# coding: utf-8
# +-------------------------------------------------------------------
# | 宝塔Linux面板
# +-------------------------------------------------------------------
# | Copyright (c) 2015-2020 宝塔软件(http://www.bt.cn) All rights reserved.
# +-------------------------------------------------------------------
# | Author: baozi <baozi@bt.cn>
# | 消息通道邮箱模块
# +-------------------------------------------------------------------

import re
import json
import requests
import traceback
import socket

import requests.packages.urllib3.util.connection as urllib3_cn
from requests.packages import urllib3
from typing import Optional, Union

from .util import write_push_log, get_test_msg, reset_allowed_gai_family

# 关闭警告
urllib3.disable_warnings()


class WeiXinMsg:

    def __init__(self, weixin_data):
        self.id = weixin_data["id"]
        self.config = weixin_data["data"]

    @classmethod
    def check_args(cls, args: dict) -> Union[dict, str]:
        if "url" not in args or "title" not in args:
            return "信息不完整"

        title = args["title"]
        if len(title) > 15:
            return '备注名称不能超过15个字符'

        if "send_type" in args:
            if args["send_type"] not in ["text", "markdown"]:
                return "发送类型错误"
            send_type = args["send_type"]
        else:
            send_type = "markdown"

        if "user" in args and isinstance(args["user"], list):
            user = args["user"]
        else:
            user = []

        if "isAtAll" in args and isinstance(args["isAtAll"], bool):
            atall = args["isAtAll"]
        else:
            atall = True

        data = {
            "url": args["url"],
            "title": title,
            "send_type": send_type,
            "user": user,
            "isAtAll": atall,
        }

        test_obj = cls({"data": data, "id": None})
        test_msg = {
            "msg_list": ['>配置状态：<font color=#20a53a>成功</font>\n']
        }

        test_task = get_test_msg("消息通道配置提醒")

        res = test_obj.send_msg(
            test_task.to_weixin_msg(test_msg, test_task.the_push_public_data()),
            "消息通道配置提醒"
        )
        if res is True:
            return data

        return res

    def send_msg(self, msg: str, title: str) -> Optional[str]:
        """
        @name 微信发送信息
        @msg string 消息正文(正文内容，必须包含
                1、服务器名称
                2、IP地址
                3、发送时间
            )
        @to_user string 指定发送人
        """
        if not self.config:
            return '未正确配置微信信息。'

        # user没有时默认为空
        if "user" not in self.config:
            self.config['user'] = []

        if "isAtAll" not in self.config and not self.config['user']:
            self.config['isAtAll'] = True

        at_user = []
        at_tag_str=""
        for user in self.config['user']:
            if isinstance(user, str):
                at_user.append(user)
                at_tag_str +="<@{}>".format(user)

        if self.config['isAtAll']:
            at_user.append("@all")
            # at_tag_str += "<@AllUsers>"  # 未找到 markdown 格式下如何 @all （@所有人）

        if "send_type" in self.config and self.config["send_type"] == "text":
            sep = "\n                "
            if sep in msg:
                msg = msg.replace(sep, "\n")
            reg = '<font.+>(.+)</font>'
            tmp = re.search(reg, msg)
            if tmp:
                tmp = tmp.groups()[0]
                msg = re.sub(reg, tmp, msg)

            data = {
                "msgtype": "text",
                "text": {
                    "content": msg,
                    "mentioned_list": at_user
                }
            }
        else:
            data = {
                "msgtype": "markdown",
                "markdown": {
                    "content": msg + "\n" + at_tag_str
                }
            }
        headers = {'Content-Type': 'application/json'}

        status = False
        error = None
        try:
            def allowed_gai_family():
                family = socket.AF_INET
                return family
            # allowed_gai_family_lib = urllib3_cn.allowed_gai_family
            urllib3_cn.allowed_gai_family = allowed_gai_family
            response = requests.post(
                url=self.config["url"],
                data=json.dumps(data),
                verify=False,
                headers=headers,
                timeout=10
            )
            reset_allowed_gai_family()

            if response.json()["errcode"] == 0:
                status = True
        except:
            error = traceback.format_exc()

        write_push_log("企业微信", status, title)
        return error if error else status

    def test_send_msg(self) -> Optional[str]:
        test_msg = {
            "msg_list": ['>配置状态：<font color=#20a53a>成功</font>\n\n']
        }
        test_task = get_test_msg("消息通道配置提醒")
        res = self.send_msg(
            test_task.to_weixin_msg(test_msg, test_task.the_push_public_data()),
            "消息通道配置提醒",
        )
        if res is None:
            return None
        return res