Is there a drink out there that is made identically to coffee except with cocoa beans?
I would be interested in finding either a drink with the exact roasting process or a drink brewed with ground cocoa beans. I've heard of something called "choffee" - how does that fit in?
You certainly could brew a drink from pure cocoa powder. It'll be pretty bitter, though; if you don't like unsweetened chocolate you might not like it much, though. So you'll most likely end up adding dairy and sugar, and ending up with hot cocoa.
It won't ever be exactly the same process though. In both cases there's a lot of processing of the beans, and the details differ. But most importantly, while with coffee you can buy and use whole beans, you wouldn't do that with cacao. Cacao beans contain a large amount of fat, so if you want cocoa powder, part of the processing is separating out cocoa solids (which can become cocoa powder) and cocoa butter. If you don't separate them, you end up with a thick paste called chocolate liquor. So you're never going to see whole roasted cacao beans.
But if you're willing to set aside all those differences, I suppose hot cocoa is analogous to coffee, if that means anything.
Koko Samoa is a chocolate drink popular in the Pacific. It seems to involve just simmering ground cocoa beans in water and later adding sugar. Most of the online information is people trying to sell it to you - in Samoa people just buy it at roadside stands or make it for themselves. I did manage to find one article that might be interesting for you.
If I had known before visiting Samoa that this existed, I would have been sure to try some, and then I could report to you what it is like.
