In BBB 3.0, a change was made to collect full WebRTC stats continuously.
This method gathers stats from *all* peers and *all* senders and receivers
every 2 seconds. Originally, it was intended to run only when the user opened
the connection status dialog, providing in-depth info in the UI and making it
available for copying.
This new behavior is not ideal. Running full stats collection every 2 seconds
in meetings with 20+ peers/transceivers wastes client resources since the
collected data is unused 99% of the time.
This commit reverts to the pre-3.0 behavior (≤2.7), where full stats collection
(`startNetworkMonitoring`) runs only when the connection status modal is open.
As a bonus, it fixes the packet loss status transition log to use the packet
loss percentage, which is the actual trigger metric.
In 3.0, the packet loss metric used to trigger connection status alerts was
changed to the one generated by the `startMonitoringNetwork` method used by the
connection status modal. Since packet loss thresholds were not adjusted (0.5,
0.1, 0.2), a single lost packet causes the status alert to be permanently
stuck on "critical". This is explained by how different those metrics
are:
- **Before (2.7):** A 5-probe wide calculation of inbound packet loss
fraction based on `packetsLost` and `packetsReceived` metrics.
- **Now (3.0):** An absolute counter of inbound lost packets.
This commit restores the previous packet loss metric used to trigger
connection status alerts, reverting to the original collection method via
`/utils/stats.js`. This resolves the issue, but further work is needed in
subsequent PRs:
- Unify the collection done in `/utils/stats.js` with the
`startMonitoringNetwork` method.
- Incorporate the remote-inbound `fractionsLost` metric to account for packet
loss on both legs of the network (in/out).
- Update the packet loss metric displayed in the connection status modal to
show a more meaningful value (e.g., packet loss percentage over a specific
probe interval). An absolute counter of lost packets isn't useful for end
users.
- Update the alert log to use the fraction or percentage above
