feat: memedetailviewmodel 구현

Projects/Features/MemeDetail/Sources/Presentation/MemeDetailViewModel.swift

@@ -0,0 +1,90 @@
+//
+//  MemeDetailViewModel.swift
+//  MemeDetail
+//
+//  Created by kimchansoo on 6/29/24.
+//
+
+import Foundation
+
+import Dependencies
+
+import PPACUtil
+import PPACModels
+import UIKit
+
+protocol MemeDetailRouting: AnyObject {
+  func popView()
+  func showShareView()
+}
+
+final class MemeDetailViewModel: ViewModelType, ObservableObject {
+
+  enum Action {
+    case likeButtonTapped
+    case copyButtonTapped
+    case shreButtonTapped
+    case farmemeButtonTapped
+    case naviBackButtonTapped
+  }
+
+  struct State {
+    var meme: MemeDetail
+  }
+
+  // MARK: - Properties
+
+  weak var router: MemeDetailRouting?
+  @Published var state: State
+
+  private let copyImageUseCase: CopyImageUseCase
+  private let postLikeUseCase: PostLikeUseCase
+
+
+  // MARK: - Initializers
+
+  init(
+    meme: MemeDetail,
+    router: MemeDetailRouting?,
+    copyImageUseCase: CopyImageUseCase,
+    postLikeUseCase: PostLikeUseCase
+  ) {
+    self.router = router
+    self.state = State(meme: meme)
+    self.copyImageUseCase = copyImageUseCase
+    self.postLikeUseCase = postLikeUseCase
+  }
+
+  // MARK: - Methods
+
+  func dispatch(type: Action) {
+    switch type {
+    case .likeButtonTapped:
+      postLike()
+    case .copyButtonTapped:
+      copyImage()
+    case .shreButtonTapped:
+      router?.showShareView()
+    case .farmemeButtonTapped:
+      postSavedFarmeme()
+    case .naviBackButtonTapped:
+      router?.popView()
+    }
+  }
+}
+
+private extension MemeDetailViewModel {
+  func postLike() {
+
+  }
+
+  func copyImage() {
+    // TODO: - 이미지 viewmodel이 알지 못하도록 수정
+    let imageData: Data = try! Data(contentsOf: URL(string: state.meme.imageUrlString)!)
+    copyImageUseCase.execute(data: imageData)
+  }
+
+  func postSavedFarmeme() {
+
+  }
+}