name: 🔄 Branch Synchronization

on:
  push:
    branches:
      - main

jobs:
  sync-branches:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Set up Git
        run: |
          git config --global user.name 'GitHub Actions'
          git config --global user.email 'actions@github.com'

      - name: Prepare sync branch
        id: branch
        run: |
          echo "SYNC_BRANCH_MAIN_DEV=sync/main-to-dev-$(date +'%Y%m%d')" >> $GITHUB_ENV

      - name: Sync main to dev
        if: github.ref == 'refs/heads/main'
        run: |
          # Sync main to dev
          git checkout main
          SYNC_BRANCH_DEV=${{ env.SYNC_BRANCH_MAIN_DEV }}
          git checkout -B $SYNC_BRANCH_DEV
          DIFF=$(git diff origin/dev...)
          if [ -z "$DIFF" ]; then
            echo "No changes to sync"
            exit 0
          fi
          git push origin $SYNC_BRANCH_DEV -f
          gh pr create --base dev --head $SYNC_BRANCH_DEV --title "Sync main branch to dev branch" --body "Automatic sync" || exit 0
        env:
          GH_TOKEN: ${{ github.token }}