name: Sync Nix module options

on:
  push:
    branches: [main]
    paths:
      - nix/hm-modules.nix
      - nix/nixos-modules.nix
      - nix/generate-options.nix
      - flake.nix
      - flake.lock

concurrency:
  group: sync-nix-options
  cancel-in-progress: true

jobs:
  sync-nix-options:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 1

      - uses: cachix/install-nix-action@v30
        with:
          extra_nix_config: |
            experimental-features = nix-command flakes

      - name: Build options JSONs
        run: |
          HM_OUT=$(nix build .#hm-options-json --no-link --print-out-paths)
          NIXOS_OUT=$(nix build .#nixos-options-json --no-link --print-out-paths)
          cp "$HM_OUT/share/doc/nixos/options.json" /tmp/hm-options.json
          cp "$NIXOS_OUT/share/doc/nixos/options.json" /tmp/nixos-options.json

      - name: Checkout website
        uses: actions/checkout@v4
        with:
          repository: mangowm/mangowm.github.io
          path: website
          token: ${{ secrets.WEBSITE_SYNC_TOKEN }}
          fetch-depth: 1

      - name: Copy JSONs to website
        run: |
          cp /tmp/hm-options.json website/apps/web/src/hm-options.json
          cp /tmp/nixos-options.json website/apps/web/src/nixos-options.json

      - name: Commit and push
        working-directory: website
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git add apps/web/src/hm-options.json apps/web/src/nixos-options.json
          git diff --staged --quiet || git commit \
            -m "nix: update module options JSON" \
            -m "${{ github.server_url }}/${{ github.repository }}/commit/${{ github.sha }}"
          git push