version: 2

jobs:
  build:
    docker:
      - image: circleci/python:3.9
        auth:
          username: $DOCKER_ID
          password: $DOCKER_PASSWORD
    steps:
      - checkout
      - run: sudo chown -R circleci:circleci /usr/local/bin
      - run: sudo chown -R circleci:circleci /usr/local/lib/python3.9/site-packages
      - restore_cache:
          key: deps9-{{ .Branch }}-{{ checksum "Pipfile.lock" }}
      - run:
          command: sudo apt install libpq-dev python3-dev
          name: Install build tools
      - run:
          command: |
            sudo pip install pipenv
            pipenv install
          name: Install virtual env
      - run:
          command: pip install -r requirements/dev.txt --user
          name: Install requirements
      - save_cache:
          key: deps9-{{ .Branch }}-{{ checksum "Pipfile.lock" }}
          paths:
            - ".venv"
            - "/usr/local/bin"
            - "/usr/local/lib/python3.6/site-packages"
  test:
    docker:
      - image: circleci/python:3.9
        environment:
          PIPENV_VENV_IN_PROJECT: true
          DATABASE_URL: postgresql://myUsr:somePwd@localhost/psdb
          CONDUIT_SECRET: $CONDUIT_SECRET
          FLASK_APP: ~/autoapp.py
          FLASK_DEBUG: 1
      - image: circleci/postgres:9.6.2
        environment:
          POSTGRES_USER: myUsr
          POSTGRES_DB: psdb
          POSTGRES_PASSWORD: somePwd
    steps:
      - checkout
      - restore_cache:
          key: deps9-{{ .Branch }}-{{ checksum "Pipfile.lock" }}
      - run: 
          name: Waiting for postgresql
          command : dockerize -wait tcp://localhost:5432 -timeout 1m
      - run: 
          name: Launching tests
          command: |
            . venv/bin/activate
            flask db upgrade
            flask test
  deploy-heroku:
    docker: 
      - image : buildpack-deps:trusty
    steps:
      - checkout
      - run:
          name: Deploy main to heroku
          command: |
            git config --global push.default matching
            git push https://heroku:$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-build-push:
    docker:
      - image: docker:17.05.0-ce-git
    steps:
      - checkout
      - setup_remote_docker
      - run:
          name: Build container
          command: |
            docker build --cache-from=app -t app .
      - run: 
          name: Publish app to Docker hub
          command: |
            docker login -u $DOCKER_ID -p $DOCKER_PASSWORD
            docker tag app $DOCKER_ID/devops-final-back:$CIRCLE_BUILD_NUM
            docker tag app $DOCKER_ID/devops-final-back:latest
            docker push $DOCKER_ID/devops-final-back:$CIRCLE_BUILD_NUM
            docker push $DOCKER_ID/devops-final-back:latest

workflows:
  version: 2
  main:
    jobs:
      - build
      - test:
          requires:
            - build
      - deploy-heroku:
          requires:
            - build
      - docker-build-push:
          requires:
            - build