[GWL-162] Trinet 소켓 Providable 추가 + 테스트 코드 추가 (#177)

* add: WebSocketTaskProtocol 추가

- WebSocketTask의 모든 사용을 방지하고, 오로지 send, receive만 처리할 수 있도록 추상화했습니다.

* add: URLSessionWebSocketProtocol 추가

- URLSession에서 사용하는 WebSocketTask 메서드를 하나의 프로토콜로 추상화했습니다.
- Mocking하기 위함입니다.

* feat: TNSocketProvider 구현

* feat: WebSocketFrame 추가 및 send에 래핑

* add: SocketURL xcconfig 코드 추가

* add: Add comments

* feat: 테스트 샘플 코드 추가

* delete: 쓰지 않는 import문 삭제

* test: MockWebSocketSession 테스트 코드 추가

* chore: WebSocketFrame event 값 수정

- workout_session으로 변경 (서버 api 변경)

iOS/Projects/App/WeTri/Sources/AScene/ViewController/AViewController.swift

@@ -8,7 +8,7 @@
 
 import UIKit
 
-class AViewController: UITabBarController {
+class AViewController: UIViewController {
   override func viewDidLoad() {
     super.viewDidLoad()
 

iOS/Projects/App/WeTri/Sources/Application/SceneDelegate.swift

@@ -12,13 +12,15 @@ import UIKit
 
 final class SceneDelegate: UIResponder, UIWindowSceneDelegate {
   var window: UIWindow?
+  private var coordinating: AppCoordinating?
 
   func scene(_ scene: UIScene, willConnectTo _: UISceneSession, options _: UIScene.ConnectionOptions) {
     guard let windowScene = scene as? UIWindowScene else { return }
     let navigationController = UINavigationController()
     window = UIWindow(windowScene: windowScene)
     window?.rootViewController = navigationController
-    let coordinator = RecordFeatureCoordinator(navigationController: navigationController)
+    let coordinator = AppCoordinator(navigationController: navigationController)
+    coordinating = coordinator
     coordinator.start()
     window?.makeKeyAndVisible()
   }

iOS/Projects/App/WeTri/Sources/CScene/ViewController/CViewController.swift

@@ -6,11 +6,182 @@
 //  Copyright © 2023 kr.codesquad.boostcamp8. All rights reserved.
 //
 
