Adds prev/next-day paging to the intraday pulse "shape of the day" chart
(TileHeader right slot, next disabled at today) so a user can step back
through prior days on the existing date-scoped route.
Raises DENSE_INTRADAY_RETENTION_DAYS from 14 to 90 — a self-hoster's own
storage is the trade-off for three months of full 10-minute-resolution
history instead of two weeks. Days outside the window keep folding to
hourly-mean stats: rows as before; loadIntradayPulse now falls back to
that hourly tier when a day's raw samples are gone, so the navigator
shows a coarser shape instead of an empty chart. The tension-window
read is suppressed on hourly days — it needs per-sample resolution to
stay honest. A new resolution field on the DTO ("tenMin" | "hourly")
drives a small note in the chart.
Long-term retention for the dense intra-day tier (PULSE, HRV, SpO2) folds
to per-local-hour means instead of a single daily mean: the last 14 days
keep every raw sample, older days keep up to 24 points per metric — the
day's shape survives permanently at ~9k rows/metric/year. Hourly rows key
as stats:<HK>:<YYYY-MM-DD>T<HH> anchored at local HH:30, adopt-in-place
against both unique indexes with the P2002 retry outside the transaction.
The pre-fold DAY-rollup recompute extends to HRV (mean fidelity, not only
min/max) and the post-fold recompute is gone for the whole tier. Derived
resting rows for proxy users still mint from the day's raw samples.
A one-shot rebuild reconstructs the hourly shape for every already-folded
day from the soft-deleted raw samples and retires the daily row in the
same transaction — at no instant are both grains live, so no
AVG-over-live-rows reader can double-count. Boot discovery pairs live
daily-grain rows with surviving tombstones (parameter-bound SQL, pinned
against real Postgres) and converges to zero once converted; days whose
tombstones were pruned keep their daily mean. PULSE/SpO2 DAY buckets keep
the true pre-fold stats; HRV DAY buckets recompute from the hourly rows
(strictly better than the collapsed fold-time bucket); WEEK/MONTH/YEAR
respans enqueue whole-bucket recomputes.
One-shot prettier pass so the new format:check gate starts from a clean
baseline. Formatting only — no behaviour change. Generator-owned and
vendored artifacts stay untouched via .prettierignore.
Resolve the canonical daily row deterministically: prefer the row already
carrying the target stats: externalId before falling back to the row on the
canonical local-noon instant, with a stable orderBy tiebreaker. Adopting a
sibling and stamping the target externalId onto it could otherwise collide on
the (userId, type, source, externalId) index with the real canonical row.
Re-anchor the adopted row to local-noon only when that slot is free, so an
externalId row at a tz/DST-shifted instant cannot collide on the measured_at
composite during adopt.
Guard the create against a concurrent insert on the same canonical composite:
catch P2002 outside the transaction (a caught error inside leaves the tx in
the aborted state) and retry the fold once, which then resolves and adopts the
winning row instead of creating a duplicate.
Add a real-Postgres case covering a row already on the canonical instant under
the target stats: externalId plus a fresh out-of-window batch: the fold adopts
in place, no P2002, one canonical row with the correctly folded mean.
The dense intra-day retention fold minted its daily-mean stats: row with
an externalId-keyed upsert. On real data a row already occupies the
canonical local-noon instant — a sibling daily stats: row or a per-sample
HRV/PULSE reading that fell on noon — so the upsert lookup missed (the
existing row carries a different externalId) and the INSERT then violated
the (user_id, type, measured_at, source, sleep_stage) unique index with
P2002. The mocked unit tests could not surface it.
Resolve the canonical row by the measured_at composite the collision is on
(sleep_stage IS NULL for these continuous types, matched via the
NULLS NOT DISTINCT index) and adopt it in place — refresh the mean, stamp
the canonical stats: externalId, un-tombstone — or create it when absent.
Exclude the adopted row id from the per-sample soft-delete so a noon-instant
sample becomes the daily row instead of being tombstoned.
Add a testcontainer integration test that seeds the colliding shape (a
pre-existing canonical-instant row plus out-of-window per-sample rows) and
pins no-P2002, coexistence, the noon-sample case, idempotency, and the
retention bound. Update the unit coverage for the adopt-in-place path.
Marc-André Bombeck