name: Sync to Hugging Face Spaces

on:
  push:
    branches: [main]

  workflow_dispatch:

jobs:
  sync-to-hub:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          fetch-depth: 0
          lfs: true

      - name: Push to Hugging Face Space
        env:
          HF_TOKEN: ${{ secrets.HF_TOKEN }}
          HF_USERNAME: ${{ secrets.HF_USERNAME }}
          SPACE_NAME: ${{ secrets.HF_SPACE_NAME }}
        run: |
          git config --global user.email "bot@github.com"
          git config --global user.name "GitHub Actions Bot"

          if [ -z "$HF_TOKEN" ] || [ -z "$HF_USERNAME" ] || [ -z "$SPACE_NAME" ]; then
            echo "Error: Missing required secrets"
            echo "Please set HF_TOKEN, HF_USERNAME, and HF_SPACE_NAME in repository secrets"
            exit 1
          fi

          git remote add space https://$HF_USERNAME:$HF_TOKEN@huggingface.co/spaces/$HF_USERNAME/$SPACE_NAME || true
          
          # Create a temporary orphan branch to squash history
          # This avoids pushing historical binary blobs that HF rejects
          git checkout --orphan sync-branch
          git lfs install
          git add -A
          git commit -m "Sync: $(date)"
          
          # Push to Hugging Face
          git push --force space sync-branch:main

      - name: Verify deployment
        env:
          HF_USERNAME: ${{ secrets.HF_USERNAME }}
          SPACE_NAME: ${{ secrets.HF_SPACE_NAME }}
        run: |
          echo "Deployment completed!"
          echo "Check your Space at: https://huggingface.co/spaces/$HF_USERNAME/$SPACE_NAME"
          echo "API endpoint: https://$HF_USERNAME-$SPACE_NAME.hf.space"