+import Combine
+import Log
+import Trinet
 import UIKit
 
-class CViewController: UITabBarController {
+// MARK: - ParticipantsCodable
+
+struct ParticipantsCodable: Codable {
+  let id: UUID
+  let nickname: String
+  let message: String
+
+  init(message: String) {
+    id = .init()
+    self.message = message
+    nickname = "MyNickname"
+  }
+}
+
+// MARK: - CViewController
+
+final class CViewController: UIViewController {
+  private let returnSubject = PassthroughSubject<String, Never>()
+  private let repository = TestRepository(session: URLSession.shared)
+  private var subscriptions = Set<AnyCancellable>()
+
+  private let textField = UITextField()
+
+  private let textView: UITextView = .init()
+
   override func viewDidLoad() {
     super.viewDidLoad()
-    view.backgroundColor = .red
+
+    textView.isUserInteractionEnabled = false
+    view.addSubview(textField)
+    view.addSubview(textView)
+    textField.placeholder = "입력해주세요."
+    textField.borderStyle = .roundedRect
+    textField.delegate = self
+
+    textView.textColor = .white
+    textView.backgroundColor = .black
+    textField.translatesAutoresizingMaskIntoConstraints = false
+    textView.translatesAutoresizingMaskIntoConstraints = false
+    view.backgroundColor = .white
+    let safeArea = view.safeAreaLayoutGuide
+    let recognizer = UITapGestureRecognizer(target: self, action: #selector(tapped))
+    view.addGestureRecognizer(recognizer)
+    NSLayoutConstraint.activate(
+      [
+        textField.topAnchor.constraint(equalTo: safeArea.topAnchor, constant: 20),
+        textField.centerXAnchor.constraint(equalTo: safeArea.centerXAnchor),
+        textField.widthAnchor.constraint(equalToConstant: 240),
+        textField.heightAnchor.constraint(equalToConstant: 40),
+
+        textView.topAnchor.constraint(equalTo: safeArea.centerYAnchor),
+        textView.leadingAnchor.constraint(equalTo: safeArea.leadingAnchor),
+        textView.trailingAnchor.constraint(equalTo: safeArea.trailingAnchor),
+        textView.bottomAnchor.constraint(equalTo: safeArea.bottomAnchor),
+      ]
+    )
+    bind()
+  }
+
+  func bind() {
+    returnSubject
+      .flatMap(repository.sendMyHealth(healthData:))
+      .sink { _ in
+        Log.make().error("Completion!!!!!!")
+      } receiveValue: { _ in
+        Log.make().debug("Yay! Send successfully!")
+      }
+      .store(in: &subscriptions)
+
+    repository.fetchParticipantsRealTime()
+      .receive(on: RunLoop.main)
+      .sink { _ in
+        Log.make().error("Socket Receive Completion!!!!")
+      } receiveValue: { [weak self] dataString in
+        self?.textView.text = [self!.textView.text + dataString].joined(separator: "\n")
+        Log.make().debug("\(dataString)")
+      }
+      .store(in: &subscriptions)
+  }
+
+  @objc
+  private func tapped() {
+    textField.resignFirstResponder()
+  }
+}
+
+// MARK: UITextFieldDelegate
+
+extension CViewController: UITextFieldDelegate {
+  func textFieldShouldReturn(_ textField: UITextField) -> Bool {
+    returnSubject.send(textField.text!)
+
+    textField.text = ""
+    return true
+  }
+}
+
+// MARK: - TestRepositoryRepresentable
+
+protocol TestRepositoryRepresentable {
+  func fetchParticipantsRealTime() -> AnyPublisher<String, Error>
+  func sendMyHealth(healthData: String) -> AnyPublisher<Bool, Error>
+}
+
+// MARK: - TestRepository
+
+struct TestRepository {
+  private let provider: TNSocketProvider<TestEndPoint>
+
+  private var task: Task<Void, Error>?
+
+  private let subject: PassthroughSubject<String, Error> = .init()
+
+  init(session: URLSessionWebSocketProtocol) {
+    provider = .init(session: session, endPoint: .init())
+    task = receiveParticipantsData()
+  }
+
+  private func receiveParticipantsData() -> Task<Void, Error> {
+    return Task {
+      Log.make(with: .network).debug("receive Ready")
+      while let data = try await provider.receive() {
+        switch data {
+        case let .string(string):
+          Log.make(with: .network).debug("received \(string)")
+          subject.send(string)
+        default:
+          fatalError("절대 여기 와서는 안 됨")
+        }
+      }
+      Log.make().fault("You can't enter this line")
+    }
+  }
+}
+
+// MARK: TestRepositoryRepresentable
+
+extension TestRepository: TestRepositoryRepresentable {
+  func fetchParticipantsRealTime() -> AnyPublisher<String, Error> {
+    subject.eraseToAnyPublisher()
+  }
+
+  func sendMyHealth(healthData: String) -> AnyPublisher<Bool, Error> {
+    Future { promise in
+      Task {
+        do {
+          try await provider.send(model: ParticipantsCodable(message: healthData))
+          promise(.success(true))
+        } catch {
+          promise(.failure(error))
+        }
+      }
+    }
+    .eraseToAnyPublisher()
   }
 }
+
+// MARK: - TestEndPoint
+
+struct TestEndPoint: TNEndPoint {
+  let baseURL: String = Bundle.main.infoDictionary?["SocketURL"] as? String ?? ""
+
+  let path: String = ""
+
+  let method: TNMethod = .get
+
+  let query: Encodable? = nil
+
+  let body: Encodable? = nil
+
+  let headers: TNHeaders = [
+    .authorization(bearer: ""),
+  ]
+}

