name: "Demo"
on:
  pull_request:
  push:
    branches: [ "main" ]
jobs:
  # We're just checking if the demo start without hiccup.
  test:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        demo:
          - homeassistant#basic
          - homeassistant#ldap
          - nextcloud#basic
          - nextcloud#ldap
          - nextcloud#sso
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
      - name: Install Nix
        uses: DeterminateSystems/nix-installer-action@main
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          extra-conf: "system-features = nixos-test benchmark big-parallel kvm"
      - name: Setup Caching
        uses: cachix/cachix-action@v14
        with:
          name: selfhostblocks
          authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
      - name: Test demos
        # See https://blog.stefan-koch.name/2020/12/10/qemu-guest-graceful-shutdown-from-python for
        # inspiration.
        run: |
          set -x

          rm -f nixos.qcow2
          nix run nixpkgs#nixos-rebuild -- build-vm --flake ./demo/${{ matrix.demo }}
          QEMU_NET_OPTS="hostfwd=tcp::8080-:80" ./result/bin/run-nixos-vm -nographic -qmp unix:/tmp/qmp-sock,server,nowait &

          nix run nixpkgs#socat -- - unix-connect:/tmp/qmp-sock <<EOF
          {"execute": "qmp_capabilities"}
          {"execute": "system_powerdown"}
          EOF

  # Needed to get a status check for matrix jobs
  # From https://github.com/orgs/community/discussions/26822
  results:
    if: ${{ always() }}
    runs-on: ubuntu-latest
    name: Final Results
    needs: [ test ]
    steps:
      - run: exit 1
        # see https://stackoverflow.com/a/67532120/4907315
        if: >-
          ${{
               contains(needs.*.result, 'failure')
            || contains(needs.*.result, 'cancelled')
            || contains(needs.*.result, 'skipped')
          }}