name: Publish to PyPI

on:
  # manually trigger the workflow
  workflow_dispatch:

jobs:
  build:
    name: Build Distribution
    runs-on: ubuntu-latest
    outputs:
      TAG: ${{ steps.get_tag.outputs.TAG }}

    steps:
      - uses: actions/checkout@v4
      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: "3.x"
      - name: Install pypa/build
        run: >-
          python3 -m pip install build --user
      - name: Build a binary wheel and a source tarball
        run: python3 -m build
      - name: Store the distribution packages
        uses: actions/upload-artifact@v4
        with:
          name: python-package-distributions
          path: dist/
      - name: Get Tag Name
        id: get_tag
        run: |
          pip install .
          TAG=$(python -c "from telegram import __version__; print(f'v{__version__}')")
          echo "TAG=$TAG" >> $GITHUB_OUTPUT

  publish-to-pypi:
    name: Publish to PyPI
    needs:
      - build
    runs-on: ubuntu-latest
    environment:
      name: release_pypi
      url: https://pypi.org/p/python-telegram-bot
    permissions:
      id-token: write  # IMPORTANT: mandatory for trusted publishing

    steps:
      - name: Download all the dists
        uses: actions/download-artifact@v4
        with:
          name: python-package-distributions
          path: dist/
      - name: Publish to PyPI
        uses: pypa/gh-action-pypi-publish@release/v1

  compute-signatures:
    name: Compute SHA1 Sums and Sign with Sigstore
    runs-on: ubuntu-latest
    needs:
      - publish-to-pypi

    permissions:
      id-token: write  # IMPORTANT: mandatory for sigstore

    steps:
      - name: Download all the dists
        uses: actions/download-artifact@v4
        with:
          name: python-package-distributions
          path: dist/
      - name: Compute SHA1 Sums
        run: |
          # Compute SHA1 sum of the distribution packages and save it to a file with the same name,
          # but with .sha1 extension
          for file in dist/*; do
              sha1sum $file > $file.sha1
          done
      - name: Sign the dists with Sigstore
        uses: sigstore/gh-action-sigstore-python@v3.0.0
        with:
          inputs: >-
            ./dist/*.tar.gz
            ./dist/*.whl
      - name: Store the distribution packages and signatures
        uses: actions/upload-artifact@v4
        with:
          name: python-package-distributions-and-signatures
          path: dist/

  github-release:
    name: Upload to GitHub Release
    needs:
      - build
      - compute-signatures

    runs-on: ubuntu-latest

    permissions:
      contents: write  # IMPORTANT: mandatory for making GitHub Releases

    steps:
      - name: Download all the dists
        uses: actions/download-artifact@v4
        with:
          name: python-package-distributions-and-signatures
          path: dist/
      - name: Create GitHub Release
        env:
          GITHUB_TOKEN: ${{ github.token }}
          TAG: ${{ needs.build.outputs.TAG }}
        # Create a tag and a GitHub Release. The description can be changed later, as for now
        # we don't define it through this workflow.
        run: >-
          gh release create
          '${{ env.TAG }}'
          --repo '${{ github.repository }}'
          --generate-notes
      - name: Upload artifact signatures to GitHub Release
        env:
          GITHUB_TOKEN: ${{ github.token }}
          TAG: ${{ needs.build.outputs.TAG }}
        # Upload to GitHub Release using the `gh` CLI.
        # `dist/` contains the built packages, and the
        # sigstore-produced signatures and certificates.
        run: >-
          gh release upload
          '${{ env.TAG }}' dist/**
          --repo '${{ github.repository }}'