name: "Continuous Integration"

on:
  - push
  - pull_request

env:
  COMPOSER_FLAGS: "--ansi --no-interaction --no-progress --prefer-dist"

jobs:
  tests:
    name: "CI"

    runs-on: ubuntu-latest

    strategy:
      matrix:
        php-version:
          - "5.3"
          - "5.4"
          - "5.5"
          - "5.6"
          - "7.0"
          - "7.1"
          - "7.2"
          - "7.3"
          - "7.4"
          # disabled for monolog 1.x as not worth the trouble, people should use monolog 2 anyway
          # - "8.0"
          # disabled for now as it leads to PHPUnit installing in a very old 4.3 version due to phpspec/prophecy not allowing 8.1
          # - "8.1"

    steps:
      - name: "Checkout"
        uses: "actions/checkout@v2"

      - name: "Install PHP 5"
        if: "startsWith(matrix.php-version, '5.')"
        uses: "shivammathur/setup-php@v2"
        with:
          coverage: "none"
          php-version: "${{ matrix.php-version }}"
          extensions: "mongo"

      - name: "Install PHP 7+"
        if: "!startsWith(matrix.php-version, '5.')"
        uses: "shivammathur/setup-php@v2"
        with:
          coverage: "none"
          php-version: "${{ matrix.php-version }}"

      - name: Get composer cache directory
        id: composercache
        run: echo "::set-output name=dir::$(composer config cache-files-dir)"

      - name: Cache dependencies
        uses: actions/cache@v2
        with:
          path: ${{ steps.composercache.outputs.dir }}
          key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.json') }}
          restore-keys: ${{ runner.os }}-composer-

      - name: "Install latest dependencies"
        run: |
          # Remove PHPStan as it requires a newer PHP
          composer remove phpstan/phpstan --dev --no-update
          composer update ${{ env.COMPOSER_FLAGS }}

      - name: "Run tests"
        run: "composer test"