name: Update manifest chart versions

on:
  schedule:
    - cron: "0 0 * * 1"  # Every Monday at midnight UTC
  workflow_dispatch:

jobs:
  update-manifests:
    runs-on: [bare-metal, nix-latest]
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Scan manifests for chart version updates
        run: |
          echo "TODO: implement manifest update scanning"
          echo ""
          echo "Planned implementation:"
          echo "  1. Parse each manifests/*/chart.yaml for HelmRelease chart versions"
          echo "  2. Query artifact hub or helm repo for latest versions"
          echo "  3. Emit a diff of available updates"
          echo ""
          echo "Scanned manifests directories:"
          ls manifests/

      - name: Create PR if changes found
        env:
          GITEA_TOKEN: ${{ secrets.KLAATU_TOKEN }}
          GITEA_URL: https://src.thehellings.com
          REPO: greg/nixos
        run: |
          if git diff --quiet; then
            echo "No manifest changes, nothing to do"
            exit 0
          fi

          BRANCH="auto/update-manifests-$(date +%Y%m%d)"
          git config user.email "klaatu@thehellings.com"
          git config user.name "klaatu"
          git checkout -b "$BRANCH"
          git add manifests/
          git commit -m "chore: update manifest chart versions $(date +%Y-%m-%d)"

          git remote set-url origin "https://klaatu:${GITEA_TOKEN}@${GITEA_URL#https://}/${REPO}.git"
          git push origin "$BRANCH"

          curl -s -X POST \
            -H "Authorization: token ${GITEA_TOKEN}" \
            -H "Content-Type: application/json" \
            "${GITEA_URL}/api/v1/repos/${REPO}/pulls" \
            -d "{
              \"title\": \"chore: update manifest chart versions $(date +%Y-%m-%d)\",
              \"head\": \"$BRANCH\",
              \"base\": \"main\",
              \"body\": \"Automated weekly manifest chart version update.\\n\\nGenerated by Gitea Actions.\",
              \"assignees\": [\"greg\"]
            }"