name: Check flake
on:
  push:
    branches: [main]
    path:
      - ./**.nix
      - ./flake.lock
  pull_request:

jobs:
  check:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses:  DeterminateSystems/nix-installer-action@v13
        with:
          source-url: "https://install.lix.systems/lix/lix-installer-x86_64-linux"
      - uses: DeterminateSystems/magic-nix-cache-action@v7
      - name: Run `nix flake check`
        run: |
          nix flake check --verbose --keep-going
          nix run nixpkgs#statix -- check .
  build-docs:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: DeterminateSystems/magic-nix-cache-action@v7
      - uses:  DeterminateSystems/nix-installer-action@v13
        with:
          source-url: "https://install.lix.systems/lix/lix-installer-x86_64-linux"
      - name: Build documentation
        run: nix build .#docs --print-build-logs
      - name: Upload artifact
        uses: actions/upload-pages-artifact@v3
        with:
          path: ./result
  deploy-docs:
    runs-on: ubuntu-latest
    needs: build-docs
    if: ${{ github.event_name == 'push' }} # only run on main branch
    permissions:
      pages: write
      id-token: write
    environment:
      name: github-pages
      url: ${{ steps.deployment.outputs.page_url }}
    steps:
      - name: Deploy to GitHub Pages
        id: deployment
        uses: actions/deploy-pages@v4