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6 Commits
Author SHA1 Message Date
Marc Billow bb20eea191 laundry: a payload sitting there is not evidence of when it got there
The Download-course candidate came from "Course_ read while a non-sentinel
one-time payload is loaded". On the first rep after any restart that is
indistinguishable from a payload left over from a previous run, so an
appliance holding cloud payloads while sitting on an ordinary course
proposed that ordinary course as the Download one. Accepting the prefill
would then make selecting a downloaded program start, say, a cotton wash.

Only a transition actually watched counts now. "Never observed" is a
distinct state from "observed, nothing loaded" -- absent-then-loaded is a
genuine selection and still counts -- so a restored store deliberately
re-enters the unobserved state, since a restart cannot tell the two apart.

Payloads are still learned from that first rep either way; which programs
exist is device fact regardless of when they were loaded. It is only the
inference about which course means Download that needs the timing.

Both corpus dumps taken off the Download course show the appliance clearing
its one-time token to the FFFF sentinel, so this may never fire on these
boards. That is a reason to expect them to behave, not to depend on it.
2026-08-10 10:16:00 +00:00
Marc Billow d27bfc6405 laundry: CloudExtraCourse_ means two different things; tell them apart
Its bytes are not payload slots everywhere. On the DW5000C dishwasher all
four (8E 8D 8F 02) are course codes in that device's own course list, three
already translated -- Plastic, Pots and pans, Baby Care. There the token
marks which ordinary courses came from the cloud; they select with a plain
Course_ write and need no payload, which is consistent with it carrying no
payload token at all. It also has a DownloadCourseList_ token the washers
lack. On both washers the slots share zero overlap with the course list and
a payload is required to select one.

So the "this is not washer-only" claim was wrong, and gating on
advertised_slots offered that dishwasher's owner a naming flow for programs
that already work and are already named. The Repairs card was spared only
because the payload gate added earlier happens to catch it.

cloud_slots() subtracts the device's own course list, which separates the two
readings without guessing at families: what remains is slots that cannot be
selected any other way, which is what this module is for. Everything
user-facing now gates on that -- the options menu entry, the naming flow, the
Repairs count. The dishwasher gets nothing, both washers are unchanged.

Found by reading the dishwasher fixture's options array while answering a
question about it, which is also why diagnostics now reports advertised and
cloud slots separately: the difference between them is the whole distinction.
2026-08-10 03:55:13 +00:00
Marc Billow 2265c52c77 laundry: apply cleanup review to the cloud-cycle branch
Four parallel reviews (reuse, simplification, efficiency, altitude). The two
that change behavior:

- observe() could report "changed" on every poll forever, rewriting the
  config entry each time. If both tokens name the same slot with different
  payloads -- a downloaded program with its settings tweaked for one run is
  exactly that shape -- each pass wrote the default's blob then the one-shot's
  over it, so neither was ever already stored. On the SD-card installs this
  integration runs on, sustained entry rewrites are the one cost here that
  bites. The end state is stable, so "changed" is now start-vs-end, not
  per-assignment.
- The write path copied every tracked href to read one rep, walking past the
  accessor added to avoid exactly that. New entity_rep() does the merge for a
  single href; cycle_write drops the resources parameter it never used.

Structure:

- device_resources() is a second accessor giving the pure device view, used
  by diagnostics and the debug read service. That deletes strip_synthetic,
  the _SYNTHETIC_KEY_PREFIX convention and the redact filter added last
  commit: "a dump is what the device said" is now which method you call
  rather than something every future exporter has to remember.
- apply_cloud_courses() is the single mutation path. The flow was reaching
  past the coordinator into the store and relying on a later call to persist
  and invalidate for it; nine names are also now one entry write, not nine.
- option_value/hex_pairs move to capabilities/common.py. The duplicate's
  stated reason -- that the coordinator shouldn't import from
  registry.capabilities -- was simply false; it already does, and so does
  learned.py. The real constraint is narrower: laundry.py imports
  cloudcourse, so the reverse would be a cycle.

