name: Rebase release_4.6-next and stable-2.6

on:
  push:
    branches:
      - release_4.6
  workflow_dispatch:
    # Allows manual triggering of the workflow from the GitHub UI

jobs:
  rebase:
    runs-on: ubuntu-latest
    permissions:
      contents: write
    strategy:
      matrix:
        target_branch:
          - release_4.6-next
          - stable-2.6
    steps:
      - name: Checkout ${{ matrix.target_branch }} Branch
        uses: actions/checkout@v4
        with:
          ref: ${{ matrix.target_branch }}
          token: ${{ secrets.GITHUB_TOKEN }}

      - name: Fetch release_4.6 Branch for ${{ matrix.target_branch }}
        run: git fetch origin release_4.6:release_4.6

      - name: Attempt Rebase release_4.6 into ${{ matrix.target_branch }}
        id: rebase_attempt
        run: |
          git config user.name "GitHub Actions"
          git config user.email "github-actions[bot]@users.noreply.github.com"
          git checkout ${{ matrix.target_branch }}
          git rebase release_4.6 || true
        continue-on-error: true # Allow this step to fail without stopping the workflow immediately

      - name: Check for Conflicts and Abort if Necessary for ${{ matrix.target_branch }}
        run: |
          if git status --porcelain | grep "^UU"; then
            echo "::error::Rebase failed for ${{ matrix.target_branch }} due to merge conflicts. Aborting rebase."
            git rebase --abort
            exit 1 # Fail the job explicitly
          else
            echo "Rebase for ${{ matrix.target_branch }} completed without conflicts."
          fi

      - name: Force Push Rebased ${{ matrix.target_branch }} Branch
        if: success() && steps.rebase_attempt.outcome != 'failure'
        run: |
          git push --force origin ${{ matrix.target_branch }}