private async Task RecursivelyUpdateParent(SkyDriveDataCommon item)
{
var source = await SkyDriveDataSource.GetInstance();
if (item.UniqueId == source.Root)
{
return;
}
var updatedItem = await UpdateItem(item);
if (updatedItem != null)
{
//update parent
await RecursivelyUpdateParent(FolderCollection[updatedItem.Parent_id]);
}
}
private async Task <SkyDriveDataCommon> GetUpdatedMetadata(SkyDriveDataCommon item)
{
SkyDriveDataSource source = await SkyDriveDataSource.GetInstance();
SkyDriveDataCommon updatedItem;
if (item.Type == SkyDriveItemType.Folder)
{
updatedItem = await source.GetFolder(item.UniqueId);
}
else
{
updatedItem = await source.GetFile(item.UniqueId);
}
return(updatedItem);
}
private async Task <SkyDriveDataCommon> UpdateItem(SkyDriveDataCommon item)
{
var updatedItem = await GetUpdatedMetadata(item);
if (updatedItem != null)
{
if (item.Type == SkyDriveItemType.File)
{
//file
var file = FolderCollection[item.Parent_id].Items.FirstOrDefault(a => a.UniqueId == item.UniqueId);
if (file != null)
{
//update file information from server
file.Size = updatedItem.Size;
file.Updated_time = updatedItem.Updated_time;
file.Parent_id = updatedItem.Parent_id;
file.Description = updatedItem.Description;
//update parent
await RecursivelyUpdateParent(FolderCollection[updatedItem.Parent_id]);
}
}
else
{
//folder
var cachedFolder = FolderCollection[item.UniqueId];
var cachedFolderParent = FolderCollection[item.Parent_id];
SkyDriveFolder folderToUpdate = cachedFolderParent.Subalbums.FirstOrDefault(a => a.UniqueId == item.UniqueId);
if (folderToUpdate != null)
{
int index = cachedFolderParent.Subalbums.IndexOf(folderToUpdate);
cachedFolderParent.Subalbums.RemoveAt(index);
cachedFolderParent.Subalbums.Insert(index, (SkyDriveFolder)updatedItem);
}
cachedFolder.Title = updatedItem.Title;
cachedFolder.Updated_time = updatedItem.Updated_time;
cachedFolder.Count = ((SkyDriveFolder)updatedItem).Count;
cachedFolder.Size = ((SkyDriveFolder)updatedItem).Size;
cachedFolder.Parent_id = updatedItem.Parent_id;
}
}
return(updatedItem);
}
