# caution: this whole file was written using Claude 3.7 Sonnet
name: Auto Label Cherry-Pick

on:
  pull_request:
    types: [opened, synchronize, reopened]

jobs:
  add-label:
    runs-on: ubuntu-latest
    container:
      image: node:16-alpine
    permissions:
      pull-requests: write
    steps:
      - name: Add label to cherry-pick PRs
        uses: actions/github-script@v6
        with:
          script: |
            const pr = context.payload.pull_request;
            const headBranch = pr.head.ref;
            const baseBranch = pr.base.ref;

            // Check if head branch contains cherry-pick pattern or base branch starts with release/
            const isCherryPick = /cherry.*pick/i.test(headBranch);
            const isReleaseTarget = baseBranch.startsWith('release/');

            if (isCherryPick || isReleaseTarget) {
              // Label to apply
              const labelToAdd = 'cherry-pick';

              // Try to add the label
              try {
                await github.rest.issues.addLabels({
                  owner: context.repo.owner,
                  repo: context.repo.repo,
                  issue_number: pr.number,
                  labels: [labelToAdd]
                });
                console.log(`Added label "${labelToAdd}" to PR #${pr.number}`);
              } catch (error) {
                console.error(`Error adding label: ${error.message}`);
              }
            } else {
              console.log('PR does not match criteria for automatic labeling');
            }