import aiohttp
from app.core.config import settings
import logging
from typing import Optional, Dict

class WecomClient:
    def __init__(self):
        self.corpid = settings.WECHAT_CORP_ID
        self.secret = settings.WECHAT_CORP_SECRET  # 注意：这里使用普通的 secret，不是 provider_secret
        self.access_token = None
        
    async def get_access_token(self) -> str:
        """获取企业微信普通access_token"""
        try:
            url = "https://qyapi.weixin.qq.com/cgi-bin/gettoken"
            params = {
                "corpid": self.corpid,
                "corpsecret": self.secret
            }
            
            async with aiohttp.ClientSession() as session:
                async with session.get(url, params=params) as response:
                    result = await response.json()
                    
                    if result.get("errcode") == 0:
                        self.access_token = result["access_token"]
                        return self.access_token
                    else:
                        logging.error(f"获取access_token返回: {result}")
                        raise Exception(f"获取access_token失败: {result}")
                        
        except Exception as e:
            logging.error(f"获取access_token失败: {str(e)}")
            raise
            
    async def miniprogram_to_userid(self, code: str) -> Optional[Dict]:
        """
        小程序code转换为企业微信userid
        注意：这里使用code而不是openid
        """
        try:
            url = "https://qyapi.weixin.qq.com/cgi-bin/miniprogram/jscode2session"
            params = {
                "access_token": await self.get_access_token(),
                "js_code": code,
                "grant_type": "authorization_code"
            }
            
            async with aiohttp.ClientSession() as session:
                async with session.get(url, params=params) as response:
                    result = await response.json()
                    
                    if result.get("errcode") == 0:
                        data = {
                            "userid": result.get("userid"),
                            "pending_id": result.get("pending_id"),
                            "session_key": result.get("session_key")
                        }
                        return data
                    else:
                        logging.error(f"code转换失败: {result}")
                        return None
                        
        except Exception as e:
            logging.error(f"code转换失败: {str(e)}")
            return None

    async def get_user_info(self, userid: str) -> Optional[Dict]:
        """获取企业成员信息"""
        try:
            url = "https://qyapi.weixin.qq.com/cgi-bin/user/get"
            params = {
                "access_token": await self.get_access_token(),
                "userid": userid
            }
            
            async with aiohttp.ClientSession() as session:
                async with session.get(url, params=params) as response:
                    result = await response.json()
                    
                    if result.get("errcode") == 0:
                        return result
                    else:
                        logging.error(f"获取用户信息失败: {result}")
                        return None
                        
        except Exception as e:
            logging.error(f"获取用户信息失败: {str(e)}")
            return None