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import {atOffset, empty} from '#sugar';
export default {
query(album, track) {
const query = {};
const index =
(track
? album.tracks.indexOf(track)
: null);
query.previousTrack =
(track
? atOffset(album.tracks, index, -1)
: null);
query.nextTrack =
(track
? atOffset(album.tracks, index, +1)
: null);
return query;
},
relations: (relation, query, album, _track) => ({
switcher:
relation('generateInterpageDotSwitcher'),
previousLink:
relation('generatePreviousLink'),
nextLink:
relation('generateNextLink'),
previousTrackLink:
(query.previousTrack
? relation('linkTrack', query.previousTrack)
: null),
nextTrackLink:
(query.nextTrack
? relation('linkTrack', query.nextTrack)
: null),
albumGalleryLink:
relation('linkAlbumGallery', album),
albumCommentaryLink:
relation('linkAlbumCommentary', album),
}),
data: (query, album, track) => ({
hasMultipleTracks:
album.tracks.length > 1,
hasSubstantialCommentaryPage:
album.tracks.some(track => !empty(track.commentary)),
galleryIsStub:
album.tracks.every(t => !t.hasUniqueCoverArt),
isTrackPage:
!!track,
}),
slots: {
showTrackNavigation: {type: 'boolean', default: false},
showExtraLinks: {type: 'boolean', default: false},
currentExtra: {
validate: v => v.is('gallery', 'commentary'),
},
},
generate(data, relations, slots, {html, language}) {
const albumNavCapsule = language.encapsulate('albumPage.nav');
const trackNavCapsule = language.encapsulate('trackPage.nav');
const previousLink =
data.isTrackPage &&
relations.previousLink.slot('link', relations.previousTrackLink);
const nextLink =
data.isTrackPage &&
relations.nextLink.slot('link', relations.nextTrackLink);
const galleryLink =
(!data.galleryIsStub ||
slots.currentExtra === 'gallery') &&
relations.albumGalleryLink.slots({
attributes: {class: slots.currentExtra === 'gallery' && 'current'},
content: language.$(albumNavCapsule, 'gallery'),
});
const commentaryLink =
(data.hasSubstantialCommentaryPage ||
slots.currentExtra === 'commentary') &&
relations.albumCommentaryLink.slots({
attributes: {class: slots.currentExtra === 'commentary' && 'current'},
content: language.$(albumNavCapsule, 'commentary'),
});
const randomLink =
data.hasMultipleTracks &&
html.tag('a',
{id: 'random-button'},
{href: '#', 'data-random': 'track-in-sidebar'},
(data.isTrackPage
? language.$(trackNavCapsule, 'random')
: language.$(albumNavCapsule, 'randomTrack')));
return relations.switcher.slots({
links: [
slots.showTrackNavigation &&
previousLink,
slots.showTrackNavigation &&
nextLink,
slots.showExtraLinks &&
galleryLink,
slots.showExtraLinks &&
commentaryLink,
slots.showTrackNavigation &&
randomLink,
],
});
},
};
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