Instead of using a mega-switch, instead use a dispatch system for the
sockets protocol.
A big advantage is that we don't need to be weird about variable
declarations using this method. We can use `const`s!
* Lint arrow-body-style
* Lint prefer-object-spread
Object spread is faster _and_ more readable.
This also fixes a few unnecessary object clones.
* Enable no-parameter-properties
This isn't currently used, but this makes clear that it shouldn't be.
* Refactor more Promises to async/await
* Remove unnecessary code from getDataMoveHTML etc
* Lint prefer-string-starts-ends-with
* Stop using no-undef
According to the typescript-eslint FAQ, this is redundant with
TypeScript, and they're not wrong. This will save us from needing to
specify globals in two different places which will be nice.
We're skipping two major typescript-eslint versions, so there are a
bunch of changes here, including:
- it's catching a lot of things it didn't catch in the past, for
reasons unclear to me
- no-unused-vars has to be explicitly disabled in global-types now
- a lot of `ts-ignore`s were never necessary and have been fixed
- Crashlogger can now handle being thrown things that aren't errors.
This has never been a problem in the past, but to satisfy TypeScript
we might as well not die in a fire on the off chance someone tries to
`throw null` or something.
Regular ReadStreams still can't; I now believe they shouldn't have a
"default" read method, and you should explicitly choose whether you
want to read "by chunks as they become available", "by chunks of a
specific line" or "by a delimiter".
So you would specifically use `stream.byLine()` or
`stream.byChunk([size])`, which would return an
`ObjectReadStream<string>`.
Inspired by #7195
I couldn't completely remove the global room in one commit, but this
solves basically every problem with it by making it no longer a `Room`.
In particular, this means:
- It's no longer of type `Room`
- It's no longer in the `Rooms.rooms` table
- Its class name is now `GlobalRoomState` rather than `GlobalRoom`
- It no longer tracks its own user list (online user count is now
provided by `Users.onlineCount`)
- It's no longer a socket channel (there's new syntax for "send this
message to every user")
