name: '[CI/CD] CI Pipeline'
on: # rebuild any PRs and main branch changes
  pull_request_target:
    types:
      - synchronize
      - labeled
    branches:
      - main
      - bitnami:main
permissions:
  issues: write
  pull-requests: write
  statuses: write
env:
  CSP_API_URL: https://console.cloud.vmware.com
  CSP_API_TOKEN: ${{ secrets.CSP_API_TOKEN }}
  VIB_PUBLIC_URL: https://cp.bromelia.vmware.com
# Avoid concurrency over the same PR
concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number }}
jobs:
  get-containers:
    runs-on: ubuntu-latest
    name: Get modified containers
    if: |
      github.event.pull_request.state != 'closed' &&
      (
        contains(github.event.pull_request.labels.*.name, 'verify') || (github.event.action == 'labeled' && github.event.label.name == 'verify')
      )
    outputs:
      result: ${{ steps.get-containers.outputs.result }}
      containers: ${{ steps.get-containers.outputs.containers }}
    steps:
      - id: get-containers
        name: Get modified containers
        run: |
          # Using the Github API to detect the files changed as git merge-base stops working when the branch is behind
          # and jitterbit/get-changed-files does not support pull_request_target
          URL="https://api.github.com/repos/${{ 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 $files_changed_data | jq -r '.[] | .filename')"
          # Adding || true to avoid "Process exited with code 1" errors
          flavors=($(echo "$files_changed" | xargs dirname | grep -o "^bitnami/[^/]*/[^/]*/[^/]*" | sort | uniq || true))
          assets=($(echo "$files_changed" | xargs dirname | sed -nr "s|bitnami/([^/]*)/.*|\1|p" | sort | uniq || true))
          non_readme_files=$(echo "$files_changed" | grep -vc "\.md" || true)

          if [[ "$non_readme_files" -le "0" ]]; then
            # The only changes are .md files -> SKIP
            echo "result=skip" >> $GITHUB_OUTPUT
          elif [[ "${#assets[@]}" -ne "1" ]]; then
            echo "Changes should affect to only one asset. You are currently modifying: ${assets[@]}"
            echo "result=skip" >> $GITHUB_OUTPUT
          else
            containers_json=$(printf "%s\n" "${flavors[@]}" | jq -R . | jq -cs .)
            echo "result=ok" >> $GITHUB_OUTPUT
            echo "containers=${containers_json}" >> $GITHUB_OUTPUT
          fi
  vib-verify:
    runs-on: ubuntu-latest
    needs: get-containers
    if: ${{ needs.get-containers.outputs.result == 'ok' }}
    name: VIB Verify
    continue-on-error: false
    strategy:
      fail-fast: false
      max-parallel: 2
      matrix:
        container: ${{ fromJSON(needs.get-containers.outputs.containers) }}
    steps:
      - uses: actions/checkout@v3
        name: Checkout Repository
        with:
          # Full history is not required anymore
          fetch-depth: 1
          # labeled events trigger the event with the latest commit in main
          ref: ${{ github.event.pull_request.head.ref }}
          repository: ${{ github.event.pull_request.head.repo.full_name }}
      - id: get-container-metadata
        name: Get image tag and container name
        run: |
          if [[ -d "${{ matrix.container }}" ]]; then
            name="$(echo "${{ matrix.container }}" | awk -F '/' '{print $2}')"
            tag=""
            if [[ "${{ github.event.pull_request.user.login }}" == "bitnami-bot" ]]; then
              tag="$(grep -oE "org.opencontainers.image.ref.name=\".+\"" ${{ matrix.container }}/Dockerfile | sed -nr "s|org.opencontainers.image.ref.name=\"(.+)\"|\1|p")"
            else
              # Build a tag based on current RUN number
              tag="$(echo "${{ matrix.container }}" | awk -F '/' -v run_number="${GITHUB_RUN_NUMBER}" '{printf "%s-rc.%s", $3, run_number}')"
            fi
            if [[ -z "${tag}" ]]; then
              echo "No tag found for: ${{ matrix.container }}"
              exit 1
            else
              echo "tag=${tag}" >> $GITHUB_OUTPUT
              echo "name=${name}" >> $GITHUB_OUTPUT
              echo "result=ok" >> $GITHUB_OUTPUT
            fi
          else
            # Container folder doesn't exists we are assuming a deprecation
            echo "result=skip" >> $GITHUB_OUTPUT
          fi
      - uses: vmware-labs/vmware-image-builder-action@main
        name: Verify
        if: ${{ steps.get-container-metadata.outputs.result == 'ok' }}
        with:
          pipeline: ${{ steps.get-container-metadata.outputs.name }}/vib-verify.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 }}
  verification-summary:
    # Ensure all containers passed the verification
    runs-on: ubuntu-latest
    name: Check Matrix Outcome
    needs:
      - get-containers
      - vib-verify
    outputs:
      result: ${{ steps.get-status.outputs.result }}
    if: ${{ always() }}
    steps:
      - id: get-status
        name: Check Status
        uses: actions/github-script@v6
        with:
          result-encoding: string
          script: |
            state = 'success'
            description = 'Well done! Everything looks good. Please wait for the Bitnami Team review.'