iOS/Projects/Core/Network/Sources/MockWebSocketSession.swift

@@ -0,0 +1,44 @@
+//
+//  MockWebSocketSession.swift
+//  Trinet
+//
+//  Created by 홍승현 on 11/29/23.
+//  Copyright © 2023 kr.codesquad.boostcamp8. All rights reserved.
+//
+
+import Foundation
+
+// MARK: - MockWebSocketTask
+
+public final class MockWebSocketTask: WebSocketTaskProtocol {
+  private var sentMessage: URLSessionWebSocketTask.Message?
+  private var receiveContinuation: CheckedContinuation<URLSessionWebSocketTask.Message, Never>?
+
+  public func send(_ message: URLSessionWebSocketTask.Message) async throws {
+    sentMessage = message
+    receiveContinuation?.resume(returning: message)
+  }
+
+  public func receive() async throws -> URLSessionWebSocketTask.Message {
+    if let receivedMessage = sentMessage {
+      sentMessage = nil
+      return receivedMessage
+    }
+
+    return await withCheckedContinuation { continuation in
+      receiveContinuation = continuation
+    }
+  }
+
+  public func resume() {}
+}
+
+// MARK: - MockWebSocketSession
+
+public struct MockWebSocketSession: URLSessionWebSocketProtocol {
+  var webSocketTask: MockWebSocketTask = .init()
+
+  public func webSocketTask(with _: URLRequest) -> WebSocketTaskProtocol {
+    return webSocketTask
+  }
+}

iOS/Projects/Core/Network/Sources/TNSocketProvider.swift

@@ -0,0 +1,51 @@
+//
+//  TNSocketProvider.swift
+//  Trinet
+//
+//  Created by 홍승현 on 11/29/23.
+//  Copyright © 2023 kr.codesquad.boostcamp8. All rights reserved.
+//
+
+import Foundation
+
+// MARK: - TNSocketProvidable
+
+public protocol TNSocketProvidable {
+  func send<Model: Codable>(model: Model) async throws
+  func receive() async throws -> URLSessionWebSocketTask.Message?
+}
+
+// MARK: - TNSocketProvider
+
+public struct TNSocketProvider<EndPoint: TNEndPoint>: TNSocketProvidable {
+  private let session: URLSessionWebSocketProtocol
+  private var task: WebSocketTaskProtocol?
+  private let jsonEncoder: JSONEncoder = .init()
+
+  public init(session: URLSessionWebSocketProtocol = URLSession.shared, endPoint: EndPoint) {
+    self.session = session
+    task = try? session.webSocketTask(with: endPoint.request())
+    task?.resume()
+  }
+
+  public func send(model: some Codable) async throws {
+    let frame = WebSocketFrame(data: model)
+    try await task?.send(.data(jsonEncoder.encode(frame)))
+  }
+
+  public func receive() async throws -> URLSessionWebSocketTask.Message? {
+    return try await task?.receive()
+  }
+}
+
+// MARK: - WebSocketFrame
+
+struct WebSocketFrame<T: Codable>: Codable {
+  let event: String
+  let data: T
+
+  init(event: String = "workout_session", data: T) {
+    self.event = event
+    self.data = data
+  }
+}

iOS/Projects/Core/Network/Sources/URLSessionWebSocketProtocol.swift

@@ -0,0 +1,24 @@
+//
+//  URLSessionWebSocketProtocol.swift
+//  Trinet
+//
+//  Created by 홍승현 on 11/29/23.
+//  Copyright © 2023 kr.codesquad.boostcamp8. All rights reserved.
+//
+
+import Foundation
+
+// MARK: - URLSessionWebSocketProtocol
+
+public protocol URLSessionWebSocketProtocol {
+  func webSocketTask(with request: URLRequest) -> WebSocketTaskProtocol
+}
+
+// MARK: - URLSession + URLSessionWebSocketProtocol
+
+extension URLSession: URLSessionWebSocketProtocol {
+  public func webSocketTask(with request: URLRequest) -> WebSocketTaskProtocol {
+    let socketTask: URLSessionWebSocketTask = webSocketTask(with: request)
+    return socketTask
+  }
+}

iOS/Projects/Core/Network/Sources/WebSocketTaskProtocol.swift

@@ -0,0 +1,23 @@
+//
+//  WebSocketTaskProtocol.swift
+//  Trinet
+//
+//  Created by 홍승현 on 11/29/23.
+//  Copyright © 2023 kr.codesquad.boostcamp8. All rights reserved.
+//
+
+import Foundation
+
+// MARK: - WebSocketTaskProtocol
+
+public protocol WebSocketTaskProtocol {
+  func send(_ message: URLSessionWebSocketTask.Message) async throws
+
+  func receive() async throws -> URLSessionWebSocketTask.Message
+
+  func resume()
+}
+
+// MARK: - URLSessionWebSocketTask + WebSocketTaskProtocol
+
+extension URLSessionWebSocketTask: WebSocketTaskProtocol {}