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vector-im-hydrogen-web/doc/impl-thoughts/RECONNECTING.md

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Reconnecting

HomeServerApi notifies Reconnecter of network call failure

Reconnecter listens for online/offline event

Reconnecter polls /versions with a RetryDelay (implemented as ExponentialRetryDelay, also used by SendScheduler if no retry_after_ms is given)

Reconnecter emits an event when sync and message sending should retry

Sync listen to Reconnecter Sync notifies when the catchup sync has happened

Reconnecter has state: - disconnected (and retrying at x seconds from timestamp) - reconnecting (call /versions, and if successful /sync) - connected

Reconnecter has a method to try to connect now

SessionStatus can be: - disconnected (and retrying at x seconds from timestamp) - reconnecting - connected (and syncing)

- doing catchup sync
- sending x / y messages

rooms should report how many messages they have queued up, and each time they sent one?

SendReporter (passed from Session to Room, passed down to SendQueue), with:

  • setPendingEventCount(roomId, count)

Session listens to Reconnecter to update it's status, but perhaps we wait to send messages until catchup sync is done