New: Accept ':##' on renaming tokens to allow specifying a maximum length for movie titles and release group

(cherry picked from commit 19db75b36beaa5e549d903b136dbda300f1f8562)

Closes #9713

src/NzbDrone.Common.Test/ExtensionTests/StringExtensionTests/ReverseFixture.cs

@@ -0,0 +1,17 @@
+using FluentAssertions;
+using NUnit.Framework;
+using NzbDrone.Common.Extensions;
+
+namespace NzbDrone.Common.Test.ExtensionTests.StringExtensionTests
+{
+    [TestFixture]
+    public class ReverseFixture
+    {
+        [TestCase("input", "tupni")]
+        [TestCase("racecar", "racecar")]
+        public void should_reverse_string(string input, string expected)
+        {
+            input.Reverse().Should().Be(expected);
+        }
+    }
+}

src/NzbDrone.Common/Extensions/StringExtensions.cs

@@ -219,5 +219,14 @@ namespace NzbDrone.Common.Extensions
         {
             return input.Contains(':') ? $"[{input}]" : input;
         }
+
+        public static string Reverse(this string text)
+        {
+            var array = text.ToCharArray();
+
+            Array.Reverse(array);
+
+            return new string(array);
+        }
     }
 }

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

@@ -0,0 +1,56 @@
+using System.Collections.Generic;
+using System.Linq;
+using FizzWare.NBuilder;
+using FluentAssertions;
+using NUnit.Framework;
+using NzbDrone.Core.CustomFormats;
+using NzbDrone.Core.Movies;
+using NzbDrone.Core.Organizer;
+using NzbDrone.Core.Qualities;
+using NzbDrone.Core.Test.Framework;
+
+namespace NzbDrone.Core.Test.OrganizerTests.FileNameBuilderTests
+{
+    [TestFixture]
+
+    public class TruncatedMovieTitleFixture : CoreTest<FileNameBuilder>
+    {
+        private Movie _movie;
+        private NamingConfig _namingConfig;
+
+        [SetUp]
+        public void Setup()
+        {
+            _movie = Builder<Movie>
+                    .CreateNew()
+                    .With(s => s.Title = "Movie Title")
+                    .Build();
+
+            _namingConfig = NamingConfig.Default;
+            _namingConfig.RenameMovies = 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));
+
+            Mocker.GetMock<ICustomFormatService>()
+                  .Setup(v => v.All())
+                  .Returns(new List<CustomFormat>());
+        }
+
+        [TestCase("{Movie Title:16}", "The Fantastic...")]
+        [TestCase("{Movie TitleThe:17}", "Fantastic Life...")]
+        [TestCase("{Movie CleanTitle:-13}", "...Mr. Sisko")]
+        public void should_truncate_series_title(string format, string expected)
+        {
+            _movie.Title = "The Fantastic Life of Mr. Sisko";
+            _namingConfig.MovieFolderFormat = format;
+
+            var result = Subject.GetMovieFolder(_movie, _namingConfig);
+            result.Should().Be(expected);
+        }
+    }
+}

