version: 2.1
executors:
  node-executor:
      docker:
        - image: circleci/node:12
          auth:
            username: $DOCKERHUB_LOGIN
            password: $DOCKERHUB_PASSWORD
  node-and-postgresql-executor:
      docker:
        - image: circleci/node:12
          auth:
            username: $DOCKERHUB_LOGIN
            password: $DOCKERHUB_PASSWORD
        - image: circleci/postgres:9.6.2-alpine
          auth:
            username: $DOCKERHUB_LOGIN
            password: $DOCKERHUB_PASSWORD
      environment:
        DATABASE_URL: "postgres://postgres:$POSTGRES_PASSWORD@localhost:5432/postgres"
        JWT_SECRET: 
        API_PORT: 3000
        API_HOST: localhost
        API_PROTOCOL: http
        POSTGRES_USER: postgres
        POSTGRES_PASSWORD: $POSTGRES_PASSWORD
        POSTGRES_DB: postgres
  buildpack:
      docker:
        - image: circleci/buildpack-deps:stretch
          auth:
            username: $DOCKERHUB_LOGIN
            password: $DOCKERHUB_PASSWORD
jobs:
  build:
    executor: node-executor
    steps:
      - checkout
      - run:
          name: Install dependencies
          command: yarn global add node-gyp && yarn install
      - save_cache:
          name: Save Yarn package cache
          key: npm-v7-dependencies-{{ checksum "yarn.lock" }}
          paths:
            - ./node_modules
  lint:
    executor: node-executor
    steps:
      - checkout
      - restore_cache:
          name: Restore yarn package cache
          key: npm-v7-dependencies-{{ checksum "yarn.lock" }}
      - run: 
          name: Analyse code with tslint and format with prettier
          command: yarn lint && yarn format:check 
  test:
    executor: node-executor
    steps:
      - checkout
      - restore_cache:
          name: Restore yarn package cache
          key: npm-v7-dependencies-{{ checksum "yarn.lock" }}
      - run: 
          name: Run test with jest
          command: yarn test:ci
  test_end_to_end:
    executor: node-and-postgresql-executor
    steps:
      - checkout
      - restore_cache:
          name: Restore yarn package cache
          key: npm-v7-dependencies-{{ checksum "yarn.lock" }}
      - run:
          name: Run end to end test
          command: yarn test:e2e
  build_and_push_docker_image:
    executor: buildpack
    environment:
      IMAGE_NAME: my-awesome-ci-expr
    steps:
      - checkout
      - setup_remote_docker:
          version: 19.03.13
      - run:
          name: Build Docker image
          command: docker build -t $IMAGE_NAME:app .
      - run:
          name: Login to Docker Hub
          command: |
            echo "$DOCKERHUB_PASSWORD" | docker login -u "$DOCKERHUB_LOGIN" --password-stdin
      - run:
          name: Tag Docker image
          command: docker tag $IMAGE_NAME:app $DOCKERHUB_LOGIN/$IMAGE_NAME:$CIRCLE_BUILD_NUM
      - run:
          name: Tag Docker image
          command: docker tag $IMAGE_NAME:app $DOCKERHUB_LOGIN/$IMAGE_NAME:latest
      - run:
          name: Push to Docker Hub
          command: docker push $DOCKERHUB_LOGIN/$IMAGE_NAME:latest
  generate_doc:
    executor: node-executor
    steps:
      - checkout
      - restore_cache:
          name: Restore yarn package cache
          key: npm-v7-dependencies-{{ checksum "yarn.lock" }}
      - run:
          name: Build doc
          command: yarn doc:build
      - store_artifacts:
          path: doc-server/
          destination: doc-artifact/
workflows:
  version: 2
  integration:
    jobs:
      - build
      - lint:
          requires:
            - build
      - test:
          requires:
            - build
      - test_end_to_end:
          requires:
            - build
      - build_and_push_docker_image:
          requires:
            - lint
            - test
            - test_end_to_end
      - generate_doc:
          requires:
            - build_and_push_docker_image