ci.yml

name: CI

on: push

env:
  IMAGE_NAME: ${{ github.repository }}
  NODE_VERSION: '16'

jobs:
  check-image:
    name: Check for existing image
    runs-on: 'ubuntu-latest'
    outputs:
      exists: ${{ steps.request-image-info.outputs.exists }}
    steps:
      - id: request-image-info
        run: |
          response_code=$(curl -s -o /dev/null -I -L -w "%{http_code}" https://hub.docker.com/v2/repositories/${{ env.IMAGE_NAME }}/tags/${{ github.sha }}/)
          echo $response_code
          if [ $response_code -eq 200 ]; then
            echo "exists=true" >> $GITHUB_OUTPUT
            echo "::notice ::Found existing image ${{ github.repository }}:${{ github.sha }}"
          elif [ $response_code -eq 404 ]; then
            echo "exists=false" >> $GITHUB_OUTPUT
          else
            echo "::error ::Got unexpected HTTP code $response_code"
            exit 22
          fi

  build-image:
    name: Build image
    runs-on: 'ubuntu-latest'
    needs: check-image
    if: ${{ needs.check-image.outputs.exists == 'false' }}
    steps:
      - uses: actions/checkout@v3
        with:
          submodules: true
      - uses: actions/setup-node@v3
        with:
          node-version: ${{ env.NODE_VERSION }}
      - uses: docker/login-action@v2
        with:
          username: ${{ github.repository_owner }}
          password: ${{ secrets.DOCKERHUB_PASSWORD }}
      - name: Cache dependencies
        id: cache
        uses: actions/cache@v3
        with:
          path: ./node_modules
          key: modules-${{ env.NODE_VERSION }}-${{ hashFiles('package-lock.json') }}
      - name: Install dependencies
        if: steps.cache.outputs.cache-hit != 'true'
        run: npm ci
      - name: Build the project
        run: npm run build
      - name: Build Docker image
        run: docker build --tag ${{ github.repository }}:${{ github.sha }} .
      - name: Publish to DockerHub
        run: |
          docker push ${{ github.repository }}:${{ github.sha }}
          echo "::notice ::Published as ${{ github.repository }}:${{ github.sha }}"

  tag-image-ref:
    name: Publish image
    runs-on: 'ubuntu-latest'
    needs: build-image
    if: ${{ success() || needs.build-image.result == 'skipped' }}
    steps:
      - uses: docker/login-action@v2
        with:
          username: ${{ github.repository_owner }}
          password: ${{ secrets.DOCKERHUB_PASSWORD }}
      - uses: rlespinasse/github-slug-action@v4
      - name: Pull Docker image
        run: docker pull ${{ github.repository }}:${{ github.sha }}
      - name: Tag Docker image
        run: docker tag ${{ github.repository }}:${{ github.sha }} ${{ github.repository }}:${{ env.GITHUB_REF_SLUG }}
      - name: Publish to DockerHub
        run: |
          docker push ${{ github.repository }}:${{ env.GITHUB_REF_SLUG }}
          echo "::notice ::Published as ${{ github.repository }}:${{ env.GITHUB_REF_SLUG }}"

  lint:
    name: Lint
    runs-on: 'ubuntu-latest'
    steps:
      - uses: actions/checkout@v3
      - uses: actions/setup-node@v3
        with:
          node-version: ${{ env.NODE_VERSION }}
      - name: Cache dependencies
        id: cache
        uses: actions/cache@v3
        with:
          path: ./node_modules
          key: modules-${{ env.NODE_VERSION }}-${{ hashFiles('package-lock.json') }}
      - name: Install dependencies
        if: steps.cache.outputs.cache-hit != 'true'
        run: npm ci
      - name: Lint
        run: npm run lint

  cypress-tests:
    name: Cypress tests
    runs-on: ubuntu-latest
    needs: build-image
    if: ${{ success() || needs.build-image.result == 'skipped' }}
    services:
      frontend:
        image: ${{ github.repository }}:${{ github.sha }}
        env:
          EDU_SHARING_API_URL: https://redaktion.openeduhub.net/edu-sharing/rest
        ports:
          - 8080:80
    steps:
      - uses: actions/checkout@v3
      - uses: actions/setup-node@v3
        with:
          node-version: ${{ env.NODE_VERSION }}
      - name: Cypress run
        uses: cypress-io/github-action@v4
        env:
          CYPRESS_baseUrl: http://localhost:8080
          # We cannot guarantee that the given Edu-Sharing instance allows localhost with
          # 'Access-Control-Allow-Origin'.
          CYPRESS_chromeWebSecurity: false
        with:
          working-directory: e2e-cypress
      - uses: actions/upload-artifact@v1
        if: failure()
        with:
          name: cypress-screenshots
          path: e2e-cypress/cypress/screenshots

  build-web-components:
    name: Build web components
    runs-on: 'ubuntu-latest'
    steps:
      - uses: actions/checkout@v3
      - uses: actions/setup-node@v3
        with:
          node-version: ${{ env.NODE_VERSION }}
      - name: Cache dependencies
        id: cache
        uses: actions/cache@v3
        with:
          path: ./node_modules
          key: modules-${{ env.NODE_VERSION }}-${{ hashFiles('package-lock.json') }}
      - name: Install dependencies
        if: steps.cache.outputs.cache-hit != 'true'
        run: npm ci
      - name: Build web components
        run: npm run build:web-components
      - uses: actions/upload-artifact@v1
        with:
          name: web-components
          path: dist/web-components