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

@@ -0,0 +1,82 @@
+using System.Collections.Generic;
+using System.Linq;
+using FizzWare.NBuilder;
+using FluentAssertions;
+using NUnit.Framework;
+using NzbDrone.Core.CustomFormats;
+using NzbDrone.Core.MediaFiles;
+using NzbDrone.Core.Movies;
+using NzbDrone.Core.Organizer;
+using NzbDrone.Core.Qualities;
+using NzbDrone.Core.Test.Framework;
+
+namespace NzbDrone.Core.Test.OrganizerTests.FileNameBuilderTests
+{
+    [TestFixture]
+
+    public class TruncatedReleaseGroupFixture : CoreTest<FileNameBuilder>
+    {
+        private Movie _movie;
+        private MovieFile _movieFile;
+        private NamingConfig _namingConfig;
+
+        [SetUp]
+        public void Setup()
+        {
+            _movie = Builder<Movie>
+                    .CreateNew()
+                    .With(s => s.Title = "Movie Title")
+                    .With(s => s.Year = 2024)
+                    .Build();
+
+            _namingConfig = NamingConfig.Default;
+            _namingConfig.RenameMovies = true;
+
+            Mocker.GetMock<INamingConfigService>()
+                  .Setup(c => c.GetConfig()).Returns(_namingConfig);
+
+            _movieFile = new MovieFile { Quality = new QualityModel(Quality.HDTV720p), ReleaseGroup = "RadarrTest" };
+
+            Mocker.GetMock<IQualityDefinitionService>()
+                .Setup(v => v.Get(Moq.It.IsAny<Quality>()))
+                .Returns<Quality>(v => Quality.DefaultQualityDefinitions.First(c => c.Quality == v));
+
+            Mocker.GetMock<ICustomFormatService>()
+                  .Setup(v => v.All())
+                  .Returns(new List<CustomFormat>());
+        }
+
+        private void GivenProper()
+        {
+            _movieFile.Quality.Revision.Version = 2;
+        }
+
+        [Test]
+        public void should_truncate_from_beginning()
+        {
+            _movie.Title = "The Fantastic Life of Mr. Sisko";
+
+            _movieFile.Quality.Quality = Quality.Bluray1080p;
+            _movieFile.ReleaseGroup = "IWishIWasALittleBitTallerIWishIWasABallerIWishIHadAGirlWhoLookedGoodIWouldCallHerIWishIHadARabbitInAHatWithABatAndASixFourImpala";
+            _namingConfig.StandardMovieFormat = "{Movie Title} ({Release Year}) {Quality Full}-{ReleaseGroup:12}";
+
+            var result = Subject.BuildFileName(_movie, _movieFile);
+            result.Length.Should().BeLessOrEqualTo(255);
+            result.Should().Be("The Fantastic Life of Mr. Sisko (2024) Bluray-1080p-IWishIWas...");
+        }
+
+        [Test]
+        public void should_truncate_from_from_end()
+        {
+            _movie.Title = "The Fantastic Life of Mr. Sisko";
+
+            _movieFile.Quality.Quality = Quality.Bluray1080p;
+            _movieFile.ReleaseGroup = "IWishIWasALittleBitTallerIWishIWasABallerIWishIHadAGirlWhoLookedGoodIWouldCallHerIWishIHadARabbitInAHatWithABatAndASixFourImpala";
+            _namingConfig.StandardMovieFormat = "{Movie Title} ({Release Year}) {Quality Full}-{ReleaseGroup:-17}";
+
+            var result = Subject.BuildFileName(_movie, _movieFile);
+            result.Length.Should().BeLessOrEqualTo(255);
+            result.Should().Be("The Fantastic Life of Mr. Sisko (2024) Bluray-1080p-...ASixFourImpala");
+        }
+    }
+}

src/NzbDrone.Core/Organizer/FileNameBuilder.cs

@@ -134,6 +134,7 @@ namespace NzbDrone.Core.Organizer
 
                 component = FileNameCleanupRegex.Replace(component, match => match.Captures[0].Value[0].ToString());
                 component = TrimSeparatorsRegex.Replace(component, string.Empty);
+                component = component.Replace("{ellipsis}", "...");
                 component = ReplaceReservedDeviceNames(component);
 
                 if (component.IsNotNullOrWhiteSpace())
@@ -197,6 +198,7 @@ namespace NzbDrone.Core.Organizer
 
                 var component = ReplaceTokens(splitPattern, tokenHandlers, namingConfig);
                 component = CleanFolderName(component);
+                component = component.Replace("{ellipsis}", "...");
                 component = ReplaceReservedDeviceNames(component);
 
                 if (component.IsNotNullOrWhiteSpace())
@@ -264,15 +266,15 @@ namespace NzbDrone.Core.Organizer
 
