image: node:latest

stages:
    - test
    - build
    - package

cache:
    - key:
          files:
              - yarn.lock
              - frontend/yarn.lock
      paths:
          - .yarn
          - node_modules
          - frontend/.yarn
          - frontend/node_modules

before_script:
    - yarn install --cache-folder .yarn --frozen-lockfile
    - cd frontend
    - yarn install --cache-folder .yarn --frozen-lockfile
    - cd ..

test_backend:
    stage: test
    script:
        - yarn lint

test_frontend:
    stage: test
    script:
        - cd frontend
        - yarn lint

build_backend:
    stage: build
    needs:
        - job: test_backend
          artifacts: false
    script:
        - yarn webpack
    artifacts:
        paths:
            - dist/
        expire_in: 1h

build_frontend:
    stage: build
    needs:
        - job: test_frontend
          artifacts: false
    script:
        - cd frontend
        - yarn build
    artifacts:
        paths:
            - frontend/dist/
        expire_in: 1h

package_server:
    stage: package
    cache: []
    before_script: []
    needs:
        - job: build_backend
          artifacts: true
        - job: build_frontend
          artifacts: true
    script:
        - TMP=$(mktemp -d)
        - mv dist/* "$TMP"
        - mkdir "$TMP/frontend"
        - mv frontend/dist/* "$TMP/frontend"
        - rm -r *
        - rm -r .* || true
        - mv "$TMP/"* .
    artifacts:
        paths:
            - package.json
            - server.js
            - yarn.lock
            - frontend/