# -*- coding: utf-8 -*-


import time

from wechatpy.client.api.base import BaseWeChatAPI
from wechatpy.utils import WeChatSigner


class WeChatJSAPI(BaseWeChatAPI):
    """
    https://work.weixin.qq.com/api/doc#90001/90144/90539
    """

    def get_ticket(self):
        """
        获取企业的jsapi_ticket

        https://work.weixin.qq.com/api/doc#90001/90144/90539/获取企业的jsapi_ticket/

        :return: 返回的 JSON 数据包
        """
        return self._get("get_jsapi_ticket")

    def get_jsapi_signature(self, noncestr, ticket, timestamp, url):
        """
        获取 JSAPI 签名

        https://work.weixin.qq.com/api/doc#90001/90144/90539/签名算法/

        :param noncestr: nonce string
        :param ticket: JS-SDK ticket
        :param timestamp: 时间戳
        :param url: URL
        :return: 签名
        """
        data = [
            "noncestr={noncestr}".format(noncestr=noncestr),
            "jsapi_ticket={ticket}".format(ticket=ticket),
            "timestamp={timestamp}".format(timestamp=timestamp),
            "url={url}".format(url=url),
        ]
        signer = WeChatSigner(delimiter=b"&")
        signer.add_data(*data)
        return signer.signature

    def get_agent_ticket(self):
        """
        获取应用的jsapi_ticket

        https://work.weixin.qq.com/api/doc#90001/90144/90539/获取应用的jsapi_ticket/

        :return: 返回的 JSON 数据包
        """
        return self._get("ticket/get", params={"type": "agent_config"})

    def get_jsapi_ticket(self):
        """
        获取微信 JS-SDK ticket

        该方法会通过 session 对象自动缓存管理 ticket

        :return: ticket
        """
        ticket_key = "{}_jsapi_ticket".format(self._client.corp_id)
        expires_at_key = "{}_jsapi_ticket_expires_at".format(self._client.corp_id)
        ticket = self.session.get(ticket_key)
        expires_at = self.session.get(expires_at_key) or 0
        if not ticket or expires_at < int(time.time()):
            jsapi_ticket = self.get_ticket()
            ticket = jsapi_ticket["ticket"]
            expires_at = int(time.time()) + int(jsapi_ticket["expires_in"])
            self.session.set(ticket_key, ticket)
            self.session.set(expires_at_key, expires_at)
        return ticket

    def get_agent_jsapi_ticket(self):
        """
        获取应用的jsapi_ticket

        该方法会通过 session 对象自动缓存管理 ticket

        :return: ticket
        """
        ticket_key = "{}_agent_jsapi_ticket".format(self._client.corp_id)
        expires_at_key = "{}_agent_jsapi_ticket_expires_at".format(self._client.corp_id)
        ticket = self.session.get(ticket_key)
        expires_at = self.session.get(expires_at_key) or 0
        if not ticket or expires_at < int(time.time()):
            jsapi_ticket = self.get_agent_ticket()
            ticket = jsapi_ticket["ticket"]
            expires_at = int(time.time()) + int(jsapi_ticket["expires_in"])
            self.session.set(ticket_key, ticket)
            self.session.set(expires_at_key, expires_at)
        return ticket
