name: tests

on:
  push:
    branches:
    - master
    tags:
    - v*
  pull_request:
  workflow_dispatch:

jobs:
  run-tests:
    strategy:
      matrix:
        config:
        # [Python version, tox env]
        - ["3.7",   "py37",  "Europe/Berlin"]
        - ["3.8",   "py38",  "Australia/Sydney"]
        - ["3.9",   "py39",  "UTC"]
        - ["3.10",  "py310", "Asia/Singapore"]

    runs-on: ubuntu-latest
    name: ${{ matrix.config[1] }}
    steps:
    - uses: actions/checkout@v2
    - name: Set up Python
      uses: actions/setup-python@v2
      with:
        python-version: ${{ matrix.config[0] }}
    - name: Pip cache
      uses: actions/cache@v2
      with:
        path: ~/.cache/pip
        key: ${{ runner.os }}-pip-${{ matrix.config[0] }}-${{ hashFiles('setup.*', 'tox.ini') }}
        restore-keys: |
          ${{ runner.os }}-pip-${{ matrix.config[0] }}-
          ${{ runner.os }}-pip-
    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        pip install tox
    - name: Test
      run: |
        export TZ="{{ matrix.config[2] }}"
        # Debug and check the default time zone
        python3 -c 'import time; time.tzset(); print(time.strftime("%X %x %Z"))'
        test/test_code_quality.sh
        tox -e ${{ matrix.config[1] }}

  deploy-tag-to-pypi:
    # only deploy on tags, see https://stackoverflow.com/a/58478262/1320237
    if: startsWith(github.ref, 'refs/tags/v')
    needs:
    - run-tests
    runs-on: ubuntu-latest
    # This environment stores the TWINE_USERNAME and TWINE_PASSWORD
    # see https://docs.github.com/en/actions/deployment/targeting-different-environments/using-environments-for-deployment
    environment:
      name: PyPI
      url: https://pypi.org/project/recurring-ical-events/
    # after using the environment, we need to make the secrets available
    # see https://docs.github.com/en/actions/security-guides/encrypted-secrets#example-using-bash
    env:
      TWINE_USERNAME: ${{ secrets.TWINE_USERNAME }}
      TWINE_PASSWORD: ${{ secrets.TWINE_PASSWORD }}
    steps:
    - uses: actions/checkout@v2
    - name: Set up Python
      uses: actions/setup-python@v2
      with:
        python-version: "3.9"
    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        pip install wheel twine
    - name: Check the tag
      run: |
        PACKAGE_VERSION=`python setup.py --version`
        TAG_NAME=v$PACKAGE_VERSION
        echo "Package version $PACKAGE_VERSION with possible tag name $TAG_NAME on $GITHUB_REF_NAME"
        # test that the tag represents the version
        # see https://docs.gitlab.com/ee/ci/variables/predefined_variables.html
        # see https://docs.github.com/en/actions/learn-github-actions/environment-variables
        if [ "$TAG_NAME" != "$GITHUB_REF_NAME" ]; then
          echo "ERROR: This tag is for the wrong version. Got \"$GITHUB_REF_NAME\" expected \"$TAG_NAME\"."
          exit 1
        fi
    - name: remove old files
      run: rm -rf dist/*
    - name: build distribution files
      run: python setup.py bdist_wheel sdist
    - name: deploy to pypi
      run: |
        # You will have to set the variables TWINE_USERNAME and TWINE_PASSWORD
        # You can use a token specific to your project by setting the user name to 
        # __token__ and the password to the token given to you by the PyPI project.
        # sources:
        #   - https://shambu2k.hashnode.dev/gitlab-to-pypi
        #   - http://blog.octomy.org/2020/11/deploying-python-pacakges-to-pypi-using.html?m=1
        # Also, set the tags as protected to allow the secrets to be used.
        # see https://docs.gitlab.com/ee/user/project/protected_tags.html
        if [ -z "$TWINE_USERNAME" ]; then
          echo "WARNING: TWINE_USERNAME not set!"
        fi
        if [ -z "$TWINE_PASSWORD" ]; then
          echo "WARNING: TWINE_PASSWORD not set!"
        fi
        twine check dist/*
        twine upload dist/*
