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// Whether or not the track has "unique" cover artwork - a cover which is
// specifically associated with this track in particular, rather than with
// the track's album as a whole. This is typically used to select between
// displaying the track artwork and a fallback, such as the album artwork
// or a placeholder. (This property is named hasUniqueCoverArt instead of
// the usual hasCoverArt to emphasize that it does not inherit from the
// album.)
//
// withHasUniqueCoverArt is based only around the presence of *specified*
// cover artist contributions, not whether the references to artists on those
// contributions actually resolve to anything. It completely evades interacting
// with find/replace.
import {input, templateCompositeFrom} from '#composite';
import {raiseOutputWithoutDependency, withResultOfAvailabilityCheck}
from '#composite/control-flow';
import {fillMissingListItems, withFlattenedList, withPropertyFromList}
from '#composite/data';
import withPropertyFromAlbum from './withPropertyFromAlbum.js';
export default templateCompositeFrom({
annotation: 'withHasUniqueCoverArt',
outputs: ['#hasUniqueCoverArt'],
steps: () => [
{
dependencies: ['disableUniqueCoverArt'],
compute: (continuation, {disableUniqueCoverArt}) =>
(disableUniqueCoverArt
? continuation.raiseOutput({
['#hasUniqueCoverArt']: false,
})
: continuation()),
},
withResultOfAvailabilityCheck({
from: 'coverArtistContribs',
mode: input.value('empty'),
}),
{
dependencies: ['#availability'],
compute: (continuation, {
['#availability']: availability,
}) =>
(availability
? continuation.raiseOutput({
['#hasUniqueCoverArt']: true,
})
: continuation()),
},
withPropertyFromAlbum({
property: input.value('trackCoverArtistContribs'),
internal: input.value(true),
}),
withResultOfAvailabilityCheck({
from: '#album.trackCoverArtistContribs',
mode: input.value('empty'),
}),
{
dependencies: ['#availability'],
compute: (continuation, {
['#availability']: availability,
}) =>
(availability
? continuation.raiseOutput({
['#hasUniqueCoverArt']: true,
})
: continuation()),
},
raiseOutputWithoutDependency({
dependency: 'trackArtworks',
mode: input.value('empty'),
output: input.value({'#hasUniqueCoverArt': false}),
}),
withPropertyFromList({
list: 'trackArtworks',
property: input.value('artistContribs'),
internal: input.value(true),
}),
// Since we're getting the update value for each artwork's artistContribs,
// it may not be set at all, and in that case won't be exposing as [].
fillMissingListItems({
list: '#trackArtworks.artistContribs',
fill: input.value([]),
}),
withFlattenedList({
list: '#trackArtworks.artistContribs',
}),
withResultOfAvailabilityCheck({
from: '#flattenedList',
mode: input.value('empty'),
}).outputs({
'#availability': '#hasUniqueCoverArt',
}),
],
});
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