protocol ResourceCell {

    func setupResource(title: String)

    func setupResource(description: String)

    func setupResource(imageURL URL: URL)
}

struct ResourceItemViewModel: ItemViewModel {

    let resource: Resource

    let reuseIdentifier: String

    func setup(_ cell: UICollectionReusableView, in collectionView: UICollectionView, at indexPath: IndexPath) {

        guard let cell = cell as? ResourceCell else {
            return
        }

        cell.setupResource(title: self.resource.title)
        cell.setupResource(description: self.resource.description)
        if let imageURL = self.resource.imageView {
            cell.setupResource(imageURL: imageURL)
        }
    }
}

struct Resource {

    var title: String

    var description: String

    var imageView: URL?
}