function Panda:ADDON_LOADED(event, addon)
  if addon ~= "BtmScan" then return end
 
  local libName = "Panda DE"
  local lcName = libName:lower()
  local lib = { name = lcName, propername = libName }
  table.insert(BtmScan.evaluators, lcName)
  local define = BtmScan.Settings.SetDefault
  local get = BtmScan.Settings.GetSetting
  local set = BtmScan.Settings.SetSetting
 
  BtmScan.evaluators[lcName] = lib
 
 
  local values = setmetatable({}, {
    __index = function(t, link)
      if not link then return end
 
      local name, _, qual, itemLevel, _, itemType, itemSubType, _, _, texture = GetItemInfo(link)
 
      if not name or not Panda:DEable(link) then
        t[link] = false
        return
      end
 
      local id1, _, _, qty1 = Panda:GetPossibleDisenchants(link)
      local bo1 = Panda:GetAHBuyout(id1)
 
      val = qty1*bo1
      t[link] = val
      return val
    end,
  })
 
 
  function lib:valuate(item, tooltip)
    local price = 0
 
    if not get(lcName..".enable") or item.qual <= 1 then return end
 
    -- Valuate this item
    local market = values[item.id]
    if not market then
      item:info("Unable to get DE value")
      return
    end
    item:info("Disenchant value", market)
 
    -- Adjust for brokerage / deposit costs
    local adjusted = market
    local brokerage = get(lcName..'.adjust.brokerage')
 
    if brokerage then
      local basis = get(lcName..'.adjust.basis')
      local brokerRate, depositRate = 0.05, 0.05
      if (basis == "neutral") then
        brokerRate, depositRate = 0.15, 0.25
      end
      if (brokerage) then
        local amount = (market * brokerRate)
        adjusted = adjusted - amount
        item:info(" - Brokerage", amount)
      end
      item:info(" = Adjusted amount", adjusted)
    end
 
    -- Calculate the real value of this item once our profit is taken out
    local pct = get(lcName..".profit.pct")
    local min = get(lcName..".profit.min")
    local value, mkdown = BtmScan.Markdown(adjusted, pct, min)
    item:info((" - %d%% / %s markdown"):format(pct,BtmScan.GSC(min, true)), mkdown)
 
    -- Check for tooltip evaluation
    if tooltip then
      item.what = self.name
      item.valuation = value
      if item.bid == 0 then return end
    end
 
    -- If the current purchase price is more than our valuation,
    -- another module "wins" this purchase.
    if value < item.purchase then return end
 
    -- Check to see what the most we can pay for this item is.
    if item.canbuy and item.buy < value then price = item.buy
    elseif item.canbid and item.bid < value then price = item.bid end
 
    -- Check our projected profit level
    local profit = price > 0 and (value - price) or 0
 
    -- If what we are willing to pay for this item beats what
    -- other modules are willing to pay, and we can make more
    -- profit, then we "win".
    if price >= item.purchase and profit > item.profit then
      item.purchase = price
      item.reason = self.name
      item.what = self.name
      item.profit = profit
      item.valuation = market
    end
  end
 
  local ahList = {
    {'faction', "Faction AH Fees"},
    {'neutral', "Neutral AH Fees"},
  }
 
  define(lcName..'.enable', true)
  define(lcName..'.profit.min', 4500)
  define(lcName..'.profit.pct', 45)
  define(lcName..'.adjust.brokerage', true)
  define(lcName..'.adjust.basis', "faction")
 
  function lib:setup(gui)
    id = gui:AddTab(libName)
    gui:AddControl(id, "Subhead",          0,    libName.." Settings")
    gui:AddControl(id, "Checkbox",         0, 1, lcName..".enable", "Enable purchasing for "..lcName)
    gui:AddControl(id, "MoneyFramePinned", 0, 1, lcName..".profit.min", 1, 99999999, "Minimum Profit")
    gui:AddControl(id, "WideSlider",       0, 1, lcName..".profit.pct", 1, 100, 0.5, "Minimum Discount: %0.01f%%")
    gui:AddControl(id, "Subhead",          0,    "Fees adjustment")
    gui:AddControl(id, "Selectbox",        0, 1, ahList, lcName..".adjust.basis", "Auction fees basis")
    gui:AddControl(id, "Checkbox",         0, 1, lcName..".adjust.brokerage", "Subtract auction fees from projected profit")
  end
 
  self:UnregisterEvent("ADDON_LOADED")
  self.ADDON_LOADED = nil
end