name: "M2 Coding Standard"
author: "Mage-OS"
description: "A Github Action that runs the Magento Coding Standard."

inputs:
  php_version:
    type: string
    required: true
    default: "8.2"
    description: "PHP version used to do the coding standard check (default: 8.2)."

  composer_version:
    type: string
    required: true
    default: "2"
    description: "The version of composer to use (default: 2)."

  version:
    type: string
    required: false
    default: "*"
    description: "The version of the coding standard to use (default: latest)."

  severity:
    type: string
    required: false
    default: "5"
    description: "The minimum severity required to display an error or warning (default: 5)"

  warning_severity:
    type: string
    required: false
    default: "8"
    description: "The minimum severity required to display a warning (default: 8)."

  error_severity:
    type: string
    required: false
    default: "8"
    description: "The minimum severity required to display an error (default: 8)."

  baseline_version:
    type: string
    required: false
    default: "*"
    description: "The version of phpcs baseline to use (default: latest)."

  head_repo:
    type: string
    required: true
    description: "The repository full name of the head branch. E.g.: mage-os/mageos-magento2"

  head_ref:
    type: string
    required: true
    description: "The branch name of the head branch. E.g.: main"

runs:
  using: composite
  steps:
    - name: Checkout head
      uses: actions/checkout@v4
      with:
        ref: ${{ inputs.head_ref }}
        repository: ${{ inputs.head_repo }}

    - uses: dorny/paths-filter@v2
      name: Filter changed files
      id: filter
      with:
        list-files: shell
        filters: |
          baseline:
            - modified: '**/**.{php,phtml,graphqls,less,css,html,xml,js}'
          phpcs:
            - added|modified: '**/**.{php,phtml,graphqls,less,css,html,xml,js}'

    - name: Check changed files for PHPcs
      if: steps.filter.outputs.phpcs == 'true'
      shell: bash
      run: |
        echo "One or more files relevant to PHPCS have changed."
        echo "List all the files that have been added or changed: ${{ steps.filter.outputs.phpcs_files }}"

    - name: Setup PHP
      if: steps.filter.outputs.phpcs == 'true'
      uses: shivammathur/setup-php@v2
      with:
        php-version: ${{ inputs.php_version }}
        tools: composer:v${{ inputs.composer_version }}
        coverage: none

    - name: Install coding standards
      if: steps.filter.outputs.phpcs == 'true'
      shell: bash
      run: |
        composer create-project --no-plugins --no-dev \
        magento/magento-coding-standard \
        magento-coding-standard "${{ github.event.inputs.version || '*' }}"

    - name: Install phpcs baseline
      if: steps.filter.outputs.phpcs == 'true'
      working-directory: magento-coding-standard
      shell: bash
      run: |
        composer config --no-plugins allow-plugins.digitalrevolution/php-codesniffer-baseline true
        composer require --dev "digitalrevolution/php-codesniffer-baseline: ${{ github.event.inputs.baseline_version || '*' }}"

    - name: Checkout base
      if: steps.filter.outputs.phpcs == 'true'
      uses: actions/checkout@v4
      with:
        ref: ${{github.event.pull_request.base.ref}}
        repository: ${{github.event.pull_request.base.repo.full_name}}
        path: base

    - name: Create phpcs.baseline.xml from base
      shell: bash
      working-directory: base
      if: steps.filter.outputs.baseline == 'true'
      run: |
        php ${{ github.workspace }}/magento-coding-standard/vendor/bin/phpcs --standard=Magento2 \
        $([ -n "${{ inputs.severity }}" ] && echo "--severity=${{ inputs.severity }}") \
        $([ -n "${{ inputs.warning_severity }}" ] && echo "--warning-severity=${{ inputs.warning_severity }}") \
        $([ -n "${{ inputs.error_severity }}" ] && echo "--error-severity=${{ inputs.error_severity }}") \
        --report=\\DR\\CodeSnifferBaseline\\Reports\\Baseline --report-file=phpcs.baseline.xml \
        ${{ steps.filter.outputs.baseline_files }} || /bin/true

    - name: Copy baseline to head
      if: steps.filter.outputs.baseline == 'true'
      shell: bash
      run: |
        cp ${{ github.workspace }}/base/phpcs.baseline.xml ${{ github.workspace }}/magento-coding-standard/phpcs.baseline.xml

    # Since we ran phpcs in the base folder, the files in phpcs.baseline.xml contain the base folder in the path.
    # We need to remove /base/ so that the phpcs can locate the correct files.
    - name: Remove base dir from phpcs baseline
      if: steps.filter.outputs.baseline == 'true'
      shell: bash
      run: |
        sed -i "s|/base/|/|" ${{ github.workspace }}/magento-coding-standard/phpcs.baseline.xml

    - name: Execute phpcs on head for changed files
      shell: bash
      if: steps.filter.outputs.phpcs == 'true'
      run: |
        php ${{ github.workspace }}/magento-coding-standard/vendor/bin/phpcs --standard=Magento2 \
        $([ -n "${{ inputs.severity }}" ] && echo "--severity=${{ inputs.severity }}") \
        $([ -n "${{ inputs.warning_severity }}" ] && echo "--warning-severity=${{ inputs.warning_severity }}") \
        $([ -n "${{ inputs.error_severity }}" ] && echo "--error-severity=${{ inputs.error_severity }}") \
        ${{ steps.filter.outputs.phpcs_files }}