name: Sync to Hugging Face hub
on:
  push:
    branches: [main]

permissions:
  contents: read

jobs:
  sync-to-hub:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 1      # Only get the latest state
          lfs: true           # Download actual LFS files so they can be pushed

      - name: Install Git LFS
        run: git lfs install

      - name: Recreate repo history (single-commit force push)
        run: |
          # 1. Capture the message BEFORE we delete the .git folder
          COMMIT_MSG=$(git log -1 --pretty=%B)
          echo "Syncing commit message: $COMMIT_MSG"

          # 2. DELETE the .git folder. 
          # This turns the repo into a standard folder of files.
          rm -rf .git

          # 3. Re-initialize a brand new git repo
          git init -b main
          git config --global user.name "$HF_USERNAME"
          git config --global user.email "$HF_EMAIL"
          
          # 4. Re-install LFS (needs to be done after git init)
          git lfs install
          
          # 5. Add the remote
          git remote add hf https://$HF_USERNAME:$HF_TOKEN@huggingface.co/spaces/$HF_USERNAME/$HF_REPO_ID
          
          # 6. Add all files
          # Since this is a fresh init, Git sees EVERY file as "New"
          git add .
          
          # 7. Commit and Force Push
          git commit -m "Sync: $COMMIT_MSG"
          git push --force hf main
        env:
          HF_TOKEN: ${{ secrets.HF_TOKEN }}
          HF_USERNAME: ${{ secrets.HF_USERNAME }}
          HF_EMAIL: ${{ secrets.HF_EMAIL }}
          HF_REPO_ID: ${{ secrets.HF_REPO_ID }}