Poll Wallpaper and Apply if Changed...

I've either got an idea here, or I suck at searching.
I'm wondering if Tasker has the ability to query the active wallpaper and it's not xyz.app.domain then set it to xyz.app.domain. I want to have it iterate a different wallpaper based on days of the week or even month. My pseudo code is a little wonky but does my question make sense and can it be done? I'm leaving out a lot of code. I just really want to know if Tasker can get the Active Wallpaper and do some logic then set it to a new wallpaper.
Here's pseudocode:
CheckLiveWallpaper()
if (wallpaper.current != to xyz.app.domain)
{
wallpaper.set(listWallpaper.Index += 1)
DoSomeWorkHere
}
So can it be done? Is there an example? Where should I start looking for ideas OR OR OR is there already an app that does this?

 

Thank you!!! I guess I'll have to build something myself.