From 835611547f2e8eec44c26b4a4de72997f4c6c511 Mon Sep 17 00:00:00 2001
From: JustArchi <JustArchi@JustArchi.net>
Date: Sat, 20 Feb 2021 23:49:05 +0100
Subject: [PATCH] Mist optimization

No need to initialize assetIDs if inventory is empty. Also we know exact amount of items this way.
---
 ArchiSteamFarm/ArchiWebHandler.cs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/ArchiSteamFarm/ArchiWebHandler.cs b/ArchiSteamFarm/ArchiWebHandler.cs
index d7c089bf6..04ba72d50 100644
--- a/ArchiSteamFarm/ArchiWebHandler.cs
+++ b/ArchiSteamFarm/ArchiWebHandler.cs
@@ -149,7 +149,7 @@ namespace ArchiSteamFarm {
 			ulong startAssetID = 0;
 
 			// We need to store asset IDs to make sure we won't get duplicate items
-			HashSet<ulong> assetIDs = new();
+			HashSet<ulong>? assetIDs = null;
 
 			while (true) {
 				await ASF.InventorySemaphore.WaitAsync().ConfigureAwait(false);
@@ -170,6 +170,8 @@ namespace ArchiSteamFarm {
 						yield break;
 					}
 
+					assetIDs ??= new HashSet<ulong>((int) response.Content.TotalInventoryCount);
+
 					if ((response.Content.Assets.Count == 0) || (response.Content.Descriptions.Count == 0)) {
 						throw new NotSupportedException(string.Format(CultureInfo.CurrentCulture, Strings.ErrorObjectIsNull, nameof(response.Content.Assets) + " || " + nameof(response.Content.Descriptions)));
 					}