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import {sortAlbumsTracksChronologically, sortContributionsChronologically}
from '#sort';
import {chunkByConditions, stitchArrays} from '#sugar';
export default {
contentDependencies: [
'generateArtistInfoPageChunkedList',
'generateArtistInfoPageTracksChunk',
],
query(artist) {
const query = {};
const allContributions = [
...artist.trackArtistContributions,
...artist.trackContributorContributions,
];
sortContributionsChronologically(
allContributions,
sortAlbumsTracksChronologically);
query.contribs =
// First chunk by (contribution) date and album.
chunkByConditions(allContributions, [
({date: date1}, {date: date2}) =>
+date1 !== +date2,
({thing: track1}, {thing: track2}) =>
track1.album !== track2.album,
]).map(contribs =>
// Then, *within* the boundaries of the existing chunks,
// chunk contributions to the same thing together.
chunkByConditions(contribs, [
({thing: thing1}, {thing: thing2}) =>
thing1 !== thing2,
]));
query.albums =
query.contribs
.map(contribs =>
contribs[0][0].thing.album);
return query;
},
relations: (relation, query, artist) => ({
chunkedList:
relation('generateArtistInfoPageChunkedList'),
chunks:
stitchArrays({
album: query.albums,
contribs: query.contribs,
}).map(({album, contribs}) =>
relation('generateArtistInfoPageTracksChunk',
artist,
album,
contribs)),
}),
generate: (relations) =>
relations.chunkedList.slots({
chunks: relations.chunks,
}),
};
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