Count user's message reactions about cj

[Crayder]

Counting :rep: and :thumbsdown:/:thumbsup: should be great!

[Southclaws]

I had some thoughts about an efficient way to do this with minimal polling and caching. Since there's no "react" gateway event as far as I know this is going to have to be manual and it's going to have some threshold of how long after a message has been created it stops being counted for reactions. From looking at general conversation, it seems about a 10 second window for messages should be fine, and we don't need to be super accurate with this sort of stuff - records can be fuzzy as I doubt users are keeping tally!

Now, on to how it could work:

Each message that comes in can have its message ID stored in a growing queue, every X seconds, all the items in this queue can have their reactions counted but only half of the items at the front of the queue are popped off (the oldest items).

This way, we have an overlapping, moving window across the dataset that ensures each message is checked twice during the window (this method has a name, I forgot it!)

I'll do a mock up of this once I've finished working on #18

(I've also removed the 'easy' tag from this as I realise it's going to need a bit more thought)

[Alasnkz]

I was thinking about a fun and simple little reputation system that could be used with the :rep: emote we have.

[Southclaws]

That would be cool, I guess I completely forgot about this feature!

[NotUnlikeTheWaves]

Closed! This can be accessed via /rep [optional: emoji]. Defaults to the emoji set in the config