name: Test latest PyTorch nightly / release candidate
on:
  push:
    branches: [ main ]
    paths:
      - '**/*.py'    # Run workflow for changes in Python files
      - '**/*.ipynb'
      - '**/*.yaml'
      - '**/*.yml'
      - '**/*.sh'
  pull_request:
    branches: [ main ]
    paths:
      - '**/*.py'
      - '**/*.ipynb'
      - '**/*.yaml'
      - '**/*.yml'
      - '**/*.sh'

jobs:
  test:
    runs-on: ubuntu-latest

    steps:
    - uses: actions/checkout@v6

    - name: Set up Python
      uses: actions/setup-python@v6
      with:
        python-version: "3.13"

    - name: Install dependencies
      run: |
        curl -LsSf https://astral.sh/uv/install.sh | sh
        uv sync --dev  # tests for backwards compatibility
        uv add pytest-ruff nbval
        uv pip install --pre torch torchvision torchaudio --index-url https://download.pytorch.org/whl/nightly/cpu

    - name: Test Selected Python Scripts
      run: |
        source .venv/bin/activate
        pytest setup/02_installing-python-libraries/tests.py
        pytest ch04/01_main-chapter-code/tests.py
        pytest ch05/01_main-chapter-code/tests.py
        pytest ch06/01_main-chapter-code/tests.py

    - name: Validate Selected Jupyter Notebooks
      run: |
        source .venv/bin/activate
        pytest --nbval ch02/01_main-chapter-code/dataloader.ipynb
        pytest --nbval ch03/01_main-chapter-code/multihead-attention.ipynb
        pytest --nbval ch02/04_bonus_dataloader-intuition/dataloader-intuition.ipynb
