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using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using Emby.Naming.Common;
using Emby.Naming.Video;
using Jellyfin.Extensions;
using MediaBrowser.Controller.Drawing;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Library;
using MediaBrowser.Controller.Providers;
using MediaBrowser.Controller.Resolvers;
using MediaBrowser.Model.Entities;
namespace Emby.Server.Implementations.Library.Resolvers
{
/// <summary>
/// Class PhotoResolver.
/// </summary>
public class PhotoResolver : ItemResolver<Photo>
{
private readonly IImageProcessor _imageProcessor;
private readonly NamingOptions _namingOptions;
private readonly IDirectoryService _directoryService;
private static readonly string[] _ignoreFiles = new[]
{
"folder",
"thumb",
"landscape",
"fanart",
"backdrop",
"poster",
"cover",
"logo",
"default"
};
/// <summary>
/// Initializes a new instance of the <see cref="PhotoResolver"/> class.
/// </summary>
/// <param name="imageProcessor">The image processor.</param>
/// <param name="namingOptions">The naming options.</param>
/// <param name="directoryService">The directory service.</param>
public PhotoResolver(IImageProcessor imageProcessor, NamingOptions namingOptions, IDirectoryService directoryService)
{
_imageProcessor = imageProcessor;
_namingOptions = namingOptions;
_directoryService = directoryService;
}
/// <summary>
/// Resolves the specified args.
/// </summary>
/// <param name="args">The args.</param>
/// <returns>Trailer.</returns>
protected override Photo? Resolve(ItemResolveArgs args)
{
if (!args.IsDirectory)
{
// Must be an image file within a photo collection
var collectionType = args.CollectionType;
if (string.Equals(collectionType, CollectionType.Photos, StringComparison.OrdinalIgnoreCase)
|| (string.Equals(collectionType, CollectionType.HomeVideos, StringComparison.OrdinalIgnoreCase) && args.LibraryOptions.EnablePhotos))
{
if (IsImageFile(args.Path, _imageProcessor))
{
var filename = Path.GetFileNameWithoutExtension(args.Path.AsSpan());
// Make sure the image doesn't belong to a video file
var files = _directoryService.GetFiles(Path.GetDirectoryName(args.Path)
?? throw new InvalidOperationException("Path can't be a root directory."));
foreach (var file in files)
{
if (IsOwnedByMedia(_namingOptions, file.FullName, filename))
{
return null;
}
}
return new Photo
{
Path = args.Path
};
}
}
}
return null;
}
internal static bool IsOwnedByMedia(NamingOptions namingOptions, string file, ReadOnlySpan<char> imageFilename)
{
return VideoResolver.IsVideoFile(file, namingOptions) && IsOwnedByResolvedMedia(file, imageFilename);
}
internal static bool IsOwnedByResolvedMedia(ReadOnlySpan<char> file, ReadOnlySpan<char> imageFilename)
=> imageFilename.StartsWith(Path.GetFileNameWithoutExtension(file), StringComparison.OrdinalIgnoreCase);
internal static bool IsImageFile(string path, IImageProcessor imageProcessor)
{
ArgumentNullException.ThrowIfNull(path);
var extension = Path.GetExtension(path.AsSpan()).TrimStart('.');
if (!imageProcessor.SupportedInputFormats.Contains(extension, StringComparison.OrdinalIgnoreCase))
{
return false;
}
var filename = Path.GetFileNameWithoutExtension(path);
if (_ignoreFiles.Any(i => filename.StartsWith(i, StringComparison.OrdinalIgnoreCase)))
{
return false;
}
return true;
}
}
}
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