[p3lim]

As the first return of GetTotemInfo is wether a totem exists or not, you don't have to check names.

The cleanest and most efficent way to do this is so:

if(select(2, UnitClass('player')) ~= 'SHAMAN') then return end
 
local addon = CreateFrame('Frame')
addon:RegisterEvent('PLAYER_REGEN_ENABLED')
addon:RegisterEvent('PLAYER_TOTEM_UPDATE')
addon:SetScript('OnEvent', function(self)
    local hasTotem
 
    for index = 1, 4 do
        if(GetTotemInfo(index)) then
            hasTotem = true
            break
        end
    end
 
    if(hasTotem) then
        self:Show()
    else
        self:Hide()
    end
end)

You can check for each totem if you'd like, through the 1st argument in PLAYER_TOTEM_UPDATE.

I made a simple totem tracking addon for my shaman about a year ago, take a look if you want:
https://github.com/p3lim/Devak/blob/master/Devak.lua