name: Code Coverage Report

on:
  # Verify
  push:
    branches:
      - trunk
    paths:
      - '.github/workflows/test-coverage.yml'
      - 'docker-compose.yml'
      - 'phpunit.xml.dist'
      - 'tests/phpunit/multisite.xml'
  pull_request:
    branches:
      - trunk
    paths:
      - '.github/workflows/test-coverage.yml'
      - 'docker-compose.yml'
      - 'phpunit.xml.dist'
      - 'tests/phpunit/multisite.xml'
  # Once daily at 00:00 UTC.
  schedule:
    - cron: '0 0 * * *'
  # Allow manually triggering the workflow.
  workflow_dispatch:

env:
  PUPPETEER_SKIP_CHROMIUM_DOWNLOAD: ${{ true }}
  LOCAL_PHP: '7.4-fpm'
  LOCAL_PHP_XDEBUG: true
  LOCAL_PHP_XDEBUG_MODE: 'coverage'
  LOCAL_PHP_MEMCACHED: ${{ false }}

jobs:
  # Runs the PHPUnit tests for WordPress.
  #
  # Performs the following steps:
  # - Sets environment variables.
  # - Checks out the repository.
  # - Sets up Node.js.
  # - Sets up PHP.
  # - Installs Composer dependencies.
  # - Installs npm dependencies
  # - Logs general debug information about the runner.
  # - Logs Docker debug information (about the Docker installation within the runner).
  # - Starts the WordPress Docker container.
  # - Logs the running Docker containers.
  # - Logs debug information about what's installed within the WordPress Docker containers.
  # - Install WordPress within the Docker container.
  # - Run the PHPUnit tests as a single site.
  # - Ensures version-controlled files are not modified or deleted.
  # - Upload the single site code coverage report to Codecov.io.
  # - Run the PHPUnit tests as a multisite installation.
  # - Ensures version-controlled files are not modified or deleted.
  # - Upload the multisite code coverage report to Codecov.io.
  test-coverage-report:
    name: ${{ matrix.multisite && 'Multisite' || 'Single site' }} report
    runs-on: ubuntu-latest
    timeout-minutes: 120
    if: ${{ github.repository == 'WordPress/wordpress-develop' }}
    strategy:
      fail-fast: false
      matrix:
        multisite: [ false, true ]

    steps:
      - name: Configure environment variables
        run: |
          echo "PHP_FPM_UID=$(id -u)" >> $GITHUB_ENV
          echo "PHP_FPM_GID=$(id -g)" >> $GITHUB_ENV

      - name: Checkout repository
        uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8 # v3.1.0

      - name: Set up Node.js
        uses: actions/setup-node@8c91899e586c5b171469028077307d293428b516 # v3.5.1
        with:
          node-version-file: '.nvmrc'
          cache: npm

      ##
      # This allows Composer dependencies to be installed using a single step.
      #
      # Since the tests are currently run within the Docker containers where the PHP version varies,
      # the same PHP version needs to be configured for the action runner machine so that the correct
      # dependency versions are installed and cached.
      ##
      - name: Set up PHP
        uses: shivammathur/setup-php@1a18b2267f80291a81ca1d33e7c851fe09e7dfc4 # v2.22.0
        with:
          php-version: '7.4'
          coverage: none

      # Since Composer dependencies are installed using `composer update` and no lock file is in version control,
      # passing a custom cache suffix ensures that the cache is flushed at least once per week.
      - name: Install Composer dependencies
        uses: ramsey/composer-install@83af392bf5f031813d25e6fe4cd626cdba9a2df6 # v2.2.0
        with:
          custom-cache-suffix: $(/bin/date -u --date='last Mon' "+%F")

      - name: Install npm Dependencies
        run: npm ci

      - name: Log debug information
        run: |
          echo "$GITHUB_REF"
          echo "$GITHUB_EVENT_NAME"
          npm --version
          node --version
          curl --version
          git --version
          svn --version
          composer --version
          locale -a

