CollectionItemsViewModelDependencyManager.swift

protocol CollectionItemsViewModelDependencyManager {
    var dependencies: [ViewDependency] { get }
    
    func mapModelTypeNameToIdentifier(_ fullTypeName: String) -> String
    func reuseIdentifier(for model: CollectionItemViewModel) -> String
    func resolveIdentifier(forModelTypeUsingUnusualNaming fullTypeName: String) -> String
}

extension CollectionItemsViewModelDependencyManager {
    func reuseIdentifier(for model: CollectionItemViewModel) -> String {
        let typeName = String(describing: type(of: model))
        
        return mapModelTypeNameToIdentifier(typeName)
    }
    
    func mapModelTypeNameToIdentifier(_ fullTypeName: String) -> String {
        guard fullTypeName.hasSuffix("Model") else {
            return resolveIdentifier(forModelTypeUsingUnusualNaming: fullTypeName)
        }
        
        let typeName = String(fullTypeName.split(separator: ".").last!)
        let modelTailTrimmedName = typeName.dropLast(5)
                
        return String(modelTailTrimmedName)
    }
}