pfUI:RegisterModule("sellvalue", function ()
  local function AddVendorPrices(frame, id, count)
    if not id then return end
    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
      frame:AddLine(" ")

      if sell > 0 then
        if count > 1 then
          frame:AddDoubleLine(T["Sell"] .. ":", CreateGoldString(sell) .. "|cff555555  //  " .. CreateGoldString(sell*count), 1, 1, 1)
        else
          frame:AddDoubleLine(T["Sell"] .. ":", CreateGoldString(sell), 1, 1, 1)
        end
      end

      if buy then
        if count > 1 then
          frame:AddDoubleLine(T["Buy"] .. ":", CreateGoldString(buy) .. "|cff555555  //  " .. CreateGoldString(buy*count), 1, 1, 1)
        else
          frame:AddDoubleLine(T["Buy"] .. ":", CreateGoldString(buy), 1, 1, 1)
        end
      end
    elseif not MerchantFrame:IsShown() and sell > 0 then
        SetTooltipMoney(frame, sell * count)
    end
    frame:Show()
  end

  hooksecurefunc("SetItemRef", function()
    if IsModifierKeyDown() then return end
    if ItemRefTooltip:HasItem() then
      local _, _, id = ItemRefTooltip:GetItem()
      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
      hooksecurefunc(tooltip, setter, makeHook(entry))
    end
  end

  HookTooltip(GameTooltip)
end)