---
name: CI

on:
  push:
    branches: ["main"]
  pull_request:
    branches: ["main"]
  workflow_dispatch:

jobs:
  tests:
    name: "Python ${{ matrix.python-version }}"
    runs-on: "ubuntu-latest"

    strategy:
      matrix:
        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "pypy-3.8"]

    steps:
      - uses: "actions/checkout@v3"

      - uses: "actions/setup-python@v4"
        with:
          python-version: "${{ matrix.python-version }}"
          allow-prereleases: true

      - name: "Run Tox"
        run: |
          set -xe
          python -VV
          python -Im site
          python -Im pip install --upgrade pip wheel
          python -Im pip install --upgrade pdm tox tox-gh-actions
          python -Im tox
      
      - name: "Upload coverage data"
        uses: "actions/upload-artifact@v3"
        with:
          name: "coverage-data"
          path: ".coverage.*"
          if-no-files-found: "ignore"

  coverage:
    name: "Combine & check coverage."
    needs: "tests"
    runs-on: "ubuntu-latest"

    steps:
      - uses: "actions/checkout@v3"
      
      - uses: "actions/setup-python@v4"
        with:
          cache: "pip"
          python-version: "3.11"

      - run: "python -Im pip install --upgrade coverage[toml]"

      - uses: "actions/download-artifact@v3"
        with:
          name: "coverage-data"

      - name: "Combine coverage"
        run: |
          python -Im coverage combine
          python -Im coverage html --skip-covered --skip-empty
          python -Im coverage json

          # Report and write to summary.
          python -Im coverage report | sed 's/^/    /' >> $GITHUB_STEP_SUMMARY

          export TOTAL=$(python -c "import json;print(json.load(open('coverage.json'))['totals']['percent_covered_display'])")
          echo "total=$TOTAL" >> $GITHUB_ENV

      - name: "Upload HTML report."
        uses: "actions/upload-artifact@v3"
        with:
          name: "html-report"
          path: "htmlcov"
      
      - name: "Update badge"
        if: github.ref == 'refs/heads/main'
        uses: "schneegans/dynamic-badges-action@v1.4.0"
        with:
          # GIST_TOKEN is a GitHub personal access token with scope "gist".
          auth: ${{ secrets.GIST_TOKEN }}
          gistID: 31981273f39dab936f0000563a30ce3f
          filename: covbadge.json
          label: Coverage
          message: ${{ env.total }}%
          minColorRange: 50
          maxColorRange: 90
          valColorRange: ${{ env.total }}

  package:
    name: "Build & verify package"
    runs-on: "ubuntu-latest"

    steps:
      - uses: "actions/checkout@v3"

      - uses: "actions/setup-python@v4"
        with:
          python-version: "3.11"

      - name: "Install tools"
        run: "python -m pip install twine check-wheel-contents build"

      - name: "Build package"
        run: "python -m build"

      - name: "List result"
        run: "ls -l dist"

      - name: "Check wheel contents"
        run: "check-wheel-contents dist/*.whl"

      - name: "Check long_description"
        run: "python -m twine check dist/*"
