I remember another bot having a program/gui that had lines and showed you what it would do, but you still had full control over the game. I liked this because it may have seen something I didn't, and gave me a second opinion.
It is possible, and has been suggested many times. But things move very slow around here, I can't even tell if things move anymore. Tony, in reply to a post made a week ago, said that "Beta section will be more active in the near future by Hb devs". Hopefully HearthBuddy will get some love when that time comes.