fix: refactor initialization sequence to guarantee readiness before event upload #765
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Beforehand
init
andisStorageReady
would operate asynchronously completely on their own, the second one marking the client as ready for processing events. This was however brittle, as context updates from plugins (IDFA, AdvertisingID) could make the client think it was ready before it would actually load all the relevant information (context, events from previous sessions, settings).This refactors the sequence of initialization so that: storage is always restored first, then settings, context and callbacks are setup (in any order between them), then the client is marked ready.
isReady
replacesonContextLoaded
for readiness checks.isReady
is a better guarantee as it makes sure it has a full context loaded (either from restoration or from fetching), whereas before it would only check for context from the device get.