39 lines
1.5 KiB
C#
39 lines
1.5 KiB
C#
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 Musify.Domain.ValueObjects;
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namespace Musify.Application.Tracks
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{
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public record GetTracksQuery(string? Name, int PageNumber, int PageSize, Genre? Genre = null)
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: IQuery<PaginatedResponse<TrackApplicationResponse>>;
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public class GetTracksQueryHandler(IDatabase database)
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: IQueryHandler<GetTracksQuery, PaginatedResponse<TrackApplicationResponse>>
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{
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public async ValueTask<PaginatedResponse<TrackApplicationResponse>> Handle(GetTracksQuery request, CancellationToken cancellationToken)
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{
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var tracksQuery = database.Tracks
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.AsNoTracking()
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.Active();
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if (!string.IsNullOrWhiteSpace(request.Name))
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{
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var normalizedName = TextNormalizer.Normalize(request.Name);
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tracksQuery = tracksQuery.Where(track => track.NormalizedTitle.Contains(normalizedName));
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}
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if (request.Genre is { } genre)
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tracksQuery = tracksQuery.Where(track => track.Tags.Any(tag => tag.Tag == genre));
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return await tracksQuery
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.OrderByDescending(track => track.CreatedAt)
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.ThenBy(track => track.Id)
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.SelectResponse()
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.ToPaginatedAsync(new PageRequest(request.PageNumber, request.PageSize), cancellationToken);
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}
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}
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}
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