import httpx
from typing import Dict, Any
from app.core.biz_exception import BizLogicError
from app.schemas.wechat import WechatIn

class WechatService:
    
    @staticmethod
    async def _send_webhook(api_token: str, payload: Dict[str, Any]):
        """
        内部私有方法：发送 HTTP 请求到企业微信 Webhook
        """
        url = f"https://qyapi.weixin.qq.com/cgi-bin/webhook/send?key={api_token}"

        try:
            async with httpx.AsyncClient(timeout=10) as client:
                response = await client.post(url, json=payload)

        except httpx.RequestError as e:
            raise BizLogicError(f"Wechat push request error: {e}")

        if response.status_code != 200:
            raise BizLogicError(f"Wechat push failed, http_status={response.status_code}")

        data = response.json()
        if data.get("errcode") != 0:
            raise BizLogicError(
                f"Wechat push failed, errcode={data.get('errcode')}, errmsg={data.get('errmsg')}"
            )
        return True

    @staticmethod
    async def push_to_wechat(payload: WechatIn):
        """
        [保留原函数兼容] 发送纯文本消息
        """
        body = {
            "msgtype": "text",
            "text": {
                "content": payload.message
                # "mentioned_mobile_list":["13800006789","@all"] # 可选：如需艾特所有人
            }
        }
        return await WechatService._send_webhook(payload.api_token, body)

    @staticmethod
    async def push_markdown(api_token: str, content: str):
        """
        发送 Markdown 消息 (支持标题、加粗、链接、颜色)
        """
        body = {
            "msgtype": "markdown",
            "markdown": {
                "content": content
            }
        }
        return await WechatService._send_webhook(api_token, body)

    @staticmethod
    async def push_payment_template(api_token: str, data: Dict[str, Any]):
        """
        专门用于发送【支付确认】的模板消息
        适配之前的业务逻辑，将其转换为 Webhook 支持的 Markdown 格式
        
        Args:
            api_token: Webhook Key
            data: 包含 order_id, amount, currency, user_email, confirm_url 等字段的字典
        """
        
        # 1. 格式化金额
        amount_fen = data.get('amount', 0)
        amount_str = f"{amount_fen / 100:,.2f}"
        currency = data.get('currency', 'CNY')
        
        # 2. 构造 Markdown 内容
        # <font color="warning"> 红色/橙色
        # <font color="info"> 绿色
        # <font color="comment"> 灰色
        markdown_content = f"""**💰 新增待确认支付**
> 订单号：<font color="comment">{data.get('order_id', 'N/A')}</font>
> 用户：<font color="comment">{data.get('user_email', 'Unknown')}</font>
> 金额：<font color="warning">{amount_str} {currency}</font>
> 渠道：{data.get('provider', 'Manual')}
> 时间：{data.get('time_str', '')}

请核实资金到账情况。
👉 [点击此处进行系统确认]({data.get('confirm_url')})"""

        return await WechatService.push_markdown(api_token, markdown_content)