version: 2
jobs:
  build:
    docker:
      - image: circleci/node:erbium
        environment:
          HUGO_VERSION: "0.59.1"
          S3DEPLOY_VERSION: "2.3.2"
    steps:
      - checkout
      - restore_cache:
          keys:
            - install-{{ .Environment.CACHE_VERSION }}-{{ checksum ".circleci/config.yml" }}
            - install-{{ .Environment.CACHE_VERSION }}-
      - run:
          name: Make bin folder
          command: mkdir -p $HOME/bin
      - run:
          name: Install Hugo
          command: ./deploy/ci-install-hugo.sh
      - run:
          name: Install s3deploy
          command: ./deploy/ci-install-s3deploy.sh
      - run:
          name: Install NPM dependencies
          command: sudo npm i -g postcss-cli autoprefixer redoc-cli
      - run:
          name: Generate API documentation
          command: cd api-docs && bash generate-api-docs.sh
      - save_cache:
          key: install-{{ .Environment.CACHE_VERSION }}-{{ checksum ".circleci/config.yml" }}
          paths:
            - /home/circleci/bin
      - run:
          name: Hugo Build
          command: $HOME/bin/hugo -v --minify --destination workspace/public
      - persist_to_workspace:
          root: workspace
          paths:
            - public

  deploy:
    docker:
      - image: circleci/golang:latest
    steps:
      - checkout
      - restore_cache:
          keys:
            - install-{{ .Environment.CACHE_VERSION }}-{{ checksum ".circleci/config.yml" }}
            - install-{{ .Environment.CACHE_VERSION }}-
      - attach_workspace:
          at: workspace
      - run:
          name: Deploy to S3
          command: $HOME/bin/s3deploy -source=workspace/public/ -bucket=$BUCKET -region=$REGION -distribution-id=$CF_DISTRIBUTION_ID
      - run:
          name: Post in Slack
          command: >
            export COMMIT_INFO="$(git log -1 --format='%n>>>%s%n%b%n_<https://github.com/influxdata/docs-v2/commit/%H|Commit %h> - by %an_')"; curl -X POST --data-urlencode "payload={\"username\": \"Doc the Docs Bot\", \"text\": \"The InfluxDB v2 docs successfully deployed! :greeny_peeny:\n\n $COMMIT_INFO\", \"icon_emoji\": \":doc_green:\"}" $SLACK_DOCS_WEBHOOK_URL
          when: on_success

workflows:
  version: 2
  build:
    jobs:
      - build
      - deploy:
          requires:
            - build
          filters:
            branches:
              only:
                - master