name: PHP Composer

#whenever master has a PR or is pushed to
on:
  push:
    branches: [ master ]
  pull_request:
    branches: [ master ]

permissions:
  contents: read

jobs:
  run:
    runs-on: ubuntu-18.04
    strategy:
      #for each of the following versions of PHP, with and without --prefer-lowest
      matrix:
        php-versions: ['5.5', '5.6', '7.0', '7.1', '7.2', '7.3', '7.4']
        composer-options: ['', '--prefer-lowest']
    #set the name for each job
    name: PHP ${{ matrix.php-versions }} ${{ matrix.composer-options }}
    #set up environment variables used by unit tests
    env:
      AWS_ACCESS_KEY_ID: foo
      AWS_SECRET_ACCESS_KEY: bar
      AWS_CSM_ENABLED: false
    steps:
    #sets up the correct version of PHP with necessary config options
    - name: Setup PHP with Xdebug
      uses: shivammathur/setup-php@v2
      with:
        coverage: xdebug
        php-version: ${{ matrix.php-versions }}
        ini-values: xdebug.overload_var_dump=0, memory_limit=4G, phar.readonly=false

    #checkout the codebase from github
    - name: Checkout codebase
      uses: actions/checkout@v3

    #validate composer files
    - name: Validate composer.json and composer.lock
      run: composer validate

    #downgrade to supported php unit and remove incompatible xdebug file if it exists
    - if: ${{ matrix.php-versions == '5.5' }}
      name: PHP 5.5 specific setup
      run: |
        sudo rm -f /etc/php5/cli/conf.d/20-xdebug.ini
        composer require --dev --ignore-platform-reqs phpunit/phpunit "4.8.36"

    #downgrade to supported php unit
    - if: ${{ matrix.php-versions <= '7.1'  && matrix.php-versions > 5.5}}
      name: PHP 5.6-7.1 specific setup
      run: composer require --dev --ignore-platform-reqs phpunit/phpunit "^5.7.11"

    #get dependencies
    - name: Install dependencies
      run: composer update ${{ matrix.composer-options }} --no-interaction --prefer-source

    #run tests
    - name: Run test suite
      run: make test

    #static analysis
    - if: ${{ matrix.php-versions >= '7.1' && matrix.php-versions <= 7.4 && matrix.composer-options == '' }}
      name: Static analysis
      run: |
        composer require --dev nette/neon "^3.0"
        composer require --dev phpstan/phpstan "0.12.45"
        vendor/bin/phpstan analyse src

    #generate package
    - if:  ${{ matrix.composer-options == '' }}
      name: Package generation
      run: |
        composer require guzzlehttp/psr7 "^1.7.0"
        composer update
        make package

    #generate code coverage
    - if: ${{ matrix.php-versions == '7.1' && matrix.composer-options == '' }}
      name: Code coverage
      run: bash <(curl -s https://codecov.io/bash)