         private void AddMovieTokens(Dictionary<string, Func<TokenMatch, string>> tokenHandlers, Movie movie)
         {
-            tokenHandlers["{Movie Title}"] = m => GetLanguageTitle(movie, m.CustomFormat);
-            tokenHandlers["{Movie CleanTitle}"] = m => CleanTitle(GetLanguageTitle(movie, m.CustomFormat));
-            tokenHandlers["{Movie TitleThe}"] = m => TitleThe(movie.Title);
+            tokenHandlers["{Movie Title}"] = m => Truncate(GetLanguageTitle(movie, m.CustomFormat), m.CustomFormat);
+            tokenHandlers["{Movie CleanTitle}"] = m => Truncate(CleanTitle(GetLanguageTitle(movie, m.CustomFormat)), m.CustomFormat);
+            tokenHandlers["{Movie TitleThe}"] = m => Truncate(TitleThe(movie.Title), m.CustomFormat);
             tokenHandlers["{Movie TitleFirstCharacter}"] = m => TitleFirstCharacter(TitleThe(GetLanguageTitle(movie, m.CustomFormat)));
-            tokenHandlers["{Movie OriginalTitle}"] = m => movie.MovieMetadata.Value.OriginalTitle ?? string.Empty;
-            tokenHandlers["{Movie CleanOriginalTitle}"] = m => CleanTitle(movie.MovieMetadata.Value.OriginalTitle ?? string.Empty);
+            tokenHandlers["{Movie OriginalTitle}"] = m => Truncate(movie.MovieMetadata.Value.OriginalTitle, m.CustomFormat) ?? string.Empty;
+            tokenHandlers["{Movie CleanOriginalTitle}"] = m => Truncate(CleanTitle(movie.MovieMetadata.Value.OriginalTitle ?? string.Empty), m.CustomFormat);
 
             tokenHandlers["{Movie Certification}"] = m => movie.MovieMetadata.Value.Certification ?? string.Empty;
-            tokenHandlers["{Movie Collection}"] = m => movie.MovieMetadata.Value.CollectionTitle ?? string.Empty;
+            tokenHandlers["{Movie Collection}"] = m => Truncate(movie.MovieMetadata.Value.CollectionTitle, m.CustomFormat) ?? string.Empty;
         }
 
         private string GetLanguageTitle(Movie movie, string isoCodes)
@@ -306,7 +308,7 @@ namespace NzbDrone.Core.Organizer
         {
             if (movieFile.Edition.IsNotNullOrWhiteSpace())
             {
-                tokenHandlers["{Edition Tags}"] = m => CultureInfo.CurrentCulture.TextInfo.ToTitleCase(movieFile.Edition.ToLower());
+                tokenHandlers["{Edition Tags}"] = m => Truncate(CultureInfo.CurrentCulture.TextInfo.ToTitleCase(movieFile.Edition.ToLower()), m.CustomFormat);
             }
         }
 
@@ -331,8 +333,7 @@ namespace NzbDrone.Core.Organizer
         {
             tokenHandlers["{Original Title}"] = m => GetOriginalTitle(movieFile, multipleTokens);
             tokenHandlers["{Original Filename}"] = m => GetOriginalFileName(movieFile, multipleTokens);
-
-            tokenHandlers["{Release Group}"] = m => movieFile.ReleaseGroup ?? m.DefaultValue("Radarr");
+            tokenHandlers["{Release Group}"] = m => Truncate(movieFile.ReleaseGroup, m.CustomFormat) ?? m.DefaultValue("Radarr");
         }
 
         private void AddQualityTokens(Dictionary<string, Func<TokenMatch, string>> tokenHandlers, Movie movie, MovieFile movieFile)
@@ -623,6 +624,30 @@ namespace NzbDrone.Core.Organizer
             // Replace reserved windows device names with an alternative
             return ReservedDeviceNamesRegex.Replace(input, match => match.Value.Replace(".", "_"));
         }
+
+        private string Truncate(string input, string formatter)
+        {
+            var maxLength = GetMaxLengthFromFormatter(formatter);
+
+            if (maxLength == 0 || input.Length <= Math.Abs(maxLength))
+            {
+                return input;
+            }
+
+            if (maxLength < 0)
+            {
+                return $"{{ellipsis}}{input.Reverse().Truncate(Math.Abs(maxLength) - 3).TrimEnd(' ', '.').Reverse()}";
+            }
+
+            return $"{input.Truncate(maxLength - 3).TrimEnd(' ', '.')}{{ellipsis}}";
+        }
+
+        private int GetMaxLengthFromFormatter(string formatter)
+        {
+            int.TryParse(formatter, out var maxCustomLength);
+
+            return maxCustomLength;
+        }
     }
 
     internal sealed class TokenMatch