73 lines
2.5 KiB
C#
73 lines
2.5 KiB
C#
using ErrorOr;
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using Mediator;
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using Microsoft.EntityFrameworkCore;
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using Microsoft.Extensions.Logging;
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using Musify.Application.Albums.Responses;
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using Musify.Application.Configuration;
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using Musify.Application.Contracts;
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using Musify.Application.Events;
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using Musify.Application.Pictures;
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using Musify.Application.Services;
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using Musify.Application.Shared;
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using Musify.Domain.Entities;
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using Musify.Domain.ValueObjects;
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namespace Musify.Application.Albums;
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public record CreateAlbumCommand(
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long UserId,
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string Title,
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string? Description,
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int? ReleaseYear,
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Guid PictureIntentId)
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: ICommand<ErrorOr<AlbumApplicationResponse>>;
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public class CreateAlbumCommandHandler(
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IEventBus eventBus,
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IDatabase database,
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UploadIntentValidator uploadIntentValidator,
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ILogger<CreateAlbumCommandHandler> logger,
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AlbumConfiguration albumConfiguration)
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: ICommandHandler<CreateAlbumCommand, ErrorOr<AlbumApplicationResponse>>
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{
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public async ValueTask<ErrorOr<AlbumApplicationResponse>> Handle(CreateAlbumCommand request, CancellationToken cancellationToken)
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{
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var userExists = await database.Users
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.AsNoTracking()
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.AnyAsync(user => user.Id == request.UserId, cancellationToken);
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if (!userExists)
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return AppErrors.NotFound("User", request.UserId);
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var prepared = await PictureSourceChange.PrepareAsync(
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uploadIntentValidator, request.PictureIntentId, request.UserId, UploadIntentPurpose.AlbumPicture, albumConfiguration, cancellationToken);
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if (prepared.IsError)
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return prepared.Errors;
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var picture = prepared.Value;
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var title = request.Title.Trim();
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var album = new Album
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{
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OwnerUserId = request.UserId,
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Title = title,
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NormalizedTitle = TextNormalizer.Normalize(title),
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Description = request.Description,
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ReleaseYear = request.ReleaseYear,
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Pictures = picture.Pictures
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};
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await database.Albums.AddAsync(album, cancellationToken);
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await eventBus.PublishAsync(
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new CreateAlbumResourcesEvent(
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album.Id, picture.Intent.Id, picture.Intent.Bucket, picture.Intent.Key, picture.FinalKey, picture.Sizes),
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cancellationToken);
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await database.SaveChangesAsync(cancellationToken);
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logger.LogInformation("Created album {AlbumId} for user {UserId}", album.Id, request.UserId);
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return AlbumApplicationResponse.FromEntity(album, trackCount: 0);
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}
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}
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