version: 2

defaults: &defaults
  working_directory: ~/project
  docker:
    - image: circleci/node:latest
  environment:
    NODE_ENV: test

release_branches: &release_branches
  branches:
    only:
      - dev
      - next

release: &release
  <<: *defaults
  steps:
    - checkout
    - attach_workspace:
        at: ~/project
    - run:
        name: release
        command: |
          if [ -z "$COMMIT_MSG" ]; then
            COMMIT_MSG=$(git --no-pager log --pretty=full -n1 $CIRCLE_SHA1)
          fi
          if echo "$COMMIT_MSG" | grep -o "\[release\]"; then
            echo "//registry.npmjs.org/:_authToken=$NPM_TOKEN" >> ~/.npmrc
            echo "//registry.yarnpkg.com/:_authToken=$NPM_TOKEN" >> ~/.npmrc
            yarn lerna version --yes --no-git-tag-version --no-push
            PACKAGE_SUFFIX=edge yarn build
            if [ "$CIRCLE_BRANCH" = "next" ]; then tag="--tag next"; fi
            ./scripts/workspace-run npm publish $tag -q
          else
            echo "Release phase is skipped."
          fi

jobs:
  # --------------------------------------------------------------------------
  # Phase 1: Setup
  # --------------------------------------------------------------------------
  setup:
    <<: *defaults
    steps:
      # Checkout repository
      - checkout

      # Restore cache
      - restore_cache:
          key: lock-{{ checksum "yarn.lock" }}

      # Install dependencies
      - run:
          name: Install Dependencies
          command: yarn --frozen-lockfile --non-interactive

      # Save cache
      - save_cache:
          key: lock-{{ checksum "yarn.lock" }}
          paths:
            - node_modules
            - packages/*/node_modules
            - distributions/*/node_modules

      # Persist workspace
      - persist_to_workspace:
          root: ~/project
          paths:
            - node_modules
            - packages/*/node_modules
            - distributions/*/node_modules
            - packages/*/dist

  # --------------------------------------------------------------------------
  # Phase 2: Lint + Audit + Build Nuxt and fixtures
  # --------------------------------------------------------------------------
  lint:
    <<: *defaults
    steps:
      - checkout
      - attach_workspace:
          at: ~/project
      - run:
          name: Lint
          command: yarn test:lint

  audit:
    <<: *defaults
    steps:
      - checkout
      - attach_workspace:
          at: ~/project
      - run:
          name: Security Audit
          command: yarn audit

  build:
    <<: *defaults
    steps:
      - checkout
      - attach_workspace:
          at: ~/project
      - run:
          name: Build Fixtures
          command: yarn test:fixtures -w=4 --coverage && yarn coverage
      - persist_to_workspace:
          root: ~/project
          paths:
            - test/fixtures

  lint-app:
    <<: *defaults
    steps:
      - checkout
      - attach_workspace:
          at: ~/project
      - run:
          name: Lint vue-app templates
          command: yarn lint:app

  # --------------------------------------------------------------------------
  # Phase 3: Unit and E2E tests
  # --------------------------------------------------------------------------
  test-unit:
    <<: *defaults
    steps:
      - checkout
      - attach_workspace:
          at: ~/project
      - run:
          name: Unit Tests
          command: yarn test:unit -w=4 --coverage && yarn coverage

  test-e2e:
    <<: *defaults
    docker:
      - image: circleci/node:latest-browsers
    steps:
      - checkout
      - attach_workspace:
          at: ~/project
      - run:
          name: E2E Tests
          command: yarn test:e2e && yarn coverage

  # --------------------------------------------------------------------------
  # Phase 4: Release (dev branch only)
  # --------------------------------------------------------------------------
  release-commit:
    <<: *release

  release-nightly:
    <<: *release
    environment:
        COMMIT_MSG: '[release]'

# Workflow definition
workflows:
  version: 2

  # Build and test after each commit
  # Manually release on release branches
  commit:
    jobs:
      - setup
      - lint:       { requires: [setup] }
      - audit:      { requires: [setup] }
      - build:      { requires: [setup] }
      - lint-app:   { requires: [build] }
      - test-unit:  { requires: [build] }
      - test-e2e:   { requires: [build] }
      - release-commit:
          requires: [build, lint, lint-app, audit, test-unit, test-e2e]
          filters:
            <<: *release_branches

  # Release nightly builds on release branches
  nightly:
    jobs:
      - setup
      - lint:       { requires: [setup] }
      - audit:      { requires: [setup] }
      - build:      { requires: [setup] }
      - lint-app:   { requires: [build] }
      - test-unit:  { requires: [build] }
      - test-e2e:   { requires: [build] }
      - release-nightly:
          requires: [build, lint, lint-app, audit, test-unit, test-e2e]
    triggers:
      - schedule:
          cron: "0 0 * * *"
          filters:
            <<: *release_branches