In some instances the retry mechanism would get into a busy loop.
That's due to the fact that we would fetch some non-retriable
notifications but not act on them.
This commit fixes the issue by filtering them from the database query
and making sure that we at least wait 1 second.
In some instances the communities migration would be skipped but not
marked as `dirty`.
This commit addresses the issue by:
- Making sure that if dirty is set the migration is not skipped but
replayed
- If the version is on the communities migration and dirty is false, we
check for the presence of the communities table. If not present we
replay the communities migration.
- Make community_id field in user_messages nullable
It also removes all the `down` migration, as we can't use them
effectively, as explained in the README.md added.
We were checking for the wrong error kind when pulling messages from the
database, which resulted in the code not retrying to pull the message,
giving flaky tests / race condition (that's present in production as
well)
Currently messenger has no notion of being online.
This might cause a problem as we retry to register with a push
notification server even if not connected to any peer, which will
inevitably fail.
This commit adds a method `handleConnectionChange` that will be called
every time the connection change state.
