61 lines
2.0 KiB
C#
61 lines
2.0 KiB
C#
using Dapper;
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using ErsatzTV.Core.Domain;
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using ErsatzTV.Core.Interfaces.Repositories;
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using Microsoft.EntityFrameworkCore;
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namespace ErsatzTV.Infrastructure.Data.Repositories;
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public class ArtworkRepository : IArtworkRepository
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{
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private readonly IDbContextFactory<TvContext> _dbContextFactory;
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public ArtworkRepository(IDbContextFactory<TvContext> dbContextFactory) => _dbContextFactory = dbContextFactory;
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public async Task<List<Artwork>> GetOrphanedArtwork()
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{
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await using TvContext dbContext = await _dbContextFactory.CreateDbContextAsync();
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return await dbContext.Connection.QueryAsync<Artwork>(
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@"SELECT A.Id, A.Path FROM Artwork A
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WHERE A.ArtistMetadataId IS NULL AND A.EpisodeMetadataId IS NULL
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AND A.SeasonMetadataId IS NULL AND A.ShowMetadataId IS NULL
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AND A.MovieMetadataId IS NULL AND A.MusicVideoMetadataId IS NULL
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AND A.SongMetadataId IS NULL AND A.ChannelId IS NULL
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AND NOT EXISTS (SELECT * FROM Actor WHERE Actor.ArtworkId = A.Id)")
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.Map(result => result.ToList());
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}
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public async Task<Unit> Delete(List<Artwork> artwork)
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{
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await using TvContext dbContext = await _dbContextFactory.CreateDbContextAsync();
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IEnumerable<List<int>> chunks = Chunk(artwork.Map(a => a.Id), 100);
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foreach (List<int> chunk in chunks)
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{
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await dbContext.Connection.ExecuteAsync(
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"DELETE FROM Artwork WHERE Id IN @Ids",
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new { Ids = chunk });
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}
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return Unit.Default;
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}
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private static IEnumerable<List<T>> Chunk<T>(IEnumerable<T> collection, int size)
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{
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var count = 0;
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var chunk = new List<T>(size);
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foreach (T element in collection)
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{
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if (count++ == size)
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{
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yield return chunk;
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chunk = new List<T>(size);
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count = 1;
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}
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chunk.Add(element);
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}
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yield return chunk;
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}
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}
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