how-to arithmetics 2 [preparing just in case is needed] #714

	name: Teardown Website
	on:
	pull_request_target:
	types:
	- closed

	env:
	AWS_REGION: ${{ secrets.AWS_REGION }}
	AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
	AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}

	jobs:
	teardown:
	runs-on: ubuntu-latest
	steps:
	- name: Check if deployment exists
	id: check_deployment
	run: \|
	num_obj=$(aws s3 ls s3://${{ secrets.AWS_PR_S3_BUCKET_ID }}/${{ secrets.AWS_PR_BUCKET_BUILD_DIR }}/${{ github.event.pull_request.number }}/index.html --summarize \| grep "Total Objects: " \| sed 's/[^0-9]*//g')
	echo "exists=$num_obj" >> $GITHUB_OUTPUT

	- name: Teardown
	if: steps.check_deployment.outputs.exists != '0'
	run: \|
	aws s3 rm s3://${{ secrets.AWS_PR_S3_BUCKET_ID }}/${{ secrets.AWS_PR_BUCKET_BUILD_DIR }}/${{ github.event.pull_request.number }} --recursive

	- name: Deactivate Deployment
	uses: actions/github-script@v6
	with:
	script: \|
	const deployments = await github.rest.repos.listDeployments({
	owner: context.repo.owner,
	repo: context.repo.repo,
	environment: 'preview',
	task: 'deploy:pr-${{ github.event.pull_request.number }}'
	});

	const numDeployments = deployments.data.length;
	if (numDeployments > 0) {
	for (const deployment of deployments.data) {
	await github.rest.repos.createDeploymentStatus({
	owner: context.repo.owner,
	repo: context.repo.repo,
	deployment_id: deployment.id,
	state: 'inactive'
	});
	await github.rest.repos.deleteDeployment({
	owner: context.repo.owner,
	repo: context.repo.repo,
	deployment_id: deployment.id
	});
	}
	}

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