Dropped rather than kept:

- The cloud-vs-translated-local-course name check, and catalog.
  translated_state_labels with it. The catalog this process can read is
  English while the dropdown is localized in the frontend, so it rejected
  "Cotton" for a German user seeing "Baumwolle" and missed the real collision
  when they typed "Baumwolle" -- wrong in both directions outside one locale,
  against an outcome option ordering already makes deterministic. The checks
  that survive compare strings that are the same in every locale: the user's
  own names, and the device's personal-course labels.
- stored(), clear()/forget_cloud_courses(), blob(), download_course() -- no
  production callers. stored() was a template artifact whose docstring
  described a caller that cannot exist here.

Diagnostics gains a cloud_courses block, which the store was missing next to
learned_modes -- payloads and which slots are named, but not the names
themselves, since those are the user's words and dumps get pasted publicly.

Kept against one reviewer's advice: option_tokens (two others called
generalizing option_write the right direction) and select._display's
uncatalogued branch, which names a condition the old fallback-is-None proxy
only got right by accident. Deferred: making the store per-subdevice. It is
MAIN-only today and no device seen advertises cloud programs elsewhere; the
limitation is now documented where it is made.
2026-08-10 03:30:23 +00:00
Marc Billow b921bdbb28 laundry: fix six issues from review of the cloud-cycle branch
Also drops appliance-specific wording from the new user-facing strings. The
setup step said "your washer" and told people to "turn the dial", which is
wrong for the DW5000C dishwasher that advertises the same tokens.

The two that could have caused a wrong wash cycle:

- The Download-course candidate was counted on every poll that saw a loaded
  one-time payload, not on the polls where one was actually loaded. Since a
  stale token is never evicted, it keeps being reported through however long
  the appliance then sits on some ordinary course -- so "most frequent"
  ranked by dwell time. Reproduced: one poll on Course_87 then 200 on
  Course_1B suggests 1B, and accepting the suggestion makes picking a
  download program start a Cotton wash. Now only a change of the payload
  counts, which is the moment the device is known to accept a program.
- The Download-course dropdown had custom_value=True, contradicting its own
  comment, so a typed-in code went into the Course_ token of a real write
  unchecked. Off now, plus a server-side check against the device's own
  course list where the value is stored.

Two that quietly broke things beyond this feature:

- cycle_select now always supplies a display_fn (to label cloud programs),
  which defeated select._display's "no state table and no fallback -> return
  raw" exit. Every dryer, dishwasher and air dresser on an unrecognized
  course table would have had its options and state reshaped from '0E' to
  '0 E', breaking automations and recorder history. The exit now keys off
  whether anything actually named the value, not whether a fallback existed.
- The synthetic cloud field reached diagnostics, which reads
  canonical_resources -- publishing user-typed program names in a dump
  people paste into issues, directly against the comment claiming it never
  could. Dropped at the redaction boundary, with a matching strip for the
  debug read service, which wants device state unredacted but shouldn't
  present our bookkeeping as something the appliance said.

And two smaller ones:

- The repair fired on any device advertising slots, so the DW5000C -- four
  advertised, none ever loaded -- got a permanent warning nothing the owner
  did in Home Assistant could clear. It now waits until a payload has been
  seen, which is the only evidence that household uses downloaded programs.
- The name-collision check read only the translation catalog, missing the
  device's own personal-course labels, which the select renders identically.
2026-08-10 03:16:07 +00:00
Marc Billow 9d28b088cb laundry: cover a device that advertises cloud cycles it has never loaded
A survey of every laundry diagnostics dump attached to an issue turned up 14
devices, 4 of which carry cloud-course tokens. Two were already known; the
two new ones are both useful, and one contradicts something the
investigation write-up asserted.

