name: Lint Notebooks (Pynblint)

on:
  pull_request:
    paths:
      - 'notebooks/**/*.ipynb'


permissions:
  contents: read


jobs:
  pynblint:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Install uv (for uvx)
        uses: astral-sh/setup-uv@v3

      - name: Cache uv
        uses: actions/cache@v4
        with:
          path: ~/.cache/uv
          key: uv-${{ runner.os }}-${{ hashFiles('pyproject.toml','uv.lock') }}
          restore-keys: |
            uv-${{ runner.os }}-

      - name: Run pynblint on notebooks directory
        id: pynblint
        run: |
          set -e
          echo "Running pynblint via uvx (isolated & pinned)..."
          uvx --from pynblint \
            --with "click<8.2" \
            --with "typer<0.12" \
            --with "lxml[html_clean]" \
            pynblint notebooks/ > pynblint_report.txt 2>&1 || true
          cat pynblint_report.txt

      - name: Check for violations
        run: |
          if grep -qiE "Traceback|ImportError|ModuleNotFoundError" pynblint_report.txt; then
            echo "❌ pynblint error."
            cat pynblint_report.txt
            exit 1
          elif grep -q "LINTING RESULTS" pynblint_report.txt; then
            echo "⚠️ Pynblint found violations in notebooks"
            echo "violations=true" >> $GITHUB_ENV
            cat pynblint_report.txt
            exit 1
          else
            echo "✅ No violations found"
            echo "violations=false" >> $GITHUB_ENV
          fi

      - name: Upload pynblint report
        if: always()
        uses: actions/upload-artifact@v4
        with:
          name: pynblint-report
          path: pynblint_report.txt
          retention-days: 30