name: Check for Disallowed Non-Maintainer Change

on:
  pull_request_target:
    paths:
      - 'yarn.lock'
      - 'spec/yarn.lock'
      - '.github/workflows/**'
      - '.github/actions/**'
      - '.yarn/**'
      - '.yarnrc.yml'

# SECURITY: This workflow uses pull_request_target and has access to secrets.
# Do NOT checkout or run code from the PR head. All code execution must use
# the base branch only. Adding a ref to PR head would expose secrets to
# untrusted code.
permissions: {}

jobs:
  check-for-non-maintainer-dependency-change:
    name: Check for disallowed non-maintainer change
    if: ${{ github.event.pull_request.user.type != 'Bot' && !github.event.pull_request.draft }}
    permissions:
      contents: read
      pull-requests: write
    runs-on: ubuntu-latest
    steps:
      - name: Get author association
        id: get-author-association
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          AUTHOR_ASSOCIATION=$(gh api /repos/electron/electron/pulls/${{ github.event.pull_request.number }} --jq '.author_association')
          echo "author_association=$AUTHOR_ASSOCIATION" >> "$GITHUB_OUTPUT"
      - name: Check for existing review
        id: check-for-review
        if: ${{ !contains(fromJSON('["MEMBER", "OWNER"]'), steps.get-author-association.outputs.author_association) }}
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          PR_URL: ${{ github.event.pull_request.html_url }}
        run: |
          set -eo pipefail
          REVIEW_COUNT=$(gh pr view $PR_URL --json reviews | jq '[ .reviews[] | select(.author.login == "github-actions") | select(.body | startswith("<!-- disallowed-non-maintainer-change -->")) ] | length')
          if [[ $REVIEW_COUNT -eq 0 ]]; then
            echo "SHOULD_REVIEW=1" >> "$GITHUB_OUTPUT"
          fi
      - name: Request changes
        if: ${{ steps.check-for-review.outputs.SHOULD_REVIEW }}
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          PR_URL: ${{ github.event.pull_request.html_url }}
          PR_AUTHOR: ${{ github.event.pull_request.user.login }}
        run: |
          printf "<!-- disallowed-non-maintainer-change -->\n\nHello @${PR_AUTHOR}! It looks like this pull request touches one of our dependency or CI files, and per [our contribution policy](https://github.com/electron/electron/blob/main/CONTRIBUTING.md#dependencies-upgrades-policy) we do not accept these types of changes in PRs." | gh pr review $PR_URL -r --body-file=-
