From 24b8029d2e4a8aa5a42b2fbb70283a02cef3e4e8 Mon Sep 17 00:00:00 2001
From: Taloth Saldono <Taloth@users.noreply.github.com>
Date: Fri, 7 May 2021 22:09:23 +0200
Subject: [PATCH] Fixed: Release Year in renaming format for certain OS
 language cultures

Based-On: https://github.com/Radarr/Radarr/commit/a0d2af54e854a77e7e61d1c79a433c488cf9ac41
(cherry picked from commit 87897d56ea62544a36986eb09d420649668d7400)
---
 .../FileNameBuilderFixture.cs                 | 26 +++++++++++++++++++
 .../Organizer/FileNameBuilder.cs              |  2 +-
 2 files changed, 27 insertions(+), 1 deletion(-)

diff --git a/src/NzbDrone.Core.Test/OrganizerTests/FileNameBuilderTests/FileNameBuilderFixture.cs b/src/NzbDrone.Core.Test/OrganizerTests/FileNameBuilderTests/FileNameBuilderFixture.cs
index a042757e9..550288f69 100644
--- a/src/NzbDrone.Core.Test/OrganizerTests/FileNameBuilderTests/FileNameBuilderFixture.cs
+++ b/src/NzbDrone.Core.Test/OrganizerTests/FileNameBuilderTests/FileNameBuilderFixture.cs
@@ -1,7 +1,9 @@
 using System;
 using System.Collections.Generic;
+using System.Globalization;
 using System.IO;
 using System.Linq;
+using System.Threading;
 using FizzWare.NBuilder;
 using FluentAssertions;
 using NUnit.Framework;
@@ -793,6 +795,30 @@ namespace NzbDrone.Core.Test.OrganizerTests.FileNameBuilderTests
                    .Should().Be(releaseGroup);
         }
 
+        [TestCase("en-US")]
+        [TestCase("fr-FR")]
+        [TestCase("az")]
+        [TestCase("tr-TR")]
+        public void should_replace_all_tokens_for_different_cultures(string culture)
+        {
+            var oldCulture = Thread.CurrentThread.CurrentCulture;
+            try
+            {
+                Thread.CurrentThread.CurrentCulture = new CultureInfo(culture);
+
+                _album.ReleaseDate = new DateTime(2021, 1, 15);
+
+                _namingConfig.StandardTrackFormat = "{Release Year}";
+
+                Subject.BuildTrackFileName(new List<Track> { _track1 }, _artist, _album, _trackFile)
+                    .Should().Be("2021");
+            }
+            finally
+            {
+                Thread.CurrentThread.CurrentCulture = oldCulture;
+            }
+        }
+
         [Test]
         public void should_replace_artist_name_for_Various_Artists_album()
         {
diff --git a/src/NzbDrone.Core/Organizer/FileNameBuilder.cs b/src/NzbDrone.Core/Organizer/FileNameBuilder.cs
index 36ec1227e..b9f3a318b 100644
--- a/src/NzbDrone.Core/Organizer/FileNameBuilder.cs
+++ b/src/NzbDrone.Core/Organizer/FileNameBuilder.cs
@@ -35,7 +35,7 @@ namespace NzbDrone.Core.Organizer
         private readonly Logger _logger;
 
         private static readonly Regex TitleRegex = new Regex(@"(?<escaped>\{\{|\}\})|\{(?<prefix>[- ._\[(]*)(?<token>(?:[a-z0-9]+)(?:(?<separator>[- ._]+)(?:[a-z0-9]+))?)(?::(?<customFormat>[a-z0-9]+))?(?<suffix>[- ._)\]]*)\}",
-                                                             RegexOptions.Compiled | RegexOptions.IgnoreCase);
+                                                             RegexOptions.Compiled | RegexOptions.IgnoreCase | RegexOptions.CultureInvariant);
 
         public static readonly Regex TrackRegex = new Regex(@"(?<track>\{track(?:\:0+)?})",
                                                                RegexOptions.Compiled | RegexOptions.IgnoreCase);