/// <summary>
/// Executes a copy operation awaits it and reloads the target folder into the cache.
/// </summary>
/// <param name="content">The item to be moved into the folder</param>
/// <param name="target">The target folder</param>
/// <param name="isRetrying">Determines if the method is retrying after an unauthorized response</param>
/// <exception cref="TaskCanceledException">Throws exception upon canceling the monitoring task</exception>
/// <returns>The pasted item</returns>
public async Task <DriveItem> ExecuteAsync(DriveItem content, DriveFolder target, bool isRetrying)
{
using (var client = new HttpClient())
{
var url = new Url(DriveService.BaseUrl)
.AppendPathSegments("items", content.Id, "copy");
var request = new HttpRequestMessage(HttpMethod.Post, url.ToUri());
request.Headers.Authorization = AuthService.Instance.CreateAuthenticationHeader();
var requestContent = new ClipboardItem
{
Name = content.Name,
ParentReference = new ParentReference
{
DriveId = DriveService.Instance.DriveId,
Id = target.Id
}
};
var json = JsonConvert.SerializeObject(requestContent);
request.Content = new StringContent(json, Encoding.UTF8, "application/json");
var response = await Task.Run(() => client.SendAsync(request));
if (response.IsSuccessStatusCode)
{
var operationUri = response.Headers.Location;
// Adding cancellation token for the operation
var tokenSource = new CancellationTokenSource();
DriveService.Instance.CurrentOperations.Add(tokenSource);
// Waiting for the copying to end
var result = await DriveService.AwaitOperationAsync(operationUri, tokenSource.Token);
// Removing the cancellation token as the operation already ended
DriveService.Instance.CurrentOperations.Remove(tokenSource);
//This reloads the target folder into the cache to update its values
await DriveService.Instance.LoadItemAsync <DriveFolder>(target.Id);
// This results the item to be updated in the cache
return(await DriveService.Instance.GetItemAsync(result.ResourceId));
}
if (response.StatusCode == HttpStatusCode.Unauthorized && !isRetrying)
{
await AuthService.Instance.LoginAsync();
return(await ExecuteAsync(content, target, true));
}
throw new WebException(await response.Content.ReadAsStringAsync());
}
}
