# Author: Ahmad Samir <a.atta@exp-sa.com>
      name: Auto Delete Branch After Merge
      
      on:
        pull_request:
          types: [closed]  # triggers when PR is closed (merged or just closed)
      
      jobs:
        delete-merged-branch:
          if: github.event.pull_request.merged == true
          name: Delete Merged Branch
          runs-on: app-sever-project-runner  # your self-hosted runner
      
          steps:
            - name: Delete merged branch (with rules)
              env:
                GH_TOKEN: ${{ secrets.GH_TOKEN }}
                REPO: ${{ github.repository }}
                BASE_REF: ${{ github.event.pull_request.base.ref }}
                HEAD_REF: ${{ github.event.pull_request.head.ref }}
              run: |
                echo "🔍 Base branch: $BASE_REF"
                echo "🔍 Head branch: $HEAD_REF"
      
                # ❌ Do not delete dev_* merged into preprod_*
                if [[ "$HEAD_REF" == dev_* && "$BASE_REF" == preprod_* ]]; then
                  echo "🚫 Rule: Do not delete dev_* merged into preprod_*"
                  exit 0
                fi
      
                # ❌ Do not delete preprod_* merged into master_*
                if [[ "$HEAD_REF" == preprod_* && "$BASE_REF" == master_* ]]; then
                  echo "🚫 Rule: Do not delete preprod_* merged into master_*"
                  exit 0
                fi
      
                echo "✅ Allowed to delete '$HEAD_REF' from '$REPO'"
      
                curl -s -X DELETE                   -H "Authorization: token $GH_TOKEN"                   -H "Accept: application/vnd.github.v3+json"                   https://api.github.com/repos/$REPO/git/refs/heads/$HEAD_REF                   -w "
🧹 Deleted branch '$HEAD_REF' from '$REPO' — HTTP %{http_code}
"