diff options
Diffstat (limited to 'src/data/composite/things/art-tag/withAllDescendantArtTags.js')
-rw-r--r-- | src/data/composite/things/art-tag/withAllDescendantArtTags.js | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/src/data/composite/things/art-tag/withAllDescendantArtTags.js b/src/data/composite/things/art-tag/withAllDescendantArtTags.js new file mode 100644 index 00000000..c643cf23 --- /dev/null +++ b/src/data/composite/things/art-tag/withAllDescendantArtTags.js @@ -0,0 +1,45 @@ +// Gets all the art tags which descend from this one - that means its own direct +// descendants, but also all the direct and indirect desceands of each of those! +// The results aren't specially sorted, but they won't contain any duplicates +// (for example if two descendant tags both route deeper to end up including +// some of the same tags). + +import {input, templateCompositeFrom} from '#composite'; +import find from '#find'; +import {unique} from '#sugar'; + +import {raiseOutputWithoutDependency} from '#composite/control-flow'; +import {withResolvedReferenceList} from '#composite/wiki-data'; + +export default templateCompositeFrom({ + annotation: `withAllDescendantArtTags`, + + outputs: ['#allDescendantArtTags'], + + steps: () => [ + raiseOutputWithoutDependency({ + dependency: 'directDescendantArtTags', + mode: input.value('empty'), + output: input.value({'#allDescendantArtTags': []}) + }), + + withResolvedReferenceList({ + list: 'directDescendantArtTags', + data: 'artTagData', + find: input.value(find.artTag), + }), + + { + dependencies: ['#resolvedReferenceList'], + compute: (continuation, { + ['#resolvedReferenceList']: directDescendantArtTags, + }) => continuation({ + ['#allDescendantArtTags']: + unique([ + ...directDescendantArtTags, + ...directDescendantArtTags.flatMap(artTag => artTag.allDescendantArtTags), + ]), + }), + }, + ], +}) |