智能视频处理双12优惠活动

# 示例：处理用户参与优惠活动的逻辑
def apply_promotion(user_id, promotion_code):
    try:
        # 验证优惠码有效性
        if not is_promotion_valid(promotion_code):
            return {"status": "error", "message": "Invalid promotion code"}

        # 应用优惠
        user = get_user_info(user_id)
        if user:
            user['balance'] += calculate_promotion_value(promotion_code)
            update_user_info(user)
            return {"status": "success", "message": "Promotion applied successfully"}
        else:
            return {"status": "error", "message": "User not found"}
    except Exception as e:
        return {"status": "error", "message": str(e)}

def is_promotion_valid(promotion_code):
    # 查询数据库验证优惠码是否存在且有效
    pass

def get_user_info(user_id):
    # 从数据库获取用户信息
    pass

def calculate_promotion_value(promotion_code):
    # 根据优惠码计算优惠金额
    pass

def update_user_info(user):
    # 更新用户信息到数据库
    pass