import Foundation enum ThumbnailStyle: String, CaseIterable { case large case square case small var height: Int { switch self { case .large: return 210 case .square: return 178 case .small: return 78 } } var width: Int { switch self { case .large: return 374 case .square: return 178 case .small: return 78 } } } extension ThumbnailStyle: Codable { }