import requests
from django.conf import settings

class BarcodeService:
    """
    与中国商品信息服务平台通信的服务类
    """
    BASE_URL = "https://api.example.com/barcode"  # 替换为实际的API地址
    
    @classmethod
    def search_barcode(cls, barcode):
        """
        根据条码查询商品信息
        
        Args:
            barcode: 商品条码
            
        Returns:
            dict: 包含商品信息的字典，如果未找到则返回None
        """
        try:
            # 这里需要替换为实际的API密钥和参数
            api_key = getattr(settings, 'BARCODE_API_KEY', '')
            
            if not api_key:
                return None
                
            response = requests.get(
                f"{cls.BASE_URL}/query",
                params={
                    "barcode": barcode,
                    "api_key": api_key
                },
                timeout=5
            )
            
            if response.status_code == 200:
                data = response.json()
                if data.get('success'):
                    return {
                        'name': data.get('name', ''),
                        'specification': data.get('specification', ''),
                        'manufacturer': data.get('manufacturer', ''),
                        'category': data.get('category', ''),
                        'suggested_price': data.get('price', 0),
                        'image_url': data.get('image_url', ''),
                        'description': data.get('description', '')
                    }
            return None
        except Exception as e:
            print(f"条码查询出错: {e}")
            return None