Hotfix: Fix uplinks allowing buying conditionally restricted items (#35334)

* Initial commit

* I just compressed the code

* Actually address review

Content.Server/Store/Systems/StoreSystem.Listings.cs

@@ -1,4 +1,5 @@
 using System.Diagnostics.CodeAnalysis;
+using Content.Shared.Mind;
 using Content.Shared.Store;
 using Content.Shared.Store.Components;
 using Robust.Shared.Prototypes;
@@ -117,7 +118,7 @@ public sealed partial class StoreSystem
 
             if (listing.Conditions != null)
             {
-                var args = new ListingConditionArgs(buyer, storeEntity, listing, EntityManager);
+                var args = new ListingConditionArgs(GetBuyerMind(buyer), storeEntity, listing, EntityManager);
                 var conditionsMet = true;
 
                 foreach (var condition in listing.Conditions)
@@ -137,6 +138,19 @@ public sealed partial class StoreSystem
         }
     }
 
+    /// <summary>
+    /// Returns the entity's mind entity, if it has one, to be used for listing conditions.
+    /// If it doesn't have one, or is a mind entity already, it returns itself.
+    /// </summary>
+    /// <param name="buyer">The buying entity.</param>
+    public EntityUid GetBuyerMind(EntityUid buyer)
+    {
+        if (!HasComp<MindComponent>(buyer) && _mind.TryGetMind(buyer, out var buyerMind, out var _))
+            return buyerMind;
+
+        return buyer;
+    }
+
     /// <summary>
     /// Checks if a listing appears in a list of given categories
     /// </summary>

Content.Server/Store/Systems/StoreSystem.Ui.cs

@@ -146,7 +146,7 @@ public sealed partial class StoreSystem
         //condition checking because why not
         if (listing.Conditions != null)
         {
-            var args = new ListingConditionArgs(component.AccountOwner ?? buyer, uid, listing, EntityManager);
+            var args = new ListingConditionArgs(component.AccountOwner ?? GetBuyerMind(buyer), uid, listing, EntityManager);
             var conditionsMet = listing.Conditions.All(condition => condition.Condition(args));
 
             if (!conditionsMet)