version: 2
jobs:
  build:
    docker:
      - image: circleci/python:3.7.9-stretch-browsers
    steps:
      - checkout
      - restore_cache:
          key: deps1-{{ .Branch }}-{{ checksum "requirements/dev.txt" }}
      - 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: deps1-{{ .Branch }}-{{ checksum "requirements/dev.txt" }}
          paths: 
            - "venv"

  deploy_heroku:
      docker:
        - image: buildpack-deps:trusty
      steps:
        - checkout
        - run: 
            name: Heroku deploy
            command: |
              git config --global push.default matching
              git push https://heroku:$HEROKU_API_KEY@git.heroku.com/$HEROKU_PROJECT_NAME.git main
        - run:
            name: Smoke test
            command: |
              HTTPCODE=`curl -s -o /dev/null -w "%{http_code}" https://$HEROKU_PROJECT_NAME.herokuapp.com/api/articles`
              if [ "$HTTPCODE" -ne 200 ];then
                echo "heroku app not responding, failing deploy"
                exit 1
              fi

  test:
    docker:
      - image: circleci/python:3.7.9-stretch-browsers
        environment:
          FLASK_APP: autoapp.py
          CONDUIT_SECRET: $CONDUIT_SECRET
          FLASK_DEBUG: 1
          DATABASE_URL: postgresql://$POSTGRES_USER:$POSTGRES_PASSWORD@localhost:5432/$POSTGRES_DB
      - image: circleci/postgres:9.5.19-alpine
        environment:
          POSTGRES_USER: $POSTGRES_USER
          POSTGRES_DB: $POSTGRES_DB
          POSTGRES_PASSWORD: $POSTGRES_PASSWORD
    steps:
      - checkout
      - restore_cache:
          key: deps1-{{ .Branch }}-{{ checksum "requirements/dev.txt" }}
      - run:
          name: Wait for postgres
          command: dockerize -wait tcp://localhost:5432 -timeout 1m
      - run: 
          name: running test
          command: |
            . venv/bin/activate
            flask db upgrade
            flask test

  push_docker:
    environment:
      IMAGE_NAME: grennrich/devoptpfinal-back
    docker:
      - image: circleci/buildpack-deps:stretch
    steps:
      - attach_workspace:
          at: /tmp/workspace
      - setup_remote_docker
      - run: docker load -i /tmp/workspace/image.tar
      - run:
          name: Login and push to DockerHub
          command: |
            docker login -u grennrich -p $DOCKER_HUB_PASSWORD
            docker tag $IMAGE_NAME:app $IMAGE_NAME:$CIRCLE_BUILD_NUM
            docker tag $IMAGE_NAME:app $IMAGE_NAME:latest
            docker push $IMAGE_NAME:$CIRCLE_BUILD_NUM
            docker push $IMAGE_NAME:latest

  build_docker:
      environment:
        IMAGE_NAME: grennrich/devoptpfinal-back
      docker:
        - image: circleci/buildpack-deps:stretch
      steps:
        - checkout
        - setup_remote_docker
        - run: docker image build --tag $IMAGE_NAME:app .
        - run: docker save -o image.tar $IMAGE_NAME
        - persist_to_workspace:
            root: .
            paths:
              - ./image.tar

workflows:
  version: 2
  build-test:
    jobs:
      - build
      - test:
          requires:
            - build
      - build_docker:
          context: Docker
          requires:
            # - test
            - build
      - push_docker:
          requires:
            - build_docker
          context: Docker
      - deploy_heroku:
          requires:
            # - test
            - build
          context: heroku