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// Gets the track's album. This will early exit if albumData is missing.
// By default, if there's no album whose list of tracks includes this track,
// the output dependency will be null; set {notFoundMode: 'exit'} to early
// exit instead.
import {input, templateCompositeFrom} from '#composite';
import {is} from '#validators';
import {raiseOutputWithoutDependency} from '#composite/control-flow';
export default templateCompositeFrom({
annotation: `withAlbum`,
inputs: {
notFoundMode: input({
validate: is('exit', 'null'),
defaultValue: 'null',
}),
},
outputs: ['#album'],
steps: () => [
raiseOutputWithoutDependency({
dependency: 'albumData',
mode: input.value('empty'),
output: input.value({
['#album']: null,
}),
}),
{
dependencies: [input.myself(), 'albumData'],
compute: (continuation, {
[input.myself()]: track,
['albumData']: albumData,
}) =>
continuation({
['#album']:
albumData.find(album => album.tracks.includes(track)),
}),
},
raiseOutputWithoutDependency({
dependency: '#album',
output: input.value({
['#album']: null,
}),
}),
{
dependencies: ['#album'],
compute: (continuation, {'#album': album}) =>
continuation.raiseOutput({'#album': album}),
},
],
});
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