version: 2.1
# --- Constants --- #

globals:
  images:
    node: &node cimg/node:lts
    postgres: &postgres circleci/postgres:9.6.5
  caches:
    dependencies: &dependencies dependencies-{{ checksum "package.json" }}
  docker_hub:
    user-id: &dockerhub-user-id anthonyjhoiro
    password: &dockerhub-password $DOCKERHUB_PASSWORD
    image: &dockerhub-image devops-tpfinal-back


# --- Commands --- #

commands:
  setup_dependencies:
    description: Setup the environment
    steps:
      - checkout
      - restore_cache:
          keys:
            - *dependencies

# --- Jobs definitions --- #

jobs:
  build: &shared-config
    docker:
      - image: *node
        auth:
          username: *dockerhub-user-id
          password: *dockerhub-password
    working_directory: ~/app
    steps:
      - checkout
      - restore_cache:
          keys:
            - *dependencies
            # fallback to using the latest cache if no exact match is found
            - dependencies-
      - run: yarn install
      - save_cache:
          paths:
            - node_modules
          key: *dependencies
  test:
    <<: *shared-config
    steps:
      - setup_dependencies
      - run: yarn test

  test-e2e:
    <<: *shared-config
    docker:
      - image: *node
      - image: *postgres
        environment:
          POSTGRES_DB: postgres
          POSTGRES_USER: postgres
          POSTGRES_PASSWORD: postgres
    steps:
      - setup_dependencies
      - run:
          command: yarn test:e2e
          environment:
            DATABASE_URL: postgres://postgres:postgres@localhost:5432/postgres

  lint:
    <<: *shared-config
    steps:
      - setup_dependencies
      - run:
          name: Check files format
          command: yarn format:check

      - run:
          name: Lint files
          command: yarn lint

  docker-build:
    <<: *shared-config
    parameters:
      tags:
        default: ""
        type: string
    environment:
      DOCKER_HUB_PWD: *dockerhub-password
      DOCKER_HUB_USER_ID: *dockerhub-user-id
      DOCKER_HUB_IMAGE: *dockerhub-image
    steps:
      - checkout
      - setup_remote_docker:
          version: 20.10.7
      - run:
          name: Build docker image
          command: docker build -t app .
      - deploy:
          name: Publish image to Docker Hub
          command: |
            echo $DOCKERHUB_PASSWORD | docker login -u $DOCKER_HUB_USER_ID --password-stdin

            for tag in <<parameters.tags>>
            do
              docker tag app $DOCKER_HUB_USER_ID/$DOCKER_HUB_IMAGE:$tag
              docker push $DOCKER_HUB_USER_ID/$DOCKER_HUB_IMAGE:$tag
            done
  #            docker tag app $DOCKER_HUB_USER_ID/$DOCKER_HUB_IMAGE:$CIRCLE_BUILD_NUM
  #
  #                              docker push $DOCKER_HUB_USER_ID/$DOCKER_HUB_IMAGE:latest


  deploy-heroku:
    <<: *shared-config
    docker:
      - image: buildpack-deps:trusty
        auth:
          username: *dockerhub-user-id
          password: *dockerhub-password
    steps:
      - setup_dependencies
      - 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


# --- Workflow definition --- #

workflows:
  version: 2
  build-test-and-lint:
    jobs:
      - build
      - test:
          requires:
            - build
      - test-e2e:
          requires:
            - build
      - lint:
          requires:
            - build
      - docker-build:
          tags: "latest $CIRCLE_BUILD_NUM"
          requires:
            - test
            - test-e2e
            - lint
          filters:
            branches:
              only:
                - main

      - docker-build:
          tags: "dev $CIRCLE_BUILD_NUM-dev"
          requires:
            - test
            - test-e2e
            - lint
          filters:
            branches:
              only:
                - develop

      - deploy-heroku:
          requires:
            - test
            - test-e2e
            - lint
          filters:
            branches:
              only:
                - main