name: quality

on:
  pull_request:
    branches: [main]
  push:
    branches: [main]

jobs:
  changes:
    runs-on: ubuntu-latest
    outputs:
      nix: ${{ steps.changes.outputs.nix }}
    steps:
      - uses: actions/checkout@v4
      - uses: dorny/paths-filter@v3
        id: changes
        with:
          filters: |
            nix:
              - '**/*.nix'
              - 'flake.lock'
              - 'flake.nix'

  nix-format:
    name: Nix Format Check
    runs-on: ubuntu-latest
    needs: changes
    if: ${{ needs.changes.outputs.nix == 'true' }}
    steps:
      - uses: actions/checkout@v4
      - uses: cachix/install-nix-action@v31
      - run: nix fmt -- --ci

  deadnix:
    name: Deadnix Check
    runs-on: ubuntu-latest
    needs: changes
    if: ${{ needs.changes.outputs.nix == 'true' }}
    steps:
      - uses: actions/checkout@v4
      - uses: cachix/install-nix-action@v31
      - run: nix develop --command deadnix --fail .

  statix:
    name: Statix Check
    runs-on: ubuntu-latest
    needs: changes
    if: ${{ needs.changes.outputs.nix == 'true' }}
    steps:
      - uses: actions/checkout@v4
      - uses: cachix/install-nix-action@v31
      - run: nix develop --command statix check .