From 2bac4f85ad1dfe23710554ceee5ffea093092157 Mon Sep 17 00:00:00 2001
From: Luke Pulverenti <luke.pulverenti@gmail.com>
Date: Tue, 21 Mar 2017 13:31:40 -0400
Subject: improve next up performance

---
 Emby.Server.Implementations/TV/TVSeriesManager.cs | 29 +++++++++++++----------
 1 file changed, 17 insertions(+), 12 deletions(-)

(limited to 'Emby.Server.Implementations')

diff --git a/Emby.Server.Implementations/TV/TVSeriesManager.cs b/Emby.Server.Implementations/TV/TVSeriesManager.cs
index 9dfaa102a..b5e64bc23 100644
--- a/Emby.Server.Implementations/TV/TVSeriesManager.cs
+++ b/Emby.Server.Implementations/TV/TVSeriesManager.cs
@@ -77,7 +77,7 @@ namespace Emby.Server.Implementations.TV
             // Avoid implicitly captured closure
             var episodes = GetNextUpEpisodes(request, user, items);
 
-            return GetResult(episodes, null, request);
+            return GetResult(episodes, request);
         }
 
         public QueryResult<BaseItem> GetNextUp(NextUpQuery request, List<Folder> parentsFolders)
@@ -128,7 +128,7 @@ namespace Emby.Server.Implementations.TV
             // Avoid implicitly captured closure
             var episodes = GetNextUpEpisodes(request, user, items);
 
-            return GetResult(episodes, null, request);
+            return GetResult(episodes, request);
         }
 
         public IEnumerable<Episode> GetNextUpEpisodes(NextUpQuery request, User user, IEnumerable<string> seriesKeys)
@@ -163,8 +163,7 @@ namespace Emby.Server.Implementations.TV
                     return false;
                 })
                 .Select(i => i.Item2())
-                .Where(i => i != null)
-                .Take(request.Limit ?? int.MaxValue);
+                .Where(i => i != null);
         }
 
         private string GetUniqueSeriesKey(BaseItem series)
@@ -232,24 +231,30 @@ namespace Emby.Server.Implementations.TV
             return new Tuple<DateTime, Func<Episode>>(DateTime.MinValue, getEpisode);
         }
 
-        private QueryResult<BaseItem> GetResult(IEnumerable<BaseItem> items, int? totalRecordLimit, NextUpQuery query)
+        private QueryResult<BaseItem> GetResult(IEnumerable<BaseItem> items, NextUpQuery query)
         {
-            var itemsArray = totalRecordLimit.HasValue ? items.Take(totalRecordLimit.Value).ToArray() : items.ToArray();
-            var totalCount = itemsArray.Length;
+            int totalCount = 0;
 
-            if (query.Limit.HasValue)
+            if (query.EnableTotalRecordCount)
             {
-                itemsArray = itemsArray.Skip(query.StartIndex ?? 0).Take(query.Limit.Value).ToArray();
+                var list = items.ToList();
+                totalCount = list.Count;
+                items = list;
             }
-            else if (query.StartIndex.HasValue)
+
+            if (query.StartIndex.HasValue)
+            {
+                items = items.Skip(query.StartIndex.Value);
+            }
+            if (query.Limit.HasValue)
             {
-                itemsArray = itemsArray.Skip(query.StartIndex.Value).ToArray();
+                items = items.Take(query.Limit.Value);
             }
 
             return new QueryResult<BaseItem>
             {
                 TotalRecordCount = totalCount,
-                Items = itemsArray
+                Items = items.ToArray()
             };
         }
     }
-- 
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