name: Cleanup

on:
  pull_request:
    types: [ closed ]

permissions:
  id-token: write
  contents: read
  pull-requests: write
  
jobs:
  meta:
    name: Meta
    runs-on: ubuntu-latest
    outputs:
      context: ${{ steps.meta.outputs.context }}
      environment: ${{ steps.meta.outputs.environment }}
      namespace: ${{ steps.meta.outputs.namespace }}

    steps:
    - name: Generate metadata
      id: meta
      run: |
        set -xo pipefail
        PROJECT=plateforme-ebs
        CONTEXT=nonprod
        ENVIRONMENT=nonprod

        echo "context=${CONTEXT}" >> $GITHUB_OUTPUT
        echo "environment=${ENVIRONMENT}" >> $GITHUB_OUTPUT
        echo "namespace=${CONTEXT}-${PROJECT}" >> $GITHUB_OUTPUT


  cleanup:
    name: Cleanup
    runs-on: ubuntu-latest
    environment:
      name: ${{ needs.meta.outputs.environment }}
    needs: ["meta"]
    steps:
      - name: Checkout
        uses: actions/checkout@v3

      - name: GKE Auth
        uses: 'google-github-actions/auth@v2'
        with:
          project_id: '${{ secrets.PROJECT_ID }}'
          workload_identity_provider: '${{ secrets.WORKLOAD_IDENTITY_PROVIDER }}'

      - name: Setup gcloud
        uses: google-github-actions/setup-gcloud@v1
        with:
          project_id: ${{ secrets.PROJECT_ID }}

      - name: Connect cluster
        run: |
          gcloud components install gke-gcloud-auth-plugin
          gcloud auth login --cred-file=$CLOUDSDK_AUTH_CREDENTIAL_FILE_OVERRIDE
          gcloud container clusters get-credentials ${{ vars.CLUSTER_NAME }} --region europe-west1 --project ${{ secrets.PROJECT_ID }}
          kubectl config view

      - name: Uninstall helm release
        id: uninstall_helm_release
        run: |
          export RELEASE_NAME=pr-$(jq --raw-output .pull_request.number $GITHUB_EVENT_PATH)
          echo "Uninstalling release $RELEASE_NAME in namespace ${{ needs.meta.outputs.namespace }}..."
          if ! helm uninstall $RELEASE_NAME --namespace ${{ needs.meta.outputs.namespace }} --wait ; then
            echo "HELM Uninstall has failed !"
            echo "Please ask the SRE team to manually clean remaining objects"
            exit 1
          fi
          echo "HELM uninstall successfull"
          echo "Cleaning remaining PVC..."
          kubectl delete pvc -l app.kubernetes.io/instance=$RELEASE_NAME --namespace ${{ needs.meta.outputs.namespace }}