As far as I know an addon/macro cannot detect if a buff is up or not.
It can detect if a buff/spell is cast, and record how long it will last.
And possibly warn you when it will expire soon.

But the addon cannot look at a brand new member of your group/raid, and say he has this buff or needs this buff.
If there's no indication in the combat log, then we'll have to manually notice and cast each action.
That or assume after 4x Arcane Blasts, we have a 91% chance of a missile barrage proc, and just macro it in after "x" casts.