assignment-limit.yml

name: Enforce Assignment Limits
on:
  issues:
    types: [assigned]
  pull_request:
    types: [opened, reopened, ready_for_review]

jobs:
  check-limits:
    runs-on: ubuntu-latest
    steps:
      - name: Enforce Max 3 Assignments
        uses: actions/github-script@v6
        with:
          script: |
            const username = context.payload.assignee ? context.payload.assignee.login : context.payload.sender.login;
            
            // Fetch all open issues and PRs assigned to this user
            const { data: issues } = await github.rest.search.issuesAndPullRequests({
              q: `repo:${context.repo.owner}/${context.repo.repo} assignee:${username} state:open`
            });
            
            if (issues.total_count > 3) {
              const message = `@${username} You already have ${issues.total_count} active assignments. To keep the project moving, we limit contributors to 3 active issues/PRs at a time. Please complete your existing tasks first!`;
              
              if (context.eventName === 'issues') {
                await github.rest.issues.createComment({ ...context.repo, issue_number: context.issue.number, body: message });
                await github.rest.issues.removeAssignees({ ...context.repo, issue_number: context.issue.number, assignees: [username] });
              } else if (context.eventName === 'pull_request') {
                await github.rest.issues.createComment({ ...context.repo, issue_number: context.payload.pull_request.number, body: message });
                await github.rest.pulls.update({ ...context.repo, pull_number: context.payload.pull_request.number, state: 'closed' });
              }
            }