# backend/scraper.py

import os


def setup_kaggle_api():
    """Setup Kaggle API (lazy import)."""
    # ✅ Import kaggle CHỈ khi gọi hàm
    import json
    from kaggle.api.kaggle_api_extended import KaggleApi

    kaggle_json_path = os.path.join(os.environ.get('HOME', '/root'), '.config/kaggle/kaggle.json')

    if not os.path.exists(kaggle_json_path):
        print(f"⚠️  kaggle.json not found at {kaggle_json_path}")
        print("⚠️  Upload kaggle.json to HF Space or set KAGGLE_USERNAME/KAGGLE_KEY env vars.")
        return None

    with open(kaggle_json_path) as f:
        kaggle_credentials = json.load(f)

    os.environ['KAGGLE_USERNAME'] = kaggle_credentials['username']
    os.environ['KAGGLE_KEY'] = kaggle_credentials['key']

    return KaggleApi()


def download_dataset():
    """Download dataset from Kaggle."""
    api = setup_kaggle_api()

    if api is None:
        print("❌ Kaggle API not available. Skipping download.")
        return False

    dataset_name = "jackdaug/ecommerce-products-dataset"
    os.makedirs("data", exist_ok=True)

    print(f"📥 Downloading dataset: {dataset_name}")
    api.dataset_download_files(dataset_name, path="data", unzip=True)
    print("✅ Dataset downloaded!")

    return True


def run_scraper():
    """Run scraper."""
    print("🚀 Running scraper...")

    if download_dataset():
        print("✅ Scraper completed successfully!")
        return True
    else:
        print("❌ Scraper failed!")
        return False


# ✅ KHÔNG chạy scraper khi khởi động
if __name__ == "__main__":
    print("📦 scraper.py imported (not running automatically)")
    print("📦 Call run_scraper() manually or via API")