name: "Charts: Update README"

on:
  workflow_call:
    inputs:
      modifiedCharts:
        required: true
        type: string
      isRenovatePR:
        required: true
        type: string
    outputs:
      commitHash:
        description: "The most recent commit hash at the end of this workflow"
        value: ${{ jobs.generate-changelog.outputs.commitHash }}

jobs:
  validate-changelog:
    name: Validate changelog
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v3
        with:
          fetch-depth: 0

      - name: Check changelog annotations
        if: inputs.isRenovatePR != 'true'
        run: |
          CHARTS=(${{ inputs.modifiedCharts }})
          for i in "${CHARTS[@]}"
          do
              IFS='/' read -r -a chart_parts <<< "$i"
              ./.github/scripts/check-releasenotes.sh "charts/${chart_parts[0]}/${chart_parts[1]}"
              echo ""
          done

  generate-changelog:
    name: Generate changelog annotations
    runs-on: ubuntu-latest
    needs:
      - validate-changelog
    outputs:
      commitHash: ${{ steps.save-commit-hash.outputs.commit_hash }}
    steps:
      - name: Checkout
        uses: actions/checkout@v3
        with:
          fetch-depth: 0

      - name: Setup Python
        uses: actions/setup-python@v4
        with:
          python-version: "3.10"

      - name: Annotate Charts.yaml for Renovate PR's
        if: inputs.isRenovatePR == 'true'
        env:
          CHECK_BRANCH: "origin/${{ github.event.repository.default_branch }}"
        run: |
          pip install -r ./.github/scripts/requirements.txt
          ./.github/scripts/renovate-releasenotes.py --check-branch "$CHECK_BRANCH" ${{ inputs.modifiedCharts }}

      - name: Create commit
        id: create-commit
        if: inputs.isRenovatePR == 'true'
        uses: stefanzweifel/git-auto-commit-action@v4
        with:
          file_pattern: charts/**/
          commit_message: "chore: Auto-update chart metadata"
          commit_user_name: ${{ github.actor }}
          commit_user_email: ${{ github.actor }}@users.noreply.github.com

      - name: Save commit hash
        id: save-commit-hash
        run: |
          if [ "${{ steps.create-commit.outputs.changes_detected || 'unknown' }}" == "true" ]; then
            echo '::set-output name=commit_hash::${{ steps.create-commit.outputs.commit_hash }}'
          else
            echo "::set-output name=commit_hash::${GITHUB_SHA}"
          fi