From 38c717bcef6fa5fcd2ff1c7901639eb888a94a8a Mon Sep 17 00:00:00 2001
From: Bogdan <mynameisbogdan@users.noreply.github.com>
Date: Sat, 29 Jul 2023 04:35:50 +0300
Subject: [PATCH] Dedupe releases based on indexer priority

---
 src/NzbDrone.Core/IndexerSearch/ReleaseSearchService.cs | 7 ++++---
 src/NzbDrone.Core/Indexers/IndexerDefinition.cs         | 9 ++++++++-
 2 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/src/NzbDrone.Core/IndexerSearch/ReleaseSearchService.cs b/src/NzbDrone.Core/IndexerSearch/ReleaseSearchService.cs
index 7ed143f157e..3135eced8b4 100644
--- a/src/NzbDrone.Core/IndexerSearch/ReleaseSearchService.cs
+++ b/src/NzbDrone.Core/IndexerSearch/ReleaseSearchService.cs
@@ -548,9 +548,10 @@ private List<DownloadDecision> Dispatch(Func<IIndexer, IEnumerable<ReleaseInfo>>
 
         private List<DownloadDecision> DeDupeDecisions(List<DownloadDecision> decisions)
         {
-            // De-dupe reports by guid so duplicate results aren't returned. Pick the one with the least rejections.
-
-            return decisions.GroupBy(d => d.RemoteEpisode.Release.Guid).Select(d => d.OrderBy(v => v.Rejections.Count()).First()).ToList();
+            // De-dupe reports by guid so duplicate results aren't returned. Pick the one with the least rejections and higher indexer priority.
+            return decisions.GroupBy(d => d.RemoteEpisode.Release.Guid)
+                .Select(d => d.OrderBy(v => v.Rejections.Count()).ThenBy(v => v.RemoteEpisode?.Release?.IndexerPriority ?? IndexerDefinition.DefaultPriority).First())
+                .ToList();
         }
     }
 }
diff --git a/src/NzbDrone.Core/Indexers/IndexerDefinition.cs b/src/NzbDrone.Core/Indexers/IndexerDefinition.cs
index ef30dc7fb44..882624ab400 100644
--- a/src/NzbDrone.Core/Indexers/IndexerDefinition.cs
+++ b/src/NzbDrone.Core/Indexers/IndexerDefinition.cs
@@ -4,6 +4,13 @@ namespace NzbDrone.Core.Indexers
 {
     public class IndexerDefinition : ProviderDefinition
     {
+        public const int DefaultPriority = 25;
+
+        public IndexerDefinition()
+        {
+            Priority = DefaultPriority;
+        }
+
         public bool EnableRss { get; set; }
         public bool EnableAutomaticSearch { get; set; }
         public bool EnableInteractiveSearch { get; set; }
@@ -11,7 +18,7 @@ public class IndexerDefinition : ProviderDefinition
         public DownloadProtocol Protocol { get; set; }
         public bool SupportsRss { get; set; }
         public bool SupportsSearch { get; set; }
-        public int Priority { get; set; } = 25;
+        public int Priority { get; set; }
         public int SeasonSearchMaximumSingleEpisodeAge { get; set; }
 
         public override bool Enable => EnableRss || EnableAutomaticSearch || EnableInteractiveSearch;