Merge branch 'develop' into release/#70-week4-demo

Author: hsw1920

PhotoGether/PresentationLayer/WaitingRoomFeature/WaitingRoomFeature/Source/ViewController/WaitingRoomViewController.swift

@@ -126,6 +126,42 @@ public final class WaitingRoomViewController: BaseViewController, ViewController
         output.shouldShowToast.sink { [weak self] message in
             print(message)
         }.store(in: &cancellables)
+        
+        output.localVideo.sink { [weak self] localVideoView in
+            guard let self else { return }
+            var snapshot = self.participantsCollectionViewController.dataSource.snapshot()
+            var items = snapshot.itemIdentifiers
+            
+            var newItem = SectionItem(position: .host, nickname: "나는 호스트", videoView: localVideoView)
+
+            guard let hostIndex = items.firstIndex(where: { $0.position == .host }) else { return }
+            items.remove(at: hostIndex)
+            items.insert(newItem, at: hostIndex)
+            
+            snapshot.appendItems(items, toSection: 0)
+            self.participantsCollectionViewController.dataSource.apply(snapshot, animatingDifferences: true)
+        }.store(in: &cancellables)
+        
+        output.remoteVideos.sink { [weak self] remoteVideoViews in
+            guard let self else { return }
+            guard let remoteVideoView = remoteVideoViews.first else { return }
+            
+            var snapshot = self.participantsCollectionViewController.dataSource.snapshot()
+            var items = snapshot.itemIdentifiers
+            
+            var newItem = SectionItem(position: .guest3, nickname: "나는 게스트", videoView: remoteVideoView)
+
+            guard let guestIndex = items.firstIndex(where: { $0.position == .guest3 }) else { return }
+            items.remove(at: guestIndex)
+            items.insert(newItem, at: guestIndex)
+            
+            snapshot.appendItems(items, toSection: 0)
+            self.participantsCollectionViewController.dataSource.apply(snapshot, animatingDifferences: true)
+        }.store(in: &cancellables)
+        
+        output.shouldShowToast.sink { [weak self] message in
+            print(message)
+        }.store(in: &cancellables)
     }
 
     private func setPlaceHolder() {

PhotoGether/PresentationLayer/WaitingRoomFeature/WaitingRoomFeatureDemo/App/SceneDelegate.swift

@@ -51,7 +51,7 @@ class SceneDelegate: UIResponder, UIWindowSceneDelegate {
         let sendOfferUseCase: SendOfferUseCase = SendOfferUseCaseImpl(
             repository: connectionRepository
         )
-        
+
         let getLocalVideoUseCase: GetLocalVideoUseCase = GetLocalVideoUseCaseImpl(
             connectionRepository: connectionRepository
         )