unwrapped similar items api into separate endpoints for each type

1 files changed, 5 insertions, 204 deletions

diff --git a/MediaBrowser.Api/LibraryService.cs b/MediaBrowser.Api/LibraryService.cs
index e3b93c340..681bbd851 100644
--- a/MediaBrowser.Api/LibraryService.cs
+++ b/MediaBrowser.Api/LibraryService.cs
@@ -127,32 +127,6 @@ namespace MediaBrowser.Api
         public Guid? UserId { get; set; }
     }
 
-    [Route("/Items/{Id}/Similar", "GET")]
-    [Api(Description = "Gets items similar to a given input item.")]
-    public class GetSimilarItems : IReturn<ItemsResult>
-    {
-        /// <summary>
-        /// Gets or sets the user id.
-        /// </summary>
-        /// <value>The user id.</value>
-        [ApiMember(Name = "UserId", Description = "Optional. Filter by user id, and attach user data", IsRequired = false, DataType = "string", ParameterType = "query", Verb = "GET")]
-        public Guid? UserId { get; set; }
-
-        /// <summary>
-        /// Gets or sets the id.
-        /// </summary>
-        /// <value>The id.</value>
-        [ApiMember(Name = "Id", Description = "Item Id", IsRequired = true, DataType = "string", ParameterType = "path", Verb = "GET")]
-        public string Id { get; set; }
-
-        /// <summary>
-        /// The maximum number of items to return
-        /// </summary>
-        /// <value>The limit.</value>
-        [ApiMember(Name = "Limit", Description = "Optional. The maximum number of records to return", IsRequired = false, DataType = "int", ParameterType = "query", Verb = "GET")]
-        public int? Limit { get; set; }
-    }
-
     /// <summary>
     /// Class LibraryService
     /// </summary>
@@ -420,6 +394,11 @@ namespace MediaBrowser.Api
             Task.WaitAll(task);
         }
 
