jobs: 
  build: &shared-config
    docker: 
      - image: circleci/node:lts-fermium
    working_directory: ~/repo
    steps:
      - checkout
      - restore_cache:
          keys:
            - dependencies-{{ checksum "package.json" }}-v1
            - dependencies-
      - run: yarn install
      - save_cache:
          paths:
            - node_modules
          key: dependencies-{{ checksum "package.json" }}-v1
          
  test_unit:
    <<: *shared-config
    steps:
      - checkout
      - restore_cache:
          key: dependencies-{{ checksum "package.json" }}-v1
      - run:
          command: yarn test
          environment:
            DATABASE_URL: postgres://psqluer:psqlpassword@localhost:5432/psqluer
  end_to_end: 
    docker:
      - image: circleci/node:lts-fermium
      - image: circleci/postgres:9.6.5
        environment:
          POSTGRES_DB: $PG_DB
          POSTGRES_USER: $PG_USER
          POSTGRES_PASSWORD: $PG_PASS
    working_directory: ~/repo
    steps:
      - checkout
      - restore_cache:
          key: dependencies-{{ checksum "package.json" }}-v1
      - run:
          command: yarn test:e2e
          environment:
            DATABASE_URL: $DATABASE_URL
  lint:
    <<: *shared-config
    steps:
      - checkout
      - restore_cache:
          key: dependencies-{{ checksum "package.json" }}-v1
      - run: yarn lint
      - run: yarn format:check
  
  heroku_deploy: 
    docker: 
      - image: buildpack-deps:trusty
    steps:
      - checkout
      - run:
          name: Heroku Deploy
          command: git push https://heroku:$HEROKU_API_KEY@git.heroku.com/$HEROKU_APP_NAME.git HEAD:main 
      - run:
          name: Smoke Test
          command: |
            HTTPCODE=`curl -s -o /dev/null -w "%{http_code}" https://$HEROKU_APP_NAME.herokuapp.com/`
            if [ "$HTTPCODE" -ne 200 ];then
                echo "heroku app not responding, failing deploy"
                exit 1
            fi

version: 2
workflows: 
  my_workflow: 
    jobs: 
      - build
      - test_unit
      - end_to_end: 
          requires: 
            - build
      - lint: 
          requires: 
            - build
      - heroku_deploy: 
          requires: 
            - build
            - test_unit
            - end_to_end
            - lint
  version: 2