version: 2.1
jobs:
  build:
    docker:
      - image: circleci/node:14

    working_directory: ~/repo

    steps:
      - checkout
      - restore_cache:
          keys:
            - v1-dependencies-js-{{ checksum "package.json" }}
            # fallback to using the latest cache if no exact match is found
            - v1-dependencies-js
      - run: yarn install
      - save_cache:
          paths:
            - node_modules
          key: v1-dependencies-js-{{ checksum "package.json" }}
      - run: yarn clear
      - run: yarn test
      - run: yarn build
      - persist_to_workspace:
          root: ~/repo
          paths:
            - .

  publish:
    docker:
      - image: circleci/node:14

    working_directory: ~/repo

    steps:
      - attach_workspace:
          at: ~/repo
      - run:
          name: Authenticate with registry
          command: echo "//registry.npmjs.org/:_authToken=$NPM_TOKEN" > ~/repo/.npmrc
      - run:
          name: Publish package
          command: |
            set +e
            tempLog=$(mktemp)
            npm publish > ${tempLog} 2>&1

            if [ $? -eq 0 ]; then
              echo "Package has been successfully published!"
            else
              # npm publish action is idempotent
              grep -q "npm ERR! code E403" ${tempLog}
              grepStatus=$?

              if [ $grepStatus -eq 0 ]; then
                echo "Package is already published. Please increase the package version in package.json"
                exit 0
              else
                cat ${tempLog}
                exit 1
              fi

              rm -f ${tempLog}
            fi

            rm -f ${tempLog}

workflows:
  version: 2
  build-publish:
    jobs:
      - build:
          filters:
            branches:
              only: /.*/

      - publish:
          filters:
            branches:
              only:
                - master
          requires:
            - build