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Fix TRV status ingestion: subscribe to live shellies/+/status topic

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The firmware actually running on the deployed TRVs (SHTRV-01 v2.2.4,
confirmed against live hardware) publishes a combined status blob on
shellies/<id>/status, not the per-field shellies/<id>/thermostat/0/target_t
topic handleStatus() was written against — so current_target_temp was
permanently NULL and the dashboard modal always showed "—".

Adds handleStatusBlob() to parse the real payload shape and populate
current_target_temp/current_room_temp/battery_pct. This firmware also has
no guest-vs-automation 'source' field, so guest detection is redesigned to
diff an incoming target_t against a new last_commanded_target_t column,
stamped by publishTarget() right before every command is sent. A mismatch
means the guest changed it via the dial; a match means it's an echo of our
own automation.

Old handleStatus()/topicMatchesStatus() path left in place, dormant —
harmless if some future firmware does use per-field topics.

TRV command topic (shellies/<id>/thermostat/0/command/target_t) is still
unverified against live hardware — flagged in code comments.
This commit is contained in:
jtricerolph 2026-08-25 14:09:38 +00:00
parent 1a06a860f5
commit 807a27ca1b
2 changed files with 74 additions and 4 deletions
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7
backend/src/db.js
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@ -176,6 +176,13 @@ export async function initDb() {
await pool.query(`ALTER TABLE zone_devices ADD COLUMN IF NOT EXISTS remote_locked BOOLEAN`)
await pool.query(`ALTER TABLE zone_devices ADD COLUMN IF NOT EXISTS status_updated_at TIMESTAMPTZ`)
// Live TRV firmware (SHTRV-01 v2.2.4, confirmed 2026-08-25) publishes a combined
// status blob with no guest-vs-automation 'source' field the old archived logic
// relied on. Guest detection is done by diffing an incoming target_t against the
// last value hvac itself commanded — stamped here right before every publish, read
// back in mqtt.js's status handler. A mismatch = guest changed it via the dial.
await pool.query(`ALTER TABLE zone_devices ADD COLUMN IF NOT EXISTS last_commanded_target_t NUMERIC(4,1)`)
// Default-template rollout: existing installs created occupied_temp/vacant_temp/
// heating_offset_min/cooling_offset_min as NOT NULL with a hardcoded default — relax
// that so NULL can mean "inherit the global hvac_defaults template" (see seedDefaults()