[FIX/#177]사진 전달되는 순서 정렬해서 보내기

PhotoGether/DomainLayer/PhotoGetherDomain/PhotoGetherDomain/UseCaseImpl/CaptureVideosUseCaseImpl.swift

@@ -4,21 +4,51 @@ import DesignSystem
 
 public final class CaptureVideosUseCaseImpl: CaptureVideosUseCase {
     public func execute() -> [UIImage] {
-        guard let localImage = connectionRepository.capturedLocalVideo
-        else { return [
-            PTGImage.temp1.image,
-            PTGImage.temp2.image,
-            PTGImage.temp3.image,
-            PTGImage.temp4.image]
-        }
-        let remoteImages = connectionRepository.clients.map { $0.captureVideo() }
+        let localImage = connectionRepository.capturedLocalVideo ?? UIImage()
+
+        let localUserImageInfo = [(connectionRepository.localUserInfo?.viewPosition, localImage)]
+        let remoteUserImagesInfo = connectionRepository.clients
+            .map { ($0.remoteUserInfo?.viewPosition, $0.captureVideo()) }
 
-        return [localImage] + remoteImages
+        return sortImages(localUserImageInfo + remoteUserImagesInfo)
     }
 
     private let connectionRepository: ConnectionRepository
 
     public init(connectionRepository: ConnectionRepository) {
         self.connectionRepository = connectionRepository
     }
+
+    private func sortImages(_ images: [(viewPosition: UserInfo.ViewPosition?, image: UIImage)]) -> [UIImage] {
+        let convertedArray = images.map {
+            (position: PositionOder(rawValue: $0.viewPosition?.rawValue ?? -1),
+             image: $0.image)
+        }
+
+        // 배열의 2번 인덱스가 마지막 자리이기 때문에 nil일 경우 2로 설정했습니다
+        let sortedByViewPosition = convertedArray.sorted {
+            let lhs = $0.position?.sequence ?? 2
+            let rhs = $1.position?.sequence ?? 2
+            return lhs < rhs
+        }
+
+        return sortedByViewPosition.map { $0.image }
+    }
+}
+
+// case의 순서는 참가자의 참가 순서에 따른 화면 배치이고 sequence는 이미지 데이터 전달할 때의 배열 순서입니다
+private enum PositionOder: Int {
+    case topLeading
+    case bottomTrailing
+    case topTrailing
+    case bottomLeading
+
+    var sequence: Int {
+        switch self {
+        case .topLeading: 0
+        case .topTrailing: 1
+        case .bottomLeading: 2
+        case .bottomTrailing: 3
+        }
+    }
 }