jellyfin-server/MediaBrowser.Server.Implementations/Library/Resolvers/Movies/BoxSetResolver.cs

using MediaBrowser.Common.Extensions;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.Entities.Movies;
using MediaBrowser.Controller.Library;
using MediaBrowser.Model.Entities;
using System;
using System.IO;

namespace MediaBrowser.Server.Implementations.Library.Resolvers.Movies
{
    /// <summary>
    /// Class BoxSetResolver
    /// </summary>
    public class BoxSetResolver : FolderResolver<BoxSet>
    {
        /// <summary>
        /// Resolves the specified args.
        /// </summary>
        /// <param name="args">The args.</param>
        /// <returns>BoxSet.</returns>
        protected override BoxSet Resolve(ItemResolveArgs args)
        {
            // It's a boxset if all of the following conditions are met:
            // Is a Directory
            // Contains [boxset] in the path
            if (args.IsDirectory)
            {
                var filename = Path.GetFileName(args.Path);

                if (string.IsNullOrEmpty(filename))
                {
                    return null;
                }

                // This is a bit of a one-off but it's here to combat MCM's over-aggressive placement of collection.xml files where they don't belong, including in series folders.
                if (args.ContainsMetaFileByName("series.xml"))
                {
                    return null;
                }
                
                if (filename.IndexOf("[boxset]", StringComparison.OrdinalIgnoreCase) != -1 || args.ContainsFileSystemEntryByName("collection.xml"))
                {
                    return new BoxSet { Path = args.Path };
                }
            }

            return null;
        }

        /// <summary>
        /// Sets the initial item values.
        /// </summary>
        /// <param name="item">The item.</param>
        /// <param name="args">The args.</param>
        protected override void SetInitialItemValues(BoxSet item, ItemResolveArgs args)
        {
            base.SetInitialItemValues(item, args);

            SetProviderIdFromPath(item);
        }

        /// <summary>
        /// Sets the provider id from path.
        /// </summary>
        /// <param name="item">The item.</param>
        private void SetProviderIdFromPath(BaseItem item)
        {
            //we need to only look at the name of this actual item (not parents)
            var justName = Path.GetFileName(item.Path);

            var id = justName.GetAttributeValue("tmdbid");

            if (!string.IsNullOrEmpty(id))
            {
                item.SetProviderId(MetadataProviders.Tmdb, id);
            }
        }
    }
}