From 5a44403cf0bf3c2bc1f84abd3ca4467c424a9278 Mon Sep 17 00:00:00 2001
From: Vitaliy <vichuma9@gmail.com>
Date: Thu, 24 Dec 2020 22:20:57 +0300
Subject: [PATCH] Add check for appIDs after intersection (#2099)

---
 ArchiSteamFarm/Bot.cs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/ArchiSteamFarm/Bot.cs b/ArchiSteamFarm/Bot.cs
index cae268a00..baa1ca291 100755
--- a/ArchiSteamFarm/Bot.cs
+++ b/ArchiSteamFarm/Bot.cs
@@ -3194,6 +3194,11 @@ namespace ArchiSteamFarm {
 
 					Dictionary<(uint RealAppID, Steam.Asset.EType Type, Steam.Asset.ERarity Rarity), List<uint>> inventorySets = Trading.GetInventorySets(inventory);
 					appIDs.IntersectWith(inventorySets.Where(kv => kv.Value.Count >= MinimumCardsPerBadge).Select(kv => kv.Key.RealAppID));
+
+					if (appIDs.Count == 0) {
+						return;
+					}
+
 					Dictionary<uint, byte>? cardCountPerAppID = await LoadCardsPerSet(appIDs).ConfigureAwait(false);
 
 					if ((cardCountPerAppID == null) || (cardCountPerAppID.Count == 0)) {