A DW5000C dishwasher (issues #113/#123) advertises four downloaded programs
and carries no payload token for any of them. That is a shape the corpus
didn't have: the feature is not washer-only (DA_DW, not DA_WM), and a device
can name programs whose payloads have never been observed. The existing code
already handles it correctly -- nothing learnable, nothing offered, gap still
counted for the Repairs issue -- so this adds the fixture, golden, and tests
that keep it that way.

A second WW5000C (issues #259/#343, firmware _B048) holds the same saved
program as the first one's captured "Towels", and the two payloads differ at
exactly one byte: byte 3, 04 against 06. Everything else -- id, slot, all
four varying tag values, the whole tail -- is identical. So byte 3 is neither
a per-board constant nor a property of the program, and the doc's claim that
it is always 04 on this board was wrong.

That is also the strongest argument yet for learning payloads per device: a
catalog keyed on program id would have shipped one unit's byte 3 to the
other. Nothing changes in the implementation as a result -- it never had a
catalog -- but the reasoning is now backed by evidence rather than caution.

Also recorded: both WW5000C units advertise the byte-identical slot list
despite different firmware, so the program set looks factory- or
region-assigned rather than user-curated; and a sentinel's byte 2 equals the
selected course on one dump but not the other, so it stays unused.
2026-08-09 21:46:29 +00:00
Marc Billow f45bd6a72c laundry: discover and offer cloud "Download" cycles (issue #342)
A washer whose course table includes "Download"/"Downloaded" runs whichever
program the SmartThings cloud last pushed down. Those programs are now
selectable from the ordinary cycle select, so a downloaded Jeans or Sports
cycle can be started without giving the appliance internet access.

The device turns out to enumerate them itself. `CloudExtraCourse_` on
/course/vs/0 lists one byte per downloaded program, and byte 2 of a
program's payload is exactly that slot id -- verified against all nine
programs on the reporter's WW5000C and against the WA55A7700AV dump already
in the corpus. So nothing here is hardcoded: the appliance says which
programs exist, the payloads are learned by watching what it reports, and
the names come from the user.

That last part is unavoidable rather than a shortcut. A payload is only
visible while its program is loaded, and the appliance never reports a name
for one. So cloudcourse.py persists what has been seen (same rationale as
learned.py's mode store), a Repairs issue tells the owner how many programs
are still unaccounted for, and an options-flow step collects the names. A
program appears in the cycle select only once it is both learned and named.

Selecting one issues the only two-token options write in the codebase --
the course token has to switch to Download in the same write, or the
appliance accepts the program token and silently ignores it (confirmed on
hardware). The Download course code is learned by observation but never
applied until the user confirms it: tokens in this array are replaced by
prefix and never evicted, so a stale program token can appear alongside an
unrelated course, and acting on that would start the wrong wash cycle. For
the same reason a stale token is never reported as the running program.

Also of note:

- There is no single "Download" course code. The WW5000C uses 87, the
  WA55A7700AV uses 17 -- same Table_02. Any per-table lookup would have
  been wrong on one of the only two devices available to check.
- Payloads are replayed byte-for-byte and never decomposed or rebuilt.
  Bytes 5/7/9 do decode to temperature/rinse/spin on the WW5000C, 9 for 9,
  and produce nonsense on the WA55A7700AV -- so that decode is written up
  in docs/investigations/download-cycle.md and not shipped, and the
  read-only sensors it would have enabled were dropped.
- The store reaches the registry as a namespaced synthetic field merged
  onto /course/vs/0's rep at read time, so exists_fn/rep_fn/options/write_fn
  all see it through their existing signatures. It never enters the state
  cache, so it can't be polled over, written to the device, or land in a
  diagnostics dump.
- A name that would render identically to another cycle in the same
  dropdown is rejected in the flow: the select maps a chosen label back to
  a raw value by matching display text.

Non-English catalogs carry the new strings in English for now; they need
real translations.
2026-08-09 21:21:10 +00:00