Adding publish mode and handling to pelita tournament

[Debilski]

Still a draft. Will attempt to merge once the frontend is in a usable (= usable by other people than myself) state.

[Debilski]

Ready for a first review (in conjunction with https://github.com/ASPP/pelita-webtournament ).

tl;dr

docker run -p 3000:3000 debilski/pelita-webtournament

Open in a browser: http://localhost:3000/

Go to: Live tournament → Single game

run pelita --http-post http://localhost:3000/api/collect --stop-at 0

Works over the network but obviously profits from a fast connection. Multiple computers can watch at the same time. Few minor graphic bugs are known to the author. More explanation to follow :)

[Debilski]

Closes #574.

[otizonaizit]

Ouch, I tried to review the changes, but I am a bit overwhelmed... any chance that this could be either split out as the ci_engine, so that is almost does not affect pelita main, or otherwise I think I would need to be hand held in understanding what is happening and some docs will have to be added somewhere...

[Debilski]

Ah, yes, I had already started a longer document with the reasoning behind choosing httpx here (and why I chose it over zmq) but I forgot to finish it.
But then again, in this PR there are basically only two changes. One is adding some metadata object in the tournament that can be serialised to a viewer; the other is just a new viewer class POSTPublisher to have Pelita make POST requests with the current game state to some URL. Not sure if there is actually much to split out here.

[otizonaizit]

So maybe you could add a little comment in the code to explain why httpx? And why it is imported within the class and not at the module level? Also maybe put in the docs of the new class an explanation of its purpose (to publish on th etournament website or whatever)?
I am thinking about us looking back at this in 3 years and wondering what this is all about.

[Debilski]

I’ll postpone the answer (and merge) slightly: I’ve just had another idea come up that I wanted to test first before the write up.