From 925e933359073ad8dca5b081fb0a76ffec92fa17 Mon Sep 17 00:00:00 2001
From: John Andrews <john@reven.co.nz>
Date: Thu, 12 Sep 2024 07:54:07 +1200
Subject: [PATCH] FF-1771: Video has stream original language is now supported

---
 VideoNodes/LogicalNodes/VideoHasStream.cs | 11 ++++++++++-
 VideoNodes/Tests/VideoHasStreamTests.cs   | 23 +++++++++++++++++++++++
 2 files changed, 33 insertions(+), 1 deletion(-)

diff --git a/VideoNodes/LogicalNodes/VideoHasStream.cs b/VideoNodes/LogicalNodes/VideoHasStream.cs
index 20f6133b..97fce5d9 100644
--- a/VideoNodes/LogicalNodes/VideoHasStream.cs
+++ b/VideoNodes/LogicalNodes/VideoHasStream.cs
@@ -337,13 +337,22 @@ public class VideoHasStream : VideoNode
     /// <returns>the match result</returns>
     private bool LanguageMatches(NodeParameters args, string lang, string streamLanguage)
     {
+        lang = args.ReplaceVariables(lang.Replace("{orig}", "{OriginalLanguage}"), stripMissing: false);
+        if (args.Variables.TryGetValue("OriginalLanguage", out var oOrigLanguage) && oOrigLanguage is string origLanguage &&
+            string.IsNullOrWhiteSpace(origLanguage) == false)
+        {
+            lang = lang.Replace("OriginalLanguage", origLanguage, StringComparison.InvariantCultureIgnoreCase);
+            lang = lang.Replace("original", origLanguage);
+            lang = lang.Replace("orig", origLanguage);
+        }
+        
         string iso1 = LanguageHelper.GetIso1Code(streamLanguage);
         string iso2 = LanguageHelper.GetIso2Code(streamLanguage);
         string english = LanguageHelper.GetEnglishFor(streamLanguage);
         var iso1Matches = ValueMatch(lang, iso1) == MatchResult.Matched;
         var iso2Matches = ValueMatch(lang, iso2) == MatchResult.Matched;
         var engMatches = ValueMatch(lang, english) == MatchResult.Matched;
-
+        
         bool anyMatches = iso1Matches || iso2Matches || engMatches;
         if(anyMatches == false)
         {
diff --git a/VideoNodes/Tests/VideoHasStreamTests.cs b/VideoNodes/Tests/VideoHasStreamTests.cs
index cb5feb16..3d682c89 100644
--- a/VideoNodes/Tests/VideoHasStreamTests.cs
+++ b/VideoNodes/Tests/VideoHasStreamTests.cs
@@ -372,6 +372,29 @@ public class VideoHasStreamTests : VideoTestBase
         }
     }
     
+    [TestMethod]
+    public void VideoHasStream_Audio_Lang_Variable()
+    {
+        var args = GetVideoNodeParameters();
+
+        var vf = new VideoFile();
+        vf.PreExecute(args);
+        Assert.AreEqual(1, vf.Execute(args));
+
+        VideoHasStream element = new();
+        element.Stream = "Audio";
+        element.PreExecute(args);
+
+        foreach (var lang in new[] {  "orig", "original", "OriginalLanguage", "{OriginalLanguage}", "{orig}", })
+        {
+            Logger.ILog("###### Testing: " + lang);
+            args.Variables["OriginalLanguage"] = "eng";
+            element.Language = lang;
+            int output = element.Execute(args);
+            Assert.AreEqual(1, output);
+        }
+    }
+    
     [TestMethod]
     public void VideoHasStream_Audio_Lang_Fail()
     {