sudo: true
dist: xenial

language: generic

addons:
  chrome: stable

services:
  - xvfb
  - postgresql

before_install:
  - # start your web application and listen on `localhost`
  - google-chrome-stable --headless --disable-gpu --remote-debugging-port=5000 http://localhost &

cache:
  directories:
    - $HOME/.stack
    - .stack-work
    - back/.stack-work
  timeout: 1000

jobs:
  include:
    - stage: "Build the frontend and upload a Docker image"
      script:
        # Build
        - cd front
        - npm install
        - npm run build
        - cd -
        # Upload the Docker image
        - |
          if [ "$TRAVIS_EVENT_TYPE" = "push" ]; then
            export BRANCH="$(echo "$TRAVIS_BRANCH" | tr '/' '-')"
            make front/travis-docker "tag=$BRANCH--front"
            docker login quay.io -u "$DOCKER_USER" -p "$DOCKER_PASS"
            docker push "quay.io/aelve/guide:$BRANCH--front"
          fi

    - stage: "Build the backend and upload a Docker image"
      before_script:
        - sudo apt-get install -y libgmp-dev
        - curl -sSL https://get.haskellstack.org/ | sh
        # travis_retry works around https://github.com/commercialhaskell/stack/issues/4888
        - travis_retry stack setup
        # Decrypt the GitHub deploy key (travis_key.enc)
        - openssl aes-256-cbc -k "$travis_key_password" -d -md sha256 -a -in travis_key.enc -out travis_key
        - echo "Host github.com" > ~/.ssh/config
        - echo "  IdentityFile  $(pwd)/travis_key" >> ~/.ssh/config
        - chmod 400 travis_key
        - git remote set-url origin git@github.com:aelve/guide.git
      script:
        # Build
        - stack --no-terminal build --test --no-run-tests --bench --no-run-benchmarks --dependencies-only
        - stack --no-terminal build --test --no-run-tests --bench --no-run-benchmarks
        # Regenerate Swagger and push to the same branch, even if the branch
        # is already ahead (which may happen if the previous build in the
        # pipeline also pushed to it)
        - |
          if [ "$TRAVIS_EVENT_TYPE" = "push" ]; then
            git checkout "$TRAVIS_BRANCH" && git pull
            stack exec -- guide api-docs > back/swagger.json
            git add back/swagger.json
            # Will only push if the commit was created successfully. Note
            # that we don't use "[skip ci]" in the commit message here
            # because then Mergify goes "oh, but Travis hasn't passed, so I
            # shouldn't merge this".
            (git commit -m "Regenerate swagger.json" && git push) || true
            git checkout "$TRAVIS_COMMIT"
          fi
        # Upload the Docker image
        - |
          if [ "$TRAVIS_EVENT_TYPE" = "push" ]; then
            export BRANCH="$(echo "$TRAVIS_BRANCH" | tr '/' '-')"
            make back/travis-docker "tag=$BRANCH--back"
            docker login quay.io -u "$DOCKER_USER" -p "$DOCKER_PASS"
            docker push "quay.io/aelve/guide:$BRANCH--back"
          fi
        # Check that no new undocumented definitions are introduced. Our
        # goal is full documented code with ZERO undocumented definitions.
        # This check warns if a commit increases the amount of undocumented
        # definitions (currently 251).
        #
        # First we unregister the package so that Haddocks would be rebuilt
        # from scratch, then we build haddocks and count the lines for
        # "missing documentation".
        - stack --no-terminal exec -- ghc-pkg unregister guide
        - stack --no-terminal build --test --no-run-tests --bench --no-run-benchmarks --haddock --no-haddock-deps --haddock-arguments='--no-warnings' 2> haddock.log
        - export undocumented=$(awk '/\(src\// {count++} END{print count}' haddock.log)
        - |
          echo "Undocumented definitions: $undocumented"
        - |
          if [ $undocumented -gt 251 ]; then
            >&2 echo "FAIL: found $undocumented top-level undocumented definitions. The current limit is 251. Please, add Haddock comments to undocumented definitions!"
            exit 1
          fi
      before_cache:
        - rm -rf $HOME/.stack/programs  #  GHC is faster to install than to cache

    - stage: "Test the backend"
      before_script:
        - sudo apt-get install -y libgmp-dev fluxbox
        - curl -sSL https://get.haskellstack.org/ | sh
        # travis_retry works around https://github.com/commercialhaskell/stack/issues/4888
        - travis_retry stack setup
        # Install chromedriver
        - wget https://chromedriver.storage.googleapis.com/76.0.3809.126/chromedriver_linux64.zip
        - unzip chromedriver_linux64.zip
        - chmod +x chromedriver
        - sudo mv -f chromedriver /usr/local/share/chromedriver
        - sudo ln -s /usr/local/share/chromedriver /usr/local/bin/chromedriver
        - sudo ln -s /usr/local/share/chromedriver /usr/bin/chromedriver
        # Run selenium-server
        - travis_retry wget https://selenium-release.storage.googleapis.com/3.141/selenium-server-standalone-3.141.59.jar -O selenium.jar
        - java -jar selenium.jar 2> /dev/null &
        - sleep 15
        # Create database
        - psql -c 'create database guide;' -U postgres
      script:
        - stack --no-terminal test
        - make back/test-db
        - make back/load-into-postgres
      before_cache:
        - rm -rf $HOME/.stack/programs  # GHC is faster to install than to cache

    # - stage: "Test the frontend"
    #     - sleep 10
    #     - fluxbox >/dev/null 2>&1 &
    #   script:
    #     # Run testcafe e2e testing
    #     - npm run test

notifications:
  slack:
    secure: 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

# travis_key.enc decryption password, see:
# http://markbucciarelli.com/posts/2019-01-26_how-to-push-to-github-from-travis-ci.html
env:
  matrix:
    secure: 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