version: 2

workflows:
  version: 2
  test:
    jobs:
      - test-code-quality
      - test-5.6
      - test-7.0
      - test-7.1
      - test-7.2

jobs:
  test-5.6: &test-template
    docker:
      - image: php:5.6-alpine

    working_directory: ~/repo

    steps:
      - checkout
      - run:
          name: Install Composer
          command: |
            curl -sS https://getcomposer.org/installer | php
            mv composer.phar /usr/local/bin/composer

      - run:
          name: Install Dependencies
          command: composer install -n --prefer-dist

      - run:
          name: PSR-2 Compliance
          command: |
            vendor/bin/phpcs --config-set ignore_warnings_on_exit 1
            vendor/bin/phpcs src/ --standard=PSR2
            vendor/bin/phpcs tests/ --standard=PSR2

      - run:
          name: Unit Tests
          command: vendor/bin/phpunit

  test-7.0:
    <<: *test-template
    docker:
      - image: php:7.0-alpine

  test-7.1:
    <<: *test-template
    docker:
      - image: php:7.1-alpine

  test-7.2:
    <<: *test-template
    docker:
      - image: php:7.2-alpine

  test-code-quality:
    machine:
      enabled: true
    steps:
      - checkout
      - run:
          name: 'Up and running php7'
          command: 'docker-compose up'
      - run:
          name: 'Install dependencies'
          command: 'docker-compose run php7 composer install -n --prefer-dist'
      - run:
          name: 'Finding for obvious and hard-to-spot bugs with Psalm PHP'
          command: 'docker-compose run php7 psalm'