name: Auto-merge sync PRs
on:
  pull_request:
    types: [labeled, opened, synchronize, reopened]
jobs:
  auto-merge:
    runs-on: ubuntu-latest
    if: contains(github.event.pull_request.labels.*.name, 'sync')
    steps:
      - name: Set token for author
        id: set-token
        run: |
          PR_AUTHOR="${{ github.event.pull_request.user.login }}"
          echo "author=$PR_AUTHOR" >> $GITHUB_OUTPUT

          case "$PR_AUTHOR" in
            "wintonzheng")
              echo "token_name=WINTON_GH_PAT" >> $GITHUB_OUTPUT
              ;;
            "LawyZheng")
              echo "token_name=LAWY_GH_PAT" >> $GITHUB_OUTPUT
              ;;
            "suchintan")
              echo "token_name=SUCHINTAN_GH_PAT" >> $GITHUB_OUTPUT
              ;;
            "pedrohsdb")
              echo "token_name=PEDRO_GH_PAT" >> $GITHUB_OUTPUT
              ;;
            "marcmuon")
              echo "token_name=MARC_GH_PAT" >> $GITHUB_OUTPUT
              ;;
            "celalzamanoglu")
              echo "token_name=CELAL_GH_PAT" >> $GITHUB_OUTPUT
              ;;
            *)
              echo "token_name=" >> $GITHUB_OUTPUT
              echo "Author $PR_AUTHOR is not in the approved list"
              ;;
          esac
      - name: Auto-merge PR
        if: steps.set-token.outputs.token_name != ''
        run: |
          echo "Merging PR for author ${{ steps.set-token.outputs.author }}"
          gh pr merge ${{ github.event.pull_request.number }} \
            --repo ${{ github.repository }} \
            --squash \
            --admin
        env:
          GH_TOKEN: ${{ secrets[steps.set-token.outputs.token_name] }}