name: "Charts: Release"

concurrency: helm-release

on:
  workflow_dispatch:
  push:
    branches:
      - main
    paths:
      - "charts/**"

jobs:
  release-charts:
    runs-on: ubuntu-22.04
    steps:
      - name: Get k8s-at-home token
        id: get-app-token
        uses: getsentry/action-github-app-token@v1
        with:
          app_id: ${{ secrets.BJWS_APP_ID }}
          private_key: ${{ secrets.BJWS_APP_PRIVATE_KEY }}

      - name: Checkout charts branch
        uses: actions/checkout@v3
        with:
          token: ${{ steps.get-app-token.outputs.token }}
          path: 'src'
          fetch-depth: 0

      - name: Checkout gh-pages branch
        uses: actions/checkout@v3
        with:
          token: ${{ steps.get-app-token.outputs.token }}
          path: 'dest'
          ref: 'gh-pages'
          fetch-depth: 0

      - name: Install Helm
        uses: Azure/setup-helm@v3.3

      - name: Package Helm Charts
        shell: bash
        env:
          SRC_DIR: "src/charts"
          DEST_DIR: "dest"
        run: |
          CHARTS=$(find "$SRC_DIR" -type f -name 'Chart.yaml' | sed -r 's|/[^/]+$||' | sort | uniq)

          for CHART in $CHARTS ; do
            mapfile -t CHART_PATH_PARTS < <(echo "$CHART" | tr '/' '\n')
            CHART_TYPE=${CHART_PATH_PARTS[2]}

            helm dep up "$CHART"
            helm package "$CHART" -u -d "$DEST_DIR/$CHART_TYPE"
          done

      - name: Create new index
        shell: bash
        working-directory: dest
        run: |
          helm repo index . --url https://bjw-s.github.io/helm-charts/

      - name: Push changes
        shell: bash
        working-directory: dest
        run: |
          git config user.name "bjw-s-bot[bot]"
          git config user.email "bjw-s-bot <87358111+bjw-s-bot[bot]@users.noreply.github.com>"
          git add $(git ls-files -o --exclude-standard)
          git add index.yaml
          git commit -m "Updated from ref: $GITHUB_SHA"
          git push