defaults: &defaults
  steps:
    - checkout
    - run:
        name: Checkout submodule
        command: |
            git submodule sync
            git submodule update --init --recursive

    - restore_cache:
        keys:
          - npm-deps-{{ checksum "package.json" }}
          - npm-deps-
    - run:
        name: Install npm dependencies
        command: npm install
    - save_cache:
        key: npm-deps-{{ checksum "package.json" }}
        paths:
          - node_modules

    - run:
        name: Verify screenshots and generate diff
        command: node dockers/Screenshotter/screenshotter.js --seleniumIP localhost -b $CIRCLE_JOB --verify --diff
    - run:
        name: Generate new screenshots
        when: always
        command: |
            rm -rf test/screenshotter/images/*
            node dockers/Screenshotter/screenshotter.js --seleniumIP localhost -b $CIRCLE_JOB

    - store_artifacts:
        path: test/screenshotter/images
        destination: image
    - store_artifacts:
        path: test/screenshotter/diff
        destination: diff

version: 2
jobs:
  firefox:
    docker:
      - image: circleci/node:6
      - image: selenium/standalone-firefox:2.48.2
    <<: *defaults
  chrome:
    docker:
      - image: circleci/node:6
      - image: selenium/standalone-chrome:2.48.2
    <<: *defaults

workflows:
  version: 2
  screenshotter:
    jobs:
      - firefox
      - chrome