51 lines
2.0 KiB
C#
51 lines
2.0 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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using Musify.Domain.ValueObjects;
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namespace Musify.Application.Tracks;
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public record GetTracksByUserIdQuery(
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long UserId,
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string? Name,
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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 GetTracksByUserIdQueryHandler(IDatabase database)
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: IQueryHandler<GetTracksByUserIdQuery, ErrorOr<PaginatedResponse<TrackApplicationResponse>>>
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{
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public async ValueTask<ErrorOr<PaginatedResponse<TrackApplicationResponse>>> Handle(GetTracksByUserIdQuery request, CancellationToken cancellationToken)
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{
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var tracksQuery = database.UserHasTracks
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.AsNoTracking()
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.Include(ut => ut.Track.Owner)
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.Include(ut => ut.Track.Tags)
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.Where(p => p.UserId == request.UserId && p.Track.LifeCycleStatus == LifeCycleStatus.Active);
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if (!string.IsNullOrEmpty(request.Name))
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{
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var normalizedName = request.Name.Trim().ToUpperInvariant();
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tracksQuery = tracksQuery.Where(t => t.Track.NormalizedTitle.Contains(normalizedName));
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}
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var totalCount = await tracksQuery.CountAsync(cancellationToken);
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var pagedEntities = await tracksQuery
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.OrderBy(t => t.Track.CreatedAt)
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.Select(t => new { t.Track, ListensCount = t.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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