43 lines
1.7 KiB
C#
43 lines
1.7 KiB
C#
using ErrorOr;
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using Mediator;
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using Microsoft.EntityFrameworkCore;
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using Musify.Application.Contracts;
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using Musify.Application.Shared;
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using Musify.Application.Tracks.Responses;
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using X.PagedList;
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using X.PagedList.EF;
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namespace Musify.Application.Likes;
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public record GetLikedTracksQuery(
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long UserId,
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int PageNumber,
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int PageSize)
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: IQuery<ErrorOr<PaginatedResponse<TrackApplicationResponse>>>;
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public class GetLikedTracksQueryHandler(IDatabase database)
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: IQueryHandler<GetLikedTracksQuery, ErrorOr<PaginatedResponse<TrackApplicationResponse>>>
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{
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public async ValueTask<ErrorOr<PaginatedResponse<TrackApplicationResponse>>> Handle(GetLikedTracksQuery request, CancellationToken cancellationToken)
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{
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var likesQuery = database.TrackLikes
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.AsNoTracking()
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.Include(like => like.Track.Owner)
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.Include(like => like.Track.Tags)
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.Where(like => like.UserId == request.UserId);
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var totalCount = await likesQuery.CountAsync(cancellationToken);
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var pagedEntities = await likesQuery
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.OrderByDescending(like => like.CreatedAt)
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.Select(like => new { like.Track, ListensCount = like.Track.ListeningHistories.Count(l => l.IsCounted) })
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.ToPagedListAsync(request.PageNumber, request.PageSize, totalCount, cancellationToken);
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var pagedTracks = new StaticPagedList<TrackApplicationResponse>(
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pagedEntities.Select(x => TrackApplicationResponse.FromEntity(x.Track, x.ListensCount)),
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pagedEntities.PageNumber, pagedEntities.PageSize, pagedEntities.TotalItemCount);
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return PaginatedResponse<TrackApplicationResponse>.FromPagedList(pagedTracks);
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}
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}
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