---
# SPDX-FileCopyrightText: 2026 The Linux Foundation
# SPDX-License-Identifier: Apache-2.0

name: PyPI Publish
description: "Build and publish Python packages to PyPI on SemVer release tags"

inputs:
  pypi-index:
    description: "PyPI repository name to publish to"
    required: false
    default: "pypi"
  pypi-username:
    description: "PyPI username"
    required: true
  pypi-password:
    description: "PyPI password or API token"
    required: true
  module-dirs:
    description: "Pipe-separated list of directories containing Python modules to publish"
    required: false
    default: "."
  prep-commands:
    description: "Commands to run before building"
    required: false
    default: ""

runs:
  using: "composite"
  steps:
    - name: Get and verify SemVer release tag
      id: tag-check
      shell: bash
      run: |
        set -eu -o pipefail
        TAG=$(git tag --points-at HEAD | head -n1 || true)
        if [ -z "$TAG" ]; then
          echo "No git tag on HEAD, skipping publish"
          echo "is-release=false" >> "$GITHUB_OUTPUT"
          exit 0
        fi
        # Match vX.Y.Z or X.Y.Z (SemVer release, no pre-release suffix)
        if [[ "$TAG" =~ ^v?[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
          echo "Found SemVer release tag: $TAG"
          echo "is-release=true" >> "$GITHUB_OUTPUT"
          echo "tag=$TAG" >> "$GITHUB_OUTPUT"
        else
          echo "Tag '$TAG' is not a SemVer release version, skipping publish"
          echo "is-release=false" >> "$GITHUB_OUTPUT"
        fi

    - name: Run prep commands
      if: steps.tag-check.outputs.is-release == 'true' && inputs.prep-commands != ''
      shell: bash
      run: |
        set -eu -o pipefail
        echo "Running prep commands..."
        ${{ inputs.prep-commands }}

    - name: Build and publish packages
      if: steps.tag-check.outputs.is-release == 'true'
      shell: bash
      env:
        TWINE_USERNAME: ${{ inputs.pypi-username }}
        TWINE_PASSWORD: ${{ inputs.pypi-password }}
      run: |
        set -eu -o pipefail

        echo "Installing build dependencies..."
        pip install --upgrade pip setuptools wheel twine build

        IFS='|' read -ra DIRS <<< "${{ inputs.module-dirs }}"
        for dir in "${DIRS[@]}"; do
          dir=$(echo "$dir" | xargs)  # trim whitespace
          echo "::group::Publishing module in: $dir"

          if [ ! -f "$dir/setup.py" ]; then
            echo "ERROR: setup.py not found in $dir"
            exit 1
          fi

          echo "Building source distribution..."
          cd "$dir"
          python3 -m build

          echo "Uploading to PyPI repository: ${{ inputs.pypi-index }}"
          twine upload -r "${{ inputs.pypi-index }}" dist/*

          cd "$GITHUB_WORKSPACE"
          echo "::endgroup::"
        done