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.Client/Store/Ui/StoreBoundUserInterface.cs

@@ -48,6 +48,11 @@ public sealed class StoreBoundUserInterface : BoundUserInterface
         {
             SendMessage(new StoreRequestUpdateInterfaceMessage());
         };
+
+        _menu.OnRefundAttempt += (_) =>
+        {
+            SendMessage(new StoreRequestRefundMessage());
+        };
     }
     protected override void UpdateState(BoundUserInterfaceState state)
     {
@@ -64,6 +69,7 @@ public sealed class StoreBoundUserInterface : BoundUserInterface
 
                 _menu.UpdateListing(msg.Listings.ToList());
                 _menu.SetFooterVisibility(msg.ShowFooter);
+                _menu.UpdateRefund(msg.AllowRefund);
                 break;
             case StoreInitializeState msg:
                 _windowName = msg.Name;

Content.Client/Store/Ui/StoreMenu.xaml

@@ -22,6 +22,11 @@
                     MinWidth="64"
                     HorizontalAlignment="Right"
                     Text="{Loc 'store-ui-default-withdraw-text'}" />
+                <Button
+                    Name="RefundButton"
+                    MinWidth="64"
+                    HorizontalAlignment="Right"
+                    Text="Refund" />
             </BoxContainer>
             <PanelContainer VerticalExpand="True">
                 <PanelContainer.PanelOverride>

Content.Client/Store/Ui/StoreMenu.xaml.cs

@@ -31,6 +31,7 @@ public sealed partial class StoreMenu : DefaultWindow
     public event Action<BaseButton.ButtonEventArgs, string>? OnCategoryButtonPressed;
     public event Action<BaseButton.ButtonEventArgs, string, int>? OnWithdrawAttempt;
     public event Action<BaseButton.ButtonEventArgs>? OnRefreshButtonPressed;
+    public event Action<BaseButton.ButtonEventArgs>? OnRefundAttempt;
 
     public Dictionary<string, FixedPoint2> Balance = new();
     public string CurrentCategory = string.Empty;
@@ -44,6 +45,8 @@ public sealed partial class StoreMenu : DefaultWindow
 
         WithdrawButton.OnButtonDown += OnWithdrawButtonDown;
         RefreshButton.OnButtonDown += OnRefreshButtonDown;
+        RefundButton.OnButtonDown += OnRefundButtonDown;
+
         if (Window != null)
             Window.Title = name;
     }
@@ -116,6 +119,11 @@ public sealed partial class StoreMenu : DefaultWindow
         _withdrawWindow.OnWithdrawAttempt += OnWithdrawAttempt;
     }
 
+    private void OnRefundButtonDown(BaseButton.ButtonEventArgs args)
+    {
+        OnRefundAttempt?.Invoke(args);
+    }
+
     private void AddListingGui(ListingData listing)
     {
         if (!listing.Categories.Contains(CurrentCategory))
@@ -262,6 +270,11 @@ public sealed partial class StoreMenu : DefaultWindow
         _withdrawWindow?.Close();
     }
 
+    public void UpdateRefund(bool allowRefund)
+    {
+        RefundButton.Disabled = !allowRefund;
+    }
+
     private sealed class StoreCategoryButton : Button
     {
         public string? Id;