# This workflow is localized from host-uk/.github/.github/workflows/auto-merge.yml@dev
# because the reusable version is currently failing due to missing git context.
# See: https://github.com/host-uk/core/actions/runs/21697467567/job/62570690752
name: Auto Merge

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

permissions:
  contents: write
  pull-requests: write

jobs:
  merge:
    runs-on: ubuntu-latest
    steps:
      - name: Auto Merge
        uses: actions/github-script@v7
        env:
          PR_NUMBER: ${{ github.event.pull_request.number }}
        with:
          github-token: ${{ github.token }}
          script: |
            const author = context.payload.pull_request.user.login;
            const association = context.payload.pull_request.author_association;

            // Trusted bot accounts (act as org members)
            const trustedBots = ['google-labs-jules[bot]'];
            const isTrustedBot = trustedBots.includes(author);

            // Check author association
            const trusted = ['MEMBER', 'OWNER', 'COLLABORATOR'];
            if (!isTrustedBot && !trusted.includes(association)) {
              core.info(`${author} is ${association} — skipping auto-merge`);
              return;
            }

            await exec.exec('gh', [
              'pr', 'merge', process.env.PR_NUMBER,
              '--auto',
              '--repo', `${context.repo.owner}/${context.repo.repo}`,
              '--merge'
            ], {
              env: {
                ...process.env,
                GH_TOKEN: '${{ github.token }}'
              }
            });
            core.info(`Auto-merge enabled for #${process.env.PR_NUMBER}`);