/// <summary>
/// This function allows to synchronize a local folder with an folder exists in the cloud storage
/// and vice versa. The local folder and the target folder has to be created before.
/// </summary>
/// <param name="srcFolder"></param>
/// <param name="tgtFolder"></param>
/// <param name="flags"></param>
/// <returns></returns>
public Boolean SynchronizeFolder(DirectoryInfo srcFolder, ICloudDirectoryEntry tgtFolder, SyncFolderFlags flags)
{
// init ret value
Boolean bRet = true;
// init helper parameter
Boolean bRecursive = ((flags & SyncFolderFlags.Recursive) != 0);
// init the differ
DirectoryDiff diff = new DirectoryDiff(srcFolder, tgtFolder);
// build the diff results
List <DirectoryDiffResultItem> res = diff.Compare(bRecursive);
// process the diff result
foreach (DirectoryDiffResultItem item in res)
{
switch (item.compareResult)
{
case ComparisonResult.Identical:
{
continue;
}
case ComparisonResult.MissingInLocalFolder:
{
// check of the upload flag was set
if ((flags & SyncFolderFlags.DownloadItems) != SyncFolderFlags.DownloadItems)
{
continue;
}
// copy remote to local or create path
// 1. get the rel path
String relPath;
if (item.remoteItem is ICloudDirectoryEntry)
{
relPath = CloudStorage.GetFullCloudPath(tgtFolder, item.remoteItem, '\\');
}
else
{
relPath = CloudStorage.GetFullCloudPath(tgtFolder, item.remoteItem.Parent, '\\');
}
// 2. ensure the directory exists
String tgtPath = Path.Combine(srcFolder.FullName, relPath);
if (!Directory.Exists(tgtPath))
{
Directory.CreateDirectory(tgtPath);
}
// 3. download file if needed
if (!(item.remoteItem is ICloudDirectoryEntry))
{
DownloadFile(item.remoteItem.Parent, item.remoteItem.Name, tgtPath);
}
break;
}
case ComparisonResult.MissingInRemoteFolder:
{
// check of the upload flag was set
if ((flags & SyncFolderFlags.UploadItems) != SyncFolderFlags.UploadItems)
{
continue;
}
// copy local to remote
// 1. get the rel path
String relPath;
if ((item.localItem.Attributes & FileAttributes.Directory) == FileAttributes.Directory)
{
relPath = item.localItem.FullName.Remove(0, srcFolder.FullName.Length);
}
else
{
relPath = Path.GetDirectoryName(item.localItem.FullName).Remove(0, srcFolder.FullName.Length);
}
// 2. convert delimit
relPath = relPath.Replace(Path.DirectorySeparatorChar, '/');
// 3. ensure the directory exists
ICloudDirectoryEntry realTarget = null;
if (relPath.Length == 0)
{
realTarget = tgtFolder;
}
else
{
if (relPath[0] == '/')
{
relPath = relPath.Remove(0, 1);
}
//check if subfolder exists, if it doesn't, create it
realTarget = GetFolder(relPath, tgtFolder) ?? CreateFolderEx(relPath, tgtFolder);
}
// 4. check target
if (realTarget == null)
{
bRet = false;
continue;
}
// 5. upload file if needed
if ((item.localItem.Attributes & FileAttributes.Directory) != FileAttributes.Directory)
{
if (UploadFile(item.localItem.FullName, realTarget) == null)
{
bRet = false;
}
}
break;
}
case ComparisonResult.SizeDifferent:
{
throw new NotImplementedException();
}
}
}
return(bRet);
}
