Honestly, it sounds like you are getting very stressed and catastrophising over this, much more than you need to.
Going to a wedding with children is a new experience, but the newborn stage is the easiest stage to do it for several years.
Floaty bf friendly dress
Sling
A chair
And that's probably all you need.
I had sections with mine, and I'd have been fine to go to a wedding within a week. I appreciate everyone is different, but sections don't necessarily mean a harder recovery, and especially if they are planned ones, they are often pretty good. If the wedding is a month after your due date, you'd be likely 2-6 weeks out from birth.
I didn't leak for the first 9m (did occasionally after) but that's what breast pads are for.
And you may still be bleeding (I only did for a week, and that was pretty light) but again, that's what pads are for, and you presumably wouldn't worry about attending an event on your period...
You don't have to get up and dance, you do that to stay long of you dont want, and if you don't feel upto it, then you can go.
The likelihood is that your baby will be happy in a sling in your front (or partners) for most of the day.
I took my children to parties at that age, to a music festival, all sorts. They are pretty portable 😄