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// Gets all the art tags which are ancestors of this one as a "baobab tree" -
// what you'd typically think of as roots are all up in the air! Since this
// really is backwards from the way that the art tag tree is written in data,
// chances are pretty good that there will be many of the exact same "leaf"
// nodes - art tags which don't themselves have any ancestors. In the actual
// data structure, each node is a Map, with keys for each ancestor and values
// for each ancestor's own baobab (thus a branching structure, just like normal
// trees in this regard).
import {input, templateCompositeFrom} from '#composite';
import {raiseOutputWithoutDependency} from '#composite/control-flow';
import {withReverseReferenceList} from '#composite/wiki-data';
export default templateCompositeFrom({
annotation: `withAncestorArtTagBaobabTree`,
outputs: ['#ancestorArtTagBaobabTree'],
steps: () => [
withReverseReferenceList({
data: 'artTagData',
list: input.value('directDescendantArtTags'),
}).outputs({
['#reverseReferenceList']: '#directAncestorArtTags',
}),
raiseOutputWithoutDependency({
dependency: '#directAncestorArtTags',
mode: input.value('empty'),
output: input.value({'#ancestorArtTagBaobabTree': {}})
}),
{
dependencies: ['#directAncestorArtTags'],
compute: (continuation, {
['#directAncestorArtTags']: directAncestorArtTags,
}) => continuation({
['#ancestorArtTagBaobabTree']:
new Map(
directAncestorArtTags
.map(artTag => [artTag, artTag.ancestorArtTagBaobabTree])),
}),
},
],
});
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