name: Sync Fork with Upstream

on:
  schedule:
    # Run every day at 2:00 AM UTC
    - cron: '0 2 * * *'
  workflow_dispatch:
    # Allow manual trigger

jobs:
  sync:
    runs-on: ubuntu-latest
    
    steps:
      - name: Checkout
        uses: actions/checkout@v4
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          fetch-depth: 0
      
      - name: Configure Git
        run: |
          git config user.name "github-actions[bot]"
          git config user.email "github-actions[bot]@users.noreply.github.com"
      
      - name: Sync with upstream
        run: |
          # Add upstream repository
          git remote add upstream https://github.com/shuaiplus/nodewarden.git || true
          
          # Fetch upstream changes
          git fetch upstream
          
          # Check if there are updates
          BEHIND=$(git rev-list --count HEAD..upstream/main)
          
          if [ "$BEHIND" -gt 0 ]; then
            echo "Found $BEHIND commits behind upstream. Syncing..."
            
            # Try to merge upstream/main into current branch
            if git merge upstream/main --no-edit; then
              echo "Merge successful!"
              git push origin main
            else
              echo "Merge conflict detected. Please resolve manually."
              echo "::warning::Failed to auto-sync due to merge conflicts. Manual intervention required."
              exit 1
            fi
          else
            echo "Already up to date with upstream."
          fi
      
      - name: Create summary
        if: always()
        run: |
          echo "## Sync Summary" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY
          echo "- **Upstream**: shuaiplus/nodewarden" >> $GITHUB_STEP_SUMMARY
          echo "- **Branch**: main" >> $GITHUB_STEP_SUMMARY
          echo "- **Status**: ${{ job.status }}" >> $GITHUB_STEP_SUMMARY