name: Publish helm chart to artifacthub

on:
  workflow_run:
    workflows: ["Build and Release"]
    types: [completed]

env:
  new_version: ${{ github.event.workflow_run.head_branch }}

jobs:
  build-helm-package:
    runs-on: ubuntu-latest
    # Only run on successful builds triggered by tag pushes (version format: x.y.z or x.y.z-suffix)
    if: |
      github.event.workflow_run.conclusion == 'success' && 
      github.event.workflow_run.event == 'push' &&
      contains(github.event.workflow_run.head_branch, '.')

    steps:
      - name: Checkout helm chart repo
        uses: actions/checkout@v2

      - name: Replace chart appversion
        run: |
          set -e
          set -x
          old_version=$(grep "^appVersion:" helm/rustfs/Chart.yaml | awk '{print $2}')
          sed -i "s/$old_version/$new_version/g" helm/rustfs/Chart.yaml
          sed  -i "/^image:/,/^[^ ]/ s/tag:.*/tag: "$new_version"/" helm/rustfs/values.yaml

      - name: Set up Helm
        uses: azure/setup-helm@v4.3.0

      - name: Package Helm Chart
        run: |
          cp helm/README.md helm/rustfs/
          package_version=$(echo $new_version | awk -F '-' '{print $2}' | awk -F '.' '{print $NF}') 
          helm package ./helm/rustfs --destination helm/rustfs/ --version "0.0.$package_version"
        
      - name: Upload helm package as artifact
        uses: actions/upload-artifact@v4
        with:
          name: helm-package
          path: helm/rustfs/*.tgz
          retention-days: 1

  publish-helm-package:
    runs-on: ubuntu-latest
    needs: [build-helm-package]

    steps:
      - name: Checkout helm package repo
        uses: actions/checkout@v2
        with:
          repository: rustfs/helm 
          token: ${{ secrets.RUSTFS_HELM_PACKAGE }}
      
      - name: Download helm package
        uses: actions/download-artifact@v4
        with:
          name: helm-package
          path: ./
          
      - name: Set up helm
        uses: azure/setup-helm@v4.3.0
        
      - name: Generate index
        run: helm repo index . --url https://charts.rustfs.com

      - name: Push helm package and index file
        run: |
          git config --global user.name "${{ secrets.USERNAME }}"
          git config --global user.email "${{ secrets.EMAIL_ADDRESS }}"
          git status .
          git add .
          git commit -m "Update rustfs helm package with $new_version."
          git push origin main