namespace NfProcessorApp.Services
{
    public class FileScanner : IFileScanner
    {
        public IEnumerable<string> ListFiles(string folderPath, string[] extensions)
        {
            return Directory
                .EnumerateFiles(folderPath)
                .Where(f => extensions.Contains(Path.GetExtension(f), System.StringComparer.OrdinalIgnoreCase))
                .OrderBy(f => f);
        }
    }
}