name: Frontend
on:
  pull_request

# Cancel in progress workflows on pull_requests.
# https://docs.github.com/en/actions/using-jobs/using-concurrency#example-using-a-fallback-value
concurrency:
  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
  cancel-in-progress: true

jobs:
  # In order to be able to have required checks, a workflow can't be entirely
  # skipped: see https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/collaborating-on-repositories-with-code-quality-features/troubleshooting-required-status-checks#handling-skipped-but-required-checks
  paths-filter:
    name: "Changed files?"
    runs-on: ubuntu-latest
    outputs:
      matches: ${{ steps.filter.outputs.matches }}
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 2  # important, to fetch previous commit

      # workaround for https://github.com/dorny/paths-filter/issues/240
      - id: previous-sha
        run: 'echo "sha=$(git rev-parse HEAD^1)" >> $GITHUB_OUTPUT'

      - uses: dorny/paths-filter@v3
        id: filter
        with:
          base: "${{ steps.previous-sha.outputs.sha }}"
          filters: |
            matches:
              - 'frontend/src/**'
              - 'frontend/*.json'
              - 'frontend/*.js'
              - 'frontend/*.ts'
              - 'frontend/docs/mkdocs.yml'
              - '.github/workflows/frontend-lint-test-build.yaml'

  unit-tests:
    name: Unit Tests
    runs-on: ubuntu-latest
    needs: paths-filter
    if: needs.paths-filter.outputs.matches == 'true'
    strategy:
      matrix:
        node: [20, 22]
    steps:
      # Setup:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          ref: ${{ github.head_ref }}

      - name: Setup Node
        uses: actions/setup-node@v4
        with:
          node-version: ${{ matrix.node }}
          cache: 'yarn'
          cache-dependency-path: frontend/yarn.lock

      - name: Get installed Playwright version
        working-directory: frontend
        id: playwright-version
        run: |
          yarn add @yarnpkg/lockfile
          echo "PLAYWRIGHT_VERSION=$(node scripts/get-resolved-playwright-version.js)" >> $GITHUB_ENV

      - name: Cache playwright binaries
        uses: actions/cache@v4
        id: playwright-cache
        with:
          path: |
            ~/.cache/ms-playwright
          key: ${{ runner.os }}-playwright-${{ env.PLAYWRIGHT_VERSION }}

      - name: Install dependencies
        working-directory: frontend
        env:
          HUSKY: 0
        run: yarn install --frozen-lockfile

      - name: Install Playwright Browsers
        working-directory: frontend
        env:
          HUSKY: 0
        run: yarn playwright install --with-deps
        if: steps.playwright-cache.outputs.cache-hit != 'true'

      - name: Install Playwright Deps
        working-directory: frontend
        env:
          HUSKY: 0
        run: yarn playwright install-deps
        if: steps.playwright-cache.outputs.cache-hit != 'true'

      # Test:
      - name: Unit tests
        working-directory: frontend
        run: yarn test

  integration-tests:
    name: Integration Tests
    needs: paths-filter
    if: needs.paths-filter.outputs.matches == 'true'
    timeout-minutes: 60
    runs-on: ubuntu-latest
    strategy:
      matrix:
        node: [20, 22]
    env:
      E2E_USER_EMAIL: ${{ secrets.E2E_USER_EMAIL }}
      E2E_USER_PASSWORD: ${{ secrets.E2E_USER_PASSWORD }}
      API_BASE_URL: ${{ secrets.API_BASE_URL }}
      working-directory: ./frontend
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Setup Node
        uses: actions/setup-node@v4
        with:
          node-version: ${{ matrix.node }}
          cache: 'yarn'
          cache-dependency-path: frontend/yarn.lock

      - name: Get installed Playwright version
        working-directory: frontend
        id: playwright-version
        run: |
          yarn add @yarnpkg/lockfile
          echo "PLAYWRIGHT_VERSION=$(node scripts/get-resolved-playwright-version.js)" >> $GITHUB_ENV

