import {
  appRefCode
} from "@/assets/js/config";
import service from "@/plugin/axios";

let wxAppId = "wxd2941f9abd7ba978"; // 微信AppId

let WeChat = {
  getCode: (state) => {
    // 调起授权，获取code。注意：每次调用时先清除已储存的token，避免后续跳转监听到旧的token，一直401
    const url = window.location.href;
    const routeCode = url.split("#")[1];
    if (routeCode == 'weChatLogin' || routeCode == '/selectLoginMethod') {
      window.location.href = `https://open.weixin.qq.com/connect/oauth2/authorize?appid=${wxAppId}&redirect_uri=${encodeURIComponent(
        'https://www.tepcb.com/mobile/textbooks/#/personalCenter'
      )}&response_type=code&scope=snsapi_userinfo&state=${state}`;
    } else {
      window.location.href = `https://open.weixin.qq.com/connect/oauth2/authorize?appid=${wxAppId}&redirect_uri=${encodeURIComponent(
        window.location.href
      )}&response_type=code&scope=snsapi_userinfo&state=${state}`;
    }
  },
  getUrlInfo: state => {
    var url = window.location.search;
    var theRequest = {};
    if (url.indexOf(state) != -1) {
      var infoStr = url.substr(1);
      var infoList = infoStr.split("&");
      if (infoList.length) {
        for (var i = 0; i < infoList.length; i++) {
          let infoItem = infoList[i];
          theRequest[infoItem.split("=")[0]] = infoItem.split("=")[1];
        }
      } else {
        theRequest = null;
      }
    }
    return theRequest;
  },
  login: (code, callback) => {
    // 公众号登录
    service({
      url: "/identity/api/LoginByWeChatSocialCode",
      method: "post",
      data: {
        code,
        appRefCode,
        platform: appRefCode + "_WeChatLogin"
      }
    }).then(res => {
      if (res.status == "Ok") {
        if (callback) callback(res.token);
      } else {
        // eslint-disable-next-line no-unused-vars
        let msg = "";
        try {
          msg = "登录失败！" + "errmsg:" + JSON.parse(res.message).errmsg;
        } catch (error) {
          msg = "登录失败！";
        }
      }
    });
  },
  // 微信支付
  pay: (res, callback) => {
    if (res) {
      if (typeof WeixinJSBridge === "undefined") {
        // 微信浏览器内置对象。参考微信官方文档
        if (document.addEventListener) {
          document.addEventListener(
            "WeixinJSBridgeReady",
            WeChat.onBridgeReady(res, callback),
            false
          );
        } else if (document.attachEvent) {
          document.attachEvent(
            "WeixinJSBridgeReady",
            WeChat.onBridgeReady(res, callback)
          );
          document.attachEvent(
            "onWeixinJSBridgeReady",
            WeChat.onBridgeReady(res, callback)
          );
        }
      } else {
        // 准备调用微信支付
        WeChat.onBridgeReady(res, callback);
      }
    }
  },
  onBridgeReady: (data, callback) => {
    const resData = JSON.parse(data);
    // eslint-disable-next-line
    WeixinJSBridge.invoke(
      "getBrandWCPayRequest", {
        appId: resData.appId, // 公众号名称，由商户传入
        timeStamp: resData.timeStamp, // 时间戳
        nonceStr: resData.nonceStr, // 随机串
        package: resData.package, // 预支付id
        signType: resData.signType, // 微信签名方式
        paySign: resData.paySign // 微信签名
      },
      function (res) {
        // 使用以上方式判断前端返回,微信团队郑重提示：res.err_msg将在用户支付成功后返回ok，但并不保证它绝对可靠。
        if (res.err_msg == "get_brand_wcpay_request:ok") {
          // 支付成功
          if (callback) {
            const flag = true;
            callback(flag);
          }
        } else if (res.err_msg == "get_brand_wcpay_request:cancel") {
          // 支付取消
          if (callback) {
            const flag = false;
            callback(flag, "支付取消");
          }
        } else {
          // 支付失败
          if (callback) {
            const flag = false;
            callback(flag, res.errMsg || res.err_msg);
          }
        }
      } 
    );
  }
};

export default WeChat;