Getting artifact perks data

[Rainrider]

I would like to get info about which artifact perks are currently active. So far I have the following code:

local powers = C_ArtifactUI.GetPowers()
 
for i = 1, #powers do
    local spellID, _, currentRank = C_ArtifactUI.GetPowerInfo(powers[i])
 
    if currentRank > 0 then
        local name = GetSpellInfo(spellID)
        -- do stuff
    end
end

However this only works when the ArtifactUI is open and I can't figure out how to open it programmatically. Would appreciate some help on that.