New: Treat batch releases with total episode count as full season release

Closes #6757

src/NzbDrone.Core.Test/ParserTests/SeasonParserFixture.cs

@@ -31,6 +31,8 @@ namespace NzbDrone.Core.Test.ParserTests
         [TestCase("Series.Stagione.3.HDTV.XviD-NOTAG", "Series", 3)]
         [TestCase("Series.Stagione.3.HDTV.XviD-NOTAG", "Series", 3)]
         [TestCase("Series No More S01 2023 1080p WEB-DL AVC AC3 2.0 Dual Audio -ZR-", "Series No More", 1)]
+        [TestCase("Series Title / S1E1-8 of 8 [2024, WEB-DL 1080p] + Original + RUS", "Series Title", 1)]
+        [TestCase("Series Title / S2E1-16 of 16 [2022, WEB-DL] RUS", "Series Title", 2)]
         public void should_parse_full_season_release(string postTitle, string title, int season)
         {
             var result = Parser.Parser.ParseTitle(postTitle);

src/NzbDrone.Core/Parser/Parser.cs

@@ -183,7 +183,7 @@ namespace NzbDrone.Core.Parser
                           RegexOptions.IgnoreCase | RegexOptions.Compiled),
 
                 // Single or multi episode releases with multiple titles, then season and episode numbers after the last title. (Title1 / Title2 / ... / S1E1-2 of 6)
-                new Regex(@"^((?<title>.*?)[ ._]\/[ ._])+\(?S(?<season>(?<!\d+)\d{1,2}(?!\d+))(?:\W|_)?E?[ ._]?(?<episode>(?<!\d+)\d{1,2}(?!\d+))(?:-(?<episode>(?<!\d+)\d{1,2}(?!\d+)))?([ ._]of[ ._]\d+)?\)?[ ._][\(\[]",
+                new Regex(@"^((?<title>.*?)[ ._]\/[ ._])+\(?S(?<season>(?<!\d+)\d{1,2}(?!\d+))(?:\W|_)?E?[ ._]?(?<episode>(?<!\d+)\d{1,2}(?!\d+))(?:-(?<episode>(?<!\d+)\d{1,2}(?!\d+)))?(?:[ ._]of[ ._](?<episodecount>\d{1,2}))?\)?[ ._][\(\[]",
                     RegexOptions.IgnoreCase | RegexOptions.Compiled),
 
                 // Multi-episode with title (S01E99-100, S01E05-06)
@@ -1087,6 +1087,12 @@ namespace NzbDrone.Core.Parser
                             result.FullSeason = true;
                         }
                     }
+
+                    if (episodeCaptures.Count == 2 && matchCollection[0].Groups["episodecount"].Success && episodeCaptures.Last().Value == matchCollection[0].Groups["episodecount"].Value)
+                    {
+                        result.EpisodeNumbers = Array.Empty<int>();
+                        result.FullSeason = true;
+                    }
                 }
 
                 var seasons = new List<int>();