name: PR Labeler

on:
  pull_request_target:
    types: [opened, synchronize, reopened, edited]

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

jobs:
  label:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/labeler@v5
        with:
          repo-token: ${{ secrets.GITHUB_TOKEN }}

      - name: Propagate labels from linked issues
        uses: actions/github-script@v7
        with:
          script: |
            const allowed = new Set([
              'sdk-python', 'sdk-typescript', 'vector-store', 'openclaw',
              'rest-api', 'openmemory', 'documentation', 'ci', 'cli', 'integrations',
            ]);
            const body = context.payload.pull_request.body || '';
            const matches = [...body.matchAll(/\b(?:close[sd]?|fix(?:e[sd])?|resolve[sd]?)\s*:?\s*(?:#|https:\/\/github\.com\/mem0ai\/mem0\/issues\/)(\d+)/gi)];
            const numbers = [...new Set(matches.map((m) => Number(m[1])))];

            const labels = new Set();
            for (const issue_number of numbers) {
              let issue;
              try {
                ({ data: issue } = await github.rest.issues.get({
                  owner: context.repo.owner,
                  repo: context.repo.repo,
                  issue_number,
                }));
              } catch {
                continue;
              }
              if (issue.pull_request) continue;
              for (const label of issue.labels) {
                if (allowed.has(label.name)) labels.add(label.name);
              }
            }

            if (labels.size > 0) {
              await github.rest.issues.addLabels({
                owner: context.repo.owner,
                repo: context.repo.repo,
                issue_number: context.issue.number,
                labels: [...labels],
              });
            }