version: 2.1
jobs:
  Build:
    docker:
      - image: circleci/python:3.9-buster-node-browsers
    steps:
      - checkout
      - restore_cache:
          key: deps-{{ checksum "requirements/dev.txt"}}-{{ .Environment.CACHE_VERSION }}
      - run:
          name: Install dependencies in a python venv
          command: |
            python3 -m venv venv
            . venv/bin/activate
            pip install -r requirements/dev.txt
      - save_cache:
          key: deps-{{ checksum "requirements/dev.txt"}}-{{ .Environment.CACHE_VERSION }}
          paths: 
            - "venv"
  Test:
    docker: 
      - image: circleci/python:3.9-buster-node-browsers
        environment:
          DATABASE_URL: postgresql://myUsr:somePwd@localhost:5432/psdb
          FLASK_APP: autoapp.py
          CONDUIT_SECRET: 'something-really-secret'
          FLASK_DEBUG: 1
      - image: circleci/postgres:9.6.2-alpine
        environment:
          POSTGRES_USER: myUsr
          POSTGRES_DB: psdb
          POSTGRES_PASSWORD: somePwd
    steps:
      - checkout
      - restore_cache:
          key: deps-{{ checksum "requirements/dev.txt"}}-{{ .Environment.CACHE_VERSION }}
      - run: 
          name: Waiting for postgresql
          command : dockerize -wait tcp://localhost:5432 -timeout 1m
      - run: 
          name: Launching tests
          command: |
            . venv/bin/activate
            flask db upgrade
            flask test
  Heroku:
    docker: 
      - image : buildpack-deps:trusty
    steps:
      - checkout
      - run:
          name: Deploy main to heroku
          command: |
            git config --global push.default matching
            git push https://heroku:$HEROKU_API_KEY@git.heroku.com/$HEROKU_APP_NAME.git main
      - run:
          name: Smoke test
          command: |
            HTTPCODE=`curl -s -o /dev/null -w "%{http_code}" https://$HEROKU_APP_NAME.herokuapp.com/api/articles`
            if [ "$HTTPCODE" -ne 200 ];then
              echo "heroku app not responding, failing deploy"
              exit 1
            fi
  Docker:
    working_directory: /dockerapp
    docker:
      - image: docker:17.05.0-ce-git
    steps:
      - checkout
      - setup_remote_docker
      - run:
          name:  Dockerize
          command: |
            docker build --cache-from=app -t app .
      - run: 
          name: Publish app to docker hub
          command: |
            docker login -u $DOCKER_HUB_USERNAME -p $DOCKER_HUB_PASSWORD
            docker tag app $DOCKER_HUB_USERNAME/tp-devops-final-api:$CIRCLE_BUILD_NUM
            docker tag app $DOCKER_HUB_USERNAME/tp-devops-final-api:latest
            docker push $DOCKER_HUB_USERNAME/tp-devops-final-api:$CIRCLE_BUILD_NUM
            docker push $DOCKER_HUB_USERNAME/tp-devops-final-api:latest
workflows:
  Build_Test_N_Deploy:
    jobs:
      - Build
      # - Test: 
          # requires:
            # - Build
      - Heroku:
          context: Heroku
          requires:
            - Build
      - Docker:
          context: Docker
          requires:
            - Build