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feat: add MQTT notify entity - #29

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ederjc merged 3 commits into
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feature/notify-entity
Sep 27, 2026
Merged

ederjc merged 3 commits into
masterfrom
feature/notify-entity

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@ederjc

@ederjc ederjc commented Sep 26, 2026

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Summary

Adds an MQTT Notify helper that lets Home Assistant send notification messages to a MicroPython device.

Changes

  • Adds uhome.Notify with MQTT notify discovery and a generated cmd_t command topic.
  • Provides set_action() callback handling through _subscribe() so command subscriptions are restored after reconnects.
  • Documents that Notify has no cached state to replay.
  • Adds README usage and focused tests for discovery, command handling, reconnect subscription restoration, and no cached republish.

Usage

display = uhome.Notify(device, 'Display')
display.set_action(lambda msg: print(msg))

Testing

  • python -m unittest discover -s tests -v — OK (13 tests)

Notes

This PR is stacked on fix/connection-robustness (#3). Trivial append-conflicts in uhome.py/README.md with sibling entity PRs are expected.

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Reviewed the new Notify entity against HA's MQTT notify discovery schema and the existing Entity base pattern. cmd_t is always auto-derived via topic_for("command") rather than being overridable by the caller, but that's consistent with how every other entity in this codebase auto-generates its topics, so I don't consider it a bug — just noting it's intentional by design. tests/test_notify.py (13/13). LGTM (note: could not formally "Approve" since GitHub blocks self-approval of your own PR).

@ederjc ederjc added the copilot-approved Approved by Copilot. label Sep 27, 2026
@ederjc
ederjc force-pushed the feature/notify-entity branch 2 times, most recently from e7d3a45 to e78215a Compare September 27, 2026 10:11
@ederjc
ederjc changed the base branch from fix/connection-robustness to master September 27, 2026 10:12
@ederjc
ederjc force-pushed the feature/notify-entity branch 2 times, most recently from e2f5e56 to 6319123 Compare September 27, 2026 12:07

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Re-review after rebase onto master (all 6 CI checks now run)

This branch was rebased onto the latest master (includes #36's race-condition fix). Initial run after rebase failed MicroPython unix port — root-caused to tests/test_notify.py using pathlib (unavailable under the real MicroPython unix-port test env), plus self.assertNotIn(...), which MicroPython-lib's unittest port doesn't implement (only assertIn exists). Fixed the imports here and added a reusable assertNotIn shim to tests/test_uhome.py in #37 (merged to master); rebased again on top.

CI results (latest run):

Check Result
Python 3.11 ✅ pass
Python 3.13 ✅ pass
Ruff lint and format check ✅ pass
Compile MicroPython sources ✅ pass
MicroPython unix port ✅ pass
MQTT integration test ✅ pass

All 6 checks green. LGTM — marking copilot-approved.

ederjc and others added 3 commits September 27, 2026 15:33
Replace pathlib.Path/contextlib.redirect_stderr usage in the new entity
test file with the same MicroPython-safe patterns already used by
tests/test_uhome.py (os.path-based sys.path setup and the local
_RedirectStderr helper), since neither pathlib nor contextlib is
available under the CI's MicroPython unix-port + mip package set.
Also fix a PLC0206 ruff finding (iterate kwargs/attributes via
.items() instead of re-indexing the dict) where present.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
@ederjc
ederjc force-pushed the feature/notify-entity branch from 6319123 to 2db708d Compare September 27, 2026 13:33
@ederjc
ederjc merged commit 4d4af06 into master Sep 27, 2026
6 checks passed
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