/// <summary>
/// This controls what Collection will be getting downloaded
/// </summary>
/// <param name="collection">Collection to download</param>
/// <param name="acc">Associated account</param>
public static void SwitchTo(PixivObservableCollection collection, PixivAccount acc)
{
Stop();
var src = new CancellationTokenSource();
tokens.Enqueue(src);
CurrentCollection = collection;
Task.Run(async() =>
{
try
{
while (true)
{
// check if paused
if (IsPaused)
{
await Task.Delay(500);
continue;
}
// Infinite loop that will initially call the "getItems" callback and later on "getNextItems" on the collection
IllustrationResponse r = collection.IsStarted == false ?
await collection.GetItems(acc) :
await collection.GetNextItems();
foreach (var l in r.Illustrations)
{
// go through all downloaded illustractions and wrap them up - if duplicates, take existing to save memory
src.Token.ThrowIfCancellationRequested();
// check blacklisted tag
bool containsBl = false;
foreach (var btag in MainPage.CurrentInstance.ViewModel.BlacklistedTags)
{
if (l.Tags.Count(x => x.Name.ToLower().Trim() == btag) > 0)
{
containsBl = true;
break;
}
}
IllustrationWrapper wr = null;
if (containsBl == false)
{
// continue adding it normally
if (addedIllustrations.ContainsKey(l.Id))
{
// take existing Illustration
wr = addedIllustrations[l.Id];
}
else
{
wr = new IllustrationWrapper(l, acc);
addedIllustrations.TryAdd(l.Id, wr);
}
collection.Add(wr);
}
else
{
// skip this one. It's blacklisted.
BlacklistedCount++;
}
}
}
}
catch (OperationCanceledException)
{
}
catch (EndReachedException)
{
MainPage.Logger.Info("End Reached!");
}
catch (COMException cex)
{
var cexvar = cex;
MainPage.Logger.Error(cexvar, "COM Exception!");
}
catch (LoginException lex)
{
// user is not logged in
MainPage.Logger.Error(lex, "User not logged in!");
// retry login
var vm = MainPage.CurrentInstance.ViewModel;
vm.Login(vm.Account.AuthInfo.RefreshToken);
}
catch (OffsetLimitException oex)
{
var oexvar = oex;
MainPage.Logger.Error(oexvar, "Offset limit reached!");
}
catch (Exception ex)
{
var exvar = ex;
MainPage.Logger.Error(exvar, "Unknown exception! " + exvar.Message + (exvar.InnerException != null ? exvar.InnerException.Message : ""));
}
}, src.Token);
}