Using Firebase to populate TableviewCell with Collectionview inside - swift

Question

I can populate my TableviewCell with images and upload them to Firebase successfully but not to my CollectionView inside the cell. However, I can upload them to a CollectionView on another ViewController as long as it's not inside a TableViewCell. I experimented with reloading the data but nothing appears and isn't required by the one on the other ViewController. I'm trying to get the "showcaseImages" to appear in the collectionView.
This is what I have to save the data in my structure:
func save ( userInfo: UserInfo, completion: #escaping (Result < Bool, NSError>) -> Void) {
var showcaseImagesDict = [String : String]()
userInfo.showcaseImages.forEach { showcaseImagesDict[UUID().uuidString] = $0 }
userReference.addDocument(data: ["profileImage": userInfo.profileImage, "profileName": userInfo.profileName, "showcaseImages": showcaseImagesDict
]) { (error) in
if let unwrappedError = error {
completion(.failure(unwrappedError as NSError))
}else {
completion(.success(true))
}
}
}
This is what I have to Listen:
func listen (completion : #escaping ([UserInfo]) -> Void) {
userReference.addSnapshotListener { (snapshot, error) in
guard let unwrappedSnapshot = snapshot else {return}
let documents = unwrappedSnapshot.documents
var usersInfo = [UserInfo]()
for document in documents {
let documentData = document.data()
guard
let profileImage = documentData["profileImage"] as? String,
let profileName = documentData["profileName"] as? String,
let showcaseImagesDict = documentData["showcaseImages"] as? [String : String]
else {continue}
let showcaseImages = showcaseImagesDict.map {$0.value}
let userInfo = UserInfo(profileImage: profileImage, profileName: profileName, showcaseImages: showcaseImages)
usersInfo.append(userInfo)
}
completion(usersInfo)
}
}
Heres what I have to populate the TableviewCell:
func populate(with user: UserInfo){
profileName.text = user.profileName
imageCache2?.getImage(named: user.profileImage,completion: { [weak self](image) in
self?.userImage.image = image
//self?.user = user
})
}
This is to populate CollectionViewCell:
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "CVCell", for: indexPath)
let collectionViewCell1 = cell as? CollectionViewCell
collectionViewCell1?.imageCache4 = imageCache3
let imagePath = showcaseImages[indexPath.item]
collectionViewCell1?.populate(with: imagePath)
return cell
}