# Publish chart to the GitHub Container Registry (GHCR) on push to master
# Run the following tests on PRs:
# - Check if chart's documentation is up to date
# - Check chart linting
# - Check chart installation in a Kind cluster
# - Check chart packaging

name: Chart

on:
  pull_request:
    branches: [master]
    paths: [deploy/helm]
  push:
    branches: [master]
    paths: [deploy/helm]

jobs:
  lint-test:
    runs-on: ubuntu-latest
    if: ${{ github.event_name == 'pull_request' }}
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      # ct lint requires Python 3.x to run following packages:
      #  - yamale (https://github.com/23andMe/Yamale)
      #  - yamllint (https://github.com/adrienverge/yamllint)
      - uses: actions/setup-python@v4
        with:
          python-version: '3.x'

      - uses: helm/chart-testing-action@v2

      - name: Run chart-testing (lint)
        run: ct lint --config ct.yaml

      - name: Check docs
        run: |
          docker run --rm --volume "${PWD}/deploy:/helm-docs" -u "$(id -u)" jnorwood/helm-docs
          if ! git diff --exit-code; then
            echo "error::Documentation is not up to date. Please run helm-docs and commit changes."
            exit 1
          fi

      - uses: helm/kind-action@v1

      - name: Run chart-testing (install)
        run: ct install --config ct.yaml

      - name: Run helm package charts
        run: |
          for chart in $(ct list-changed --config ct.yaml); do
            helm package $chart -d out
          done

  publish:
    runs-on: ubuntu-latest
    if: ${{ github.event_name == 'push' }}
    permissions:
      packages: write
    steps:
      - uses: actions/checkout@v4

      - uses: docker/login-action@v1
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - uses: helm/chart-testing-action@v2
      - name: Run helm package charts
        run: |
          for chart in $(ct list-changed --config ct.yaml); do
            helm package $chart -d out
          done

      - name: Push chart to GHCR
        working-directory: out
        run: |
          for pkg in $(ls *.tgz); do
            helm push $pkg oci://ghcr.io/${{ github.repository_owner }}/charts
          done