auto-label-issues.yml

name: Auto Label Issues
on:
  issues:
    types: [opened]
jobs:
  auto-label:
    runs-on: ubuntu-latest
    permissions:
      issues: write
    steps:
      - uses: actions/github-script@v7
        with:
          script: |
            const body = context.payload.issue.body || '';
            const labels = [];

            // =====================
            // 1. DETECTION (all labels gathered before any apply)
            // =====================

            // --- Detect commands owned by other teams ---
            const commandMatch = body.match(/### Command\s*\n\s*(.+)/);
            const command = commandMatch ? commandMatch[1].trim().toLowerCase() : '';

            const otherTeamCommands = [
              { match: 'project deploy pipeline', area: 'area:devops' },
              { match: 'devops', area: 'area:devops' },
              { match: 'org create shape', area: 'area:signups' },
              { match: 'org create snapshot', area: 'area:signups' },
            ];

            // Sort longest match first to avoid partial matches
            otherTeamCommands.sort((a, b) => b.match.length - a.match.length);
            for (const { match, area } of otherTeamCommands) {
              if (command.includes(match)) {
                labels.push(area);
                labels.push('owned by another team');
                break;
              }
            }

            // Agent commands — match "sf agent" but not flags like --agent
            if (/\bsf\s+agent\b/.test(command) || /^agent\b/.test(command)) {
              labels.push('area:afdx');
              labels.push('bug');
              if (!labels.includes('owned by another team')) labels.push('owned by another team');
            }

            // --- Parse regression ---
            const regressionMatch = body.match(/### Did this work before\?\s*\n\s*(.+)/);
            const regression = regressionMatch ? regressionMatch[1].trim() : '';

            if (regression === 'Yes, this is a regression') labels.push('regression');

            // =====================
            // 2. APPLY LABELS (single pass, all labels at once)
            // =====================

            const labelColors = {
              'owned by another team':  { color: 'e99695', description: 'Bug is owned by another team' },
            };

            const uniqueLabels = [...new Set(labels)];

            // Create labels that don't exist yet (area: labels already exist on repo)
            for (const name of uniqueLabels) {
              const config = labelColors[name];
              if (!config) continue;
              try {
                await github.rest.issues.getLabel({
                  owner: context.repo.owner,
                  repo: context.repo.repo,
                  name,
                });
              } catch (e) {
                if (e.status === 404) {
                  await github.rest.issues.createLabel({
                    owner: context.repo.owner,
                    repo: context.repo.repo,
                    name,
                    color: config.color,
                    description: config.description,
                  });
                }
              }
            }

            // Apply all labels at once
            if (uniqueLabels.length > 0) {
              await github.rest.issues.addLabels({
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: context.issue.number,
                labels: uniqueLabels,
              });
            }

            console.log(`Labels applied: ${uniqueLabels.join(', ') || 'none'}`);