version: 2
jobs:
  build_deploy:
    docker:
      - image: circleci/node:latest

    working_directory: ~/repo

    steps:
      - checkout

      # Download and cache dependencies
      - restore_cache:
          keys:
          - v1-dependencies-{{ checksum "package.json" }}
          # fallback to using the latest cache if no exact match is found
          - v1-dependencies-

      - run: yarn install

      - save_cache:
          paths:
            - node_modules
          key: v1-dependencies-{{ checksum "package.json" }}

      - run:
          name: Run tests
          command: yarn test

      - store_artifacts:
          path: coverage

      - run:
          name: Build site
          command: yarn build

      - store_artifacts:
          path: build

      - run:
          name: Deploy to S3
          command: |
            sudo apt-get -y -qq install awscli
            aws s3 sync build s3://$DEPLOY_BUCKET/ --delete

workflows:
  version: 2
  preview:
    jobs:
      - build_deploy:
          context: preview-context
          filters:
            tags:
              ignore: /.*/
            branches:
              only: /.*/
  prod:
    jobs:
      - build_deploy:
          context: prod-context
          filters:
            tags:
              only: /.*/
            branches:
              ignore: /.*/