name: CI

on:
  push:
    branches:
      - main
  pull_request:

jobs:
  build:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        node-version: [20]

    steps:
      - name: Check out repository
        uses: actions/checkout@v4

      - name: Set up Node.js ${{ matrix.node-version }}
        uses: actions/setup-node@v4
        with:
          node-version: ${{ matrix.node-version }}

      - name: Cache npm directory
        uses: actions/cache@v4
        with:
          path: ~/.npm
          key: ${{ runner.os }}-node-${{ matrix.node-version }}-npm-${{ hashFiles('package-lock.json') }}
          restore-keys: |
            ${{ runner.os }}-node-${{ matrix.node-version }}-npm-

      - name: Cache node_modules
        id: node-modules-cache
        uses: actions/cache@v4
        with:
          path: node_modules
          key: ${{ runner.os }}-node-${{ matrix.node-version }}-modules-${{ hashFiles('package-lock.json') }}
          restore-keys: |
            ${{ runner.os }}-node-${{ matrix.node-version }}-modules-

      - name: Install dependencies
        if: steps.node-modules-cache.outputs.cache-hit != 'true'
        run: npm ci

      - name: Install ripgrep
        run: sudo apt-get update && sudo apt-get install -y ripgrep

      - name: Run lint suite
        run: npm run lint

      - name: Build assets
        run: npm run build

      - name: Install Playwright browsers
        run: npx playwright install --with-deps chromium

      - name: Run visual regression tests
        id: visual
        run: npm run test:visual
        continue-on-error: true

      - name: Upload Playwright artifacts
        if: steps.visual.outcome == 'failure'
        uses: actions/upload-artifact@v4
        with:
          name: playwright-visual-diffs
          path: |
            playwright-report
            test-results
          if-no-files-found: ignore

      - name: Fail if visual regressions detected
        if: steps.visual.outcome == 'failure'
        run: exit 1

  unit-tests:
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        node-version: [20]
        shard: [1, 2, 3]

    steps:
      - name: Check out repository
        uses: actions/checkout@v4

      - name: Set up Node.js ${{ matrix.node-version }}
        uses: actions/setup-node@v4
        with:
          node-version: ${{ matrix.node-version }}

      - name: Cache npm directory
        uses: actions/cache@v4
        with:
          path: ~/.npm
          key: ${{ runner.os }}-node-${{ matrix.node-version }}-npm-${{ hashFiles('package-lock.json') }}
          restore-keys: |
            ${{ runner.os }}-node-${{ matrix.node-version }}-npm-

      - name: Cache node_modules
        id: node-modules-cache
        uses: actions/cache@v4
        with:
          path: node_modules
          key: ${{ runner.os }}-node-${{ matrix.node-version }}-modules-${{ hashFiles('package-lock.json') }}
          restore-keys: |
            ${{ runner.os }}-node-${{ matrix.node-version }}-modules-

      - name: Install dependencies
        if: steps.node-modules-cache.outputs.cache-hit != 'true'
        run: npm ci

      - name: Run unit tests (shard ${{ matrix.shard }}/3)
        env:
          UNIT_TEST_TIMEOUT_MS: 300000
        run: npm run test:unit:shard${{ matrix.shard }}

  dm-unit-tests:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        node-version: [20]

    steps:
      - name: Check out repository
        uses: actions/checkout@v4

      - name: Set up Node.js ${{ matrix.node-version }}
        uses: actions/setup-node@v4
        with:
          node-version: ${{ matrix.node-version }}

      - name: Cache npm directory
        uses: actions/cache@v4
        with:
          path: ~/.npm
          key: ${{ runner.os }}-node-${{ matrix.node-version }}-npm-${{ hashFiles('package-lock.json') }}
          restore-keys: |
            ${{ runner.os }}-node-${{ matrix.node-version }}-npm-

      - name: Cache node_modules
        id: node-modules-cache
        uses: actions/cache@v4
        with:
          path: node_modules
          key: ${{ runner.os }}-node-${{ matrix.node-version }}-modules-${{ hashFiles('package-lock.json') }}
          restore-keys: |
            ${{ runner.os }}-node-${{ matrix.node-version }}-modules-

      - name: Install dependencies
        if: steps.node-modules-cache.outputs.cache-hit != 'true'
        run: npm ci

      - name: Run DM unit tests
        run: npm run test:dm:unit

  dm-integration-tests:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        node-version: [20]

    steps:
      - name: Check out repository
        uses: actions/checkout@v4

      - name: Set up Node.js ${{ matrix.node-version }}
        uses: actions/setup-node@v4
        with:
          node-version: ${{ matrix.node-version }}

      - name: Cache npm directory
        uses: actions/cache@v4
        with:
          path: ~/.npm
          key: ${{ runner.os }}-node-${{ matrix.node-version }}-npm-${{ hashFiles('package-lock.json') }}
          restore-keys: |
            ${{ runner.os }}-node-${{ matrix.node-version }}-npm-

      - name: Cache node_modules
        id: node-modules-cache
        uses: actions/cache@v4
        with:
          path: node_modules
          key: ${{ runner.os }}-node-${{ matrix.node-version }}-modules-${{ hashFiles('package-lock.json') }}
          restore-keys: |
            ${{ runner.os }}-node-${{ matrix.node-version }}-modules-

      - name: Install dependencies
        if: steps.node-modules-cache.outputs.cache-hit != 'true'
        run: npm ci

      - name: Run DM integration tests
        run: npm run test:dm:integration

  e2e-headless:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        node-version: [20]

    steps:
      - name: Check out repository
        uses: actions/checkout@v4

      - name: Set up Node.js ${{ matrix.node-version }}
        uses: actions/setup-node@v4
        with:
          node-version: ${{ matrix.node-version }}

      - name: Cache npm directory
        uses: actions/cache@v4
        with:
          path: ~/.npm
          key: ${{ runner.os }}-node-${{ matrix.node-version }}-npm-${{ hashFiles('package-lock.json') }}
          restore-keys: |
            ${{ runner.os }}-node-${{ matrix.node-version }}-npm-

      - name: Cache node_modules
        id: node-modules-cache
        uses: actions/cache@v4
        with:
          path: node_modules
          key: ${{ runner.os }}-node-${{ matrix.node-version }}-modules-${{ hashFiles('package-lock.json') }}
          restore-keys: |
            ${{ runner.os }}-node-${{ matrix.node-version }}-modules-

      - name: Install dependencies
        if: steps.node-modules-cache.outputs.cache-hit != 'true'
        run: npm ci

      - name: Install Playwright browsers
        run: npx playwright install --with-deps chromium

      - name: Run headless E2E tests
        run: npm run test:e2e