The Dart half of the credential sync: a `KuchniaCredentialService` that owns
the value locally, a `sync_merge_kuchnia.dart` adapter mirroring the Python
one, and a `_syncKuchniaCredential` tick alongside the banks and budget. The
phone can now receive the panel password, which is the prerequisite for it
fetching anything itself.
One source of truth, per the answered question: the value lives in the synced
document store and nowhere else. Deliberately *not* mirrored into
`flutter_secure_storage` -- two homes for one value is how a stale password
survives a change made on the other device, and the credential has to be
readable synchronously at merge time anyway.
Gated by a second shared fixture, `tests/fixtures/kuchnia_credential.json`,
asserted by both suites. Two cases carry the weight:
- an **unparsable** edit time must fall back to the same clock on both sides
(Python catches `ValueError` from `fromisoformat`, Dart's `tryParse` returns
null). Verified they agree on `wall_time_ms == 0`; mutating that expectation
fails both suites.
- a **blank half** contributes nothing, so a half-filled settings form cannot
push an empty-string password that wins LWW against a real one.
`KuchniaCredentialService.init()` is called in the WorkManager isolate as well
as `main()`. A fresh isolate has its own static state and `_syncKuchniaCredential`
no-ops when the singleton is missing, so without it a background tick would
neither publish this device's credential nor receive a peer's -- and on the
phone the background tick is most of the syncing there is. Same class of trap
as the `initSyncDeviceId()` one already documented there.
`.toDouble()` came off the bank record: the fields are already `double`, so it
was a no-op the analyzer flags. The field *types* are what keep the encoding
byte-identical to Python's, and `kuchnia_parity_test.dart` asserts that.
654 Dart tests, 1040 Python tests, 100% Python branch coverage.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QQpCiPaSbyRpwsLkH3dgsX
The phone is getting its own Kuchnia Wikinga importer so the feature works
with the PC switched off. That turns a risk `_kuchnia_spread.py` called
"theoretical" into a live one: two implementations must now agree exactly on
which dishes are dropped, which slot each lands on, and the JSON a banked
record encodes to. Disagreement means each device re-adds what the other
dropped, and since `add_manual_entry` restamps `t` unconditionally, the whole
curated bank republishes to every peer on every refresh. A slot mismatch is
worse -- a checkpoint one device offers and the other does not can never be
satisfied.
So the port lands with its gate rather than after it. One shared fixture,
`tests/fixtures/kuchnia_day.json`, is asserted by both `pytest` and
`flutter test`: same input, same expected dishes, drops, slots, bank keys and
records. Two suites written independently from the same prose is not a gate.
The fixture is five real dishes (a scrubbed 2026-08-22 capture) plus synthetic
meals that each pin one drop or fallback path -- a per-100 g mix-up, an absurd
portion, a stringly-typed number, a non-dict entry, a missing `nutrition`, a
missing `mealPriority`, and a twin-dish pair. Without those, "the same meals
are dropped" is a vacuous assertion against an all-happy-path capture. Both
halves were mutation-checked: flipping an expected slot, drop count or record
value fails each suite, and flipping `435.0` to `435` fails the byte-identity
test while the value comparison still passes, which is why both exist.
Three traps the port had to survive, each caught before it shipped:
- `_ENERGY_TOLERANCE` is **0.35**. The prose said "~1%", which describes how
closely the captured day agreed, not the threshold; porting 0.01 would drop
dishes the PC keeps. That paragraph now says so.
- `jsonEncode(435)` emits `435` where Python emits `435.0`, so every Dart
macro is forced to `double` and a canonical-encoding test pins it.
- Dart's `List.sort` is unstable where Python's `sorted` is stable, so the
Dart comparator carries the payload index as a final tiebreak.
The real dishes live in their own file rather than as a literal in the
generator: transcribing them by hand corrupted three of the five, and the
error was invisible until the generated fixture was diffed against the
capture.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QQpCiPaSbyRpwsLkH3dgsX
