Generalize vendor price display across all tooltip types

Replace the single GameTooltip hook with a comprehensive hooking system that displays vendor prices across 17+ tooltip methods, including loot, quests, bags, mail, auctions, trades, merchants, and crafting. This ensures players see vendor prices consistently regardless of where they view items.

modules/sellvalue.lua

@@ -1,13 +1,11 @@
 pfUI:RegisterModule("sellvalue", function ()
   local function AddVendorPrices(frame, id, count)
     if not id then return end
-    -- Sell price comes from the engine (item DBC); buy price from pfSellData
-    -- (curated vendor data, since vendor purchase prices aren't a static field).
     local sell = C_Item.GetItemSellPriceByID(id) or 0
     local buy = pfSellData[id]
     if sell == 0 and not buy then return end
 
-    if C.tooltip.vendor.showalways == "1" or IsShiftKeyDown()  then
+    if C.tooltip.vendor.showalways == "1" or IsShiftKeyDown() then
       frame:AddLine(" ")
 
       if sell > 0 then
@@ -29,17 +27,6 @@ pfUI:RegisterModule("sellvalue", function ()
     frame:Show()
   end
 
-  pfUI.sellvalue = CreateFrame("Frame", "pfGameTooltip", GameTooltip)
-  pfUI.sellvalue:SetScript("OnShow", function()
-    if GameTooltip:HasItem() then
-      local _, _, id = GameTooltip:GetItem()
-      if id then
-        local count = tonumber(libtooltip:GetItemCount()) or 1
-        AddVendorPrices(GameTooltip, id, math.max(count, 1))
-      end
-    end
-  end)
-
   pfUI.hooksecurefunc("SetItemRef", function()
     if IsModifierKeyDown() then return end
     if ItemRefTooltip:HasItem() then
@@ -47,4 +34,138 @@ pfUI:RegisterModule("sellvalue", function ()
       if id then AddVendorPrices(ItemRefTooltip, id, 1) end
     end
   end)
+
+  local TooltipHooks = {
+    SetLootRollItem = {
+      id = GetLootRollItemID,
+      count = function(slot)
+        local _, _, count = GetLootRollItemInfo(slot)
+        return count
+      end
+    },
+    SetLootItem = {
+      id = GetLootSlotItemID,
+      count = function(slot)
+        local _, _, count = GetLootSlotInfo(slot)
+        return count
+      end
+    },
+    SetQuestLogItem = {
+      id = GetQuestLogItemID,
+      count = function(type, index)
+        local itemCount, _;
+        if type == "choice" then
+          _, _, itemCount = GetQuestLogChoiceInfo(index);
+        else
+          _, _, itemCount = GetQuestLogRewardInfo(index)
+        end
+        return itemCount
+      end,
+    },
+    SetQuestItem = {
+      id = GetQuestItemID,
+      count = function(type, index)
+        local _, _, count = GetQuestItemInfo(type, index);
+        return count
+      end,
+    },
+    SetHyperlink = { id = C_Item.GetItemInfoInstant },
+    SetBagItem = {
+      id = C_Container.GetContainerItemID,
+      count = function(container, slot)
+        local _, count = GetContainerItemInfo(container, slot)
+        return count
+      end,
+    },
+    SetInboxItem = {
+      id = GetInboxItemID,
+      count = function(index)
+        local _, _, _, count = GetInboxItem(index)
+        return count
+      end,
+    },
+    SetSendMailItem = {
+      id = function()
+        local _, id = GetSendMailItemLink()
+        return id
+      end,
+      count = function()
+        local _, _, count = GetSendMailItem()
+        return count
+      end,
+    },
+    SetInventoryItem = { id = GetInventoryItemID },
+    SetTradeSkillItem = {
+      id = function(skillIndex, reagentIndex)
+        if reagentIndex then
+          return GetTradeSkillReagentItemID(skillIndex, reagentIndex)
+        else
+          return GetTradeSkillItemID(skillIndex)
+        end
+      end,
+      count = function(skillIndex, reagentIndex)
+        if reagentIndex then
+          local _, _, itemCount = GetTradeSkillReagentInfo(skillIndex, reagentIndex)
+          return itemCount
+        else
+          return GetTradeSkillNumMade(skillIndex)
+        end
+      end,
+    },
+    SetAuctionItem = {
+      id = GetAuctionItemLink,
+      count = function(viewType, index)
+        local _, _, count = GetAuctionItemInfo(viewType, index)
+        return count
+      end,
+    },
+    SetAuctionSellItem = { id = GetAuctionSellItemLink },
+    SetTradePlayerItem = {
+      id = GetTradePlayerItemLink,
+      count = function(id)
+        local _, _, count = GetTradePlayerItemInfo(id)
+        return count
+      end,
+    },
+    SetTradeTargetItem = {
+      id = GetTradeTargetItemLink,
+      count = function(id)
+        local _, _, count = GetTradeTargetItemInfo(id)
+        return count
+      end,
+    },
+    SetMerchantItem = {
+      id = GetMerchantItemID,
+      count = function(index)
+        local _, _, _, itemCount = GetMerchantItemInfo(index)
+        return itemCount
+      end
+    },
+    SetCraftItem = {
+      id = function(recipeIndex, reagentIndex)
+        return GetCraftReagentItemID(recipeIndex, reagentIndex)
+      end
+    },
+    SetBuybackItem = {
+      id = C_MerchantFrame.GetBuybackItemID,
+      count = function(slotIndex)
+        local _, _, _, itemCount = GetBuybackItemInfo(slotIndex)
+        return itemCount
+      end
+    }
+  }
+
+  local function makeHook(entry)
+    return function(tooltip, arg1, arg2, arg3)
+      AddVendorPrices(tooltip, entry.id(arg1, arg2, arg3), entry.count and entry.count(arg1, arg2, arg3) or 1)
+    end
+  end
+
+  local function HookTooltip(tooltip)
+    for setter, entry in pairs(TooltipHooks) do
+      pfUI.hooksecurefunc(tooltip, setter, makeHook(entry))
+    end
+  end
+
+  HookTooltip(GameTooltip)
 end)