[Alert Integration] On Home Assistant startup, fire alert if conditions met

[Ranger2959]

Proposed change

On startup, check to see if an alert should be firing based on the alert conditions and fire the alert if so.

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

• Link to documentation pull request: [Alert Integration] On Home Assistant startup, fire alert if conditions met home-assistant.io#29986

Checklist

• 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
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• The code has been formatted using Black (black --fast homeassistant tests)
• Tests have been added to verify that the new code works.

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.
• Untested files have been added to .coveragerc.

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

[home-assistant]

Hi @Ranger2959

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]

Hey there @home-assistant/core, @frenck, mind taking a look at this pull request as it has been labeled with an integration (alert) you are listed as a code owner for? Thanks!

Code owner commands

Code owners of alert can trigger bot actions by commenting:

• @home-assistant close Closes the pull request.
• @home-assistant rename Awesome new title Renames the pull request.
• @home-assistant reopen Reopen the pull request.
• @home-assistant unassign alert Removes the current integration label and assignees on the pull request, add the integration domain after the command.
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• @home-assistant remove-label needs-more-information Remove a label (needs-more-information, problem in dependency, problem in custom component) on the pull request.

[frenck]

Thanks for the PR!

The core team has discussed the alert integration and related PRs recently. We don’t want to expand the alert integration any further. Our future plans for this integration are to replace it with blueprinted automations. Once we have evolved our blueprint feature we plan to deprecate this integration.

Thanks for your willingness to contribute!

../Frenck