Adds a refund button & action upgrades for stores (#24518)

* adds refunds to stores

* Adds method to check for starting map

* comments, datafields, some requested changes

* turns event into ref event

* Adds datafields

* Switches to entity terminating event

* Changes store entity to be nullable and checks if store is terminating to remove reference.

* Tryadd instead of containskey

* Adds a refund disable method, disables refund on bought ent container changes if not an action

* Removes datafield specification

* Readds missing using statement

* Removes unused using statements

* What the heck is listing data

---------

Co-authored-by: metalgearsloth <comedian_vs_clown@hotmail.com>

Content.Shared/Store/ListingPrototype.cs

@@ -2,6 +2,7 @@ using System.Linq;
 using Content.Shared.FixedPoint;
 using Robust.Shared.Prototypes;
 using Robust.Shared.Serialization;
+using Robust.Shared.Serialization.TypeSerializers.Implementations;
 using Robust.Shared.Serialization.TypeSerializers.Implementations.Custom.Prototype;
 using Robust.Shared.Serialization.TypeSerializers.Implementations.Custom.Prototype.Dictionary;
 using Robust.Shared.Serialization.TypeSerializers.Implementations.Custom.Prototype.List;
@@ -77,6 +78,20 @@ public partial class ListingData : IEquatable<ListingData>, ICloneable
     [DataField("productAction", customTypeSerializer: typeof(PrototypeIdSerializer<EntityPrototype>))]
     public string? ProductAction;
 
+    /// <summary>
+    ///     The listing ID of the related upgrade listing. Can be used to link a <see cref="ProductAction"/> to an
+    ///         upgrade or to use standalone as an upgrade
+    /// </summary>
+    [DataField]
+    public ProtoId<ListingPrototype>? ProductUpgradeID;
+
+    /// <summary>
+    ///     Keeps track of the current action entity this is tied to, for action upgrades
+    /// </summary>
+    [DataField]
+    [NonSerialized]
+    public EntityUid? ProductActionEntity;
+
     /// <summary>
     /// The event that is broadcast when the listing is purchased.
     /// </summary>
@@ -105,6 +120,7 @@ public partial class ListingData : IEquatable<ListingData>, ICloneable
             Description != listing.Description ||
             ProductEntity != listing.ProductEntity ||
             ProductAction != listing.ProductAction ||
+            ProductActionEntity != listing.ProductActionEntity ||
             ProductEvent != listing.ProductEvent ||
             RestockTime != listing.RestockTime)
             return false;
@@ -146,6 +162,8 @@ public partial class ListingData : IEquatable<ListingData>, ICloneable
             Priority = Priority,
             ProductEntity = ProductEntity,
             ProductAction = ProductAction,
+            ProductUpgradeID = ProductUpgradeID,
+            ProductActionEntity = ProductActionEntity,
             ProductEvent = ProductEvent,
             PurchaseAmount = PurchaseAmount,
             RestockTime = RestockTime,

Content.Shared/Store/StoreUi.cs

@@ -18,11 +18,14 @@ public sealed class StoreUpdateState : BoundUserInterfaceState
 
     public readonly bool ShowFooter;
 
-    public StoreUpdateState(HashSet<ListingData> listings, Dictionary<string, FixedPoint2> balance, bool showFooter)
+    public readonly bool AllowRefund;
+
+    public StoreUpdateState(HashSet<ListingData> listings, Dictionary<string, FixedPoint2> balance, bool showFooter, bool allowRefund)
     {
         Listings = listings;
         Balance = balance;
         ShowFooter = showFooter;
+        AllowRefund = allowRefund;
     }
 }
 
@@ -72,3 +75,12 @@ public sealed class StoreRequestWithdrawMessage : BoundUserInterfaceMessage
         Amount = amount;
     }
 }
+
+/// <summary>
+///     Used when the refund button is pressed
+/// </summary>
+[Serializable, NetSerializable]
+public sealed class StoreRequestRefundMessage : BoundUserInterfaceMessage
+{
+
+}