/**
 * Created by TaoHuang on 2016/12/12.
 */

'use strict';

const _ = require('lodash');
const CAPTCHA = require('../data/captcha.json');
const length = CAPTCHA.length - 1 || -1;

exports.gen = () => {
    if (length !== -1) {
        return Promise.resolve({
            code: 200,
            data: CAPTCHA[_.random(0, length)]
        });
    } else {
        return Promise.reject({
            code: 400,
            message: '验证码错误'
        });
    }
};