/// <summary>
/// Enumerates the given directory and filters based on specified searchPattern
/// </summary>
/// <param name="blobContainerClient">Directory to enumerate on</param>
/// <param name="searchPattern">Search pattern to apply</param>
/// <param name="prefix">Prefix to apply</param>
/// <returns>Enumerable of strings which contains all found blobs</returns>
public static IEnumerable <string> EnumerateDirectory(this BlobContainerClient blobContainerClient, string searchPattern, string prefix)
{
#region validation
if (blobContainerClient == null)
{
throw new ArgumentNullException(nameof(blobContainerClient));
}
if (string.IsNullOrEmpty(searchPattern))
{
throw new ArgumentNullException(nameof(searchPattern));
}
#endregion
var result = new List <string>();
Regex blobNameRegex = RegexFactory.CreateRegexFromSearchPattern(searchPattern);
foreach (var listBlobItem in blobContainerClient.GetBlobs(prefix: prefix))
{
string itemName = listBlobItem.Name;
if (!string.IsNullOrEmpty(itemName) && blobNameRegex.IsMatch(itemName[(itemName.LastIndexOf(DIRECTORY_SEPARATOR_CHAR + prefix + DIRECTORY_SEPARATOR_CHAR) + prefix.Length + 2)..]))
