Fix ESPHome entities not being removed when the ESPHome config removes an entire platform

[bdraco]

Proposed change

TLDR: if all entities for a specific platform i.e. sensor were removed from the ESPHome config, they would not get removed in HA. Remove only worked if there was at least one entity on that platform remaining.

If all entities on a platform were removed from the ESPHome config, the callback for the platform would not fire which meant the entities would not get removed. Make sure the callback fires with an empty list when everything on the platform is removed.

Everything worked correctly if there was at least one entity remaining on the platform. The problem would only happen if all the entities for a platform were removed from the ESPHome config.

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 Entities cannot be manually deleted even after removing them from ESPHome configuration if all entities for a platform are removed from the ESPHome device #140756
• This PR is related to issue:
• Link to documentation pull request:
• Link to developer documentation pull request:
• Link to frontend pull request:

Checklist

• The code change is tested and works locally.
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• Tests have been added to verify that the new code works.

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[home-assistant]

Hey there @OttoWinter, @jesserockz, @kbx81, mind taking a look at this pull request as it has been labeled with an integration (esphome) you are listed as a code owner for? Thanks!

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[bdraco]

Still doesn't fix it. Need to write some more tests as it means there is more wrong

[frenck]

Thanks, @bdraco 👍

../Frenck

[bdraco]

Thanks