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bec7453a1f
* Ref count the stats worker.
NOTE: Don't liek this much, but wanted to open this get some 👀 on
this and get feedback.
There are two entities, one for counting signal bytes and another for
media stats. They both send `ParticipantJoined` and `ParticipantLeft`
event.
In the case of a participant resume, as the old web socket
connection is closed, that triggers a signal stats counter close. That
would call `ParticipantLeft` and that would close the stats worker.
The closed stats worker got reaped in `FlushStats` after three minutes.
So, all events after that did not have a worker and hence went
unreported including missing participant_left webhook because it relied
on checking if a participant was ever connected and that needed to check
the worker state.
Using a ref count to keep track of join/leaves. And not close the worker
until ref count goes down to 0.
* create a stats worker on resume
* revert incorrect changes
* transfer connected state
* transfer connected state when creating worker
* resolve participant on a resume