cache tweaks

src/BirdsiteLive.Common/Settings/InstanceSettings.cs

@@ -15,6 +15,7 @@
         public int FailingFollowerCleanUpThreshold { get; set; } = -1;
 
         public int UserCacheCapacity { get; set; }
+        public int TweetCacheCapacity { get; set; } = 20_000;
         public int ParallelTwitterRequests { get; set; } = 10;
         public int ParallelFediversePosts { get; set; } = 10;
     }

src/BirdsiteLive.Pipeline/StatusPublicationPipeline.cs

@@ -56,7 +56,9 @@ namespace BirdsiteLive.Pipeline
             retrieveFollowersBlock.LinkTo(retrieveFollowersBufferBlock, new DataflowLinkOptions { PropagateCompletion = true });
             retrieveFollowersBufferBlock.LinkTo(sendTweetsToFollowersBlock, new DataflowLinkOptions { PropagateCompletion = true });
 
-            // Launch twitter user retriever
+            // Launch twitter user retriever after a little delay
+            // to give time for the Tweet cache to fill
+            await Task.Delay(30 * 1000, ct);
             var retrieveTwitterAccountsTask = _retrieveTwitterAccountsProcessor.GetTwitterUsersAsync(twitterUserToRefreshBufferBlock, ct);
 
             // Wait

src/BirdsiteLive.Twitter/CachedTwitterTweetsService.cs

@@ -18,7 +18,6 @@ namespace BirdsiteLive.Twitter
 
         private readonly MemoryCache _tweetCache;
         private readonly MemoryCacheEntryOptions _cacheEntryOptions = new MemoryCacheEntryOptions()
-            .SetSize(10000)//Size amount
             //Priority on removing when reaching size limit (memory pressure)
             .SetPriority(CacheItemPriority.Low)
             // Keep in cache for this time, reset time if accessed.
@@ -33,7 +32,7 @@ namespace BirdsiteLive.Twitter
 
             _tweetCache = new MemoryCache(new MemoryCacheOptions()
             {
-                SizeLimit = 10000 //TODO make this use number of entries in db
+                SizeLimit = settings.TweetCacheCapacity, 
             });
         }
         #endregion

src/Tests/BirdsiteLive.Pipeline.Tests/StatusPublicationPipelineTests.cs

@@ -16,7 +16,7 @@ namespace BirdsiteLive.Pipeline.Tests
         public async Task ExecuteAsync_Test()
         {
             #region Stubs
-            var ct = new CancellationTokenSource(10);
+            var ct = new CancellationTokenSource(100 * 1000);
             #endregion
 
             #region Mocks