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import {sortChronologically} from '#sort';
import {empty, filterMultipleArrays, stitchArrays} from '#sugar';
export default {
sprawl({albumData}) {
return {albumData};
},
query(sprawl, spec, property, valueMode) {
const albums =
sortChronologically(sprawl.albumData.slice());
const tracks =
albums
.map(album =>
album.tracks
.filter(track => {
switch (valueMode) {
case 'truthy': return !!track[property];
case 'array': return !empty(track[property]);
default: return false;
}
}));
filterMultipleArrays(albums, tracks,
(album, tracks) => !empty(tracks));
return {spec, albums, tracks};
},
relations(relation, query) {
return {
page: relation('generateListingPage', query.spec),
albumLinks:
query.albums
.map(album => relation('linkAlbum', album)),
trackLinks:
query.tracks
.map(tracks => tracks
.map(track => relation('linkTrack', track))),
};
},
data(query) {
return {
dates:
query.albums.map(album => album.date),
};
},
slots: {
hash: {type: 'string'},
},
generate(data, relations, slots, {language}) {
return relations.page.slots({
type: 'chunks',
chunkTitles:
stitchArrays({
albumLink: relations.albumLinks,
date: data.dates,
}).map(({albumLink, date}) =>
(date
? {
stringsKey: 'withDate',
album: albumLink,
date: language.formatDate(date),
}
: {album: albumLink})),
chunkRows:
relations.trackLinks
.map(trackLinks => trackLinks
.map(trackLink => ({
track: trackLink.slot('hash', slots.hash),
}))),
});
},
};
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