinator {
-        let profileNavigationCoordinator = ProfileNavigationCoordinator()
+        let profileNavigationCoordinator = ProfileNavigationCoordinator(container: container)
         startChildCoordinator(profileNavigationCoordinator)
         profileNavigationCoordinator.eventPublisher.sink { [weak self] event in
             self?.handle(event)

App/Course App/Scenes/Onboarding/Navigation/OnboardingCoordinatorPresenting.swift

@@ -14,7 +14,7 @@ protocol OnboardingCoordinatorPresenting {
 
 extension OnboardingCoordinatorPresenting where Self: Coordinator, Self: CancellablesContaining, Self: UINavigationControllerDelegate {
     func makeOnboardingFlow(navigationController: UINavigationController? = nil) -> ViewControllerCoordinator {
-        let coordinator = OnboardingNavigationCoordinator(navigationController: navigationController)
+        let coordinator = OnboardingNavigationCoordinator(container: container, navigationController: navigationController)
         startChildCoordinator(coordinator)
 
         if navigationController != nil {

App/Course App/Scenes/Onboarding/Navigation/OnboardingNavigationCoordinator.swift

@@ -6,6 +6,7 @@
 //
 
 import Combine
+import DependencyInjection
 import os
 import SwiftUI
 import UIKit
@@ -20,12 +21,14 @@ final class OnboardingNavigationCoordinator: NavigationControllerCoordinator, Ca
     // MARK: Public properties
     var cancellables = Set<AnyCancellable>()
     var childCoordinators = [Coordinator]()
+    var container: Container
 
     deinit {
         logger.info("Deinit OnboardingNavigationCoordinator")
     }
 
-    init(navigationController: UINavigationController? = nil) {
+    init(container: Container, navigationController: UINavigationController? = nil) {
+        self.container = container
         if let navigationController {
             isPushNavigation = true
             self.navigationController = navigationController

App/Course App/Scenes/Onboarding/OnboardingView.swift

@@ -6,6 +6,7 @@
 //
 
 import Combine
+import DesignSystem
 import SwiftUI
 
 struct OnboardingView: View {

App/Course App/Scenes/Profile/Navigation/ProfileNavigationCoordinator.swift

@@ -6,6 +6,7 @@
 //
 
 import Combine
+import DependencyInjection
 import os
 import SwiftUI
 import UIKit
@@ -19,11 +20,16 @@ final class ProfileNavigationCoordinator: NSObject, NavigationControllerCoordina
     // MARK: Public properties
     var cancellables = Set<AnyCancellable>()
     var childCoordinators = [Coordinator]()
+    var container: Container
 
     // MARK: Lifecycle
     deinit {
         logger.info("Deinit ProfileNavigationCoordinator")
     }
+
+    init(container: Container) {
+        self.container = container
+    }
 }
 
 // MARK: - Start coordinator