Improve usage of Original Title renaming token

Fixed: Don't recursively add the current file name to new file name when '{Original Title}' is used in addition to other naming tokens

src/NzbDrone.Core.Test/OrganizerTests/FileNameBuilderTests/OriginalTitleFixture.cs

@@ -0,0 +1,91 @@
+using System.Collections.Generic;
+using System.Linq;
+using FizzWare.NBuilder;
+using FluentAssertions;
+using NUnit.Framework;
+using NzbDrone.Core.MediaFiles;
+using NzbDrone.Core.Organizer;
+using NzbDrone.Core.Qualities;
+using NzbDrone.Core.Test.Framework;
+using NzbDrone.Core.Tv;
+
+namespace NzbDrone.Core.Test.OrganizerTests.FileNameBuilderTests
+{
+    [TestFixture]
+    public class OriginalTitleFixture : CoreTest<FileNameBuilder>
+    {
+        private Series _series;
+        private Episode _episode;
+        private EpisodeFile _episodeFile;
+        private NamingConfig _namingConfig;
+
+        [SetUp]
+        public void Setup()
+        {
+            _series = Builder<Series>
+                    .CreateNew()
+                    .With(s => s.Title = "My Series")
+                    .Build();
+
+            _episode = Builder<Episode>.CreateNew()
+                            .With(e => e.Title = "City Sushi")
+                            .With(e => e.SeasonNumber = 15)
+                            .With(e => e.EpisodeNumber = 6)
+                            .With(e => e.AbsoluteEpisodeNumber = 100)
+                            .Build();
+
+            _episodeFile = new EpisodeFile { Quality = new QualityModel(Quality.HDTV720p), ReleaseGroup = "SonarrTest" };
+
+            _namingConfig = NamingConfig.Default;
+            _namingConfig.RenameEpisodes = true;
+
+            Mocker.GetMock<INamingConfigService>()
+                  .Setup(c => c.GetConfig()).Returns(_namingConfig);
+
+            Mocker.GetMock<IQualityDefinitionService>()
+                .Setup(v => v.Get(Moq.It.IsAny<Quality>()))
+                .Returns<Quality>(v => Quality.DefaultQualityDefinitions.First(c => c.Quality == v));
+        }
+
+        [Test]
+        public void should_not_recursively_include_current_filename()
+        {
+            _episodeFile.RelativePath = "My Series - S15E06 - City Sushi";
+            _namingConfig.StandardEpisodeFormat = "{Series Title} - S{season:00}E{episode:00} - {Episode Title} {[Original Title]}";
+
+            Subject.BuildFileName(new List<Episode> { _episode }, _series, _episodeFile)
+                   .Should().Be("My Series - S15E06 - City Sushi");
+        }
+
+        [Test]
+        public void should_include_original_title_if_not_current_file_name()
+        {
+            _episodeFile.SceneName = "my.series.s15e06";
+            _episodeFile.RelativePath = "My Series - S15E06 - City Sushi";
+            _namingConfig.StandardEpisodeFormat = "{Series Title} - S{season:00}E{episode:00} - {Episode Title} {[Original Title]}";
+
+            Subject.BuildFileName(new List<Episode> { _episode }, _series, _episodeFile)
+                   .Should().Be("My Series - S15E06 - City Sushi [my.series.s15e06]");
+        }
+
+        [Test]
+        public void should_include_current_filename_if_not_renaming_files()
+        {
+            _episodeFile.SceneName = "my.series.s15e06";
+            _namingConfig.RenameEpisodes = false;
+
+            Subject.BuildFileName(new List<Episode> { _episode }, _series, _episodeFile)
+                   .Should().Be("my.series.s15e06");
+        }
+        
+        [Test]
+        public void should_include_current_filename_if_not_including_multiple_naming_tokens()
+        {
+            _episodeFile.RelativePath = "My Series - S15E06 - City Sushi";
+            _namingConfig.StandardEpisodeFormat = "{Original Title}";
+
+            Subject.BuildFileName(new List<Episode> { _episode }, _series, _episodeFile)
+                   .Should().Be("My Series - S15E06 - City Sushi");
+        }
+    }
+}

