#!/usr/bin/env python3
"""
Setup automatic Hugging Face sync using Git hooks.
This script creates a post-commit hook that automatically uploads
dataset changes to Hugging Face when you commit to Git.
"""

import os
import stat
from pathlib import Path

def setup_git_hook():
    """Setup Git post-commit hook for automatic HF sync."""

    # Find git directory
    current_dir = Path.cwd()
    git_dir = None

    # Search upwards for .git directory
    for parent in [current_dir] + list(current_dir.parents):
        git_path = parent / '.git'
        if git_path.exists():
            git_dir = git_path
            break

    if not git_dir:
        print("❌ Not in a Git repository")
        return False

    # Create hooks directory if it doesn't exist
    hooks_dir = git_dir / 'hooks'
    hooks_dir.mkdir(exist_ok=True)

    # Post-commit hook content
    hook_content = f"""#!/bin/bash
# Auto-generated post-commit hook for Hugging Face dataset sync

# Check if the commit affects the dataset folder
if git diff-tree --name-only --no-commit-id HEAD | grep -q '^dataset/'; then
    echo "🤗 Dataset changes detected, syncing to Hugging Face..."

    # Change to dataset directory
    cd "{current_dir}"

    # Run sync script
    if [ -f "sync_to_hf.sh" ]; then
        bash sync_to_hf.sh
    else
        echo "❌ sync_to_hf.sh not found"
    fi
else
    echo "ℹ️  No dataset changes detected, skipping HF sync"
fi
"""

    # Write post-commit hook
    hook_path = hooks_dir / 'post-commit'
    with open(hook_path, 'w') as f:
        f.write(hook_content)

    # Make executable
    os.chmod(hook_path, stat.S_IRWXU | stat.S_IRGRP | stat.S_IROTH)

    print(f"✅ Git post-commit hook created: {hook_path}")
    print("🔄 Dataset will now automatically sync to Hugging Face after git commits")
    return True

def setup_github_action():
    """Setup GitHub Action for automatic HF sync."""

    # GitHub workflows directory
    github_dir = Path('.github/workflows')
    github_dir.mkdir(parents=True, exist_ok=True)

    # GitHub Action content
    action_content = """name: Sync Dataset to Hugging Face

on:
  push:
    paths:
      - 'dataset/**'
    branches:
      - main
      - master

jobs:
  sync-to-hf:
    runs-on: ubuntu-latest

    steps:
    - name: Checkout repository
      uses: actions/checkout@v3
      with:
        lfs: true

    - name: Set up Python
      uses: actions/setup-python@v4
      with:
        python-version: '3.9'

    - name: Install dependencies
      run: |
        pip install huggingface_hub datasets

    - name: Sync to Hugging Face
      env:
        HF_TOKEN: ${{ secrets.HF_TOKEN }}
      run: |
        cd dataset
        python upload_to_hf.py \\
          --repo-name stamp-dataset \\
          --commit-message "Auto-sync from GitHub: ${{ github.sha }}"
"""

    # Write GitHub Action
    action_path = github_dir / 'sync-hf-dataset.yml'
    with open(action_path, 'w') as f:
        f.write(action_content)

    print(f"✅ GitHub Action created: {action_path}")
    print("🔧 Add your HF_TOKEN to GitHub repository secrets")
    print("   Go to: Settings > Secrets and variables > Actions")
    print("   Add secret: HF_TOKEN = your_huggingface_token")

def main():
    print("🤗 STAMP Dataset Auto-Sync Setup")
    print("=================================")

    print("\\n1. Setting up Git post-commit hook...")
    if setup_git_hook():
        print("✅ Local Git hook setup complete")

    print("\\n2. Setting up GitHub Action...")
    setup_github_action()
    print("✅ GitHub Action setup complete")

    print("\\n🎉 Auto-sync setup completed!")
    print("\\nNext steps:")
    print("1. Configure repository name in sync_to_hf.sh")
    print("2. Login to Hugging Face: huggingface-cli login")
    print("3. For GitHub Action: Add HF_TOKEN to repository secrets")
    print("4. Test with: git commit -m 'test dataset sync'")

if __name__ == "__main__":
    main()