Implement buying merchandise off shelf

Refreshes the shelf after buying and after closing chest.

Source/Scripts/BRMerchActivatorScript.psc

@@ -1,10 +1,85 @@
 scriptname BRMerchActivatorScript extends ObjectReference
 
-Actor Property PlayerRef Auto
+Keyword property BRLinkMerchShelf auto
+Keyword property BRLinkMerchChest auto
+Keyword property BRLinkItemRef auto
+Keyword property BRLinkActivatorRef auto
+Keyword property BRLinkMerchToggle auto
+Keyword property BRLinkMerchNext auto
+Keyword property BRLinkMerchPrev auto
+Activator property ActivatorStatic auto
+Actor property PlayerRef auto
+Quest property BRQuest auto
+MiscObject property Gold001 auto
 
-Event OnActivate(ObjectReference akActionRef)
+event OnActivate(ObjectReference akActionRef)
     if akActionRef == PlayerRef
-        Form merch = BRMerchandiseList.Buy(self)
+        debug.Trace("BRMerchActivatorScript OnActivate by PlayerRef")
-        PlayerRef.AddItem(merch, 1)
+        int totalQuantity = BRMerchandiseList.GetQuantity(self)
+        int price = BRMerchandiseList.GetPrice(self)
+
+        BRQuestScript BRScript = BRQuest as BRQuestScript
+        ObjectReference merchRef = self.GetLinkedRef(BRLinkItemRef)
+        Form selectedMerchandiseRepl = BRScript.SelectedMerchandise.GetBaseObject()
+        selectedMerchandiseRepl.SetName(merchRef.GetBaseObject().GetName())
+        bool inBuyMenu = true
+        int quantity = 1
+        while inBuyMenu
+            int amount = quantity * price
+            int choice = BRScript.BuyMerchandiseMessage.Show(quantity as float, totalQuantity as float, amount as float, price as float)
+            if choice == 0
+                bool result = BRTransaction.Create(BRScript.ApiUrl, BRScript.ApiKey, BRScript.ActiveShopId, false, quantity, amount, BRLinkItemRef, self)
+                if !result
+                    Debug.MessageBox("Failed to buy merchandise.\n\n" + BRScript.BugReportCopy)
+                endif
+                inBuyMenu = false
+            elseif choice == 1
+                bool result = BRTransaction.Create(BRScript.ApiUrl, BRScript.ApiKey, BRScript.ActiveShopId, false, totalQuantity, totalQuantity * price, BRLinkItemRef, self)
+                if !result
+                    Debug.MessageBox("Failed to buy merchandise.\n\n" + BRScript.BugReportCopy)
+                endif
+                inBuyMenu = false
+            elseif choice == 2
+                string enteredQuantity = BRScript.UILib.ShowTextInput("Enter Quantity", "")
+                if enteredQuantity as int == 0
+                    debug.Notification("Failed to parse a valid quantity. Enter a number between 1 and " + totalQuantity)
+                elseif enteredQuantity < 1
+                    debug.Notification("Entered quantity less than minimum quantity: 1. Setting quantity to 1")
+                    quantity = 1
+                elseif enteredQuantity as int > totalQuantity
+                    debug.Notification("Entered quantity greater than maximum quantity: " + totalQuantity + ". Setting quantity to " + totalQuantity)
+                    quantity = totalQuantity
+                else
+                    quantity = enteredQuantity as int
+                endif
+            else
+                inBuyMenu = false
+            endif
+        endWhile
+        selectedMerchandiseRepl.SetName("Selected Merchandise")
     endif
-EndEvent
+endEvent
+
+function RefreshMerchandise()
+    BRQuestScript BRScript = BRQuest as BRQuestScript
+    ObjectReference merchantShelf = self.GetLinkedRef(BRLinkMerchShelf)
+    if !BRMerchandiseList.Refresh(BRScript.ApiUrl, BRScript.ApiKey, BRScript.ActiveShopId, merchantShelf, ActivatorStatic, BRLinkMerchShelf, BRLinkMerchChest, BRLinkItemRef, BRLinkActivatorRef, BRLinkMerchToggle, BRLinkMerchNext, BRLinkMerchPrev)
+        Debug.MessageBox("Failed refresh merchandise.\n\n" + BRScript.BugReportCopy)
+    endif
+endFunction
+
+event OnCreateTransactionSuccess(int id, int quantity, int amount)
+    debug.Trace("BRMerchActivatorScript OnCreateTransactionSuccess id: " + id + " quantity: " + quantity + " amount: " + amount)
+    ObjectReference merchRef = self.GetLinkedRef(BRLinkItemRef)
+    PlayerRef.RemoveItem(Gold001, amount)
+    PlayerRef.AddItem(merchRef.GetBaseObject(), quantity)
+    RefreshMerchandise()
+endEvent
+
+; TODO: gracefully handle expected error cases (e.g. someone else buys all of item before this player can buy them)
+Event OnCreateTransactionFail(string error)
+    Debug.Trace("BRMerchActivatorScript OnCreateTransactionFail error: " + error)
+    BRQuestScript BRScript = BRQuest as BRQuestScript
+    Debug.MessageBox("Failed to buy merchandise.\n\n" + error + "\n\n" + BRScript.BugReportCopy)
+    RefreshMerchandise()
+endEvent

