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Diffstat (limited to 'src/content/dependencies/listGroupsByTracks.js')
-rw-r--r-- | src/content/dependencies/listGroupsByTracks.js | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/src/content/dependencies/listGroupsByTracks.js b/src/content/dependencies/listGroupsByTracks.js new file mode 100644 index 0000000..0b5e4e9 --- /dev/null +++ b/src/content/dependencies/listGroupsByTracks.js @@ -0,0 +1,55 @@ +import {sortAlphabetically, sortByCount} from '#sort'; +import {accumulateSum, filterByCount, stitchArrays} from '#sugar'; + +export default { + contentDependencies: ['generateListingPage', 'linkGroup'], + extraDependencies: ['language', 'wikiData'], + + sprawl({groupData}) { + return {groupData}; + }, + + query({groupData}, spec) { + const groups = sortAlphabetically(groupData.slice()); + const counts = + groups.map(group => + accumulateSum( + group.albums, + ({tracks}) => tracks.length)); + + filterByCount(groups, counts); + sortByCount(groups, counts, {greatestFirst: true}); + + return {spec, groups, counts}; + }, + + relations(relation, query) { + return { + page: relation('generateListingPage', query.spec), + + groupLinks: + query.groups + .map(group => relation('linkGroup', group)), + }; + }, + + data(query) { + return { + counts: query.counts, + }; + }, + + generate(data, relations, {language}) { + return relations.page.slots({ + type: 'rows', + rows: + stitchArrays({ + link: relations.groupLinks, + count: data.counts, + }).map(({link, count}) => ({ + group: link, + tracks: language.countTracks(count, {unit: true}), + })), + }); + }, +}; |