      - name: Cache playwright binaries
        uses: actions/cache@v4
        id: playwright-cache
        with:
          path: |
            ~/.cache/ms-playwright
          key: ${{ runner.os }}-playwright-${{ env.PLAYWRIGHT_VERSION }}

      - name: Install dependencies
        working-directory: frontend
        run: yarn install --frozen-lockfile

      - name: Install Playwright Browsers
        working-directory: frontend
        env:
          HUSKY: 0
        run: yarn playwright install --with-deps
        if: steps.playwright-cache.outputs.cache-hit != 'true'

      - name: Install Playwright Deps
        working-directory: frontend
        env:
          HUSKY: 0
        run: yarn playwright install-deps
        if: steps.playwright-cache.outputs.cache-hit != 'true'

      - name: Create env file
        working-directory: frontend
        run: |
          touch .env
          echo E2E_USER_EMAIL="${{ secrets.E2E_USER_EMAIL }}" >> .env
          echo E2E_USER_PASSWORD="${{ secrets.E2E_USER_PASSWORD }}" >> .env
          cat .env

      - name: Build frontend
        working-directory: frontend
        run: yarn build
        id: build-frontend

      - name: Run Playwright tests
        working-directory: frontend
        run: yarn playwright test

      - uses: actions/upload-artifact@v4
        if: always()
        with:
          name: playwright-report-node${{ matrix.node }}-${{github.sha}}
          path: frontend/playwright-report/
          retention-days: 30

  lint:
    name: Lint
    runs-on: ubuntu-latest
    needs: paths-filter
    if: needs.paths-filter.outputs.matches == 'true'
    strategy:
      matrix:
        node: [20, 22]
    steps:
      # Setup:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          ref: ${{ github.head_ref }}

      - name: Setup Node
        uses: actions/setup-node@v4
        with:
          node-version: ${{ matrix.node }}
          cache: 'yarn'
          cache-dependency-path: frontend/yarn.lock

      - name: Install dependencies
        working-directory: frontend
        env:
          HUSKY: 0
        run: yarn install --frozen-lockfile

      # Lint:
      - name: Lint
        working-directory: frontend
        run: yarn lint:check

  localize:
    name: Localize
    runs-on: ubuntu-latest
    needs: paths-filter
    if: needs.paths-filter.outputs.matches == 'true'
    strategy:
      matrix:
        node: [20, 22]
    steps:
      # Setup:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          ref: ${{ github.head_ref }}

      - name: Setup Node
        uses: actions/setup-node@v4
        with:
          node-version: ${{ matrix.node }}
          cache: 'yarn'
          cache-dependency-path: frontend/yarn.lock

      - name: Install dependencies
        working-directory: frontend
        env:
          HUSKY: 0
        run: yarn install --frozen-lockfile

      # Localize:
      - name: Localization build dry run
        working-directory: frontend
        run: yarn localize:build

  build:
    name: Build
    runs-on: ubuntu-latest
    needs: paths-filter
    if: needs.paths-filter.outputs.matches == 'true'
    strategy:
      matrix:
        node: [20, 22]
    steps:
      # Setup:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          ref: ${{ github.head_ref }}

      - name: Setup Node
        uses: actions/setup-node@v4
        with:
          node-version: ${{ matrix.node }}
          cache: 'yarn'
          cache-dependency-path: frontend/yarn.lock

      - name: Restore cache
        uses: actions/cache@v4
        with:
          path: frontend/dist
          key: ${{ runner.os }}-btrix-frontend-build-${{ hashFiles('frontend/dist') }}
          restore-keys: |
            ${{ runner.os }}-btrix-frontend-build-

      - name: Install dependencies
        working-directory: frontend
        env:
          HUSKY: 0
        run: yarn install --frozen-lockfile

      # Check build:
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v2
        with:
          driver-opts: network=host

      - name: Build Frontend
        uses: docker/build-push-action@v3
        with:
          context: frontend
          load: true
          tags: webrecorder/browsertrix-frontend:latest
          cache-from: type=gha,scope=frontend
          cache-to: type=gha,scope=frontend,mode=max