Generalized Store System (#10201)

Content.Server/Store/Conditions/ListingLimitedStockCondition.cs

@@ -0,0 +1,20 @@
+using Content.Shared.Store;
+
+namespace Content.Server.Store.Conditions;
+
+/// <summary>
+/// Only allows a listing to be purchased a certain amount of times.
+/// </summary>
+public sealed class ListingLimitedStockCondition : ListingCondition
+{
+    /// <summary>
+    /// The amount of times this listing can be purchased.
+    /// </summary>
+    [DataField("stock", required: true)]
+    public int Stock;
+
+    public override bool Condition(ListingConditionArgs args)
+    {
+        return args.Listing.PurchaseAmount < Stock;
+    }
+}