            if ("${{ needs.get-containers.result }}" != "success" ) {
              description = "If you've just created this PR, don't worry about this message. The Bitnami Team has to review it and make the verification possible."
              core.warning(description)
              state = 'pending'
            } else if ("${{ needs.get-containers.outputs.result }}" == "skip" ) {
              description = "It seems these changes don't involve any container"
              core.warning(description)
            } else if ("${{ needs.vib-verify.result }}" != "success" ) {
              description = "Please review previous jobs to get more information"
              core.error(description)
              state = 'error'
            } else {
              core.notice(description)
            }
            try {
              await github.rest.repos.createCommitStatus({
                context: `${context.workflow} / Verification Summary (${context.eventName})`,
                owner: context.payload.repository.owner.login,
                repo: context.payload.repository.name,
                sha: context.payload.pull_request.head.sha,
                target_url: `${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}`,
                description: description,
                state: state
              })
              core.info(`Updated build status: ${state}`)
            } catch (error) {
              core.setFailed(error.message)
            }
            return state
  auto-pr-review:
    runs-on: ubuntu-latest
    name: Reviewal for automated PRs
    needs: verification-summary
    # This job will be executed when the PR was created by bitnami-bot and it has the 'auto-merge' label
    if: |
      always() &&
      contains(github.event.pull_request.labels.*.name, 'auto-merge') &&
      github.event.pull_request.user.login == 'bitnami-bot'
    steps:
      # Approve the CI's PR if the 'VIB Verify' job succeeded
      # Approved by the 'github-actions' user; a PR can't be approved by its author
      - name: PR Approval
        if: ${{ needs.verification-summary.outputs.result == 'success' }}
        uses: hmarr/auto-approve-action@v3.0.0
        with:
          pull-request-number: ${{ github.event.number }}
      - name: Merge
        id: merge
        if: ${{ needs.verification-summary.outputs.result == 'success' }}
        uses: actions/github-script@v6
        with:
          result-encoding: string
          retries: 3
          # Necessary to trigger CD workflows
          github-token: ${{ secrets.BITNAMI_BOT_TOKEN }}
          script: |
            github.rest.pulls.merge({
              pull_number: context.issue.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
              merge_method: 'squash'
            })
      # If the CI did not succeed ('VIB Verify' failed or skipped),
      # post a comment on the PR and assign a maintainer agent to review it
      - name: Manual review required
        if: ${{ always() && (needs.verification-summary.outputs.result != 'success' || steps.merge.outcome != 'success') }}
        uses: peter-evans/create-or-update-comment@v2.0.0
        with:
          issue-number: ${{ github.event.number }}
          # Necessary to trigger support workflows
          token: ${{ secrets.BITNAMI_BOT_TOKEN }}
          body: |
            There has been an error during the automated release process. Manual revision is now required.
            Please check the related [action_run#${{ github.run_id }}](${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}) for more information.