name: Release Helm chart

on:
  push:
    tags:
      - "chart-v*"

permissions:
  contents: write

jobs:
  release-helm-chart:
    name: Release Helm chart
    runs-on: ubuntu-latest

    steps:
      - name: Check out code
        uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
        with:
          fetch-depth: 0

      - name: Create release
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          tag: ${{ github.ref_name }}
        run: |
          # Mark prerelease chart versions (e.g. chart-v3.0.0-beta.1) so they
          # don't show up as the repo's latest release.
          prerelease=""
          case "${tag#chart-v}" in *-*) prerelease="--prerelease" ;; esac
          gh release create "$tag" \
              --repo="$GITHUB_REPOSITORY" \
              --title="Helm chart reloader ${tag#chart-v}" \
              $prerelease \
              --generate-notes

      - name: Notify Slack
        uses: 8398a7/action-slack@77eaa4f1c608a7d68b38af4e3f739dcd8cba273e # v3
        if: always()
        with:
          status: ${{ job.status }}
          fields: repo,author,action,eventName,ref,workflow
        env:
          SLACK_WEBHOOK_URL: ${{ secrets.STAKATER_DELIVERY_SLACK_WEBHOOK }}