name: '[CI/CD] CD Pipeline'
on: # rebuild any PRs and main branch changes
  push:
    branches:
      - main
    paths:
      - 'bitnami/**'
env:
  CSP_API_URL: https://console.cloud.vmware.com
  CSP_API_TOKEN: ${{ secrets.CSP_API_TOKEN }}
  VIB_PUBLIC_URL: https://cp.bromelia.vmware.com
jobs:
  get-containers:
    runs-on: ubuntu-latest
    name: Get modified containers path
    outputs:
      result: ${{ steps.get-containers.outputs.result }}
      containers: ${{ steps.get-containers.outputs.containers }}
    steps:
      - id: get-containers
        name: Get modified containers path
        env:
          GITHUB_COMMITS: ${{ toJson(github.event.commits) }}
        run: |
          if [[ "${{ github.event.forced }}" == "false" ]]; then
            # Get all commits associated to the push
            commits=($(echo "${GITHUB_COMMITS}" | jq -r '.[] | .id'))
            containers=()
            for commit in "${commits[@]}"; do
              containers_in_commit=()
              # Using the Github API to detect the files changed as git merge-base stops working when the branch is behind
              URL="https://api.github.com/repos/${{ github.repository }}/commits/${commit}"
              files_changed_data=$(curl -s --header 'authorization: Bearer ${{ secrets.GITHUB_TOKEN }}' -X GET -G "$URL")
              files_changed="$(echo $files_changed_data | jq -r '.files[] | .filename')"
              # Adding || true to avoid "Process exited with code 1" errors
              containers_in_commit+=($(echo "$files_changed" | xargs dirname | grep -o "^bitnami/[^/]*/[^/]*/[^/]*" | sort | uniq || true))
              # Changes done in readme files?
              readme_object="$(echo $files_changed_data | jq -r '[ .files[] | select(.filename | test("^bitnami/[^/]+/README.md"))] | first')"
              if [[ "${readme_object}" != "null" ]]; then
                # Look for modified branch in Readme content
                container_name="$(echo ${readme_object} | jq -r '.filename' | sed -nr "s|bitnami/([^/]+)/README.md|\1|p")"
                branch="$(echo ${readme_object} | jq -r '.patch' | grep -o "([^/]*/[^/]*/Dockerfile)" | sort -u | head -n 1 | sed -nr "s|\((.+)/Dockerfile\)|\1|p")"
                if [[ ! -z "${branch}" ]] && [[ ! -z "${container_name}" ]]; then
                  # readme file changed and the diff contains a change about the latest version generated by EAM
                  containers_in_commit+=("bitnami/${container_name}/${branch}")
                fi
              fi
              for container in "${containers_in_commit[@]}"; do
                if [[ ! $containers =~ (^|[[:space:]])$container($|[[:space:]]) ]]; then
                  # Avoid duplicates
                  containers+=("${container}")
                fi
              done
            done

            if [[ "${#containers[@]}" -le "0" ]]; then
              echo "No changes detected in containers. The rest of the steps will be skipped."
              echo "::set-output name=result::skip"
            else
              containers_json=$(printf "%s\n" "${containers[@]}" | jq -R . | jq -cs .)
              echo "::set-output name=result::ok"
              echo "::set-output name=containers::${containers_json}"
            fi
          else
            echo "Forced push detected. CD pipeline will be skipped"
            echo "::set-output name=result::skip"
          fi
  vib-publish:
    runs-on: ubuntu-latest
    needs: get-containers
    if: ${{ needs.get-containers.outputs.result == 'ok' }}
    name: publish
    strategy:
      fail-fast: false
      matrix:
        container: ${{ fromJSON(needs.get-containers.outputs.containers) }}
    steps:
      - uses: actions/checkout@v3
        name: Checkout Repository
        # Required to search the latest commit with the tag
        with:
          fetch-depth: 0
      - id: get-container-metadata
        name: Get image tag and container name
        run: |
          if [[ -d "${{ matrix.container }}" ]]; then
            # Now EAM commits has the following format "[bitnami/<container>] Release <tag>"
            tag="$(git log --pretty=tformat:"%s" -n 1 --grep="[R|r]elease" --author bitnami-bot@vmware.com --author containers@bitnami.com --author containers-bot@bitnami.com -- ${{ matrix.container }} | sed "s|\[.*\]||" | sed "s|[R|r]elease||" | awk '{print $1}')"
            if [[ -z "${tag}" ]]; then
              echo "No tag found for: ${{ matrix.container }}"
              exit 1
            else
              name="$(echo "${{ matrix.container }}" | awk -F '/' '{print $2}')"
              echo "::set-output name=tag::${tag}"
              echo "::set-output name=name::${name}"
              echo "::set-output name=result::ok"
            fi
          else
            # Container folder doesn't exists we are assuming a deprecation
            echo "::set-output name=result::skip"
          fi
      - uses: vmware-labs/vmware-image-builder-action@main
        name: 'Publish ${{ steps.get-container-metadata.outputs.name }}: ${{ steps.get-container-metadata.outputs.tag }}'
        if: ${{ steps.get-container-metadata.outputs.result == 'ok' }}
        with:
          pipeline: vib-publish.json
        env:
          # Path with docker resources
          VIB_ENV_PATH:  ${{ matrix.container }}
          # Container name
          VIB_ENV_CONTAINER: ${{ steps.get-container-metadata.outputs.name }}
          VIB_ENV_TAG: ${{ steps.get-container-metadata.outputs.tag }}
          VIB_ENV_REGISTRY_URL: ${{ secrets.OCI_REGISTRY_URL }}
          VIB_ENV_REGISTRY_USERNAME: ${{ secrets.OCI_REGISTRY_USERNAME }}
          VIB_ENV_REGISTRY_PASSWORD:  ${{ secrets.OCI_REGISTRY_PASSWORD }}