Change no thermostat schedule defined representation

[bouwew]

At present, no thermostat schedule defined result in:

• available_schedules = []
• selected_schedule = None

In HA this will lead to the related Select not being shown.

When a user defines a schedule, this change will not be picked up automatically by the Plugwise integration. An integration-reload will be required to show the user-update.

Proposed solution: show off as a the single option when no schedule is defined. This should result in the Select being present with no other options to select. When the user creates a schedule the change should automatically be picked up.

Summary by CodeRabbit

Summary by CodeRabbit

• Bug Fixes

  • Thermostats without a defined schedule now consistently show the “off” option instead of blank/undefined values.
  • Schedule availability and the currently selected schedule stay consistent between current and legacy thermostat setups.
  • The “off” option is now listed first in schedule selections for easier access.

• Documentation

  • Updated release notes/changelog to reflect the new “no thermostat schedule” representation.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 041ca68c-ce22-4430-8f45-d78aced1b7ae

📥 Commits

Reviewing files that changed from the base of the PR and between 70bd7c6 and 30103db.

📒 Files selected for processing (1)

• CHANGELOG.md

🚧 Files skipped from review as they are similar to previous changes (1)

• CHANGELOG.md

---

📝 Walkthrough

Walkthrough

Thermostat schedule handling now uses off instead of None for the no-schedule state. Runtime logic, legacy handling, fixtures, test data, and the changelog were updated, with off placed first in available schedule lists.

Changes

Schedule off standardization

Layer / File(s)	Summary
Runtime schedule sentinel handling plugwise/data.py, plugwise/helper.py, plugwise/legacy/*	Schedule defaults, selection values, climate-mode checks, and schedule ordering now use OFF instead of NONE.
Fixture schedule expectations fixtures/*/data.json	Fixture data uses "off" for schedules without defined rules and places it first in available schedule arrays.
Test data schedule expectations tests/data/adam/*, tests/data/anna/*, tests/data/stretch/*	Test fixtures mirror the updated schedule values and ordering, with related array formatting updates.
Changelog update CHANGELOG.md	The changelog records the None to off representation change.

Estimated code review effort: 2 (Simple) | ~10 minutes

Possibly related PRs

• plugwise/python-plugwise#643: Also modifies _get_schedule_states_with_off() in plugwise/data.py.
• plugwise/python-plugwise#799: Updates related Adam fixture schedule ordering and selection values.
• plugwise/python-plugwise#878: Targets the same heating-off scheduling fixture.

Suggested labels:bug

Suggested reviewers:compatech

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title matches the main change: representing an undefined thermostat schedule as off.
Docstring Coverage	✅ Passed	Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch schedule_null

---

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (ce32275) to head (30103db).

Additional details and impacted files

@@ Coverage Diff @@## main #899 +/- ##
=========================================
Coverage 100.00% 100.00% =========================================
Files 21 21 Lines 3508 3502 -6 =========================================
- Hits 3508 3502 -6 

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud