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using System;
using System.Collections.Generic;
using System.Collections.Immutable;
using System.Linq;
using System.Threading;
using Jellyfin.Database.Implementations;
using Jellyfin.Database.Implementations.Entities;
using MediaBrowser.Controller.Persistence;
using MediaBrowser.Model.Entities;
using Microsoft.EntityFrameworkCore;
namespace Jellyfin.Server.Implementations.Item;
/// <summary>
/// Manager for handling Media Attachments.
/// </summary>
/// <param name="dbProvider">Efcore Factory.</param>
public class MediaAttachmentRepository(IDbContextFactory<JellyfinDbContext> dbProvider) : IMediaAttachmentRepository
{
/// <inheritdoc />
public void SaveMediaAttachments(
Guid id,
IReadOnlyList<MediaAttachment> attachments,
CancellationToken cancellationToken)
{
using var context = dbProvider.CreateDbContext();
using var transaction = context.Database.BeginTransaction();
context.AttachmentStreamInfos.Where(e => e.ItemId.Equals(id)).ExecuteDelete();
context.AttachmentStreamInfos.AddRange(attachments.Select(e => Map(e, id)));
context.SaveChanges();
transaction.Commit();
}
/// <inheritdoc />
public IReadOnlyList<MediaAttachment> GetMediaAttachments(MediaAttachmentQuery filter)
{
using var context = dbProvider.CreateDbContext();
var query = context.AttachmentStreamInfos.AsNoTracking().Where(e => e.ItemId.Equals(filter.ItemId));
if (filter.Index.HasValue)
{
query = query.Where(e => e.Index == filter.Index);
}
return query.AsEnumerable().Select(Map).ToArray();
}
private MediaAttachment Map(AttachmentStreamInfo attachment)
{
return new MediaAttachment()
{
Codec = attachment.Codec,
CodecTag = attachment.CodecTag,
Comment = attachment.Comment,
FileName = attachment.Filename,
Index = attachment.Index,
MimeType = attachment.MimeType,
};
}
private AttachmentStreamInfo Map(MediaAttachment attachment, Guid id)
{
return new AttachmentStreamInfo()
{
Codec = attachment.Codec,
CodecTag = attachment.CodecTag,
Comment = attachment.Comment,
Filename = attachment.FileName,
Index = attachment.Index,
MimeType = attachment.MimeType,
ItemId = id,
Item = null!
};
}
}
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