name: Test

on:
  # Run on pushes to `master` and on all pull requests.
  # Prevent the build from running when there are only irrelevant changes.
  push:
    branches:
      - master
    paths-ignore:
      - '**.md'
  pull_request:
  # Allow manually triggering the workflow.
  workflow_dispatch:

# Cancels all previous workflow runs for the same branch that have not yet completed.
concurrency:
  # The concurrency group contains the workflow name and the branch name.
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  build:
    runs-on: ubuntu-latest
    name: "Build Phar on PHP: 8.0"

    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Setup PHP
        uses: shivammathur/setup-php@v2
        with:
          php-version: '8.0'
          coverage: none
          ini-values: phar.readonly=Off, error_reporting=-1, display_errors=On

      - name: Build the phar
        run: php scripts/build-phar.php

      - name: Upload the PHPCS phar
        uses: actions/upload-artifact@v4
        with:
          name: phpcs-phar
          path: ./phpcs.phar
          if-no-files-found: error
          retention-days: 28

      - name: Upload the PHPCBF phar
        uses: actions/upload-artifact@v4
        with:
          name: phpcbf-phar
          path: ./phpcbf.phar
          if-no-files-found: error
          retention-days: 28

      # Both the below only check a file which is rarely changed and therefore unlikely to have issues.
      # This test is about testing that the phars are functional, *not* about whether the code style complies.
      - name: 'PHPCS: check code style using the Phar file to test the Phar is functional'
        run: php phpcs.phar ./scripts

      - name: 'PHPCBF: fix code style using the Phar file to test the Phar is functional'
        run: php phpcbf.phar ./scripts

  test:
    runs-on: ubuntu-latest
    needs: build

    strategy:
      # Keys:
      # - custom_ini: Whether to run with specific custom ini settings to hit very specific
      #   code conditions.
      matrix:
        php: ['5.4', '5.5', '5.6', '7.0', '7.1', '7.2', '7.3', '7.4', '8.0', '8.1', '8.2', '8.3', '8.4']
        custom_ini: [false]

        include:
          # Skip test runs on builds which are also run for in the coverage job.
          # Note: the tests on PHP 7.2 will still be run as the coverage build is uses custom_ini for that version.
          - php: '5.4'
            skip_tests: true
          - php: '8.3'
            skip_tests: true

          # Extra builds running only the unit tests with different PHP ini settings.
          - php: '5.5'
            custom_ini: true
          - php: '7.0'
            custom_ini: true

    name: "PHP: ${{ matrix.php }} ${{ matrix.custom_ini && ' with custom ini settings' || '' }}"

    continue-on-error: ${{ matrix.php == '8.4' }}

    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Setup ini config
        id: set_ini
        run: |
          # Set the "short_open_tag" ini to make sure specific conditions are tested.
          # Also turn on error_reporting to ensure all notices are shown.
          if [[ ${{ matrix.custom_ini }} == true && "${{ matrix.php }}" == '5.5' ]]; then
            echo 'PHP_INI=error_reporting=-1, display_errors=On, date.timezone=Australia/Sydney, short_open_tag=On, asp_tags=On' >> $GITHUB_OUTPUT
          elif [[ ${{ matrix.custom_ini }} == true && "${{ matrix.php }}" == '7.0' ]]; then
            echo 'PHP_INI=error_reporting=-1, display_errors=On, date.timezone=Australia/Sydney, short_open_tag=On' >> $GITHUB_OUTPUT
          else
            echo 'PHP_INI=error_reporting=-1, display_errors=On' >> $GITHUB_OUTPUT
          fi

      - name: Install PHP
        uses: shivammathur/setup-php@v2
        with:
          php-version: ${{ matrix.php }}
          ini-values: ${{ steps.set_ini.outputs.PHP_INI }}
          coverage: none
          tools: cs2pr

      # This action also handles the caching of the dependencies.
      - name: Set up node
        if: ${{ matrix.custom_ini == false }}
        uses: actions/setup-node@v4
        with:
          node-version: '20'

      - name: Install external tools used in tests
        if: ${{ matrix.custom_ini == false }}
        run: >
          npm install -g --fund false
          csslint
          eslint
          jshint

      # Install dependencies and handle caching in one go.
      # @link https://github.com/marketplace/actions/install-php-dependencies-with-composer
      - name: Install Composer dependencies
        uses: "ramsey/composer-install@v2"
        with:
          composer-options: ${{ matrix.php == '8.4' && '--ignore-platform-req=php' || '' }}
          custom-cache-suffix: $(date -u "+%Y-%m")

