/// <summary>
/// Iterates trough all Index Elements and checks wheter the still exist
/// If not they have been deleted locally and will be removed on the server
/// </summary>
/// <param name="dto"></param>
/// <param name="client"></param>
/// <param name="logger"></param>
/// <param name="indexManager"></param>
private void DetectLocalDeletedElements(CancellationToken cancleToken, Configuration dto, ISyncClient client, ILogger logger, SyncIndexManager indexManager)
{
IEnumerable <SyncIndexElementDTO> indexElements = indexManager.GetOrCreateIndexFile();
List <SyncIndexElementDTO> removeElements = new List <SyncIndexElementDTO>();
foreach (SyncIndexElementDTO element in indexElements)
{
if (cancleToken.IsCancellationRequested)
{
return;
}
bool exists = true;
string absolutePath = dto.Local.LocalSyncDir + element.ReleativeFilePath;
try
{
if (element.ElementType.Equals(SyncElementType.File))
{
exists = File.Exists(absolutePath);
}
else if (element.ElementType.Equals(SyncElementType.Directory))
{
exists = Directory.Exists(absolutePath);
}
} catch (Exception exc) { _logger.Error("Error occured while checking " + element.ElementType + "existance: ", exc); }
if (!exists)
{
_logger.Debug(element.ElementType + " " + element.ReleativeFilePath + " does not exist anymore. Will be deleted from server and index.");
removeElements.Add(element);
}
}
//Get List of Directories that are contained in the removeElements list
List <SyncIndexElementDTO> directories = removeElements.Where(x => x.ElementType == SyncElementType.Directory).ToList();
foreach (SyncIndexElementDTO element in directories)
{
//remove all Elements that are contained in removeElements list and
//are part of this Directory
removeElements.RemoveAll(x => x.ReleativeFilePath.Length > element.ReleativeFilePath.Length &&
x.ReleativeFilePath.Substring(0, element.ReleativeFilePath.Length) == element.ReleativeFilePath);
}
//Remove all elements that can be removed
foreach (SyncIndexElementDTO element in removeElements)
{
if (client.Remove(cancleToken, element.ReleativeFilePath))
{
//If its a Directory delete all Elements that are contained in this Directory
//From the index!
if (element.ElementType == SyncElementType.Directory)
{
indexManager.RemoveAll(x => x.ReleativeFilePath.Length >= element.ReleativeFilePath.Length &&
x.ReleativeFilePath.Substring(0, element.ReleativeFilePath.Length) == element.ReleativeFilePath);
}
else
{
indexManager.Remove(element);
}
}
}
}
