'use strict';

const balanceUtil = require('../../../admin/finance/balance/sys/util.js');

module.exports = {
    /**
     * 查询当前用户商户的实时余额。
     * @url client/userBalanceLog/kh/getMerchantBalance 前端调用的url参数地址
     * @param {String} accNo 企业用户号/商户号
     */
    main: async (event) => {
        const { data = {}, userInfo = {}, util } = event;
        const { vk } = util;
        const requestedAccNo = String(data.accNo || '').trim();
        const userAccNo = String(userInfo.merNo || '').trim();

        // 商户号来自当前登录用户，避免通过客户端参数查询其他企业的余额。
        if (requestedAccNo && userAccNo && requestedAccNo !== userAccNo) {
            return {
                code: 403,
                msg: '无权查询该商户余额'
            };
        }
        const accNo = userAccNo || requestedAccNo;

        if (!accNo) {
            return {
                code: -1,
                msg: 'accNo不能为空'
            };
        }

        const remoteResponse = await balanceUtil.requestMerchantBalance({
            vk,
            accNo
        });
        const merchantBalance = balanceUtil.getRemoteMerchantBalance(remoteResponse);

        if (merchantBalance === null) {
            return {
                code: -1,
                msg: (remoteResponse && (remoteResponse.msg || remoteResponse.message)) || '未获取到余额'
            };
        }

        return {
            code: 0,
            msg: '',
            data: {
                accNo,
                balance: merchantBalance
            }
        };
    }
};