references:
  commands:
    setup_heroku: &setup_heroku
      name: Setup Heroku
      command: bash .circleci/setup-heroku.sh
    deploy_heroku: &deploy_heroku
      name: Deploy Heroku
      command: |
        git push -f git@heroku.com:$HEROKU_APP_NAME.git master
        heroku run rake db:migrate -a $HEROKU_APP_NAME
        sleep 5  # sleep for 5 seconds to wait for dynos
        heroku restart -a $HEROKU_APP_NAME

version: 2
jobs:
  build:
    parallelism: 1
    docker:
      - image: circleci/ruby:2.5.0-node-browsers
        environment:
          BUNDLE_JOBS: 3
          BUNDLE_RETRY: 3
          BUNDLE_PATH: vendor/bundle
          REDIS_HOST: 127.0.0.1
          PGHOST: 127.0.0.1
          PGUSER: postgres
          RAILS_ENV: test
      - image: circleci/postgres:9.4.16-alpine-postgis
        environment:
          POSTGRES_USER: postgres
          POSTGRES_DB: tsukulink_test
          POSTGRES_PASSWORD: xxxxxxxx
      - image: redis:4.0.8-alpine
    steps:
      - checkout

      # Which version of bundler?
      - run:
          name: Which bundler?
          command: bundle -v

      # Restore bundle cache
      - restore_cache:
          keys:
            - rails-tsukulink-bundle-v2-{{ checksum "Gemfile.lock" }}
            - rails-tsukulink-bundle-v2-

      - run:
          name: Bundle Install
          command: bundle check || bundle install

      # Store bundle cache
      - save_cache:
          key: rails-tsukulink-bundle-v2-{{ checksum "Gemfile.lock" }}
          paths:
            - vendor/bundle

#      # Only necessary if app uses webpacker or yarn in some other way
#      - restore_cache:
#          keys:
#            - rails-tsukulink-yarn-{{ checksum "yarn.lock" }}
#            - rails-tsukulink-yarn-
#
#      - run:
#          name: Yarn Install
#          command: yarn install --cache-folder ~/.cache/yarn
#
#      # Store yarn / webpacker cache
#      - save_cache:
#          key: rails-tsukulink-yarn-{{ checksum "yarn.lock" }}
#          paths:
#            - ~/.cache/yarn

      - run:
          name: Wait for DB
          command: dockerize -wait tcp://localhost:5432 -timeout 1m

      - run:
          name: Database setup
          command: bin/rails db:schema:load --trace

      # Run rspec in parallel
      - type: shell
        command: |
          bundle exec rspec --profile 10 \
                            --format RspecJunitFormatter \
                            --out test_results/rspec.xml \
                            --format progress \
                            $(circleci tests glob "spec/**/*_spec.rb" | circleci tests split --split-by=timings)
      # Save test results for timing analysis
      - store_test_results:
          path: test_results

  deploy_staging:
    machine:
      enabled: true
    environment:
      HEROKU_APP_NAME: tsukulink-staging
    steps:
      - checkout
      - add_ssh_keys:
          fingerprints:
            - "xxxxx"
      - run: *setup_heroku
      - run: *deploy_heroku

  deploy_release:
    machine:
      enabled: true
    environment:
      HEROKU_APP_NAME: tsukulink
    steps:
      - checkout
      - add_ssh_keys:
          fingerprints:
            - "xxxxx"
      - run: *setup_heroku
      - run: *deploy_heroku

workflows:
  version: 2
  build-and-deploy:
    jobs:
      - build
      - deploy_staging:
          requires:
            - build
          filters:
            branches:
              only: master
      - deploy_release:
          requires:
            - build
          filters:
            branches:
              only: release