name: Auto Label Mainline PRs

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

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

            // Debug information
            console.log(`Base Branch: ${baseBranch}`);

            // Check if PR is targeting amd-mainline branch
            const isMainlineTarget = baseBranch === 'amd-mainline';

            if (isMainlineTarget) {
              // Label to apply
              const labelToAdd = 'Merge amd-mainline';

              // 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');
            }