      # Note: The code style check is run multiple times against every PHP version
      # as it also acts as an integration test.
      - name: 'PHPCS: set the path to PHP'
        run: php bin/phpcs --config-set php_path php

      - name: 'PHPUnit: run the tests without code coverage'
        if: ${{ matrix.skip_tests != true }}
        run: vendor/bin/phpunit tests/AllTests.php --no-coverage

      - name: 'PHPCS: check code style without cache, no parallel'
        if: ${{ matrix.custom_ini == false && matrix.php != '7.4' }}
        run: php bin/phpcs --no-cache --parallel=1

      - name: 'PHPCS: check code style to show results in PR'
        if: ${{ matrix.custom_ini == false && matrix.php == '7.4' }}
        id: phpcs
        run: php bin/phpcs --no-cache --parallel=1 --report-full --report-checkstyle=./phpcs-report.xml

      - name: Show PHPCS results in PR
        if: ${{ always() && steps.phpcs.outcome == 'failure' && matrix.php == '7.4' }}
        run: cs2pr ./phpcs-report.xml

      - name: Download the PHPCS phar
        if: ${{ matrix.custom_ini == false }}
        uses: actions/download-artifact@v4
        with:
          name: phpcs-phar

      # This test specifically tests that the Phar which will be released works correctly on all PHP versions.
      - name: 'PHPCS: check code style using the Phar file'
        if: ${{ matrix.custom_ini == false }}
        run: php phpcs.phar

  coverage:
    runs-on: ubuntu-latest

    strategy:
      matrix:
        include:
          - php: '5.4'
            custom_ini: false
          - php: '7.2'
            custom_ini: true
          - php: '8.3'
            custom_ini: false

    name: "Coverage: ${{ matrix.php }} ${{ matrix.custom_ini && ' with custom ini settings' || '' }}"

    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Setup ini config
        id: set_ini
        run: |
          # Set the "short_open_tag" ini to make sure specific conditions are tested.
          # Also turn on error_reporting to ensure all notices are shown.
          if [[ ${{ matrix.custom_ini }} == true && "${{ startsWith( matrix.php, '5.' ) }}" == true ]]; then
            echo 'PHP_INI=error_reporting=-1, display_errors=On, date.timezone=Australia/Sydney, short_open_tag=On, asp_tags=On' >> $GITHUB_OUTPUT
          elif [[ ${{ matrix.custom_ini }} == true && "${{ startsWith( matrix.php, '7.' ) }}" == true ]]; then
            echo 'PHP_INI=error_reporting=-1, display_errors=On, date.timezone=Australia/Sydney, short_open_tag=On' >> $GITHUB_OUTPUT
          else
            echo 'PHP_INI=error_reporting=-1, display_errors=On' >> $GITHUB_OUTPUT
          fi

      - name: Install PHP
        uses: shivammathur/setup-php@v2
        with:
          php-version: ${{ matrix.php }}
          ini-values: ${{ steps.set_ini.outputs.PHP_INI }}
          coverage: xdebug

      # This action also handles the caching of the dependencies.
      - name: Set up node
        if: ${{ matrix.custom_ini == false }}
        uses: actions/setup-node@v4
        with:
          node-version: '20'

      - name: Install external tools used in tests
        if: ${{ matrix.custom_ini == false }}
        run: >
          npm install -g --fund false
          csslint
          eslint
          jshint

      # Install dependencies and handle caching in one go.
      # @link https://github.com/marketplace/actions/install-php-dependencies-with-composer
      - name: Install Composer dependencies
        uses: "ramsey/composer-install@v2"
        with:
          # Bust the cache at least once a month - output format: YYYY-MM.
          custom-cache-suffix: $(date -u "+%Y-%m")

      - name: 'PHPCS: set the path to PHP'
        run: php bin/phpcs --config-set php_path php

      - name: 'PHPUnit: run the tests with code coverage'
        run: vendor/bin/phpunit tests/AllTests.php

      - name: Upload coverage results to Coveralls
        if: ${{ success() }}
        uses: coverallsapp/github-action@v2
        with:
          format: clover
          file: build/logs/clover.xml
          flag-name: php-${{ matrix.php }}-custom-ini-${{ matrix.custom_ini }}
          parallel: true

  coveralls-finish:
    needs: coverage
    if: always() && needs.coverage.result == 'success'

    runs-on: ubuntu-latest

    steps:
      - name: Coveralls Finished
        uses: coverallsapp/github-action@v2
        with:
          parallel-finished: true
