MageButtons (Classic) 

 MageButtonsDB = MageButtonsDB or {}

local function make_spell_table(spell_id_list)
  local tbl = {}
  --print(spell_id_list)

  for i = 1, #spell_id_list, 1 do
    if IsSpellKnown(spell_id_list[i]) then
      local name = GetSpellInfo(spell_id_list[i])
      local subtext = GetSpellSubtext(spell_id_list[i]) or ''  -- NOTE will return nil at first unless its locally cached
      name = name .. "(" .. subtext .. ")"  -- For some reason the "()" are required for tooltips
      table.insert(tbl, name)
    end
  end

  return tbl
end

local function preload_spell_data(spell_id_list)
    for k = 1, #spell_id_list, 1 do
        C_Spell.RequestLoadSpellData(spell_id_list[k])
    end
end

local function onevent(self, event, addonName, ...)
    if (addonName ~= "MageButtons" or  event ~= "ADDON_LOADED") then
        return
    end
	--print(event)
		
	-- Set up lists of spells
    -- Bottom <--> Top
	WaterSpells = {5504, 5505, 5506, 6127, 10138, 10139, 10140, 37420, 43987, 27090}
	FoodSpells  = {587, 597, 990, 6129, 10144, 10145, 28612, 33717}
	TeleportSpells = {}
	PortalSpells  = {}

	if UnitFactionGroup("player") == "Alliance" then
              -- Darnassus (3565), Exodar (32271), Theramore (49359), Ironforge (3562), Stormwind (3561), Shattrath (33690)
		TeleportSpells = {3565, 32271, 49359, 3562, 3561, 33690} -- {3565, 3561, 3562, 32271, 49359, 33690}
              -- Darnassus (11419), Exodar (32266) Theramore (49360) Ironforge (11416) Stormwind (10059), Shattrath (33691)
		PortalSpells   = {11419, 32266, 49360, 11416, 10059, 33691} -- {11419, 10059, 11416, 32266, 49360, 33691}
	else
              -- Silvermoon (32272), Undercity (3563), Thunder Bluff (3566), Stonard (49358), Orgrimmar (3567), Shattrath (35715)
		TeleportSpells = {32272, 3563, 3566, 49358, 3567, 35715} -- {3566, 3563, 3567, 32272, 49358, 35715}
              -- Silvermoon (32267), Undercity (11418), Thunder Bluff (11420), Stonard (49361), Orgrimmar (11417), Shattrath (35717)
		PortalSpells   = {32267, 11418, 11420, 49361, 11417, 35717} -- {11420, 11418, 11417, 32267, 49361, 35717}
	end
	GemSpells = {759, 3552, 10053, 10054, 27101}
    -- pig, turtle, ???
    PolymorphSpells = {28272, 28271, 28270}  -- REM: insert basic sheep a little later
			
    -- Immediately load spell data (for rank info) so it'll be available a little later to create the addon buttons
    preload_spell_data(WaterSpells)
    preload_spell_data(FoodSpells)
    preload_spell_data(TeleportSpells)
    preload_spell_data(PortalSpells)
    preload_spell_data(GemSpells)
    preload_spell_data(PolymorphSpells)
    preload_spell_data({12826, 12825, 12824, 118}) -- Basic sheep spell ranks

	-- Needs a slight delay on initial startup to allow for spell data to load
	C_Timer.After(6, function()

		-- Choose the highest rank of sheep polymorph
        local sheep = 9999 -- A spell you will never know

		if     IsSpellKnown(12826) then sheep = 12826   -- rank 4
		elseif IsSpellKnown(12825) then sheep = 12825   -- rank 3
		elseif IsSpellKnown(12824) then sheep = 12824   -- rank 2
		elseif IsSpellKnown(118)   then sheep = 118     -- rank 1
           end
		table.insert(PolymorphSpells, 1, sheep)

        -- Create the various spell tables using helper function
        WaterTable     = make_spell_table(WaterSpells)
        FoodTable      = make_spell_table(FoodSpells)
        TeleportsTable = make_spell_table(TeleportSpells)
        PortalsTable   = make_spell_table(PortalSpells)
        GemsTable      = make_spell_table(GemSpells)
        PolymorphTable = make_spell_table(PolymorphSpells)
			
		-- Get saved frame location
		local relPoint, anchorX, anchorY = addon:getAnchorPosition()
		MageButtonsConfig:ClearAllPoints()
		MageButtonsConfig:SetPoint(relPoint, UIParent, relPoint, anchorX, anchorY)
		
		
		addon:makeBaseButtons()

		-----------------
		-- Data Broker --
		-----------------
		lockStatus = addon:getSV("framelock", "lock")
		
		db = LibStub("AceDB-3.0"):New("MageButtonsDB", SettingsDefaults)
		MageButtonsDB.db = db;
		MageButtonsMinimapData = ldb:NewDataObject("MageButtons",{
			type = "data source",
			text = "MageButtons",
			icon = "Interface/Icons/Spell_Holy_MagicalSentry.blp",
			OnClick = function(self, button)
				if button == "RightButton" then
					if IsShiftKeyDown() then
						MageButtons:maptoggle("0")
						print("MageButtons: Hiding icon, re-enable with: /MageButtons minimap 1")
					else
						InterfaceOptionsFrame_OpenToCategory(mbPanel)
						InterfaceOptionsFrame_OpenToCategory(mbPanel)
						InterfaceOptionsFrame_OpenToCategory(mbPanel)
					end
				
				elseif button == "LeftButton" then
					if lockStatus == 0 then
						-- Not locked, lock it and save the anchor position
						addon:lockAnchor()
					else
						-- locked, unlock
						addon:unlockAnchor()
					end
				end
			end,
			
			-- Minimap Icon tooltip
			OnTooltipShow = function(tooltip)
				tooltip:AddLine("|cffffffffMageButtons|r\nLeft-click to lock/unlock.\nRight-click to configure.\nShift+Right-click to hide minimap button.")
			end,
		})
		
		-- display the minimap icon?
		local mmap = addon:getSV("minimap", "icon") or 1
		if mmap == 1 then
			MageButtonsMinimapIcon:Register("mageButtonsIcon", MageButtonsMinimapData, MageButtonsDB)
			addon:maptoggle(1)
		else
			addon:maptoggle(0)
		end
	end); --end of slight delay
end