From d5c83347c7e1789adf2abcbef312207778361e4b Mon Sep 17 00:00:00 2001
From: BtbN <btbn@btbn.de>
Date: Thu, 6 Jun 2019 18:34:37 +0200
Subject: [PATCH] Don't actively remove cached recommendations, let them
 expire.

---
 ClanServer/Controllers/L44/Gametop.cs   | 6 +-----
 ClanServer/Controllers/L44/Recommend.cs | 3 ++-
 2 files changed, 3 insertions(+), 6 deletions(-)

diff --git a/ClanServer/Controllers/L44/Gametop.cs b/ClanServer/Controllers/L44/Gametop.cs
index a85e153..ee6bee4 100644
--- a/ClanServer/Controllers/L44/Gametop.cs
+++ b/ClanServer/Controllers/L44/Gametop.cs
@@ -20,11 +20,9 @@ namespace ClanServer.Controllers.L44
     public class GametopController : ControllerBase
     {
         private readonly ClanServerContext ctx;
-        private readonly IMemoryCache cache;
 
-        public GametopController(IMemoryCache cache, ClanServerContext ctx)
+        public GametopController(ClanServerContext ctx)
         {
-            this.cache = cache;
             this.ctx = ctx;
         }
 
@@ -163,8 +161,6 @@ namespace ClanServer.Controllers.L44
             bool changed = false;
             bool freshProfile = false;
 
-            cache.Remove(CacheKeys.GetRecommendedSongsKey(profile.ID));
-
             if (profile.ClanData == null)
             {
                 Random rng = new Random();
diff --git a/ClanServer/Controllers/L44/Recommend.cs b/ClanServer/Controllers/L44/Recommend.cs
index 7eae12f..57895d5 100644
--- a/ClanServer/Controllers/L44/Recommend.cs
+++ b/ClanServer/Controllers/L44/Recommend.cs
@@ -34,7 +34,8 @@ namespace ClanServer.Controllers.L44
             List<int> recommendedMusic =
                 await cache.GetOrCreateAsync(CacheKeys.GetRecommendedSongsKey(jid), async entry =>
                 {
-                    entry.SlidingExpiration = TimeSpan.FromMinutes(30);
+                    entry.AbsoluteExpirationRelativeToNow = TimeSpan.FromMinutes(30);
+                    entry.SlidingExpiration = TimeSpan.FromMinutes(2);
                     return (await ClanMusicInfo.Instance).GetRandomSongs(10);
                 });