[feat] 콜렉션 생성 부분 이미지 처리

FLINT/Domain/Sources/Entity/Collection/CreateCollectionEntity.swift

@@ -14,11 +14,12 @@ public struct CreateCollectionEntity: Encodable {
     public let isPublic: Bool
     public let contentList: [CreateCollectionContents]
 
-    public init(imgaeUrl: String,
-                title: String,
-                description: String,
-                isPublic: Bool,
-                contentList: [CreateCollectionContents]
+    public init(
+        imgaeUrl: String,
+        title: String,
+        description: String,
+        isPublic: Bool,
+        contentList: [CreateCollectionContents]
     ) {
         self.imageUrl = imgaeUrl
         self.title = title
@@ -34,11 +35,18 @@ public extension CreateCollectionEntity {
         public let contentId: Int64
         public let isSpoiler: Bool
         public let reason: String
+        public let customImage: String?
 
-        public init(contentId: Int64, isSpoiler: Bool, reason: String) {
+        public init(
+            contentId: Int64,
+            isSpoiler: Bool,
+            reason: String,
+            customImage customImageKey: String? = nil
+        ) {
             self.contentId = contentId
             self.isSpoiler = isSpoiler
             self.reason = reason
+            self.customImage = customImageKey
         }
     }
 }

FLINT/Domain/Sources/UseCase/Collection/UploadCollectionImageUseCase.swift

@@ -0,0 +1,39 @@
+//
+//  UploadCollectionImageUseCase.swift
+//  Domain
+//
+//  Created by 소은 on 5/29/26.
+//
+
+import Combine
+import Foundation
+import UIKit
+
+import Entity
+import Repository
+
+public protocol UploadCollectionImageUseCase {
+    func callAsFunction(_ image: UIImage) -> AnyPublisher<String, Error>
+}
+
+public final class DefaultUploadCollectionImageUseCase: UploadCollectionImageUseCase {
+
+    private let storageRepository: StorageRepository
+
+    public init(storageRepository: StorageRepository) {
+        self.storageRepository = storageRepository
+    }
+
+    public func callAsFunction(_ image: UIImage) -> AnyPublisher<String, any Error> {
+        storageRepository.fetchPresignedURL(uploadType: .collectionContent, fileExtension: .png)
+            .flatMap { [storageRepository] presignedUrlInfoEntity in
+                guard let imageData = image.pngData() else {
+                    return Fail<String, Error>(error: FlintError.imageEncodingFailed).eraseToAnyPublisher()
+                }
+                return storageRepository.uploadImageToS3(imageData: imageData, uploadUrl: presignedUrlInfoEntity.uploadUrl, fileExtension: .png)
+                    .map { _ in return presignedUrlInfoEntity.key }
+                    .eraseToAnyPublisher()
+            }
+            .eraseToAnyPublisher()
+    }
+}

FLINT/FLINT/Dependency/DIContainer.swift

@@ -27,7 +27,9 @@ typealias DependencyFactory = ViewControllerFactory &
                               CreateCollectionViewModelFactory &
                               AddContentSelectViewModelFactory &
                               CollectionFolderListViewModelFactory &
-                              CollectionDetailViewModelFactory
+                              CollectionDetailViewModelFactory &
+                              StorageRepositoryFactory &
+                              UploadCollectionImageUseCaseFactory
 
 final class DIContainer: DependencyFactory {
 
@@ -54,6 +56,12 @@ final class DIContainer: DependencyFactory {
 
     lazy var presignedUrlService: any PresignedUrlService = DefaultPresignedUrlService()
 
+    // MARK: - UseCase
+
+    lazy var uploadCollectionImageUseCase: UploadCollectionImageUseCase = DefaultUploadCollectionImageUseCase(
+        storageRepository: makeStorageRepository()
+    )
+
     // MARK: - Init
 
     init() {

FLINT/FLINT/Dependency/Factory/UseCase/Collection/UploadCollectionImageUseCaseFactory.swift

@@ -0,0 +1,20 @@
+//
+//  UploadCollectionImageUseCaseFactory.swift
+//  FLINT
+//
+//  Created by 소은 on 2026.05.29.
+//
+
+import Foundation
+
+import Domain
+
+protocol UploadCollectionImageUseCaseFactory: StorageRepositoryFactory {
+    func makeUploadCollectionImageUseCase() -> UploadCollectionImageUseCase
+}
+
+extension UploadCollectionImageUseCaseFactory {
+    func makeUploadCollectionImageUseCase() -> UploadCollectionImageUseCase {
+        return DefaultUploadCollectionImageUseCase(storageRepository: makeStorageRepository())
+    }
+}

FLINT/FLINT/Dependency/Factory/ViewController/CreateCollectionViewControllerFactory+.swift

@@ -9,9 +9,13 @@ import Foundation
 
 import Presentation
 
-extension CreateCollectionViewControllerFactory where Self: CreateCollectionViewModelFactory & ViewControllerFactory {
+extension CreateCollectionViewControllerFactory where Self: CreateCollectionViewModelFactory & ViewControllerFactory & UploadCollectionImageUseCaseFactory {
     func makeCreateCollectionViewController() -> CreateCollectionViewController {
         let vm = makeCreateCollectionViewModel()
-        return CreateCollectionViewController(viewModel: vm, viewControllerFactory: self)
+        return CreateCollectionViewController(
+            viewModel: vm,
+            uploadImageUseCase: makeUploadCollectionImageUseCase(),
+            viewControllerFactory: self
+        )
     }
 }

FLINT/Presentation/Sources/View/Component/FlinerRecommendCard/CustomPageControl.swift

@@ -7,7 +7,7 @@
 
 import UIKit
 
-final class CustomPageControl: BaseView {
+public final class CustomPageControl: BaseView {
 
     // MARK: - Property