name: Publish to PyPI

on:
  push:
    tags:
      - "v*"

jobs:
  publish:
    name: Build and publish
    runs-on: ubuntu-latest

    environment:
      name: pypi
      url: https://pypi.org/project/${{ github.event.repository.name }}/

    steps:
      - uses: actions/checkout@v3

      - name: Ensure this is main branch
        if: github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/tags/v')
        run: echo "Proceeding with publish"

      - uses: actions/setup-python@v5
        with:
          python-version: "3.11"

      - name: Install build tools
        run: python -m pip install --upgrade build twine

      - name: Build package
        run: python -m build

      - name: Publish to PyPI
        env:
          TWINE_USERNAME: __token__
          TWINE_PASSWORD: ${{ secrets.PYPI_API_TOKEN }}
        
        run: python -m twine upload dist/*