The native client's /api/events requests omitted the `type`
discriminator entirely. The app's Json is configured with
encodeDefaults=false (AppModule), so a `type` left at its data-class
default ("play_started" etc.) is never written to the wire. The server
multiplexes on `type` and returns 400 "unknown event type" for an
empty one, which PlayEventsReporter's catch swallows — and the
play_started path has no offline fallback, so the play is lost with no
trace.
Net effect: EVERY native Android play event (started/ended/skipped/
offline) has 400'd since this code was written. Listening History only
ever populated from the Flutter/web clients; as usage moved to the
native app, History went sparse. Confirmed live in the server access
log: POST /api/events -> 400 on every play, while reads 200.
Force the discriminator onto the wire with
@EncodeDefault(Mode.ALWAYS) on each request type's `type` field.
Surgical (vs flipping encodeDefaults globally), and idiomatic for a
constant-valued discriminator.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
autoClosePriorOpen hardcoded was_skipped=true for every orphaned
play_event (a play_started whose play_ended never arrived, e.g. the
client backgrounded mid-track). That hid fully-listened tracks from
History — a play that sat open past its own length was capped to the
track duration (ratio ~1) yet still flagged skipped. Observed live:
History showed 3 plays for a day of listening because most rows were
auto-closed orphans marked skipped.
Now the auto-close applies the same skip rule as RecordPlayEnded to the
duration-capped elapsed estimate: ratio >= threshold OR elapsed >= the
duration floor -> a real play that lands in History; a genuine
quick-abandon still classifies as a skip. Still writes no skip_events
row, so the ambiguous auto-close never feeds the skip-ratio /
recommendation signal.
This is the server half. The client-side root cause (backgrounded
track transitions never closed, orphaning the rows in the first place)
is tracked separately.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
bvandeusen