+        /// <summary>
+        /// Refreshes the item.
+        /// </summary>
+        /// <param name="request">The request.</param>
+        /// <returns>Task.</returns>
         private async Task RefreshItem(RefreshItem request)
         {
             var item = DtoBuilder.GetItemByClientId(request.Id, _userManager, _libraryManager);
@@ -441,183 +420,5 @@ namespace MediaBrowser.Api
                 Logger.ErrorException("Error refreshing library", ex);
             }
         }
-
-        /// <summary>
-        /// Gets the specified request.
-        /// </summary>
-        /// <param name="request">The request.</param>
-        /// <returns>System.Object.</returns>
-        public object Get(GetSimilarItems request)
-        {
-            var user = request.UserId.HasValue ? _userManager.GetUserById(request.UserId.Value) : null;
-
-            var item = string.IsNullOrEmpty(request.Id) ?
-                (request.UserId.HasValue ? user.RootFolder :
-                (Folder)_libraryManager.RootFolder) : DtoBuilder.GetItemByClientId(request.Id, _userManager, _libraryManager, request.UserId);
-
-            // Get everything
-            var fields = Enum.GetNames(typeof(ItemFields)).Select(i => (ItemFields)Enum.Parse(typeof(ItemFields), i, true)).ToList();
-
-            var dtoBuilder = new DtoBuilder(Logger, _libraryManager, _userDataRepository);
-
-            var inputItems = user == null
-                                 ? _libraryManager.RootFolder.RecursiveChildren
-                                 : user.RootFolder.GetRecursiveChildren(user);
-
-            var items = GetSimilaritems(item, inputItems).ToArray();
-
-            var result = new ItemsResult
-            {
-                Items = items.Take(request.Limit ?? items.Length).Select(i => dtoBuilder.GetBaseItemDto(i, fields, user)).Select(t => t.Result).ToArray(),
-
-                TotalRecordCount = items.Length
-            };
-
-            return ToOptimizedResult(result);
-        }
-
-        /// <summary>
-        /// Gets the similiar items.
-        /// </summary>
-        /// <param name="item">The item.</param>
-        /// <param name="inputItems">The input items.</param>
-        /// <returns>IEnumerable{BaseItem}.</returns>
-        private IEnumerable<BaseItem> GetSimilaritems(BaseItem item, IEnumerable<BaseItem> inputItems)
-        {
-            if (item is Movie || item is Trailer)
-            {
-                inputItems = inputItems.Where(i => i is Movie || i is Trailer);
-            }
-            else if (item is Series)
-            {
-                inputItems = inputItems.Where(i => i is Series);
-            }
-            else if (item is BaseGame)
-            {
-                inputItems = inputItems.Where(i => i is BaseGame);
-            }
-            else if (item is MusicAlbum)
-            {
-                inputItems = inputItems.Where(i => i is MusicAlbum);
-            }
-            else if (item is Audio)
-            {
-                inputItems = inputItems.Where(i => i is Audio);
-            }
-
-            // Avoid implicitly captured closure
-            var currentItem = item;
-
-            return inputItems.Where(i => i.Id != currentItem.Id)
-                .Select(i => new Tuple<BaseItem, int>(i, GetSimiliarityScore(item, i)))
-                .Where(i => i.Item2 > 0)
-                .OrderByDescending(i => i.Item2)
-                .ThenByDescending(i => i.Item1.CriticRating ?? 0)
-                .Select(i => i.Item1);
-        }
-
-        /// <summary>
-        /// Gets the similiarity score.
-        /// </summary>
-        /// <param name="item1">The item1.</param>
-        /// <param name="item2">The item2.</param>
-        /// <returns>System.Int32.</returns>
-        private int GetSimiliarityScore(BaseItem item1, BaseItem item2)
-        {
-            var points = 0;
-
-            if (!string.IsNullOrEmpty(item1.OfficialRating) && string.Equals(item1.OfficialRating, item2.OfficialRating, StringComparison.OrdinalIgnoreCase))
-            {
-                points += 1;
-            }
-
-            // Find common genres
-            points += item1.Genres.Where(i => item2.Genres.Contains(i, StringComparer.OrdinalIgnoreCase)).Sum(i => 5);
-
-            // Find common tags
-            points += item1.Tags.Where(i => item2.Tags.Contains(i, StringComparer.OrdinalIgnoreCase)).Sum(i => 5);
-
-            // Find common studios
-            points += item1.Studios.Where(i => item2.Studios.Contains(i, StringComparer.OrdinalIgnoreCase)).Sum(i => 3);
-
-            var item2PeopleNames = item2.People.Select(i => i.Name).ToList();
-
-            points += item1.People.Where(i => item2PeopleNames.Contains(i.Name, StringComparer.OrdinalIgnoreCase)).Sum(i =>
-            {
-                if (string.Equals(i.Name, PersonType.Director, StringComparison.OrdinalIgnoreCase))
-                {
-                    return 5;
-                }
-                if (string.Equals(i.Name, PersonType.Actor, StringComparison.OrdinalIgnoreCase))
-                {
-                    return 3;
-                }
-                if (string.Equals(i.Name, PersonType.Composer, StringComparison.OrdinalIgnoreCase))
-                {
-                    return 3;
-                }
-                if (string.Equals(i.Name, PersonType.GuestStar, StringComparison.OrdinalIgnoreCase))
-                {
-                    return 3;
-                }
-                if (string.Equals(i.Name, PersonType.Writer, StringComparison.OrdinalIgnoreCase))
-                {
-                    return 2;
-                }
-
-                return 1;
-            });
-
-            if (item1.ProductionYear.HasValue && item2.ProductionYear.HasValue)
-            {
-                var diff = Math.Abs(item1.ProductionYear.Value - item2.ProductionYear.Value);
-
-                // Add if they came out within the same decade
-                if (diff < 10)
-                {
-                    points += 3;
-                }
-
-                // And more if within five years
-                if (diff < 5)
-                {
-                    points += 3;
-                }
-            }
-
-            var album = item1 as MusicAlbum;
-
-            if (album != null)
-            {
-                points += GetAlbumSimilarityScore(album, (MusicAlbum)item2);
-            }
-
-            return points;
-        }
-
-        /// <summary>
-        /// Gets the album similarity score.
-        /// </summary>
-        /// <param name="item1">The item1.</param>
-        /// <param name="item2">The item2.</param>
-        /// <returns>System.Int32.</returns>
-        private int GetAlbumSimilarityScore(MusicAlbum item1, MusicAlbum item2)
-        {
-            var artists1 = item1.RecursiveChildren
-                .OfType<Audio>()
-                .SelectMany(i => new[] { i.AlbumArtist, i.Artist })
-                .Where(i => !string.IsNullOrEmpty(i))
-                .Distinct(StringComparer.OrdinalIgnoreCase)
-                .ToList();
-
-            var artists2 = item2.RecursiveChildren
-                .OfType<Audio>()
-                .SelectMany(i => new[] { i.AlbumArtist, i.Artist })
-                .Where(i => !string.IsNullOrEmpty(i))
-                .Distinct(StringComparer.OrdinalIgnoreCase)
-                .ToList();
-
-            return artists1.Where(i => artists2.Contains(i, StringComparer.OrdinalIgnoreCase)).Sum(i => 5);
-        }
     }
 }