name: Clean up PR Compiler Service Container

on:
  pull_request:
    types: [closed]
    branches:
      - main

jobs:
  build:
    if: github.repository == 'moergo-sc/zmk'
    runs-on: ubuntu-latest
    # These permissions are needed to interact with GitHub's OIDC Token endpoint.
    permissions:
      id-token: write
      contents: read
    env:
      ECR_REPOSITORY: zmk-builder-lambda
      UPDATE_COMPILER_VERSIONS_FUNCTION: arn:aws:lambda:us-east-1:431227615537:function:Glove80FirmwarePipelineSt-UpdateCompilerVersions2A-CNxPOHb4VSuV
      PR_NUMBER: ${{ github.event.number }}
    steps:
      - name: Extract image tag name
        shell: bash
        run: |
          tag="pr${PR_NUMBER}.${GITHUB_HEAD_REF}"
          # Replace / with . in container tag names
          tag="${tag//\//.}"
          echo "IMAGE_TAG=${tag}" >> $GITHUB_ENV
        id: extract_name
      - name: Configure AWS credentials
        uses: aws-actions/configure-aws-credentials@v1
        with:
          role-to-assume: arn:aws:iam::431227615537:role/GithubCompilerLambdaBuilder
          aws-region: us-east-1
      - name: Delete the container image for the PR from ECR
        run: aws ecr batch-delete-image --repository-name $ECR_REPOSITORY --image-ids imageTag=$IMAGE_TAG
      - name: Notify the build pipeline that the compile containers have updated
        run: aws lambda invoke --function-name $UPDATE_COMPILER_VERSIONS_FUNCTION /dev/null