private async Task ValidateAndHandleCrateSelection()
{
//CrateChooser requests data only on click. So in order to autoselect a single crate - we need to make a request on our own
var crateChooser = GetControl <CrateChooser>("Available_Crates");
var upstreamCrates = await HubCommunicator.GetAvailableData(ActivityId, CrateDirection.Upstream, AvailabilityType.RunTime);
if (crateChooser.CrateDescriptions == null)
{
crateChooser.CrateDescriptions = upstreamCrates.AvailableCrates;
}
else
{
//elements in crate chooser that are not in upstream
var inCrateChooser = crateChooser.CrateDescriptions
.Where(y => !upstreamCrates.AvailableCrates.Any(z => z.ManifestId == y.ManifestId && z.SourceActivityId == y.SourceActivityId && z.Label == y.Label));
//elements in upstream that are not in crate chooser
var inUpstream = upstreamCrates.AvailableCrates
.Where(y => !crateChooser.CrateDescriptions.Any(z => z.ManifestId == y.ManifestId && z.SourceActivityId == y.SourceActivityId && z.Label == y.Label));
if (inUpstream.Count() > 0 || inCrateChooser.Count() > 0)
{
//check if selected crate is no more available
var old_selected = crateChooser.CrateDescriptions.FirstOrDefault(x => x.Selected);
if (old_selected != null)
{
var selected_in_upstream = upstreamCrates.AvailableCrates
.Where(a => a.Label == old_selected.Label && a.SourceActivityId == old_selected.SourceActivityId && a.ManifestId == old_selected.ManifestId)
.FirstOrDefault();
if (selected_in_upstream != null)
{
//it is available
selected_in_upstream.Selected = true;
}
}
//updated CrateChooser.CrateDescriptions
crateChooser.CrateDescriptions = upstreamCrates.AvailableCrates;
}
}
var selected = crateChooser.CrateDescriptions.FirstOrDefault(x => x.Selected);
if (selected != null)
{
SignalRowCrate(selected);
}
else
{
selected = SelectTheCrateIfThereIsOnlyOne(crateChooser);
if (selected != null)
{
SignalRowCrate(selected);
}
}
}