Admin
10766bbb47
Same treatment as AlbumApplicationResponse, but Track is the cleaner
case: OwnerUserId (local-only) and ExternalId (external-only) are
both genuinely exclusive to one side, so the base carries neither and
is abstract — every real value is one of the two derived types.
TrackApplicationResponse (abstract, shared fields + FromEntity dispatch)
LocalTrackApplicationResponse (+ OwnerUserId)
ExternalTrackApplicationResponse (+ ExternalId)
Hit a real gotcha along the way: the response already had an explicit
Source property, which collides with the "source" discriminator STJ's
polymorphism support injects ("contains property 'source' that
conflicts with an existing metadata property name" — only surfaced at
runtime in the Api integration tests, not at build time). Fixed by
dropping the now-redundant explicit Source field entirely; the
discriminator already serializes the identical "Local"/"YouTube"
value under the same name, so the wire contract is unchanged. Updated
the two call sites that read .Source directly (TrackSearchItemResponse
and a playlist track filter that needed flatMap instead of
filter().map() to keep the narrowing across the chain).
23 lines
1.0 KiB
C#
23 lines
1.0 KiB
C#
using Musify.Application.Contracts;
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using Musify.Domain.ValueObjects;
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namespace Musify.Application.Tracks.Responses
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{
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/// <summary>One item of a combined local/YouTube track listing. Exactly one of
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/// <see cref="Track"/> or <see cref="YouTubeSong"/> is populated: <see cref="Track"/> for
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/// anything already in the catalog (local uploads and YouTube tracks provisioned earlier),
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/// <see cref="YouTubeSong"/> for a live YouTube Music search hit that has not been
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/// provisioned yet, so it has no track id.</summary>
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public record TrackSearchItemResponse(
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TrackSource Source,
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TrackApplicationResponse? Track,
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YouTubeSongResult? YouTubeSong)
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{
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public static TrackSearchItemResponse FromTrack(TrackApplicationResponse track) =>
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new(track is ExternalTrackApplicationResponse ? TrackSource.YouTube : TrackSource.Local, track, null);
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public static TrackSearchItemResponse FromYouTubeSong(YouTubeSongResult song) =>
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new(TrackSource.YouTube, null, song);
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}
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}
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