name: PR Open Limit

on:
  pull_request_target:
    types:
      - opened
      - reopened
      - ready_for_review

concurrency:
  group: ${{ github.workflow }}-${{ github.event.pull_request.number }}
  cancel-in-progress: true

permissions:
  contents: read
  pull-requests: write
  issues: write

jobs:
  check-open-limit:
    name: Check Open Pull Request Limit
    runs-on: ubuntu-latest
    timeout-minutes: 10
    # Advisory: a script failure must not put a red cross on the pull request.
    continue-on-error: true
    if: ${{ github.repository == 'GreptimeTeam/greptimedb' }}
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Setup Node.js
        uses: actions/setup-node@v4
        with:
          node-version: '20'

      - name: Install dependencies
        working-directory: .github/scripts
        run: npm ci

      - name: Check open pull request limit
        working-directory: .github/scripts
        run: node pr-open-limit.js
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
          PR_NUMBER: ${{ github.event.pull_request.number }}
          PR_AUTHOR: ${{ github.event.pull_request.user.login }}
          PR_IS_DRAFT: ${{ github.event.pull_request.draft }}
          MAX_OPEN_PRS: ${{ vars.MAX_OPEN_PRS_PER_AUTHOR || 5 }}