name: '[Support] Assign asset label'
on:
  pull_request_target:
    types:
      - opened
permissions:
  pull-requests: write
  issues: write
jobs:
  assign-label:
    name: Assign label
    runs-on: ubuntu-latest
    steps:
      - id: get-asset
        name: Get modified assets
        run: |
          # Using the Github API to detect the files changed as git merge-base stops working when the branch is behind
          # and jitterbit/get-changed-files does not support pull_request_target
          URL="https://api.github.com/repos/${{ github.repository }}/pulls/${{ github.event.pull_request.number }}/files"
          files_changed_data=$(curl -s --header 'authorization: Bearer ${{ secrets.GITHUB_TOKEN }}' -X GET -G "$URL")
          files_changed="$(echo $files_changed_data | jq -r '.[] | .filename')"
          # Adding || true to avoid "Process exited with code 1" errors
          assets=($(echo "$files_changed" | xargs dirname | sed -nr "s|bitnami/([^/]*).*|\1|p" | sort | uniq || true))

          if [[ "${#assets[@]}" -ne "1" ]]; then
            echo "result=skip" >> $GITHUB_OUTPUT
            echo "message=Label cannot be set, cannot infer a single label from: ${assets[@]}" >> $GITHUB_OUTPUT
            echo "name=NONE" >> $GITHUB_OUTPUT
          else
            echo "result=ok" >> $GITHUB_OUTPUT
            echo "message=Adding label '${assets}'"  >> $GITHUB_OUTPUT
            echo "name=${assets}" >> $GITHUB_OUTPUT
          fi
      - name: Show messages
        uses: actions/github-script@v6
        with:
          script: |
            if ("${{ steps.get-asset.outputs.result }}" != "ok" ) {
              core.warning("${{ steps.get-asset.outputs.message }}")
            } else {
              core.info("${{ steps.get-asset.outputs.message }}")
            }
      - name: Labeling
        if: ${{ steps.get-asset.outputs.result == 'ok' }}
        uses: fmulero/labeler@1.0.5
        with:
          add-labels: "${{ steps.get-asset.outputs.name }}"