Wonka's hard to get a handle on and is a weird man. I suspect neither as happy bouncy as Gene Wilder nor as dark seductive fucked up as Johnny Depp, but i barely remember the old movie and am not seeing the new movie.
For all that he’s a focal point of both movies (and he is the Prime Mover of the book) he’s really not in the book all that much. He dances around and leads them through the factory and is magnificently blase about everything, but i’m not sure i’d be able to flesh him out into a full movie character.
All this magical stuff goes on in his factory, with no real explanation, and whenever anyone presses him for an explanation or points out a contradiction/inconsistency/etc. with an explanation he’s given, he just does something like feign deafness. This is even worse in the sequel, Charlie and the Great Glass Elevator. I wish i knew what Dahl was trying to get at because it’s so obvious and over-the-top and self-aware that it can’t just be bad writing. (Though the over-top incompetency of the U.S government in Great Glass Elevator does bug me as an authorial choice. I’m probably just sensitized, but i don’t find it amusing.)