auto-assign.yml

name: Auto Assign Owner

on:
  issues:
    types: [opened]
  pull_request_target:
    types: [opened]

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

jobs:
  check-and-assign:
    runs-on: ubuntu-latest
    steps:
      - name: Check collaborator count and assign owner
        uses: actions/github-script@v8
        with:
          script: |
            const owner = context.repo.owner;
            const repo = context.repo.repo;

            // Get collaborators with push or admin access
            const { data: collaborators } = await github.rest.repos.listCollaborators({
              owner,
              repo,
              permission: 'push'
            });

            // Filter to only users with push or admin (not just read)
            const pushCollaborators = collaborators.filter(c =>
              c.permissions?.push || c.permissions?.admin
            );

            console.log(`Found ${pushCollaborators.length} collaborators with push access`);

            // Only auto-assign if there's 1 or fewer collaborators with push access
            if (pushCollaborators.length > 1) {
              console.log('Multiple collaborators found, skipping auto-assign');
              return;
            }

            // Determine the assignee (repo owner)
            const assignee = owner;

            if (context.eventName === 'issues') {
              const issue = context.payload.issue;

              // Skip if already assigned
              if (issue.assignees && issue.assignees.length > 0) {
                console.log('Issue already has assignees, skipping');
                return;
              }

              // Skip if author is a bot
              if (issue.user.type === 'Bot') {
                console.log('Issue author is a bot, skipping');
                return;
              }

              await github.rest.issues.addAssignees({
                owner,
                repo,
                issue_number: issue.number,
                assignees: [assignee]
              });

              console.log(`Assigned issue #${issue.number} to ${assignee}`);

            } else if (context.eventName === 'pull_request_target') {
              const pr = context.payload.pull_request;

              // Skip if already assigned
              if (pr.assignees && pr.assignees.length > 0) {
                console.log('PR already has assignees, skipping');
                return;
              }

              // Skip if author is a bot
              if (pr.user.type === 'Bot') {
                console.log('PR author is a bot, skipping');
                return;
              }

              await github.rest.issues.addAssignees({
                owner,
                repo,
                issue_number: pr.number,
                assignees: [assignee]
              });

              console.log(`Assigned PR #${pr.number} to ${assignee}`);
            }