Files
Musify/backend/Musify.Application/Mixes/GetMixById.cs
T
Admin 496a5f4a0b feat: recommend server-generated mixes from Musify and YouTube Music
Mixes are their own concept, not playlists: they live in their own
Mixes/MixItems tables, cannot be edited and never show up among the
user's playlists. Each item is either a Musify track or a YouTube Music
reference, so YouTube songs stream directly instead of being downloaded.

A daily Hangfire job seeds the mixes from the listening history: one
discovery mix, one daily mix and one per top artist.

The per-user YouTube filler query was already in the working tree and
rides along here because it shares files with this change.
2026-07-21 18:13:07 +02:00

31 lines
1.1 KiB
C#

using ErrorOr;
using Mediator;
using Microsoft.EntityFrameworkCore;
using Musify.Application.Contracts;
using Musify.Application.Mixes.Responses;
namespace Musify.Application.Mixes
{
public record GetMixByIdQuery(long UserId, Guid MixId)
: IQuery<ErrorOr<MixApplicationResponse>>;
public class GetMixByIdQueryHandler(IDatabase database)
: IQueryHandler<GetMixByIdQuery, ErrorOr<MixApplicationResponse>>
{
public async ValueTask<ErrorOr<MixApplicationResponse>> Handle(GetMixByIdQuery request, CancellationToken cancellationToken)
{
var mix = await database.Mixes
.AsNoTracking()
.Include(mix => mix.Items)
.SingleOrDefaultAsync(mix => mix.Id == request.MixId && mix.UserId == request.UserId, cancellationToken);
if (mix is null)
return Error.NotFound(description: $"Mix {request.MixId} was not found");
var items = mix.Items.OrderBy(item => item.Position).ToList();
return MixApplicationResponse.FromEntity(mix, items.Count, items);
}
}
}