//todo: contentmanager
//todo: taxonomies use reltype*maxdepth ?
//todo: for child contexts, do we need anything more than parentcontext, contentitem & relationships?
public async Task <IDescribeRelationshipsContext?> BuildRelationships(
ContentItem contentItem,
string sourceNodeIdPropertyName,
string sourceNodeId,
IEnumerable <string> sourceNodeLabels,
ISyncNameProvider syncNameProvider,
IContentManager contentManager,
IContentItemVersion contentItemVersion,
IDescribeRelationshipsContext?parentContext,
IServiceProvider serviceProvider)
{
var graphSyncPartSettings = syncNameProvider.GetGraphSyncPartSettings(contentItem.ContentType);
int maxDepthFromHere;
if (parentContext == null)
{
maxDepthFromHere = Math.Min(graphSyncPartSettings.VisualiserNodeDepth ?? int.MaxValue,
//todo: store in root in case changes mid flow?
_graphSyncSettings.CurrentValue.MaxVisualiserNodeDepth);
}
else
{
if (_encounteredContentTypes.Any(x => x == contentItem.ContentType))
{
return(null);
}
maxDepthFromHere = Math.Min(parentContext.MaxDepthFromHere - 1,
graphSyncPartSettings.VisualiserNodeDepth ?? int.MaxValue);
}
if (maxDepthFromHere <= 0)
{
return(null);
}
var context = new DescribeRelationshipsContext(
sourceNodeIdPropertyName, sourceNodeId, sourceNodeLabels, contentItem, maxDepthFromHere, syncNameProvider,
contentManager, contentItemVersion, parentContext, serviceProvider);
foreach (IContentItemGraphSyncer itemSyncer in _contentItemGraphSyncers)
{
//todo: allow syncers to chain or not? probably not
if (itemSyncer.CanSync(context.ContentItem))
{
await itemSyncer.AddRelationship(context);
}
}
_encounteredContentTypes.Add(contentItem.ContentType);
return(context);
}