async_send_command handed write_fn/validate_fn the raw cache snapshot
(real, on-the-wire hrefs), not a subdevice-scoped view. Every other
consumer of a full resources dict (exists_fn, rep_fn, is_legacy_board,
...) reads through coordinator.canonical_resources() specifically to
avoid this; write_fn/validate_fn didn't, so on a composite AC (issue
#177) _temperature_step's resources.get(HREF_TEMP_CONTROL) saw the
master's /temperature/control/vs/0 instead of the subdevice's own
/temperature/control/vs/1, silently rounding a subdevice's 0.5-degree
write to a whole degree. The remote-control gate stays on the raw
snapshot -- /remotectrl/* is a shared, MAIN-only resource a
subdevice's owned-hrefs-only canonical view would drop entirely.
climate.py's target_temperature_step duplicated this same
read-in-order logic; pointed it at airconditioner._temperature_step
so the read and write paths can't drift again.
Also, from the same review:
- _quantize_temperature rejects non-finite floats (nan/inf survive
float() but raise out of round()/division, escaping write_fn's
documented None-on-bad-payload contract).
- Deduplicated the quantize-and-check block shared by the
temperature_ocf/temperature branches of _climate_write.
- Added the /temperatures/vs/0 items[]-fallback test that was
previously unreachable (every increment-carrying fixture also has
/temperature/control/vs/0, which _temperature_step checks first).
- Added a coordinator-level test seeding an indexed subdevice with its
own step, distinct from the master's, covering the fix above.
- The Towels/Bedding regression test now checks all 7 locale catalogs,
not just English -- the bug is a code-mapping error, and
test_every_language_mirrors_the_english_catalog only checks key
topology, not values.
Continues narrowing SamsungEntityDescription accesses to the correct
subclass and asserting Optional write_fn/match_fn/exists_fn fields are
set before calling them, per the pattern established in the previous
commit.
Adds [tool.ruff] and [tool.ty] config to pyproject.toml with a curated
ruff rule set (E, F, W, I, UP, B, C4, SIM, RUF, ASYNC, LOG, G, PIE, RET,
PERF, N), pins ruff/ty in requirements-dev.txt, reformats the whole tree
with `ruff format`, and fixes the pre-existing lint and type-check debt
those tools surfaced so both run clean.
Production-code type fixes include: HA's ConfigFlowResult vs. the
generic FlowResult in config_flow.py, narrowing BoundEntity.desc to its
platform-specific subclass (SelectDesc/NumberDesc/SensorDesc/etc.) via
cast() instead of an unchecked annotation, converting HA device_class
strings to their proper enum types, a resolve_registry callback typed
as `object` instead of `DeviceRegistry | None`, and a couple of other
narrow correctness fixes (CA key type validation, an index-out-of-bounds
false positive from an empty-tuple fallback, a bool/dict argument swap).
Test-file fixes are mechanical: narrowing SamsungEntityDescription to
the correct subclass via isinstance()/cast() before accessing
subclass-only fields, and asserting Optional write_fn/unit_fn fields
are set before calling them.
"Unit"/"sub-unit" from #199's multi-indoor-device support wasn't OCF
idiomatic -- OCF calls each component of a composite device a
"subdevice" (see subdeviceIdList), so rename SubUnit -> Subdevice
throughout: the registry module, coordinator state, BoundEntity's
subdevice field, diagnostics keys (subdevices/subdevices_skipped/
subdevice_probes), entity unique_id prefixes (unit1_/sub_<uuid>_ ->
subdevice1_/subdevice_<uuid>_), device-name fallback labels, golden
fixtures, tests, README, and the adding-device-support skill.
Breaking change to entity unique_ids and diagnostics keys, acceptable
since this hasn't been released yet.
