From 3b6e20908e59ace2cb902be68730e57b2597adf5 Mon Sep 17 00:00:00 2001
From: Qstick <qstick@gmail.com>
Date: Sun, 26 Apr 2020 15:16:56 -0400
Subject: [PATCH] Fixed: Don't Throw Error if No Movies on Discover

Fixes #4356
---
 .../MetadataSource/SkyHook/SkyHookProxy.cs        | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/src/NzbDrone.Core/MetadataSource/SkyHook/SkyHookProxy.cs b/src/NzbDrone.Core/MetadataSource/SkyHook/SkyHookProxy.cs
index 0a2cfd0211..cb25c5dd84 100644
--- a/src/NzbDrone.Core/MetadataSource/SkyHook/SkyHookProxy.cs
+++ b/src/NzbDrone.Core/MetadataSource/SkyHook/SkyHookProxy.cs
@@ -376,11 +376,18 @@ public Movie GetMovieInfo(string imdbId)
         public List<Movie> DiscoverNewMovies(string action)
         {
             var allMovies = _movieService.GetAllMovies();
-            var allExclusions = _exclusionService.GetAllExclusions();
-            string allIds = string.Join(",", allMovies.Select(m => m.TmdbId));
-            string ignoredIds = string.Join(",", allExclusions.Select(ex => ex.TmdbId));
 
-            List<MovieResult> results = new List<MovieResult>();
+            if (!allMovies.Any())
+            {
+                _logger.Debug("Skipping discover, no movies in library");
+                return new List<Movie>();
+            }
+
+            var allExclusions = _exclusionService.GetAllExclusions();
+            var allIds = string.Join(",", allMovies.Select(m => m.TmdbId));
+            var ignoredIds = string.Join(",", allExclusions.Select(ex => ex.TmdbId));
+
+            var results = new List<MovieResult>();
 
             try
             {