name: Publish cloudflare-ddns Helm chart

on:
  push:
    branches:
      - master
    tags:
      - "v*"
  pull_request:
    branches:
      - master

permissions:
  contents: read
  packages: write

jobs:
  publish:
    name: publish
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v7

      - name: Install Helm
        uses: azure/setup-helm@v5

      - name: Lint chart
        run: helm lint charts/cloudflare-ddns

      - name: Package chart
        run: |
          mkdir -p /tmp/helm-charts
          helm package charts/cloudflare-ddns --destination /tmp/helm-charts

      - name: Extract chart version
        id: chart_version
        run: |
          VERSION=$(grep '^version:' charts/cloudflare-ddns/Chart.yaml | awk '{print $2}')
          echo "version=${VERSION}" >> "$GITHUB_OUTPUT"

      - name: Login to GHCR
        if: github.event_name != 'pull_request'
        run: |
          echo "${{ secrets.GITHUB_TOKEN }}" | helm registry login ghcr.io \
            --username "${{ github.actor }}" \
            --password-stdin

      - name: Push chart to GHCR
        if: github.event_name != 'pull_request'
        run: |
          helm push /tmp/helm-charts/cloudflare-ddns-${{ steps.chart_version.outputs.version }}.tgz \
            oci://ghcr.io/${{ github.repository_owner }}