      - name: Docker debug information
        run: |
          docker -v
          docker-compose -v

      - name: Start Docker environment
        run: |
          npm run env:start

      - name: Log running Docker containers
        run: docker ps -a

      - name: WordPress Docker container debug information
        run: |
          docker-compose run --rm mysql mysql --version
          docker-compose run --rm php php --version
          docker-compose run --rm php php -m
          docker-compose run --rm php php -i
          docker-compose run --rm php locale -a

      - name: Install WordPress
        run: npm run env:install

      - name: Run tests as a single site
        if: ${{ ! matrix.multisite }}
        run: npm run test:php -- --verbose -c phpunit.xml.dist --coverage-clover wp-code-coverage-single-clover-${{ github.sha }}.xml

      - name: Ensure version-controlled files are not modified during the tests
        run: git diff --exit-code

      - name: Upload single site report to Codecov
        if: ${{ ! matrix.multisite && github.event_name != 'pull_request' }}
        uses: codecov/codecov-action@d9f34f8cd5cb3b3eb79b3e4b5dae3a16df499a70 # v3.1.1
        with:
          file: wp-code-coverage-single-clover-${{ github.sha }}.xml
          flags: single,php
          fail_ci_if_error: true

      - name: Run tests as a multisite install
        if: ${{ matrix.multisite }}
        run: npm run test:php -- --verbose -c tests/phpunit/multisite.xml --coverage-clover wp-code-coverage-multisite-clover-${{ github.sha }}.xml

      - name: Ensure version-controlled files are not modified during the tests
        run: git diff --exit-code

      - name: Upload multisite report to Codecov
        if: ${{ matrix.multisite && github.event_name != 'pull_request' }}
        uses: codecov/codecov-action@d9f34f8cd5cb3b3eb79b3e4b5dae3a16df499a70 # v3.1.1
        with:
          file: wp-code-coverage-multisite-clover-${{ github.sha }}.xml
          flags: multisite,php
          fail_ci_if_error: true

  slack-notifications:
    name: Slack Notifications
    uses: WordPress/wordpress-develop/.github/workflows/slack-notifications.yml@trunk
    needs: [ test-coverage-report ]
    if: ${{ github.repository == 'WordPress/wordpress-develop' && github.event_name != 'pull_request' && always() }}
    with:
      calling_status: ${{ needs.test-coverage-report.result == 'success' && 'success' || needs.test-coverage-report.result == 'cancelled' && 'cancelled' || 'failure' }}
    secrets:
      SLACK_GHA_SUCCESS_WEBHOOK: ${{ secrets.SLACK_GHA_SUCCESS_WEBHOOK }}
      SLACK_GHA_CANCELLED_WEBHOOK: ${{ secrets.SLACK_GHA_CANCELLED_WEBHOOK }}
      SLACK_GHA_FIXED_WEBHOOK: ${{ secrets.SLACK_GHA_FIXED_WEBHOOK }}
      SLACK_GHA_FAILURE_WEBHOOK: ${{ secrets.SLACK_GHA_FAILURE_WEBHOOK }}

  failed-workflow:
    name: Failed workflow tasks
    runs-on: ubuntu-latest
    needs: [ test-coverage-report, slack-notifications ]
    if: |
      always() &&
      github.repository == 'WordPress/wordpress-develop' &&
      github.event_name != 'pull_request' &&
      github.run_attempt < 2 &&
      (
        needs.test-coverage-report.result == 'cancelled' || needs.test-coverage-report.result == 'failure'
      )

    steps:
      - name: Dispatch workflow run
        uses: actions/github-script@100527700e8b29ca817ac0e0dfbfc5e8ff38edda # v6.3.2
        with:
          retries: 2
          retry-exempt-status-codes: 418
          script: |
            github.rest.actions.createWorkflowDispatch({
              owner: context.repo.owner,
              repo: context.repo.repo,
              workflow_id: 'failed-workflow.yml',
              ref: 'trunk',
              inputs: {
                run_id: '${{ github.run_id }}'
              }
            });