Add Watts Vision + integration with tests

[theobld-ww]

Breaking change

Proposed change

• Add official Watts Vision + core integration
• Unit tests

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
• New feature (which adds functionality to an existing integration)
• Deprecation (breaking change to happen in the future)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Additional information

• This PR fixes or closes issue: fixes #
• This PR is related to issue:
• Link to documentation pull request: Add Watts Vision + core integration doc home-assistant.io#41036
• Link to developer documentation pull request:
• Link to frontend pull request:

Checklist

• I understand the code I am submitting and can explain how it works.
• The code change is tested and works locally.
• Local tests pass. Your PR cannot be merged unless tests pass
• There is no commented out code in this PR.
• I have followed the development checklist
• I have followed the perfect PR recommendations
• The code has been formatted using Ruff (ruff format homeassistant tests)
• Tests have been added to verify that the new code works.
• Any generated code has been carefully reviewed for correctness and compliance with project standards.

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated for www.home-assistant.io

If the code communicates with devices, web services, or third-party tools:

• The manifest file has all fields filled out correctly.
  Updated and included derived files by running: python3 -m script.hassfest.
• New or updated dependencies have been added to requirements_all.txt.
  Updated by running python3 -m script.gen_requirements_all.
• For the updated dependencies - a link to the changelog, or at minimum a diff between library versions is added to the PR description.

To help with the load of incoming pull requests:

• I have reviewed two other open pull requests in this repository.

[home-assistant]

Hi @theobld-ww

It seems you haven't yet signed a CLA. Please do so here.

Once you do that we will be able to review and accept this pull request.

Thanks!

[home-assistant]

Please take a look at the requested changes, and use the Ready for review button when you are done, thanks 👍

Learn more about our pull request process.

[home-assistant]

When adding new integrations, limit included platforms to a single platform. Please reduce this PR to a single platform

[Copilot]

Pull Request Overview

Adds a new Watts Vision+ integration for Home Assistant that allows users to control Watts Vision+ heating devices through OAuth2 authentication. The integration supports thermostat control (temperature adjustment, HVAC modes) and switch operations.

Key changes:

• OAuth2-based authentication system for secure API access
• Data coordinator for efficient device management and updates
• Climate and switch platform implementations for device control

Reviewed Changes

Copilot reviewed 24 out of 27 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
homeassistant/components/watts/init.py	Main integration setup with OAuth2 session management and platform registration
homeassistant/components/watts/config_flow.py	OAuth2 configuration flow implementation
homeassistant/components/watts/coordinator.py	Data update coordinator for device discovery and state management
homeassistant/components/watts/climate.py	Climate platform for thermostat device control
homeassistant/components/watts/switch.py	Switch platform for switch device control
homeassistant/components/watts/entity.py	Base entity class with common device information handling
homeassistant/components/watts/auth.py	OAuth2 authentication wrapper
homeassistant/components/watts/application_credentials.py	OAuth2 server configuration
homeassistant/components/watts/const.py	Integration constants and mappings
homeassistant/components/watts/manifest.json	Integration metadata and requirements
homeassistant/components/watts/strings.json	UI text strings for configuration flows
homeassistant/components/watts/quality_scale.yaml	Quality scale compliance tracking
tests/components/watts/*	Comprehensive test suite covering all components
requirements_all.txt & requirements_test_all.txt	Added visionpluspython==1.0.0 dependency
CODEOWNERS	Added maintainers for the new integration

Stale

[theobld-ww]

Reminder, if it's ready for review, please press the button to mark it as such

integration updated to reach Platinum level, now it's ready for review, thank you !
I also adjusted the code to be more specific to thermostat devices, since we plan to add support for switch devices shortly after. The current visionpluspython library supports both thermostats and switches, so I re-added the isinstance check to handle them safely. Please let me know if there’s a cleaner way to do this.

[joostlek]

Going for platinum in the initial PR probably isn't the way to go as it will add things we don't want in the initial PR. I will give it a pass now, feel free to send me a message on Discord

[Copilot]

Pull request overview

Copilot reviewed 28 out of 31 changed files in this pull request and generated 1 comment.