Samsung 2-in-1 air conditioners put more than one logical indoor unit
behind a single IP and a single DTLS session. Only the unit the config
entry was set up against was ever discovered; the second one -- a whole
physical appliance the user can see in SmartThings -- had no entities at
all. Two reporters turned out to have two different mechanisms:
ARTIK051_DONGLE_FAC_18K -- indexed siblings. /oic/res registers the
whole tree discoverable and lists three complete parallel resource
sets whose trailing path segment is the index (/mode/vs/0, /mode/vs/1,
...), on OCF-standard and vendor hrefs alike. /device/0's batch
carries only the index-0 hrefs, so a sibling is reachable only through
its own /device/<n> collection.
TP2X_FAC_BORA_21K -- UUID-prefixed tree. /oic/res hides the appliance
tree entirely (which is why a direct /device/1 probe returns nothing
on this board). /subdevices/vs/0 carries subdeviceIdList instead, and
that UUID appears as a literal href prefix; /<uuid>/information/vs/0
was confirmed live to return the wall unit's own model and serial
(TP2X_FAC_BORA_RAC_21K) against the master's TP2X_FAC_BORA_21K.
The detection signals don't overlap on either board, so no
disambiguation is needed -- enumeration checks both and takes what
answers.
Both patterns are the same thing underneath: a logical unit is a seed
collection path to poll plus an href transform between the canonical
href the registry knows and the actual on-the-wire href. That is the
whole abstraction (SubUnit), applied at four boundaries -- discovery,
the coordinator, the adapter, and the platforms. Capabilities, the
registry and the climate composite stay written against canonical hrefs
and are untouched.
Uniqueness comes from a key_prefix inside the flattened state key, so
the master unit's keys are byte-identical to every release before this
and every existing golden file is an unchanged regression guard. Each
sub-unit gets its own device-registry entry linked by via_device and
named from its own /information/vs/<n>, so it lands in its own room
rather than crowding the master's device page.
A sub-unit materializes only when it yields at least one primary
(non-diagnostic) entity with a populated value. That gate is not
decoration: the reporter's /device/2 is an unused slot that SmartThings
shows disabled, yet it answers with a full 14-href batch, and it
flattens to exactly one non-None value -- a diagnostic alarm_code
derived from an empty /alarms/vs/2. Without the entity-category filter
it becomes a phantom third climate card. The rule is deliberately
domain-agnostic rather than a list of HVAC hrefs, so a multi-drum
washer (#19) gets the same treatment with no new curation. Units that
answer but fail the gate are logged and reported in diagnostics, so a
genuinely missing unit stays diagnosable from a dump.
Enumeration fetches things that must not then be treated as appliance
state. A rejected candidate's seed has to be read to evaluate the gate,
but only units that pass are polled again, and StateCache has no
eviction -- so discovery runs before the first cache apply and those
reps are held aside for diagnostics rather than frozen into the cache
forever. /multidevice/vs/0 is probed on every device regardless of
family, so merging it into the resources dict would have reached
discovery on any board whose registry doesn't ignore that href -- only
the air conditioner one does -- raising a spurious coverage-gap repair
for a washer or fridge whose firmware answers it. It is corroborating
metadata (numofsubdevice, confirmed read-only) and now lives beside the
resources rather than in them.
Diagnostics reports each unit separately: top-level `resources` is this
unit's own and only its own, which is what the module docstring and the
adding-device-support skill have always claimed it was, and each
sibling or rejected candidate carries its own reps canonicalized so a
block reads exactly like the master's instead of needing to be
de-indexed by hand.
Fixtures are real captures. The ARTIK051_DONGLE_FAC_18K one is entirely
verbatim, both sibling seeds and the hand-read /multidevice/vs/0
included. The TP2X_FAC_BORA one has a real device0, oic_res and
sub-unit /information/vs/0, with the remainder of that unit's tree
constructed and documented as such in seeds_note; /<uuid>/device/0 is
the one part of that pattern still inferred rather than observed, and
can't be tested through the debug panel because a Collection returns a
list.
Marc Billow