src/NzbDrone.Core/Organizer/FileNameBuilder.cs

@@ -109,7 +109,7 @@ namespace NzbDrone.Core.Organizer
 
             if (!namingConfig.RenameEpisodes)
             {
-                return GetOriginalTitle(episodeFile) + extension;
+                return GetOriginalTitle(episodeFile, false) + extension;
             }
 
             if (namingConfig.StandardEpisodeFormat.IsNullOrWhiteSpace() && series.SeriesType == SeriesTypes.Standard)
@@ -148,6 +148,8 @@ namespace NzbDrone.Core.Organizer
             {
                 var splitPattern = splitPatterns[i];
                 var tokenHandlers = new Dictionary<string, Func<TokenMatch, string>>(FileNameBuilderTokenEqualityComparer.Instance);
+                var multipleTokens = TitleRegex.Matches(splitPattern).Count > 1;
+
                 splitPattern = AddSeasonEpisodeNumberingTokens(splitPattern, tokenHandlers, episodes, namingConfig);
                 splitPattern = AddAbsoluteNumberingTokens(splitPattern, tokenHandlers, series, episodes, namingConfig);
 
@@ -157,7 +159,7 @@ namespace NzbDrone.Core.Organizer
                 AddIdTokens(tokenHandlers, series);
                 AddEpisodeTokens(tokenHandlers, episodes);
                 AddEpisodeTitlePlaceholderTokens(tokenHandlers);
-                AddEpisodeFileTokens(tokenHandlers, episodeFile);
+                AddEpisodeFileTokens(tokenHandlers, episodeFile, multipleTokens);
                 AddQualityTokens(tokenHandlers, series, episodeFile);
                 AddMediaInfoTokens(tokenHandlers, episodeFile);
                 AddPreferredWords(tokenHandlers, series, episodeFile, preferredWords);
@@ -583,10 +585,10 @@ namespace NzbDrone.Core.Organizer
             tokenHandlers["{Episode CleanTitle}"] = m => GetEpisodeTitle(GetEpisodeTitles(episodes).Select(CleanTitle).ToList(), "and", maxLength);
         }
 
-        private void AddEpisodeFileTokens(Dictionary<string, Func<TokenMatch, string>> tokenHandlers, EpisodeFile episodeFile)
+        private void AddEpisodeFileTokens(Dictionary<string, Func<TokenMatch, string>> tokenHandlers, EpisodeFile episodeFile, bool multipleTokens)
         {
-            tokenHandlers["{Original Title}"] = m => GetOriginalTitle(episodeFile);
+            tokenHandlers["{Original Title}"] = m => GetOriginalTitle(episodeFile, multipleTokens);
-            tokenHandlers["{Original Filename}"] = m => GetOriginalFileName(episodeFile);
+            tokenHandlers["{Original Filename}"] = m => GetOriginalFileName(episodeFile, multipleTokens);
             tokenHandlers["{Release Group}"] = m => episodeFile.ReleaseGroup ?? m.DefaultValue("Sonarr");
         }
 
@@ -1030,18 +1032,23 @@ namespace NzbDrone.Core.Organizer
             return string.Empty;
         }
 
-        private string GetOriginalTitle(EpisodeFile episodeFile)
+        private string GetOriginalTitle(EpisodeFile episodeFile, bool multipleTokens)
         {
             if (episodeFile.SceneName.IsNullOrWhiteSpace())
             {
-                return GetOriginalFileName(episodeFile);
+                return GetOriginalFileName(episodeFile, multipleTokens);
             }
 
             return episodeFile.SceneName;
         }
 
-        private string GetOriginalFileName(EpisodeFile episodeFile)
+        private string GetOriginalFileName(EpisodeFile episodeFile, bool multipleTokens)
         {
+            if (multipleTokens)
+            {
+                return string.Empty;
+            }
+
             if (episodeFile.RelativePath.IsNullOrWhiteSpace())
             {
                 return Path.GetFileNameWithoutExtension(episodeFile.Path);