name: Issue Triage Gate

on:
  issues:
    types: [opened]

permissions:
  issues: write

jobs:
  check-agent-diagnostic:
    runs-on: ubuntu-latest
    # Only run on bug reports (title starts with "bug:")
    if: startsWith(github.event.issue.title, 'bug:')
    steps:
      - name: Check for agent diagnostic section
        uses: actions/github-script@v7
        with:
          script: |
            const body = context.payload.issue.body || '';

            // Check if the Agent Diagnostic section has substantive content.
            // GitHub issue forms render textarea labels as h3 headings, but
            // issues created through gh or API clients often use h2 headings.
            const diagnosticMatch = body.match(
              /^#{2,4}\s+Agent Diagnostic[s]?\s*\n([\s\S]*?)(?=\n#{2,4}\s+|$)/im
            );

            const diagnosticText = diagnosticMatch?.[1].trim() || '';
            const hasSubstantiveDiagnostic = diagnosticText.length > 0
              && !diagnosticText.toLowerCase().startsWith('example:')
              && !['n/a', 'none', 'no', 'not applicable'].includes(diagnosticText.toLowerCase());

            if (hasSubstantiveDiagnostic) {
              console.log('Agent diagnostic section found with content. Passing.');
              return;
            }

            console.log('Agent diagnostic section missing or placeholder. Flagging.');

            // Add state:triage-needed label
            await github.rest.issues.addLabels({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: context.issue.number,
              labels: ['state:triage-needed']
            });