Source/Scripts/BRMerchChestScript.psc

@@ -1,5 +1,13 @@
 Scriptname BRMerchChestScript extends ObjectReference
 
+Keyword property BRLinkMerchShelf auto
+Keyword property BRLinkMerchChest auto
+Keyword property BRLinkItemRef auto
+Keyword property BRLinkActivatorRef auto
+Keyword property BRLinkMerchToggle auto
+Keyword property BRLinkMerchNext auto
+Keyword property BRLinkMerchPrev auto
+Activator property ActivatorStatic auto
 Actor Property PlayerRef Auto
 Quest Property BRQuest Auto
 
@@ -28,6 +36,11 @@ event OnCreateMerchandiseSuccess(bool created, int id)
         BRQuestScript BRScript = BRQuest as BRQuestScript
         BRScript.MerchandiseListId = id;
         Debug.Notification("Saved merchandise successfully")
+
+        ObjectReference merchantShelf = self.GetLinkedRef(BRLinkMerchShelf)
+        if !BRMerchandiseList.Refresh(BRScript.ApiUrl, BRScript.ApiKey, BRScript.ActiveShopId, merchantShelf, ActivatorStatic, BRLinkMerchShelf, BRLinkMerchChest, BRLinkItemRef, BRLinkActivatorRef, BRLinkMerchToggle, BRLinkMerchNext, BRLinkMerchPrev)
+            Debug.MessageBox("Failed refresh merchandise.\n\n" + BRScript.BugReportCopy)
+        endif
     else
         Debug.Trace("BRMerchChestScript no container changes to save to the server")
     endif

Source/Scripts/BRMerchandiseList.psc

@@ -4,9 +4,12 @@ scriptname BRMerchandiseList
 bool function Toggle(string apiUrl, string apiKey, int shop_id, ObjectReference merchantShelf, Form activatorStatic, Keyword shelfKeyword, Keyword chestKeyword, Keyword itemKeyword, Keyword activatorKeyword, Keyword toggleKeyword, Keyword nextKeyword, Keyword prevKeyword) global native
 bool function NextPage(string apiUrl, string apiKey, int shop_id, ObjectReference merchantShelf, Form activatorStatic, Keyword shelfKeyword, Keyword chestKeyword, Keyword itemKeyword, Keyword activatorKeyword, Keyword toggleKeyword, Keyword nextKeyword, Keyword prevKeyword) global native
 bool function PrevPage(string apiUrl, string apiKey, int shop_id, ObjectReference merchantShelf, Form activatorStatic, Keyword shelfKeyword, Keyword chestKeyword, Keyword itemKeyword, Keyword activatorKeyword, Keyword toggleKeyword, Keyword nextKeyword, Keyword prevKeyword) global native
+bool function Load(string apiUrl, string apiKey, int shop_id, ObjectReference merchantShelf, Form activatorStatic, Keyword shelfKeyword, Keyword chestKeyword, Keyword itemKeyword, Keyword activatorKeyword, Keyword toggleKeyword, Keyword nextKeyword, Keyword prevKeyword) global native
+bool function Refresh(string apiUrl, string apiKey, int shop_id, ObjectReference merchantShelf, Form activatorStatic, Keyword shelfKeyword, Keyword chestKeyword, Keyword itemKeyword, Keyword activatorKeyword, Keyword toggleKeyword, Keyword nextKeyword, Keyword prevKeyword) global native
 
 bool function Replace3D(ObjectReference merchantShelf, Form activatorStatic, Keyword shelfKeyword, Keyword itemKeyword) global native
 
-Form function Buy(ObjectReference merchandiseActivator) global native
+bool function Create(string apiUrl, string apiKey, int shopId, ObjectReference merchantChest) global native
 
-bool function Create(string apiUrl, string apiKey, int shopId, ObjectReference merchantChest) global native
+int function GetQuantity(ObjectReference activator) global native
+int function GetPrice(ObjectReference activator) global native

Source/Scripts/BRQuestScript.psc

@@ -20,9 +20,13 @@ int property ActiveShopId auto
 string property ActiveShopName auto
 string property ActiveShopDescription auto
 ; references
-actor property PlayerRef auto
+Actor property PlayerRef auto
 ObjectReference property ShopXMarker auto
-message property ShopDetailMessage auto
+; messages
+Message property ShopDetailMessage auto
+Message property BuyMerchandiseMessage auto
+; message replacement refs
+ObjectReference property SelectedMerchandise auto
 ; UI sync properties
 bool property StartModFailed = false auto
 bool property UpdateShopComplete = false auto

Source/Scripts/BRTransaction.psc

@@ -0,0 +1,3 @@
+scriptname BRTransaction
+
+bool function Create(string apiUrl, string apiKey, int shop_id, bool is_sell, int quantity, int amount, Keyword item_keyword, ObjectReference activator) global native