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import {empty} from '../../util/sugar.js';
import groupTracksByGroup from '../util/groupTracksByGroup.js';
export default {
contentDependencies: ['linkTrack', 'linkContribution'],
extraDependencies: ['html', 'language'],
relations(relation, tracks, groups) {
if (empty(tracks)) {
return {};
}
const trackRelations = track => ({
trackLink:
relation('linkTrack', track),
contributionLinks:
track.artistContribs.map(contrib =>
relation('linkContribution', contrib.who, contrib.what)),
});
if (empty(groups)) {
return {
flatItems: tracks.map(trackRelations),
};
}
const lists = groupTracksByGroup(tracks, groups);
return {
groupedItems:
Array.from(lists.entries()).map(([groupOrOther, tracks]) => ({
...(groupOrOther === 'other'
? {other: true}
: {groupLink: relation('linkGroup', groupOrOther)}),
items: tracks.map(trackRelations),
})),
};
},
generate(relations, {html, language}) {
// TODO: This is copy-pasted from generateTrackInfoPageContent, seems bad
const formatContributions =
(contributionLinks, {showContribution = true, showIcons = true} = {}) =>
language.formatConjunctionList(
contributionLinks.map(link =>
link.slots({showContribution, showIcons})));
const formatTrackItem = ({trackLink, contributionLinks}) =>
html.tag('li',
language.$('trackList.item.withArtists', {
track: trackLink,
by:
html.tag('span', {class: 'by'},
language.$('trackList.item.withArtists.by', {
artists:
formatContributions(contributionLinks, {
showContribution: false,
showIcons: false,
}),
})),
}));
if (relations.flatItems) {
return html.tag('ul',
relations.flatItems.map(formatTrackItem));
}
return html.tag('dl',
relations.groupedItems.map(({other, groupLink, items}) => [
html.tag('dt',
(other
? language.$('trackList.group.fromOther')
: language.$('trackList.group', {
group: groupLink
}))),
html.tag('dd',
html.tag('ul',
items.map(formatTrackItem))),
]));
},
};
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