name: Pyodide Wheel (PyPI)

# Builds a PEP 783 `pyemscripten_*_wasm32` wheel for z3-solver using cibuildwheel
# and publishes it to PyPI on tag pushes. Unlike the legacy pyodide.yml (which
# uses `pyodide build` and produces a Pyodide-version-locked emscripten_* wheel
# uploaded only as a CI artifact), this wheel is installable at runtime with
# micropip from PyPI. See src/api/python/pyproject.toml [tool.cibuildwheel].

on:
  release:
    types: [created]
  workflow_dispatch:

permissions:
  contents: read

jobs:
  build-pyodide:
    runs-on: ubuntu-24.04
    steps:
      - uses: actions/checkout@v7

      - name: Build Pyodide wheel
        uses: pypa/cibuildwheel@v4.1.0
        with:
          # The Python bindings live in a subdirectory of the repo.
          package-dir: src/api/python
        env:
          CIBW_PLATFORM: pyodide
          # Exception/longjmp/bigint flags are declared in
          # src/api/python/pyproject.toml ([tool.pyodide.build]) and combined
          # with Pyodide's -fwasm-exceptions defaults. Don't set CFLAGS/CXXFLAGS
          # here — a JS-EH -fexceptions value conflicts with the wasm-EH ABI.

      - name: Store Pyodide wheel
        uses: actions/upload-artifact@v7
        with:
          name: pyodide-wheel
          path: wheelhouse/*.whl

  publish:
    name: Publish to PyPI
    runs-on: ubuntu-24.04
    if: startsWith(github.ref, 'refs/tags/')
    needs: [build-pyodide]
    environment: release
    permissions:
      id-token: write  # trusted publishing (OIDC), no API token needed
    steps:
      - name: Download Pyodide wheel
        uses: actions/download-artifact@v8
        with:
          name: pyodide-wheel
          path: dist/

      - name: Publish to PyPI
        uses: pypa/gh-action-pypi-publish@release/v1