version: 2

build_preconditions: &build_preconditions
  requires:
    - server
    - vault
    - script
    - auditorium
    - packages
  filters:
    branches:
      only:
        - master
        - development

deploy_preconditions: &deploy_preconditions
  requires:
    - build
  filters:
    branches:
      only:
        - master
        - development

jobs:
  server:
    docker:
      - image: circleci/golang:1.13
        environment:
          POSTGRES_CONNECTION_STRING: postgres://circle:test@localhost:5432/circle_test?sslmode=disable
          PORT: 8080
          EVENT_RETENTION_PERIOD: 4464h
          COOKIE_EXCHANGE_SECRET: VswgMshC4mPDfey8o+yScg==
      - image: circleci/postgres:11.2-alpine
        environment:
          - POSTGRES_USER=circle
          - POSTGRES_PASSWORD=test
    working_directory: ~/offen/server
    steps:
      - checkout:
          path: ~/offen
      - restore_cache:
          key: offen-server-{{ checksum "go.mod" }}
      - run:
          name: Download modules
          command: go mod download
      - save_cache:
          paths:
            - /go/pkg/mod
          key: offen-server-{{ checksum "go.mod" }}
      - run:
          name: Waiting for Postgres to be ready
          command: |
            for i in `seq 1 10`;
            do
              nc -z localhost 5432 && echo Success && exit 0
              echo -n .
              sleep 1
            done
            echo Failed waiting for Postgres && exit 1
      - run:
          name: Run tests
          command: |
            cp ~/offen/bootstrap.yml .
            make test-ci

  vault:
    docker:
      - image: circleci/node:10-browsers
    working_directory: ~/offen/vault
    steps:
      - checkout:
          path: ~/offen
      - restore_cache:
          key: offen-vault-{{ checksum "package.json" }}
      - run:
          name: Install dependencies
          command: npm install
      - save_cache:
          paths:
            - ~/offen/vault/node_modules
          key: offen-vault-{{ checksum "package.json" }}
      - run:
          name: Run tests
          command: npm test

  script:
    docker:
      - image: circleci/node:10-browsers
    working_directory: ~/offen/script
    steps:
      - checkout:
          path: ~/offen
      - restore_cache:
          key: offen-script-{{ checksum "package.json" }}
      - run:
          name: Install lsof
          command: sudo apt-get install lsof
      - run:
          name: Install dependencies
          command: npm install
      - save_cache:
          paths:
            - ~/offen/script/node_modules
          key: offen-script-{{ checksum "package.json" }}
      - run:
          name: Run tests
          command: npm test

  auditorium:
    docker:
      - image: circleci/node:10-browsers
    working_directory: ~/offen/auditorium
    steps:
      - checkout:
          path: ~/offen
      - restore_cache:
          key: offen-auditorium-{{ checksum "package.json" }}
      - run:
          name: Install lsof
          command: sudo apt-get install lsof
      - run:
          name: Install dependencies
          command: npm install
      - save_cache:
          paths:
            - ~/offen/auditorium/node_modules
          key: offen-auditorium-{{ checksum "package.json" }}
      - run:
          name: Run tests
          command: npm test

  packages:
    docker:
      - image: circleci/node:10-browsers
    working_directory: ~/offen/packages
    steps:
      - checkout:
          path: ~/offen
      - restore_cache:
          key: offen-packages-{{ checksum "package.json" }}
      - run:
          name: Install lsof
          command: sudo apt-get install lsof
      - run:
          name: Install dependencies
          command: npm install
      - save_cache:
          paths:
            - ~/offen/packages/node_modules
          key: offen-packages-{{ checksum "package.json" }}
      - run:
          name: Run tests
          command: npm test

  build:
    docker:
      - image: docker:18-git
    working_directory: ~/offen
    steps:
      - checkout
      - setup_remote_docker
      - restore_cache:
          keys:
            - v1-{{ .Branch }}
          paths:
            - /caches/proxy.tar
            - /caches/server.tar
      - run:
          name: Load Docker image layer cache
          command: |
            set +o pipefail
            docker load -i /caches/proxy.tar | true
            docker load -i /caches/server.tar | true
      - run:
          name: Build application Docker image
          command: |
            if [ "${CIRCLE_BRANCH}" == "master" ]; then
              export SITEURL="https://www.offen.dev"
              export DOCKER_IMAGE_TAG="stable"
              export ROBOTS_FILE="robots.txt.production"
            else
              export SITEURL="https://staging.offen.dev"
              export DOCKER_IMAGE_TAG="latest"
              export ROBOTS_FILE="robots.txt.staging"
            fi
            docker build -t offen/server:$DOCKER_IMAGE_TAG -f build/server/Dockerfile .
            docker build --build-arg siteurl=$SITEURL --build-arg robots=$ROBOTS_FILE -t offen/proxy:$DOCKER_IMAGE_TAG -f build/proxy/Dockerfile .
      - run:
          name: Save Docker image layer cache
          command: |
            mkdir -p /caches
            docker save -o /caches/proxy.tar offen/proxy
            docker save -o /caches/server.tar offen/server
      - save_cache:
          key: v1-{{ .Branch }}-{{ epoch }}
          paths:
            - /caches/proxy.tar
            - /caches/server.tar
      - deploy:
          name: Push application Docker image
          command: |
            if [ "${CIRCLE_BRANCH}" == "master" ]; then
              export DOCKER_IMAGE_TAG="stable"
            else
              export DOCKER_IMAGE_TAG="latest"
            fi
            echo "$DOCKER_PASS" | docker login --username $DOCKER_USER --password-stdin
            docker push offen/server:$DOCKER_IMAGE_TAG
            docker push offen/proxy:$DOCKER_IMAGE_TAG

  deploy:
    working_directory: ~/offen
    docker:
      - image: circleci/golang:1.12
    steps:
      - checkout
      - run:
          name: Define target environment
          command: |
            if [ "${CIRCLE_BRANCH}" == "master" ]; then
              echo 'export TARGET_ENVIRONMENT="production"' >> $BASH_ENV
            else
              echo 'export TARGET_ENVIRONMENT="staging"' >> $BASH_ENV
            fi
      - run:
          name: Install deployment dependencies
          command: |
            sudo apt-get update && sudo apt-get install -qq -y python-pip libpython-dev
            curl -O https://bootstrap.pypa.io/get-pip.py && sudo python get-pip.py
            sudo pip install -q awscli --upgrade
            sudo pip install awsebcli --upgrade
      - run:
          name: Run database migrations
          working_directory: ~/offen/server
          command: |
            go run cmd/offen/main.go migrate -conn $(aws secretsmanager get-secret-value --secret-id $TARGET_ENVIRONMENT/postgresConnectionString | jq -r '.SecretString')
      - run:
          name: Deploy
          command: |
            cp Dockerrun.aws.json.$TARGET_ENVIRONMENT Dockerrun.aws.json
            eb deploy

workflows:
  version: 2
  test_build_deploy:
    jobs:
      - server
      - vault
      - script
      - auditorium
      - packages
      - build:
          <<: *build_preconditions
      - deploy:
          <<: *deploy_preconditions