* chore(plugin-server): Consume from buffer topic
* Refactor `posthog` extension for buffering
* Properly form `bufferEvent` and don't throw error
* Add E2E test
* Test buffer more end-to-end and properly
* Put buffer-enabled test in a separate file
* Update each-batch.test.ts
* Test that the event goes through the buffer topic
* Fix formatting
* Refactor out `spyOnKafka()`
* Ensure reliability batching-wise
* Send heartbeats every so often
* Make test less flaky
* Commit offsets if necessary before sleep too
* Update tests
* Use seek-based mechanism (with KafkaJS 2.0.2)
* Add comment to clarify seeking
* Update each-batch.test.ts
* Make minor improvements
* Remove onAction
* Avoid fetching actions that dont deal with REST - 99% reduction
* Plural hooks
* Avoid hook fetching where not needed
* Remove dead code
* Update lazy VM test
* Rename a function
* Update README
* Explicit reload actions in tests
* Only reload actions which are relevant for plugin server
* Remove excessive logging
* Reload actions when hooks are updated
* update action matching tests
* Remove commented code
* Solve naming issues
* WIP: Move person creation earlier
* WIP: move person updating, handle person property changing
* WIP: leverage person information
* Update `updatePersonDeprecated` signature
* Avoid (and test avoiding) unneeded lookups whether 'creating' person is needed
Note there were two tricky interactions within handleIdentify, which
again got solved by indirect message passing.
* Solve TODO
* Normalize event before updatePersonIfTouchedByPlugins
* Avoid another lookup for person in updatePersonProperties
* Avoid lookup for newPerson in handleIdentifyOrAlias
* Add kludge comments
* Fix runBufferEventPipeline
* Rename upsertPersonsStep => processPersonsStep
* Update emitToBufferStep tests
* Update some event pipeline step tests
* Update prepareEventStep tests
* Test processPersonStep
* Add tests for updatePersonIfTouchedByPlugins step
* Update runner tests
* verify person vesrion in event-pipeline-integration test
* Update process-event test suite
* Argument ordering for person state tests
* Update runner test snapshots
* Cast to UTC
* Fixup person-state tests
* Dont refetch persons needlessly on $identify
* Add missing version assertion
* Cast everything to UTC
* Remove version assertion
* Undo radical change to event pipeline - will re-add it later!
* Resolve comments
* Return person in PreIngestionEvent if possible
* Avoid unneccessarily fetching person in emitToBufferStep
* Avoid unneccessarily fetching person in createEvent
* Use unified type instead of separate type for cached data
* Pass person info forward explicitly in each event-pipeline step
* minor typing improvement
* Remove person from type
* Remove unneeded `undefined`
* Add person check for prepareEventStep test
* Fix hook test
* Update getPersonData tests
* Cast created_at to UTC
* Cast created_at to utc on fetch
* Remove personUuid var - unneeded
* Add unit tests for process-event.ts#createEvent
* refactor: Start with PersonStateManager
* refactor: move createPerson to new service
* refactor: move team fetching before aliasing
* refactor: move `createPersonIfDistinctIdIsNew`
* refactor: move `updatePersonProperties`
* refactor: move `handleIdentifyOrAlias`
* refactor: `createPerson` to private
* Fix an import
* Remove weird mocking in an e2e integration test
* Use correct style for querying postgres
* Add test showing problems with deletePerson logic
* Fix deleting persons from clickhouse
* Fix concurrent tests
* Version + 100
* Fixup FINAL
* Remove console.log
* Handle string properties in plugin-server convertToIngestionEvent
* Update typing
* fix: Add multi-server process event test
This got accidentally yeeted from my previous PR. Shame!
* Improve tests
* Update test to reflect reality
* refactor: Eliminate the `KAFKA_ENABLED` setting
* Remove dead code
* Consolidate plugin server test scripts and CI
* Fix CI command
* Remove Celery queues
* Rearrange test directories
* Update import paths
