"""
Hook script to load user context before agent execution

This script is executed automatically before the agent processes the user's message.
It fetches user information from the backend API and injects it into the system prompt.
"""
import logging
import os

logger = logging.getLogger('app')


def execute(config) -> str:
    """
    Execute hook to load user context

    Args:
        config: AgentConfig 对象

    Returns:
        str: Content to inject into system prompt
    """
    try:
        # 从config获取参数
        user_identifier = getattr(config, 'user_identifier', '')
        bot_id = getattr(config, 'bot_id', '')

        # 如果没有user_identifier，返回空
        if not user_identifier:
            return ""

        # 这里可以调用后端API获取用户信息
        # 示例代码（需要根据实际的后端API调整）：
        #
        # import requests
        # from utils.settings import BACKEND_HOST, MASTERKEY
        #
        # url = f"{BACKEND_HOST}/api/user/info"
        # headers = {"Authorization": f"Bearer {MASTERKEY}"}
        # params = {"identifier": user_identifier}
        #
        # response = requests.get(url, headers=headers, params=params, timeout=2)
        # if response.status_code == 200:
        #     user_data = response.json()
        # else:
        #     return ""

        # 示例：模拟从API获取的用户数据
        # 实际使用时请替换为真实的API调用
        user_data = {
            'name': 'Test User',
            'email': user_identifier,
            'location': 'Tokyo',
            'sensor_id': 'sensor-12345'
        }

        # 构建注入内容
        context_lines = [
            f"**User Information:**",
            f"- Name: {user_data.get('name', 'Unknown')}",
            f"- Email: {user_data.get('email', user_identifier)}",
            f"- Location: {user_data.get('location', 'Unknown')}",
            f"- Sensor ID: {user_data.get('sensor_id', 'Unknown')}",
        ]

        logger.info(f"Loaded user context for {user_identifier}")
        return "\n".join(context_lines)

    except Exception as e:
        logger.error(f"Failed to load user context: {e}")
        return ""

    return ""