New: Genre parameter for Movie search

src/NzbDrone.Core/IndexerSearch/Definitions/MovieSearchCriteria.cs

@@ -10,6 +10,7 @@ namespace NzbDrone.Core.IndexerSearch.Definitions
         public int? TmdbId { get; set; }
         public int? TraktId { get; set; }
         public int? Year { get; set; }
+        public string Genre { get; set; }
 
         public override bool RssSearch
         {
@@ -64,6 +65,11 @@ namespace NzbDrone.Core.IndexerSearch.Definitions
                     builder = builder.Append($" TraktId:[{TraktId}]");
                 }
 
+                if (Genre.IsNotNullOrWhiteSpace())
+                {
+                    builder = builder.Append($" Genre:[{Genre}]");
+                }
+
                 return builder.ToString().Trim();
             }
         }

src/NzbDrone.Core/IndexerSearch/ReleaseSearchService.cs

@@ -60,6 +60,7 @@ namespace NzbDrone.Core.IndexerSearch
             searchSpec.TmdbId = request.tmdbid;
             searchSpec.TraktId = request.traktid;
             searchSpec.Year = request.year;
+            searchSpec.Genre = request.genre;
 
             return new NewznabResults { Releases = await Dispatch(indexer => indexer.Fetch(searchSpec), searchSpec) };
         }

src/NzbDrone.Core/Indexers/IndexerCapabilities.cs

@@ -26,6 +26,7 @@ namespace NzbDrone.Core.Indexers
         ImdbTitle,
         ImdbYear,
         TraktId,
+        Genre
     }
 
     public enum MusicSearchParam
@@ -75,6 +76,7 @@ namespace NzbDrone.Core.Indexers
         public bool MovieSearchImdbAvailable => MovieSearchParams.Contains(MovieSearchParam.ImdbId);
         public bool MovieSearchTmdbAvailable => MovieSearchParams.Contains(MovieSearchParam.TmdbId);
         public bool MovieSearchTraktAvailable => MovieSearchParams.Contains(MovieSearchParam.TraktId);
+        public bool MovieSearchGenreAvailable => MovieSearchParams.Contains(MovieSearchParam.Genre);
 
         public List<MusicSearchParam> MusicSearchParams;
         public bool MusicSearchAvailable => MusicSearchParams.Count > 0;
@@ -321,6 +323,16 @@ namespace NzbDrone.Core.Indexers
                 parameters.Add("tmdbid");
             }
 
+            if (MovieSearchTraktAvailable)
+            {
+                parameters.Add("traktid");
+            }
+
+            if (MovieSearchGenreAvailable)
+            {
+                parameters.Add("genre");
+            }
+
             return string.Join(",", parameters);
         }