name: Auto Merge Downstream Branches

on:
  push:
    branches:
      - production
      - staging

jobs:
  auto-merge:
    runs-on: k8s-runner-02

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0 # Required for merging branches

      - name: Set up Git user
        run: |
          git config user.name "Gitea Auto Merge Bot"
          git config user.email "actions@local.gitea"

      # 🔹 If push to production, merge to staging
      - name: Merge production → staging
        if: gitea.ref == 'refs/heads/production'
        run: |
          git fetch origin staging
          git checkout staging
          git merge origin/production --no-edit || true
          git push origin staging

      # 🔹 If push to staging, merge to development
      - name: Merge staging → development
        if: gitea.ref == 'refs/heads/staging'
        run: |
          git fetch origin development
          git checkout development
          git merge origin/staging --no-edit || true
          git push origin development